Document_and_Entity_Informatio
Document and Entity Information | 6 Months Ended |
Jun. 30, 2014 | |
Entity Registrant Name | 'EXELON CORP |
Entity Central Index Key | '0001109357 |
Document Type | '10-Q |
Document Period End Date | 30-Jun-14 |
Amendment Flag | 'false |
Document Fiscal Year Focus | '2014 |
Document Fiscal Period Focus | 'Q2 |
Current Fiscal Year End Date | '--12-31 |
Entity Well-known Seasoned Issuer | 'Yes |
Entity Voluntary Filers | 'No |
Entity Current Reporting Status | 'Yes |
Entity Filer Category | 'Large Accelerated Filer |
Entity Common Stock Shares Outstanding | 859,197,443 |
Exelon Generation Co L L C [Member] | ' |
Entity Registrant Name | 'EXELON GENERATION CO LLC |
Entity Central Index Key | '0001168165 |
Entity Filer Category | 'Non-accelerated Filer |
Commonwealth Edison Co [Member] | ' |
Entity Registrant Name | 'COMMONWEALTH EDISON CO |
Entity Central Index Key | '0000022606 |
Entity Filer Category | 'Non-accelerated Filer |
Entity Common Stock Shares Outstanding | 127,016,914 |
PECO Energy Co [Member] | ' |
Entity Registrant Name | 'PECO ENERGY CO |
Entity Central Index Key | '0000078100 |
Entity Filer Category | 'Non-accelerated Filer |
Entity Common Stock Shares Outstanding | 170,478,507 |
Baltimore Gas and Electric Company [Member] | ' |
Entity Registrant Name | 'BALTIMORE GAS AND ELECTRIC |
Entity Central Index Key | '0000009466 |
Entity Filer Category | 'Non-accelerated Filer |
Entity Common Stock Shares Outstanding | 1,000 |
Consolidated_Statements_of_Ope
Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $) | 3 Months Ended | 6 Months Ended | ||||
In Millions, except Per Share data, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | ||
Operating revenues [Abstract] | ' | ' | ' | ' | ||
Operating revenues from affiliates | $0 | $0 | ' | ' | ||
Revenues | 6,024 | 6,141 | 13,261 | [1] | 12,223 | [1] |
Operating expenses | ' | ' | ' | ' | ||
Purchased power and fuel | 2,346 | 2,132 | 6,352 | 4,795 | ||
Purchased power from affiliate | 66 | 287 | 400 | 605 | ||
Operating and maintenance | 2,166 | 1,892 | 4,024 | 3,656 | ||
Depreciation and amortization | 590 | 533 | 1,154 | 1,076 | ||
Taxes other than income | 288 | 271 | 580 | 548 | ||
Total operating expenses | 5,456 | 5,115 | 12,510 | 10,680 | ||
Gain on consolidation of CENG | 261 | ' | ' | ' | ||
Loss on equity method investments | 0 | -21 | -20 | -30 | ||
Operating income | 829 | 1,005 | 992 | 1,513 | ||
Other income and deductions | ' | ' | ' | ' | ||
Interest expense | -228 | -246 | -445 | -863 | ||
Interest expense to affiliates, net | -10 | -6 | -20 | -13 | ||
Other, net | 243 | -17 | 348 | 155 | ||
Total other income and deductions | 5 | -269 | -117 | -721 | ||
Income before income taxes | 834 | 736 | 875 | 792 | ||
Income taxes | 277 | 239 | 224 | 294 | ||
Net income | 557 | 497 | ' | 498 | ||
Net income (loss) attributable to noncontrolling interests and preferred security dividends | -35 | -7 | -39 | -12 | ||
Net income on common stock | 522 | 490 | 612 | 486 | ||
Pension and non-pension postretirement benefit plans: | ' | ' | ' | ' | ||
Prior service benefit reclassified to periodic benefit cost, net of tax | 6 | 0 | 6 | -1 | ||
Actuarial loss reclassified to periodic cost, net of tax | -38 | -50 | -72 | -100 | ||
Transition obligation reclassified to periodic cost, net of tax | ' | 0 | ' | 0 | ||
Pension and non-pension postretirement benefit plans valuation adjustment | 258 | 2 | 246 | 77 | ||
Deferred Compensation Unit Valuation Adjustment | 0 | 10 | 0 | 10 | ||
Change in unrealized gain (loss) on cash-flow hedges | -48 | -65 | -73 | -123 | ||
Change in unrealized income (loss) on equity investments | 0 | 8 | 11 | 36 | ||
Change in unrealized income (loss) on foreign currency translation | 4 | -5 | -1 | -6 | ||
Change in unrealized gain (loss) on marketable securities | 1 | 0 | 1 | -1 | ||
Reversal of CENG Equity Method AOCI | -116 | ' | -116 | ' | ||
Other comprehensive income (loss) | 131 | 0 | ' | 94 | ||
Comprehensive income | 688 | 497 | 785 | 592 | ||
Average shares of common stock outstanding: | ' | ' | ' | ' | ||
Basic | 860 | 856 | 860 | 856 | ||
Diluted | 864 | 860 | 863 | 859 | ||
Earnings per average common share - basic | ' | ' | ' | ' | ||
Net income | $0.61 | $0.57 | $0.71 | $0.57 | ||
Earnings per average common share - diluted | ' | ' | ' | ' | ||
Net income | $0.60 | $0.57 | $0.71 | $0.57 | ||
Dividends per common share | $0.31 | $0.31 | $0.62 | $0.84 | ||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ||
Operating revenues [Abstract] | ' | ' | ' | ' | ||
Operating revenues | 3,588 | 3,718 | 7,644 | 6,859 | ||
Operating revenues from affiliates | 201 | 352 | 535 | 744 | ||
Revenues | 3,789 | 4,070 | 8,179 | 7,603 | ||
Operating expenses | ' | ' | ' | ' | ||
Purchased power and fuel | 1,766 | 1,656 | 4,774 | 3,503 | ||
Purchased power and fuel from affiliate | 69 | 290 | 417 | 611 | ||
Operating and maintenance | 1,255 | 1,041 | 2,194 | 2,007 | ||
Operating and maintenance from affiliate | 158 | 148 | 305 | 295 | ||
Depreciation and amortization | 254 | 210 | 466 | 424 | ||
Taxes other than income | 118 | 101 | 223 | 194 | ||
Total operating expenses | 3,620 | 3,446 | 8,379 | 7,034 | ||
Gain on consolidation of CENG | 261 | ' | -268 | ' | ||
Loss on equity method investments | -1 | -21 | -20 | -30 | ||
Operating income | 429 | 603 | 41 | 539 | ||
Other income and deductions | ' | ' | ' | ' | ||
Interest expense | -74 | -77 | -147 | -142 | ||
Interest expense to affiliates, net | 12 | 16 | 25 | 34 | ||
Other, net | 228 | -33 | 318 | 95 | ||
Total other income and deductions | 142 | -126 | 146 | -81 | ||
Income before income taxes | 571 | 477 | 187 | 458 | ||
Income taxes | 199 | 149 | -1 | 148 | ||
Net income | 372 | 328 | 188 | 310 | ||
Income (Loss) attributable to noncontrolling interest | -32 | 2 | -33 | 1 | ||
Net income on membership interest | 340 | 330 | 155 | 311 | ||
Pension and non-pension postretirement benefit plans: | ' | ' | ' | ' | ||
Change in unrealized gain (loss) on cash-flow hedges | -45 | -137 | -70 | -267 | ||
Change in unrealized income (loss) on equity investments | 0 | 8 | 11 | 36 | ||
Change in unrealized income (loss) on foreign currency translation | 4 | -5 | -1 | -6 | ||
Change in unrealized gain (loss) on marketable securities | 2 | ' | -1 | -1 | ||
Reversal of CENG Equity Method AOCI | -116 | ' | -116 | ' | ||
Other comprehensive income (loss) | -155 | -134 | ' | -238 | ||
Comprehensive income | 217 | 194 | 11 | 72 | ||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ||
Operating revenues [Abstract] | ' | ' | ' | ' | ||
Operating revenues | 1,128 | 1,080 | 2,261 | 2,238 | ||
Operating revenues from affiliates | 0 | 0 | 1 | 1 | ||
Revenues | 1,128 | 1,080 | 2,262 | 2,239 | ||
Operating expenses | ' | ' | ' | ' | ||
Purchased power | 204 | 127 | 416 | 364 | ||
Purchased power from affiliate | 65 | 121 | 173 | 266 | ||
Operating and maintenance | 316 | 319 | 603 | 611 | ||
Operating and maintenance from affiliate | 39 | 40 | 78 | 76 | ||
Depreciation and amortization | 174 | 170 | 347 | 337 | ||
Taxes other than income | 72 | 71 | 149 | 145 | ||
Total operating expenses | 870 | 848 | 1,766 | 1,799 | ||
Operating income | 258 | 232 | 496 | 440 | ||
Other income and deductions | ' | ' | ' | ' | ||
Interest expense | -76 | -72 | -153 | -422 | ||
Interest expense to affiliates, net | -4 | -4 | -7 | -7 | ||
Other, net | 5 | 6 | 10 | 11 | ||
Total other income and deductions | -75 | -70 | -150 | -418 | ||
Income before income taxes | 183 | 162 | 346 | 22 | ||
Income taxes | 72 | 66 | 137 | 8 | ||
Net income | 111 | 96 | 209 | 14 | ||
Pension and non-pension postretirement benefit plans: | ' | ' | ' | ' | ||
Comprehensive income | 111 | 96 | 209 | 14 | ||
PECO Energy Co [Member] | ' | ' | ' | ' | ||
Operating revenues [Abstract] | ' | ' | ' | ' | ||
Operating revenues | 656 | 672 | 1,648 | 1,567 | ||
Operating revenues from affiliates | 0 | 0 | 1 | 0 | ||
Revenues | 656 | 672 | 1,649 | 1,567 | ||
Operating expenses | ' | ' | ' | ' | ||
Purchased power | 193 | 161 | 570 | 426 | ||
Purchased power from affiliate | 48 | 97 | 135 | 238 | ||
Operating and maintenance | 160 | 155 | 416 | 319 | ||
Operating and maintenance from affiliate | 24 | 26 | 48 | 50 | ||
Depreciation and amortization | 59 | 56 | 117 | 113 | ||
Taxes other than income | 38 | 39 | 80 | 80 | ||
Total operating expenses | 522 | 534 | 1,366 | 1,226 | ||
Operating income | 134 | 138 | 283 | 341 | ||
Other income and deductions | ' | ' | ' | ' | ||
Interest expense | -25 | -25 | -50 | -51 | ||
Interest expense to affiliates, net | -3 | -3 | -6 | -6 | ||
Other, net | 1 | 0 | 3 | 3 | ||
Total other income and deductions | -27 | -28 | -53 | -54 | ||
Income before income taxes | 107 | 110 | 230 | 287 | ||
Income taxes | 23 | 32 | 57 | 87 | ||
Net income | 84 | 78 | 173 | 200 | ||
Preferred security dividends | 0 | -6 | 0 | -7 | ||
Net income on common stock | 84 | 72 | 173 | 193 | ||
Pension and non-pension postretirement benefit plans: | ' | ' | ' | ' | ||
Comprehensive income | 84 | 78 | 173 | 200 | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ||
Operating revenues [Abstract] | ' | ' | ' | ' | ||
Operating revenues | 651 | 649 | 1,689 | 1,525 | ||
Operating revenues from affiliates | 2 | 4 | 18 | 8 | ||
Revenues | 653 | 653 | 1,707 | 1,533 | ||
Operating expenses | ' | ' | ' | ' | ||
Purchased power and fuel | 183 | 189 | 592 | 501 | ||
Purchased power and fuel from affiliate | 85 | 99 | 205 | 212 | ||
Operating and maintenance | 163 | 139 | 326 | 266 | ||
Operating and maintenance from affiliate | 25 | 21 | 50 | 37 | ||
Depreciation and amortization | 89 | 82 | 197 | 175 | ||
Taxes other than income | 53 | 54 | 113 | 109 | ||
Total operating expenses | 598 | 584 | 1,483 | 1,300 | ||
Operating income | 55 | 69 | 224 | 233 | ||
Other income and deductions | ' | ' | ' | ' | ||
Interest expense | -23 | -28 | -47 | -58 | ||
Interest expense to affiliates, net | 4 | 4 | 8 | 8 | ||
Other, net | 5 | 4 | 9 | 9 | ||
Total other income and deductions | -22 | -28 | -46 | -57 | ||
Income before income taxes | 33 | 41 | 178 | 176 | ||
Income taxes | 14 | 16 | 72 | 70 | ||
Net income | 19 | 25 | 106 | 106 | ||
Preferred security dividends | -3 | -3 | -6 | -6 | ||
Net income on common stock | 16 | 22 | 100 | 100 | ||
Pension and non-pension postretirement benefit plans: | ' | ' | ' | ' | ||
Comprehensive income | $19 | $25 | $106 | $106 | ||
[1] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. |
Consolidated_Statements_of_Ope1
Consolidated Statements of Operations and Comprehensive Income (Unaudited) (Parenthetical) (USD $) | 3 Months Ended | 6 Months Ended | ||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 |
Prior service costs | $5 | $0 | $5 | $1 |
Actuarial loss reclassified to periodic cost, taxes | -23 | -32 | -46 | -66 |
Transition obligation | ' | -1 | ' | ' |
Pension and non-pension postretirement benefit plan valuation adjustment, taxes | -166 | ' | -159 | -50 |
Change in unrealized gain (loss) on cash flow hedges, taxes | 28 | 45 | 48 | 77 |
Change in unrealized gain (loss) on equity investments taxes | 77 | -5 | 70 | -23 |
Deferred Compensation Unit Valuation Adjustment tax | ' | -6 | ' | -6 |
Actuarial loss reclassified to periodic cost, net of tax | -38 | -50 | -72 | -100 |
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Net of Tax | -6 | 0 | -6 | 1 |
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Transition (Asset) Obligation, Net of Tax | ' | 0 | ' | 0 |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' |
Change in unrealized gain (loss) on cash flow hedges, taxes | 25 | 89 | 44 | 175 |
Change in unrealized gain (loss) on marketable securities, taxes | ' | ' | -2 | ' |
Change in unrealized gain (loss) on equity investments taxes | $77 | ($5) | $70 | ($23) |
Consolidated_Statements_of_Cas
Consolidated Statements of Cash Flows (Unaudited) (USD $) | 6 Months Ended | |
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 |
Cash flows from operating activities | ' | ' |
Net income | ' | $498 |
Adjustments to reconcile net income to net cash flows provided by operating activities: | ' | ' |
Depreciation, amortization and accretion | 1,925 | 1,972 |
Impairment of assets held for sale | 0 | ' |
Deferred income taxes and amortization of investment tax credits | 133 | -468 |
Net fair value changes related to derivatives | 751 | -28 |
Net realized and unrealized (gains) losses on nuclear decommissioning trust fund investments | -168 | -27 |
Other non-cash operating activities | 567 | 576 |
Changes in assets and liabilities: | ' | ' |
Accounts receivable | 48 | 131 |
Inventories | -150 | -18 |
Accounts payable, accrued expenses and other current liabilities | -358 | -583 |
Option premiums paid, net | 21 | -10 |
Counterparty collateral (posted) received, net | -606 | -259 |
Income taxes | -16 | 705 |
Pension and non-pension postretirement benefit contributions | -499 | -284 |
Other assets and liabilities | -280 | 133 |
Net cash flows provided by operating activities | 1,751 | 2,338 |
Cash flows from investing activities | ' | ' |
Capital expenditures | -2,501 | -2,518 |
Cash Proceeds from Direct Finance Lease Contract Termination | 335 | ' |
Proceeds from nuclear decommissioning trust fund sales | 4,219 | 1,448 |
Investment in nuclear decommissioning trust funds | -4,238 | -1,565 |
Net cash acquired from consolidation of CENG | 0 | ' |
Proceeds from sale of long-lived assets | 32 | 4 |
Cash acquired from Constellation | 129 | ' |
Acquisitions | -66 | -3 |
Proceeds from sales of investments | 0 | ' |
Change in restricted cash | -40 | 22 |
Other investing activities | -57 | 63 |
Net cash flows provided by (used in) investing activities | -2,187 | -2,549 |
Cash flows from financing activities | ' | ' |
Payment of accounts receivable agreement | 0 | ' |
Changes in short-term debt | 293 | 662 |
Redemption of preferred securities | 0 | -93 |
Issuance of long-term debt | 2,100 | 509 |
Retirement or repayment of long-term debt | -1,191 | -616 |
Dividends paid on common stock | -533 | -716 |
Dividends paid to former Constellation shareholders | 0 | ' |
Proceeds from employee stock plans | 18 | 32 |
Dividends paid to non-controlling interest of consolidated VIE | -415 | 63 |
Other financing activities | -83 | -62 |
Net cash flows used in financing activities | 189 | -284 |
Increase (decrease) in cash and cash equivalents | -247 | -495 |
Cash and cash equivalents at beginning of period | 1,609 | 1,486 |
Cash and cash equivalents at end of period | 1,362 | 991 |
CityPublicServiceBoardSanAntonio [Member] | EquipmentLeasedToOtherPartyMember | ' | ' |
Cash flows from investing activities | ' | ' |
Cash Proceeds from Direct Finance Lease Contract Termination | 335 | 0 |
Exelon Generation Co L L C [Member] | ' | ' |
Cash flows from operating activities | ' | ' |
Net income | 188 | 310 |
Adjustments to reconcile net income to net cash flows provided by operating activities: | ' | ' |
Depreciation, amortization and accretion | 1,242 | 1,358 |
Impairment of assets held for sale | 0 | 0 |
Deferred income taxes and amortization of investment tax credits | -15 | -44 |
Net fair value changes related to derivatives | 760 | -21 |
Net realized and unrealized (gains) losses on nuclear decommissioning trust fund investments | -168 | -27 |
Other non-cash operating activities | 209 | 315 |
Gain on consolidation of CENG | 268 | ' |
Changes in assets and liabilities: | ' | ' |
Accounts receivable | 63 | 88 |
Receivables from and payables to affiliates, net | 20 | -29 |
Inventories | -170 | -38 |
Accounts payable, accrued expenses and other current liabilities | -273 | -426 |
Option premiums paid, net | 21 | -10 |
Counterparty collateral (posted) received, net | -633 | -303 |
Income taxes | 72 | 265 |
Pension and non-pension postretirement benefit contributions | -210 | -120 |
Other assets and liabilities | -56 | -168 |
Net cash flows provided by operating activities | 742 | 1,150 |
Cash flows from investing activities | ' | ' |
Capital expenditures | -1,103 | -1,277 |
Changes in intercompany money pool | 190 | 263 |
Proceeds from nuclear decommissioning trust fund sales | 4,219 | 1,448 |
Investment in nuclear decommissioning trust funds | -4,238 | -1,565 |
Net cash acquired from consolidation of CENG | 129 | ' |
Proceeds from sale of long-lived assets | 32 | ' |
Acquisitions | 66 | ' |
Change in restricted cash | -17 | -11 |
Other investing activities | -14 | 27 |
Net cash flows provided by (used in) investing activities | -1,014 | -1,378 |
Cash flows from financing activities | ' | ' |
Changes in short-term debt | 46 | 288 |
Issuance of long-term debt | 300 | 209 |
Retirement or repayment of long-term debt | -538 | -458 |
Distribution to member | -235 | -474 |
Contributions from member | 0 | 0 |
Dividends paid to non-controlling interest of consolidated VIE | -415 | 63 |
Other financing activities | -29 | -49 |
Net cash flows used in financing activities | -681 | -221 |
Increase (decrease) in cash and cash equivalents | -953 | -449 |
Cash and cash equivalents at beginning of period | 1,258 | 671 |
Cash and cash equivalents at end of period | 305 | 222 |
Exelon Generation Co L L C [Member] | EquipmentLeasedToOtherPartyMember | ' | ' |
Cash flows from investing activities | ' | ' |
Changes in intercompany money pool | -44 | ' |
Commonwealth Edison Co [Member] | ' | ' |
Cash flows from operating activities | ' | ' |
Net income | 209 | 14 |
Adjustments to reconcile net income to net cash flows provided by operating activities: | ' | ' |
Depreciation, amortization and accretion | 347 | 337 |
Deferred income taxes and amortization of investment tax credits | 63 | -226 |
Other non-cash operating activities | 99 | 39 |
Changes in assets and liabilities: | ' | ' |
Accounts receivable | -83 | 18 |
Receivables from and payables to affiliates, net | -46 | -26 |
Inventories | -4 | -11 |
Accounts payable, accrued expenses and other current liabilities | 27 | 20 |
Income taxes | 5 | 240 |
Pension and non-pension postretirement benefit contributions | -236 | -119 |
Other assets and liabilities | 48 | 217 |
Net cash flows provided by operating activities | 429 | 503 |
Cash flows from investing activities | ' | ' |
Capital expenditures | -747 | -711 |
Proceeds from sales of investments | 7 | 4 |
Purchases of investments | -3 | -3 |
Change in restricted cash | -2 | -3 |
Other investing activities | 14 | 20 |
Net cash flows provided by (used in) investing activities | -731 | -693 |
Cash flows from financing activities | ' | ' |
Changes in short-term debt | 314 | 374 |
Issuance of long-term debt | 650 | 0 |
Retirement or repayment of long-term debt | -617 | -125 |
Contributions from parent | 112 | 0 |
Dividends paid on common stock | -153 | -110 |
Other financing activities | -2 | 0 |
Net cash flows used in financing activities | 304 | 139 |
Increase (decrease) in cash and cash equivalents | 2 | -51 |
Cash and cash equivalents at beginning of period | 36 | 144 |
Cash and cash equivalents at end of period | 38 | 93 |
PECO Energy Co [Member] | ' | ' |
Cash flows from operating activities | ' | ' |
Net income | 173 | 200 |
Adjustments to reconcile net income to net cash flows provided by operating activities: | ' | ' |
Depreciation, amortization and accretion | 117 | 113 |
Deferred income taxes and amortization of investment tax credits | 6 | 25 |
Other non-cash operating activities | 50 | 50 |
Changes in assets and liabilities: | ' | ' |
Accounts receivable | 34 | 55 |
Receivables from and payables to affiliates, net | -21 | -18 |
Inventories | 22 | 27 |
Accounts payable, accrued expenses and other current liabilities | 30 | 35 |
Income taxes | 54 | 39 |
Pension and non-pension postretirement benefit contributions | -11 | -10 |
Other assets and liabilities | -114 | -49 |
Net cash flows provided by operating activities | 340 | 467 |
Cash flows from investing activities | ' | ' |
Capital expenditures | -308 | -254 |
Change in restricted cash | 0 | -1 |
Other investing activities | 6 | 4 |
Net cash flows provided by (used in) investing activities | -302 | -514 |
Cash flows from financing activities | ' | ' |
Changes in short-term debt | 0 | 0 |
Redemption of preferred securities | 0 | -93 |
Issuance of long-term debt | 0 | 0 |
Dividends paid on common stock | -160 | -166 |
Dividends paid on preferred securities | 0 | -1 |
Other financing activities | -2 | 1 |
Net cash flows used in financing activities | -162 | -259 |
Increase (decrease) in cash and cash equivalents | -124 | -306 |
Cash and cash equivalents at beginning of period | 217 | 362 |
Cash and cash equivalents at end of period | 93 | 56 |
PECO Energy Co [Member] | EquipmentLeasedToOtherPartyMember | ' | ' |
Cash flows from investing activities | ' | ' |
Changes in intercompany money pool | 0 | -263 |
Baltimore Gas and Electric Company [Member] | ' | ' |
Cash flows from operating activities | ' | ' |
Net income | 106 | 106 |
Adjustments to reconcile net income to net cash flows provided by operating activities: | ' | ' |
Depreciation, amortization and accretion | 197 | 175 |
Deferred income taxes and amortization of investment tax credits | 47 | 98 |
Other non-cash operating activities | 89 | 61 |
Changes in assets and liabilities: | ' | ' |
Accounts receivable | 44 | -58 |
Receivables from and payables to affiliates, net | -12 | -11 |
Inventories | 0 | 4 |
Accounts payable, accrued expenses and other current liabilities | -74 | -28 |
Counterparty collateral (posted) received, net | 27 | 0 |
Income taxes | -14 | -33 |
Pension and non-pension postretirement benefit contributions | -8 | -11 |
Other assets and liabilities | 8 | 63 |
Net cash flows provided by operating activities | 410 | 366 |
Cash flows from investing activities | ' | ' |
Capital expenditures | -313 | -264 |
Change in restricted cash | -30 | 3 |
Other investing activities | 11 | 4 |
Net cash flows provided by (used in) investing activities | -332 | -257 |
Cash flows from financing activities | ' | ' |
Changes in short-term debt | -65 | 0 |
Issuance of long-term debt | 0 | 300 |
Retirement or repayment of long-term debt | -35 | -33 |
Contributions from parent | 0 | 0 |
Dividends paid on common stock | 0 | 0 |
Dividends paid on preferred securities | -6 | -6 |
Change in restricted cash for dividends | 0 | 0 |
Other financing activities | 12 | -2 |
Net cash flows used in financing activities | -94 | 259 |
Increase (decrease) in cash and cash equivalents | -16 | 368 |
Cash and cash equivalents at beginning of period | 31 | 89 |
Cash and cash equivalents at end of period | $15 | $457 |
Consolidated_Balance_Sheets_Un
Consolidated Balance Sheets (Unaudited) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | ||
In Millions, unless otherwise specified | |||||
Current assets | ' | ' | ' | ||
CashAndCashEquivalentsNonvariableInterestEntity | $1,362 | $1,609 | ' | ||
Cash and cash equivalents | 1,362 | 1,609 | 991 | ||
Restricted cash and investments | 207 | 167 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 2,973 | 2,981 | ' | ||
Other | 1,005 | 1,175 | ' | ||
Mark-to-market derivative assets | 629 | 727 | ' | ||
Unamortized energy contracts assets | 264 | 374 | ' | ||
Inventories, net | ' | ' | ' | ||
Fossil fuel | 409 | 276 | ' | ||
Materials and supplies | 1,041 | 829 | ' | ||
Deferred income taxes | 426 | 573 | ' | ||
Regulatory assets | 732 | 760 | ' | ||
Other | 775 | 666 | ' | ||
Total current assets | 9,823 | 10,137 | ' | ||
Property, plant and equipment, net | 51,747 | 47,330 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Regulatory assets | 5,545 | 5,910 | ' | ||
Nuclear decommissioning trust funds | 10,437 | 8,071 | ' | ||
Investments | 839 | 1,165 | ' | ||
Investments in affiliates | 22 | 22 | ' | ||
Investment in CENG | 0 | 1,925 | ' | ||
Goodwill | 2,674 | 2,625 | ' | ||
Mark-to-market derivative assets | 482 | 607 | ' | ||
Pledged assets for Zion Station decommissioning | 402 | 458 | 458 | ||
Unamortized energy contracts assets | 593 | 710 | ' | ||
Other | 1,092 | 964 | ' | ||
Deferred income taxes | 0 | ' | 0 | ||
Total deferred debits and other assets | 22,086 | 22,457 | ' | ||
Total assets | 83,656 | 79,924 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term borrowings | 621 | 341 | ' | ||
Long-term debt due within one year | 2,047 | 1,509 | ' | ||
Accounts payable | 2,633 | 2,484 | ' | ||
Accrued expenses | 1,382 | 1,633 | ' | ||
Payables to affiliates | 38 | 116 | ' | ||
Deferred income taxes | 17 | 40 | ' | ||
Regulatory liabilities | 368 | 327 | ' | ||
Mark-to-market derivative liabilities | 228 | 159 | ' | ||
Unamortized energy contract liabilities | 239 | 261 | ' | ||
Other | 994 | 858 | ' | ||
Total current liabilities | 8,567 | 7,728 | ' | ||
Long-term debt | 18,133 | 17,623 | ' | ||
Long-term debt of variable financing trusts | 648 | 648 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Deferred income taxes and unamortized investment tax credits | 13,192 | 12,905 | ' | ||
Asset retirement obligations | 7,054 | 5,194 | ' | ||
Pension obligations | 1,804 | 1,876 | ' | ||
Non-pension postretirement benefit obligations | 1,419 | 2,190 | ' | ||
Spent nuclear fuel obligation | 1,021 | 1,021 | ' | ||
Regulatory liabilities | 4,670 | 4,388 | ' | ||
Mark-to-market derivative liabilities | 262 | 300 | ' | ||
Unamortized energy contract liabilities | 260 | 266 | ' | ||
Payable for Zion Station decommissioning | 264 | 305 | ' | ||
Other | 2,133 | 2,540 | ' | ||
Total deferred credits and other liabilities | 32,079 | 30,985 | ' | ||
Total liabilities | 59,427 | 56,984 | ' | ||
Shareholders' equity | ' | ' | ' | ||
Common stock | 16,651 | 16,741 | ' | ||
Treasury stock, at cost (35 and 35 shares held at December 31, 2010 and December 31, 2009, respectively) | -2,327 | -2,327 | ' | ||
Retained earnings | 10,435 | 10,358 | ' | ||
Accumulated other comprehensive income (loss), net | -1,906 | [1] | -2,040 | [1] | ' |
Total shareholders' equity | 22,853 | 22,732 | ' | ||
BGE preference stock not subject to mandatory redemption | 193 | 193 | ' | ||
Noncontrolling interest | 1,183 | 15 | ' | ||
Total equity | 24,229 | 22,940 | ' | ||
Total liabilities and shareholders' equity | 83,656 | 79,924 | ' | ||
Member's equity | ' | ' | ' | ||
Accumulated other comprehensive income (loss), net | -1,906 | [1] | -2,040 | [1] | ' |
Consolidated Variable Interest Entities | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
Cash and cash equivalents | 126 | 62 | ' | ||
Restricted cash and cash equivalents | 75 | 80 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 296 | 260 | ' | ||
Other | 133 | ' | ' | ||
Inventories, net | ' | ' | ' | ||
Fossil fuel | 103 | 2 | ' | ||
Materials and supplies | 165 | ' | ' | ||
Other | 61 | 53 | ' | ||
Total current assets | 959 | 457 | ' | ||
Property, plant and equipment, net | 4,603 | 1,171 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Nuclear decommissioning trust funds | 2,030 | ' | ' | ||
Goodwill | 48 | ' | ' | ||
Other | 125 | 127 | ' | ||
Total deferred debits and other assets | 6,806 | ' | ' | ||
Total assets | 7,765 | 1,755 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term borrowings | 40 | ' | ' | ||
Long-term debt due within one year | 84 | ' | 85 | ||
Accounts payable | 243 | 170 | ' | ||
Accrued expenses | 89 | 26 | ' | ||
Mark-to-market derivative liabilities | 24 | 29 | ' | ||
Other | 165 | 5 | ' | ||
Total current liabilities | 657 | 320 | ' | ||
Long-term debt | 258 | 298 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Asset retirement obligations | 1,731 | ' | ' | ||
Pension obligations | 133 | ' | ' | ||
Non-pension postretirement benefit obligations | 136 | ' | ' | ||
Unamortized energy contract liabilities | 12 | 12 | 5 | ||
Other | 178 | 28 | ' | ||
Total deferred credits and other liabilities | 2,454 | 338 | ' | ||
Total liabilities | 3,111 | 658 | ' | ||
Removal Costs [Member] | ' | ' | ' | ||
Current liabilities | ' | ' | ' | ||
Regulatory liabilities | 107 | 99 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Regulatory liabilities | 1,449 | 1,423 | ' | ||
Exelon Generation Co L L C [Member] | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
CashAndCashEquivalentsNonvariableInterestEntity | 305 | 1,258 | ' | ||
Cash and cash equivalents | 305 | 1,258 | 222 | ||
Cash and cash equivalents of variable interest entities | 0 | 0 | ' | ||
Restricted cash and cash equivalents | 88 | 71 | ' | ||
Restricted cash and investments of variable interest entity | 0 | 0 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 1,733 | 1,689 | ' | ||
Other | 441 | 353 | ' | ||
Accounts receivable of variable interest entities | 0 | 0 | ' | ||
Mark-to-market derivative assets | 629 | 727 | ' | ||
Mark-to-market derivative assets with affiliates | 0 | 0 | ' | ||
Receivables from affiliates | 67 | 108 | ' | ||
Unamortized energy contracts assets | 264 | 374 | ' | ||
Inventories, net | ' | ' | ' | ||
Fossil fuel | 328 | 164 | ' | ||
Materials and supplies | 872 | 671 | ' | ||
Deferred income taxes | 476 | 475 | ' | ||
Receivable from Exelon intercompany money pool | 0 | 44 | ' | ||
Other | 524 | 505 | ' | ||
Total current assets | 5,727 | 6,439 | ' | ||
Property, plant and equipment, net | 23,743 | 20,111 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Nuclear decommissioning trust funds | 10,437 | 8,071 | ' | ||
Investments | 432 | 400 | ' | ||
Investments in affiliates | 0 | 0 | ' | ||
Investment in CENG | 0 | 1,925 | ' | ||
Goodwill | 49 | 0 | ' | ||
Mark-to-market derivative assets | 464 | 600 | ' | ||
Mark-to-market derivative assets with affiliates | 0 | 0 | ' | ||
Prepaid pension asset | 1,888 | 1,873 | ' | ||
Pledged assets for Zion Station decommissioning | 402 | 458 | 458 | ||
Unamortized energy contracts assets | 593 | 710 | ' | ||
Other | 687 | 645 | ' | ||
Deferred income taxes | 0 | 0 | ' | ||
Total deferred debits and other assets | 14,952 | 14,682 | ' | ||
Total assets | 44,422 | 41,232 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term borrowings | 53 | 22 | ' | ||
Long-term debt due within one year | 52 | 561 | ' | ||
Long-term debt to PECO Energy Transition Trust due within one year | 563 | ' | ' | ||
Long-term debt of variable interest entities due within one year | 0 | 0 | ' | ||
Accounts payable | 1,508 | 1,322 | ' | ||
Accounts payable of variable interest entities | 0 | 0 | ' | ||
Accrued expenses | 819 | 976 | ' | ||
Payables to affiliates | 108 | 181 | ' | ||
Borrowings from Exelon intercompany money pool | 190 | ' | ' | ||
Deferred income taxes | 1 | 25 | ' | ||
Mark-to-market derivative liabilities | 215 | 142 | ' | ||
Unamortized energy contract liabilities | 233 | 249 | ' | ||
Other | 473 | 389 | ' | ||
Total current liabilities | 4,215 | 3,867 | ' | ||
Long-term debt | 5,944 | 5,645 | ' | ||
Long-term debt to affiliate | 948 | 1,523 | ' | ||
Long-term debt of variable interest entity | 0 | 0 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Deferred income taxes and unamortized investment tax credits | 6,334 | 6,295 | ' | ||
Asset retirement obligations | 6,907 | 5,047 | ' | ||
Pension obligations | 125 | ' | ' | ||
Non-pension postretirement benefit obligations | 941 | 850 | ' | ||
Spent nuclear fuel obligation | 1,021 | 1,021 | ' | ||
Payables to affiliates | 2,917 | 2,740 | ' | ||
Mark-to-market derivative liabilities | 135 | 120 | ' | ||
Unamortized energy contract liabilities | 260 | ' | 266 | ||
Payable for Zion Station decommissioning | 264 | ' | 305 | ||
Other | 761 | 811 | ' | ||
Total deferred credits and other liabilities | 19,665 | 17,455 | ' | ||
Total liabilities | 30,772 | 28,490 | ' | ||
Commitments and contingencies | 0 | 0 | ' | ||
Shareholders' equity | ' | ' | ' | ||
Accumulated other comprehensive income (loss), net | 37 | [1] | 214 | [1] | ' |
Noncontrolling interest | 1,185 | 17 | ' | ||
Member's equity | ' | ' | ' | ||
Membership interest | 8,895 | 8,898 | ' | ||
Undistributed earnings | 3,533 | 3,613 | ' | ||
Accumulated other comprehensive income (loss), net | 37 | [1] | 214 | [1] | ' |
Total member's equity | 12,465 | 12,725 | ' | ||
Total equity | 13,650 | 12,742 | ' | ||
Total liabilities and equity | 44,422 | 41,232 | ' | ||
Exelon Generation Co L L C [Member] | Consolidated Variable Interest Entities | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
Cash and cash equivalents | 126 | 62 | ' | ||
Restricted cash and cash equivalents | 47 | 52 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 296 | 260 | ' | ||
Other | 133 | ' | ' | ||
Inventories, net | ' | ' | ' | ||
Fossil fuel | 103 | 2 | ' | ||
Materials and supplies | 165 | ' | ' | ||
Other | 54 | 42 | ' | ||
Total current assets | 924 | 418 | ' | ||
Property, plant and equipment, net | 4,603 | 1,171 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Nuclear decommissioning trust funds | 2,030 | ' | ' | ||
Goodwill | 48 | ' | ' | ||
Other | 106 | 106 | ' | ||
Total deferred debits and other assets | 6,787 | 1,277 | ' | ||
Total assets | 7,711 | 1,695 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term borrowings | 40 | 5 | ' | ||
Long-term debt due within one year | 5 | ' | ' | ||
Accounts payable | 243 | 170 | ' | ||
Accrued expenses | 86 | 22 | ' | ||
Mark-to-market derivative liabilities | 24 | ' | ' | ||
Unamortized energy contract liabilities | 12 | 29 | ' | ||
Other | 165 | 5 | ' | ||
Total current liabilities | 575 | 236 | ' | ||
Long-term debt | 84 | 86 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Asset retirement obligations | 1,731 | ' | ' | ||
Pension obligations | 133 | ' | ' | ||
Non-pension postretirement benefit obligations | 136 | ' | ' | ||
Unamortized energy contract liabilities | 18 | 12 | 5 | ||
Other | 178 | 28 | ' | ||
Total deferred credits and other liabilities | 2,280 | 126 | ' | ||
Total liabilities | 2,855 | 362 | ' | ||
Commonwealth Edison Co [Member] | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
CashAndCashEquivalentsNonvariableInterestEntity | 38 | 36 | ' | ||
Cash and cash equivalents | 38 | 36 | 93 | ||
Restricted cash and cash equivalents | 4 | 2 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 516 | 451 | ' | ||
Other | 428 | 584 | ' | ||
Inventories, net | ' | ' | ' | ||
Inventories, net | 112 | 109 | ' | ||
Deferred income taxes | 0 | 0 | ' | ||
Receivable from Exelon intercompany money pool | 172 | ' | ' | ||
Counterparty collateral deposited | 0 | 0 | ' | ||
Regulatory assets | 304 | 329 | ' | ||
Other | 32 | 29 | ' | ||
Total current assets | 1,434 | 1,540 | ' | ||
Property, plant and equipment, net | 15,121 | 14,666 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Regulatory assets | 850 | 933 | ' | ||
Investments | 1 | 5 | ' | ||
Investments in affiliates | 6 | 6 | ' | ||
Goodwill | 2,625 | 2,625 | ' | ||
Receivable from affiliate | 2,606 | 2,469 | ' | ||
Prepaid pension asset | 1,626 | 1,583 | ' | ||
Other | 275 | 291 | ' | ||
Total deferred debits and other assets | 7,989 | 7,912 | ' | ||
Total assets | 24,544 | 24,118 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term borrowings | 498 | 184 | ' | ||
Long-term debt due within one year | 260 | 617 | ' | ||
Accounts payable | 505 | 449 | ' | ||
Accrued expenses | 274 | 307 | ' | ||
Payables to affiliates | 37 | 83 | ' | ||
Deferred income taxes | 117 | 16 | ' | ||
Customer deposits | 130 | 133 | ' | ||
Regulatory liabilities | 164 | 170 | ' | ||
Mark-to-market derivative liabilities | 13 | 17 | ' | ||
Mark-to-market derivative liabilities with affiliate | 0 | 0 | ' | ||
Other | 82 | 72 | ' | ||
Total current liabilities | 2,080 | 2,048 | ' | ||
Long-term debt | 5,448 | 5,058 | ' | ||
Long-term debt of variable financing trusts | 206 | 206 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Deferred income taxes and unamortized investment tax credits | 4,080 | 4,116 | ' | ||
Asset retirement obligations | 100 | 99 | ' | ||
Non-pension postretirement benefit obligations | 284 | 381 | ' | ||
Regulatory liabilities | 3,686 | 3,512 | ' | ||
Mark-to-market derivative liabilities | 121 | 176 | ' | ||
Other | 841 | 994 | ' | ||
Total deferred credits and other liabilities | 9,112 | 9,278 | ' | ||
Total liabilities | 16,846 | 16,590 | ' | ||
Commitments and contingencies | 0 | 0 | ' | ||
Shareholders' equity | ' | ' | ' | ||
Common stock | 1,588 | 1,588 | ' | ||
Other paid-in capital | 5,304 | 5,190 | ' | ||
Retained earnings | 806 | 750 | ' | ||
Accumulated other comprehensive income (loss), net | 0 | 0 | ' | ||
Total shareholders' equity | 7,698 | 7,528 | ' | ||
Total liabilities and shareholders' equity | 24,544 | 24,118 | ' | ||
Member's equity | ' | ' | ' | ||
Accumulated other comprehensive income (loss), net | 0 | 0 | ' | ||
Commonwealth Edison Co [Member] | Removal Costs [Member] | ' | ' | ' | ||
Current liabilities | ' | ' | ' | ||
Regulatory liabilities | 83 | 78 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Regulatory liabilities | 1,248 | 1,219 | ' | ||
PECO Energy Co [Member] | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
CashAndCashEquivalentsNonvariableInterestEntity | 93 | 217 | ' | ||
Cash and cash equivalents | 93 | 217 | 56 | ||
Restricted cash and cash equivalents | 2 | 2 | ' | ||
Restricted cash and investments of variable interest entity | 0 | 0 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 304 | 360 | ' | ||
Other | 107 | 107 | ' | ||
Inventories, net | ' | ' | ' | ||
Fossil fuel | 34 | 60 | ' | ||
Materials and supplies | 25 | 21 | ' | ||
Deferred income taxes | 80 | 83 | ' | ||
Receivable from Exelon intercompany money pool | 0 | 0 | ' | ||
Prepaid utility taxes | 78 | 3 | ' | ||
Regulatory assets | 29 | 17 | ' | ||
Other | 51 | 36 | ' | ||
Total current assets | 803 | 906 | ' | ||
Property, plant and equipment, net | 6,545 | 6,384 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Regulatory assets | 1,495 | 1,448 | ' | ||
Investments | 23 | 23 | ' | ||
Investments in affiliates | 8 | 8 | ' | ||
Receivable from affiliate | 490 | 447 | ' | ||
Prepaid pension asset | 359 | 363 | ' | ||
Other | 38 | 38 | ' | ||
Total deferred debits and other assets | 2,413 | 2,327 | ' | ||
Total assets | 9,761 | 9,617 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term notes payable - accounts receivable agreement | ' | 0 | ' | ||
Long-term debt due within one year | 250 | 250 | ' | ||
Accounts payable | 298 | 285 | ' | ||
Accrued expenses | 167 | 106 | ' | ||
Payables to affiliates | 37 | 58 | ' | ||
Customer deposits | 50 | 49 | ' | ||
Regulatory liabilities | 88 | 106 | ' | ||
Other | 32 | 37 | ' | ||
Total current liabilities | 922 | 891 | ' | ||
Long-term debt | 1,947 | 1,947 | ' | ||
Long-term debt of variable financing trusts | 184 | 184 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Deferred income taxes and unamortized investment tax credits | 2,545 | 2,487 | ' | ||
Asset retirement obligations | 30 | 29 | ' | ||
Non-pension postretirement benefit obligations | 292 | 286 | ' | ||
Regulatory liabilities | 671 | 629 | ' | ||
Other | 92 | 99 | ' | ||
Total deferred credits and other liabilities | 3,630 | 3,530 | ' | ||
Total liabilities | 6,683 | 6,552 | ' | ||
Preferred securities | ' | 0 | ' | ||
Shareholders' equity | ' | ' | ' | ||
Common stock | 2,415 | 2,415 | ' | ||
Retained earnings | 662 | 649 | ' | ||
Accumulated other comprehensive income (loss), net | 1 | [1] | 1 | [1] | ' |
Total shareholders' equity | 3,078 | 3,065 | ' | ||
Total liabilities and shareholders' equity | 9,761 | 9,617 | ' | ||
Member's equity | ' | ' | ' | ||
Accumulated other comprehensive income (loss), net | 1 | [1] | 1 | [1] | ' |
PECO Energy Co [Member] | Removal Costs [Member] | ' | ' | ' | ||
Current liabilities | ' | ' | ' | ||
Regulatory liabilities | ' | 0 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Regulatory liabilities | ' | 0 | ' | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
CashAndCashEquivalentsNonvariableInterestEntity | 15 | 31 | ' | ||
Cash and cash equivalents | 15 | 31 | 457 | ||
Restricted cash and cash equivalents | 58 | 28 | ' | ||
Accounts receivable, net | ' | ' | ' | ||
Customer | 419 | 480 | ' | ||
Other | 102 | 114 | ' | ||
Income taxes receivable | 44 | 30 | ' | ||
Mark-to-market derivative assets | 0 | 0 | ' | ||
Inventories, net | ' | ' | ' | ||
Fossil fuel | 48 | 53 | ' | ||
Materials and supplies | 33 | 28 | ' | ||
Deferred income taxes | 11 | 2 | ' | ||
Prepaid utility taxes | 0 | 57 | ' | ||
Regulatory assets | 178 | 181 | ' | ||
Other | 8 | 7 | ' | ||
Total current assets | 916 | 1,011 | ' | ||
Property, plant and equipment, net | 6,030 | 5,864 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Regulatory assets | 499 | 524 | ' | ||
Investments | 4 | 5 | ' | ||
Investments in affiliates | 8 | 8 | ' | ||
Prepaid pension asset | 396 | 423 | ' | ||
Other | 24 | 26 | ' | ||
Total deferred debits and other assets | 931 | 986 | ' | ||
Total assets | 7,877 | 7,861 | ' | ||
Current liabilities | ' | ' | ' | ||
Short-term borrowings | 70 | 135 | ' | ||
Long-term debt due within one year | 72 | 70 | ' | ||
Accounts payable | 205 | 270 | ' | ||
Accrued expenses | 95 | 111 | ' | ||
Payables to affiliates | 55 | 55 | ' | ||
Deferred income taxes | 39 | 27 | ' | ||
Customer deposits | 87 | 76 | ' | ||
Regulatory liabilities | 63 | 48 | ' | ||
Other | 61 | 35 | ' | ||
Total current liabilities | 747 | 827 | ' | ||
Long-term debt | 1,904 | 1,941 | ' | ||
Long-term debt of variable financing trusts | 258 | 258 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Deferred income taxes and unamortized investment tax credits | 1,814 | 1,773 | ' | ||
Asset retirement obligations | 17 | 19 | ' | ||
Non-pension postretirement benefit obligations | 215 | 217 | ' | ||
Regulatory liabilities | 202 | 204 | ' | ||
Other | 65 | 67 | ' | ||
Total deferred credits and other liabilities | 2,313 | 2,280 | ' | ||
Total liabilities | 5,222 | 5,306 | ' | ||
Commitments and contingencies | 0 | 0 | ' | ||
Shareholders' equity | ' | ' | ' | ||
Common stock | 1,360 | 1,360 | ' | ||
Retained earnings | 1,105 | 1,005 | ' | ||
Total shareholders' equity | 2,465 | 2,365 | ' | ||
BGE preference stock not subject to mandatory redemption | 190 | 190 | ' | ||
Total equity | 2,655 | 2,555 | ' | ||
Total liabilities and shareholders' equity | 7,877 | 7,861 | ' | ||
Baltimore Gas and Electric Company [Member] | Consolidated Variable Interest Entities | ' | ' | ' | ||
Current assets | ' | ' | ' | ||
Restricted cash and cash equivalents | 28 | 28 | ' | ||
Inventories, net | ' | ' | ' | ||
Total current assets | 28 | 28 | ' | ||
Deferred debits and other assets | ' | ' | ' | ||
Other | 3 | 3 | ' | ||
Total deferred debits and other assets | 3 | 3 | ' | ||
Total assets | 31 | 31 | ' | ||
Current liabilities | ' | ' | ' | ||
Long-term debt due within one year | 72 | 70 | ' | ||
Accrued expenses | 4 | 4 | ' | ||
Total current liabilities | 76 | 74 | ' | ||
Long-term debt | 158 | 195 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Total deferred credits and other liabilities | 158 | 195 | ' | ||
Total liabilities | 234 | 269 | ' | ||
Baltimore Gas and Electric Company [Member] | Removal Costs [Member] | ' | ' | ' | ||
Current liabilities | ' | ' | ' | ||
Regulatory liabilities | 24 | 21 | ' | ||
Deferred credits and other liabilities | ' | ' | ' | ||
Regulatory liabilities | $201 | $204 | ' | ||
[1] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. |
Consolidated_Balance_Sheets_Un1
Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Millions, except Share data, unless otherwise specified | ||
Accounts Receivable [Abstract] | ' | ' |
Gross accounts receivable pledged as collateral | $0 | $0 |
Shareholders' equity | ' | ' |
Common stock, shares authorized | 2,000,000,000 | 2,000,000,000 |
Common stock, shares outstanding | 893,940,600 | 857,000,000 |
Treasury Stock, Shares held | 35,000,000 | 35,000,000 |
PECO Energy Co [Member] | ' | ' |
Accounts Receivable [Abstract] | ' | ' |
Gross accounts receivable pledged as collateral | $0 | $0 |
Consolidated_Statement_of_Chan
Consolidated Statement of Changes in Shareholders Equity (Unaudited) (USD $) | Total | Common Stock [Member] | Treasury Stock | Retained Earnings | Retained Earnings | Accumulated Other Comprehensive (Loss) Income, Net | Noncontrolling Interest | Preference Stock Not Subject To Mandatory Redemption [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] |
In Millions, except Share data in Thousands | Cumulative Preferred Stock [Member] | Undistributed Earnings [Member] | Membership Interest [Member] | Accumulated Other Comprehensive (Loss) Income, Net | Noncontrolling Interest | Common Stock [Member] | Retained Earnings | Accumulated Other Comprehensive (Loss) Income, Net | Common Stock [Member] | Other Paid-In Capital | Retained Deficit Unappropriated | Retained Earnings Appropriated | Common Stock [Member] | Nonredeemable Preferred Stock [Member] | Retained Earnings | |||||||||||
Beginning Balance at Dec. 31, 2013 | $22,732 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $3,065 | $2,415 | $649 | $1 | $7,528 | $1,588 | $5,190 | ($1,639) | $2,389 | $2,365 | $1,360 | $190 | $1,005 |
Beginning Balance at Dec. 31, 2013 | 22,940 | 16,741 | -2,327 | 10,358 | ' | -2,040 | 15 | 193 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,555 | ' | ' | ' |
Beginning Balance at Dec. 31, 2013 | ' | 892,034 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Beginning Balance at Dec. 31, 2013 | ' | ' | ' | ' | ' | ' | ' | ' | 12,742 | 3,613 | 8,898 | 214 | 17 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net income | ' | ' | ' | 612 | ' | ' | ' | 6 | 188 | 155 | ' | ' | 33 | 173 | ' | 173 | ' | 209 | ' | ' | 209 | ' | 106 | ' | ' | 106 |
Net income on common stock | 612 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 173 | ' | ' | ' | ' | ' | ' | ' | ' | 100 | ' | ' | ' |
Long-term incentive plan activity | ' | 1,408 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Employee stock purchase plan issuances | ' | 499 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Appropriation of retained earnings for future dividends | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -209 | 209 | ' | ' | ' | ' |
Long-term incentive plan activity | 32 | 32 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Employee stock purchase plan issuances | 14 | 14 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Common stock dividends | -535 | ' | ' | -535 | ' | ' | ' | ' | ' | ' | ' | ' | ' | -160 | ' | -160 | ' | -153 | ' | ' | ' | -153 | ' | ' | ' | ' |
Contribution from parent | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | 0 | ' | 0 | ' | ' | ' | ' | 112 | ' | 112 | ' | ' | ' | ' | ' | ' |
Distribution to members | ' | ' | ' | ' | ' | ' | ' | ' | -235 | -235 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Allocation of tax benefit from members | ' | ' | ' | ' | ' | ' | ' | ' | -3 | ' | -3 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Preferred stock redemption premium | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Allocation of tax benefit from parent | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2 | ' | 2 | ' | ' | ' | ' | ' | ' |
Consolidated VIE dividend to non-controlling interest | -415 | ' | ' | ' | ' | ' | -415 | ' | -415 | ' | ' | ' | -415 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Preferred security dividends | 6 | ' | ' | ' | ' | ' | ' | 0 | ' | ' | ' | ' | ' | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | -6 | ' | -6 | ' |
Noncontrolling interest acquired | 1,548 | ' | ' | ' | ' | ' | 1,548 | ' | 1,548 | ' | ' | ' | 1,548 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reversal of CENG Equity Method AOCI | -116 | ' | ' | ' | ' | -116 | ' | ' | -116 | ' | ' | -116 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Other comprehensive income (loss), net of tax | ' | ' | ' | ' | ' | 250 | ' | ' | ' | ' | ' | -61 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sale of noncontrolling interest | ' | ' | ' | ' | ' | ' | ' | ' | 2 | ' | 0 | ' | 2 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
ImpairmentOfLongLivedAssetsToBeDisposedOf | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | ' | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Deconsolidation of VIE | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reduction of Equity for present value of contract payments | -131 | -131 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Ending Balance at Jun. 30, 2014 | 22,853 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,078 | 2,415 | 662 | 1 | 7,698 | 1,588 | 5,304 | -1,639 | 2,445 | 2,465 | 1,360 | 190 | 1,105 |
Ending Balance at Jun. 30, 2014 | 24,229 | 16,651 | -2,327 | 10,435 | ' | -1,906 | 1,183 | 193 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,655 | ' | ' | ' |
Ending Balance at Jun. 30, 2014 | ' | 893,941 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Ending Balance at Jun. 30, 2014 | ' | ' | ' | ' | ' | ' | ' | ' | 13,650 | 3,533 | 8,895 | 37 | 1,185 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Beginning Balance at Mar. 31, 2014 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net income | 557 | ' | ' | ' | ' | ' | ' | ' | 372 | ' | ' | ' | ' | 84 | ' | ' | ' | 111 | ' | ' | ' | ' | 19 | ' | ' | ' |
Net income on common stock | 522 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 84 | ' | ' | ' | ' | ' | ' | ' | ' | 16 | ' | ' | ' |
Preferred stock redemption premium | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reversal of CENG Equity Method AOCI | -116 | ' | ' | ' | ' | ' | ' | ' | -116 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Other comprehensive income (loss), net of tax | 131 | ' | ' | ' | ' | ' | ' | ' | -155 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reduction of Equity for present value of contract payments | -131 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Ending Balance at Jun. 30, 2014 | 22,853 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,078 | 2,415 | ' | 1 | 7,698 | 1,588 | ' | ' | ' | 2,465 | 1,360 | ' | ' |
Ending Balance at Jun. 30, 2014 | 24,229 | ' | -2,327 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,655 | ' | ' | ' |
Ending Balance at Jun. 30, 2014 | ' | ' | ' | ' | ' | ' | ' | ' | $13,650 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Consolidated_Statement_of_Chan1
Consolidated Statement of Changes in Shareholders Equity (Unaudited) (Parenthetical) (USD $) | 3 Months Ended | 6 Months Ended | ||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 |
Other comprehensive income, income taxes | ($79) | $1 | ($82) | ($67) |
Accumulated Other Comprehensive (Loss) Income, Net | ' | ' | ' | ' |
Other comprehensive income, income taxes | ' | ' | 159 | ' |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' |
Other comprehensive income, income taxes | 102 | 84 | 112 | 152 |
Exelon Generation Co L L C [Member] | Accumulated Other Comprehensive (Loss) Income, Net | ' | ' | ' | ' |
Other comprehensive income, income taxes | ' | ' | $35 | ' |
Basis_of_Presenation_Exelon_Ge
Basis of Presenation (Exelon, Generation, Come, PECO and BGE) | 6 Months Ended |
Jun. 30, 2014 | |
Significant Accounting Policies [Line Items] | ' |
Basis of Presentation (Exelon, Generation, ComEd, PECO and BGE) | ' |
1. Basis of Presentation (Exelon, Generation, ComEd, PECO and BGE) | |
Exelon is a utility services holding company engaged through its principal subsidiaries in the energy generation and energy distribution businesses. On April 1, 2014, Generation assumed the operating licenses and corresponding operational control of CENG's nuclear fleet. As a result, Exelon and Generation consolidated CENG's financial position and results of operations into their businesses. Prior to April 1, 2014, Exelon and Generation accounted for CENG as an equity method investment. Refer to Note 6 – Investment in CENG for further information regarding the integration transaction. | |
The energy generation business includes: | |
Generation: Physical delivery and marketing of owned and contracted electric generation capacity and provision of renewable and other energy-related products and services, and natural gas exploration and production activities. Generation has six reportable segments consisting of the Mid-Atlantic, Midwest, New England, New York, ERCOT and Other regions. | |
The energy delivery businesses include: | |
ComEd: Purchase and regulated retail sale of electricity and the provision of distribution and transmission services in northern Illinois, including the City of Chicago. | |
PECO: Purchase and regulated retail sale of electricity and the provision of distribution and transmission services in southeastern Pennsylvania, including the City of Philadelphia, and the purchase and regulated retail sale of natural gas and the provision of distribution services in the Pennsylvania counties surrounding the City of Philadelphia. | |
BGE: Purchase and regulated retail sale of electricity and the provision of distribution and transmission services in central Maryland, including the City of Baltimore, and the purchase and regulated retail sale of natural gas and the provision of distribution services in central Maryland, including the City of Baltimore. | |
Each of the Registrant's Consolidated Financial Statements includes the accounts of its subsidiaries. All intercompany transactions have been eliminated. | |
Certain prior year amounts in the Exelon, Generation and BGE Consolidated Statement of Operations have been reclassified between line items for comparative purposes and correction of prior period classification errors identified in 2013. The reclassifications did not affect any of the Registrants' net income or cash flows from operating activities. Exelon corrected the presentation of Purchased power and fuel from affiliates of $287 million and $605 million on its Statements of Operations and Comprehensive Income for the three and six months ended June 30, 2013, respectively. Generation corrected the presentation of Purchased power and fuel from affiliates of $290 million and $611 million on its Statements of Operations and Comprehensive Income for the three and six months ended June 30, 2013, respectively. Generation also corrected the presentation of Interest expense to affiliates, net of $16 million and $34 million on its Statement of Operations and Comprehensive Income for the three and six months ended June 30, 2013, respectively. BGE corrected its presentation of Interest expense to affiliates, net of $4 million and $8 million on the Statement of Operations and Comprehensive Income for the three and six months ended June 30, 2013, respectively. | |
The accompanying consolidated financial statements as of June 30, 2014 and 2013 and for the six months then ended are unaudited but, in the opinion of the management of each Registrant include all adjustments that are considered necessary for a fair statement of the Registrants' respective financial statements in accordance with GAAP. All adjustments are of a normal, recurring nature, except as otherwise disclosed. The December 31, 2013 Consolidated Balance Sheets were obtained from audited financial statements. Financial results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the fiscal year ending December 31, 2014. These Combined Notes to Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the SEC for Quarterly Reports on Form 10-Q. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These notes should be read in conjunction with the Notes to Combined Consolidated Financial Statements of all Registrants included in ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA of their respective 2013 Form 10-K Reports. |
New_Accounting_Pronouncements_
New Accounting Pronouncements (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended |
Jun. 30, 2014 | |
New Accounting Pronouncements And Changes In Accounting Principles [Line Items] | ' |
Schedule Of New Accounting Pronouncements And Changes In Accounting Principles (Exelon, Generation, ComEd, PECO and BGE) | ' |
2. New Accounting Pronouncements (Exelon, Generation, ComEd, PECO and BGE) | |
The following recently issued accounting standards were adopted by or are effective for the Registrants during 2014. | |
Presentation of Unrecognized Tax Benefits When Net Operating Loss Carryforwards, Similar Tax Losses or Tax Credit Carryforwards Exist | |
In July 2013, the FASB issued authoritative guidance requiring entities to present unrecognized tax benefits as a reduction to deferred tax assets for losses or other tax carryforwards that would be available to offset the uncertain tax positions at the reporting date. This guidance was effective for the Registrants for periods beginning after December 15, 2013 and was required to be applied prospectively. The adoption of this standard had an immaterial effect on the presentation of deferred tax assets at Exelon and Generation and no effect on ComEd, PECO and BGE. There was no effect on the Registrants' results of operations or cash flows. | |
Variable_Interest_Entities_Exe
Variable Interest Entities (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||
Variable Interest Entities Disclosure [Line Items] | ' | ||||||||||||||||||
Variable Interest Entities (Exelon, Generation, ComEd, PECO and BGE) | ' | ||||||||||||||||||
3. Variable Interest Entities (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||||
Under the applicable authoritative guidance, a VIE is a legal entity that possesses any of the following characteristics: an insufficient amount of equity at risk to finance its activities, equity owners who do not have the power to direct the significant activities of the entity (or have voting rights that are disproportionate to their ownership interest), or equity owners who do not have the obligation to absorb expected losses or the right to receive the expected residual returns of the entity. Companies are required to consolidate a VIE if they are its primary beneficiary, which is the enterprise that has the power to direct the activities that most significantly affect the entity's economic performance. | |||||||||||||||||||
At June 30, 2014 and December 31, 2013, Exelon, Generation, and BGE collectively consolidated six and four VIEs or VIE groups, respectively, for which the applicable Registrant was the primary beneficiary (see detail by Registrant below). As of June 30, 2014 and December 31, 2013, the Registrants had significant interests in nine and eight other VIEs, respectively, for which the Registrants do not have the power to direct the entities' activities and, accordingly, were not the primary beneficiary. | |||||||||||||||||||
Through March 31, 2014, CENG was operated as a joint venture with EDFI and was governed by a board of ten directors, five of which were appointed by Generation and five by EDF. CENG was designed to operate under joint and equal control of Generation and EDFI; therefore, CENG was not subject to VIE guidance. Accordingly, Generation's 50.01% interest in CENG was accounted for as an equity method investment. On April 1, 2014, Generation, CENG, and subsidiaries of CENG executed the NOSA pursuant to which Generation now conducts all activities associated with the operations of the CENG fleet and provides corporate and administrative services to CENG for the remaining life of the CENG nuclear plants as if they were a part of the Generation nuclear fleet, subject to the CENG member rights of EDFI. As a result of executing the NOSA, CENG now qualifies as a VIE due to the disproportionate relationship between Generation's 50.01% equity ownership interest and its role in conducting the operational activities of CENG conveyed through the NOSA. Further, since Generation is conducting the operational activities of CENG, Generation qualifies as the primary beneficiary of CENG and, therefore, is required to consolidate the financial position and results of operations of CENG. On April 1, 2014, Exelon and Generation derecognized Generation's equity method investment in CENG and reflected all assets, liabilities, and the EDFI non-controlling interest in CENG at fair value on the consolidated balance sheets of Exelon and Generation, resulting in the recognition of a $261 million gain in their respective consolidated statements of operations and comprehensive income for the three and six months ended June 30, 2014. For additional information on this transaction refer to Note 6 – Investment in Constellation Energy Nuclear Group, LLC. | |||||||||||||||||||
In March 2014, Generation began consolidating retail power VIEs for which Generation is the primary beneficiary as a result of energy supply contracts that give Generation the power to direct the activities that most significantly affect the economic performance of the entities. Generation does not have an equity ownership interest in these entities. These entities are included in Generation's consolidated financial statements and the consolidation of the VIEs did not have a material impact on Generation's financial results or financial condition. | |||||||||||||||||||
Consolidated Variable Interest Entities | |||||||||||||||||||
Exelon, Generation and BGE's consolidated VIEs consist of: | |||||||||||||||||||
BondCo, a special purpose bankruptcy remote limited liability company formed by BGE to acquire, hold, and issue and service bonds secured by rate stabilization property, | |||||||||||||||||||
a retail gas group formed by Generation to enter into a collateralized gas supply agreement with a third-party gas supplier, | |||||||||||||||||||
a group of solar project limited liability companies formed by Generation to build, own and operate solar power facilities, | |||||||||||||||||||
several wind project companies designed by Generation to develop, construct and operate wind generation facilities, | |||||||||||||||||||
certain retail power companies for which Generation is the sole supplier of energy, and | |||||||||||||||||||
Constellation Energy Nuclear Group, Inc. (CENG). | |||||||||||||||||||
As of June 30, 2014 and December 31, 2013, ComEd and PECO do not have any material consolidated VIEs. | |||||||||||||||||||
As of June 30, 2014 and December 31, 2013, Exelon, Generation, and BGE provided the following support to the consolidated VIEs: | |||||||||||||||||||
In the case of BondCo, BGE is required to remit all payments it receives from all residential customers through non-bypassable, rate stabilization charges to BondCo. During the three and six months ended June 30, 2014, BGE remitted $21 million and $42 million, respectively, to BondCo. During the three and six months ended June 30, 2013, BGE remitted $17 million and $39 million, respectively, to BondCo. | |||||||||||||||||||
Generation provides operating and capital funding to the solar entities for ongoing construction, operations and maintenance of the solar power facilities and provides limited recourse related to the Antelope Valley project. | |||||||||||||||||||
Generation and Exelon, where indicated, provide the following support to CENG (see Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K and Note 6 – Investment in Constellation Energy Nuclear Group, LLC for additional information regarding Generation and Exelon's transactions with CENG). | |||||||||||||||||||
under the Nuclear Operating Services Agreement (NOSA), Generation conducts all activities related to the operation of the CENG nuclear generation fleet owned by CENG subsidiaries (the CENG fleet) and provides corporate and administrative services for the remaining life of the CENG nuclear plants as if they were a part of the Generation nuclear fleet, subject to the CENG member rights of EDF Inc. (EDFI) (a subsidiary of EDF), | |||||||||||||||||||
under the Power Services Agency Agreement (PSAA), Generation provides scheduling, asset management, and billing services to CENG fleet for the remaining life of the CENG nuclear plants, | |||||||||||||||||||
under power purchase agreements with CENG, Generation will purchase 85% of the available output generated by CENG nuclear plants for the remainder of 2014 and 50.01% from 2015 through the end of the life of each respective plant under power purchase agreements with CENG, | |||||||||||||||||||
Generation provided a $400 million loan to CENG, | |||||||||||||||||||
Generation executed an Indemnity Agreement pursuant to which Generation agreed to indemnify EDF and its affiliates against third-party claims that may arise from any future nuclear incident (as defined in the Price Anderson Act) in connection with the CENG nuclear plants or their operations. Exelon guarantees Generation's obligations under this indemnity. (See Note 18 – Commitments and Contingencies for more details), | |||||||||||||||||||
in connection with CENG's severance obligations, Generation has agreed to reimburse CENG for a total of approximately $6 million of the severance benefits paid or to be paid in 2013 through 2016. As of June 30, 2014, the remaining obligation is approximately $4 million (see Integration-Related Severance under Note 14 – Severance for additional details), | |||||||||||||||||||
Generation and EDFI share in the $637 million of contingent payment obligations for the payment of contingent retrospective premium adjustments for the nuclear liability insurance (See Note 18 Commitments and Contingencies for more details), | |||||||||||||||||||
Generation provides a $7 million guarantee associated with hazardous waste management facilities and underground storage tanks. In addition, EDFI executed a reimbursement agreement that provides reimbursement to Exelon for 49.99% of any amounts paid by Generation under this guarantee, | |||||||||||||||||||
Generation and EDFI are the members-insured with Nuclear Electric Insurance Limited and have assigned the loss benefits under the insurance and the NEIL premium costs to CENG and guarantee the obligations of CENG under these insurance programs in proportion to their respective member interests (See Note 18 Commitments and Contingencies for more details), and | |||||||||||||||||||
Exelon has executed an agreement to provide up to $245 million to support the operations of CENG as well as a $165 million guarantee of CENG's cash pooling agreement with its subsidiaries. | |||||||||||||||||||
Generation provides approximately $4 million in credit support for the retail power companies, and | |||||||||||||||||||
Generation provides a $75 million parental guarantee to the third-party gas supplier in support of its retail gas group. | |||||||||||||||||||
For each of the consolidated VIEs, except as otherwise noted: | |||||||||||||||||||
The assets of the VIEs are restricted and can only be used to settle obligations of the respective VIE; | |||||||||||||||||||
Exelon, Generation and BGE did not provide any additional material financial support to the VIEs; | |||||||||||||||||||
Exelon, Generation and BGE did not have any material contractual commitments or obligations to provide financial support to the VIEs; and | |||||||||||||||||||
the creditors of the VIEs did not have recourse to Exelon's, Generation's or BGE's general credit. | |||||||||||||||||||
The carrying amounts and classification of the consolidated VIEs' assets and liabilities included in Exelon's, Generation's, and BGE's consolidated financial statements at June 30, 2014 and December 31, 2013 are as follows: | |||||||||||||||||||
30-Jun-14 | 31-Dec-13 | ||||||||||||||||||
Exelon (a) (b) | Generation (b) | BGE | Exelon (a) | Generation | BGE | ||||||||||||||
Current assets | $ | 991 | $ | 956 | $ | 28 | $ | 484 | $ | 446 | $ | 28 | |||||||
Noncurrent assets | 7,426 | 7,407 | 3 | 1,905 | 1,884 | 3 | |||||||||||||
Total assets | $ | 8,417 | $ | 8,363 | $ | 31 | $ | 2,389 | $ | 2,330 | $ | 31 | |||||||
Current liabilities | $ | 815 | $ | 732 | $ | 76 | $ | 566 | $ | 481 | $ | 74 | |||||||
Noncurrent liabilities | 2,911 | 2,738 | 158 | 774 | 562 | 195 | |||||||||||||
Total liabilities | $ | 3,726 | $ | 3,470 | $ | 234 | $ | 1,340 | $ | 1,043 | $ | 269 | |||||||
30-Jun-14 | 31-Dec-13 | ||||||||||||||||||
Exelon | Generation | BGE | Exelon | Generation | BGE | ||||||||||||||
Cash and cash equivalents | $ | 126 | $ | 126 | $ | - | $ | 62 | $ | 62 | $ | - | |||||||
Restricted cash | 75 | 47 | 28 | 80 | 52 | 28 | |||||||||||||
Accounts receivable, net | |||||||||||||||||||
Customer | 296 | 296 | - | 260 | 260 | - | |||||||||||||
Other | 133 | 133 | - | - | - | - | |||||||||||||
Inventory | |||||||||||||||||||
Fossil fuel | 103 | 103 | - | 2 | 2 | - | |||||||||||||
Materials and supplies | 165 | 165 | - | - | - | - | |||||||||||||
Other current assets | 61 | 54 | - | 53 | 42 | - | |||||||||||||
Total current assets | 959 | 924 | 28 | 457 | 418 | 28 | |||||||||||||
Property, plant and equipment, net | 4,603 | 4,603 | - | 1,171 | 1,171 | - | |||||||||||||
Nuclear decommissioning trust funds | 2,030 | 2,030 | - | - | - | - | |||||||||||||
Goodwill | 48 | 48 | - | - | - | - | |||||||||||||
Other noncurrent assets | 125 | 106 | 3 | 127 | 106 | 3 | |||||||||||||
Total noncurrent assets | 6,806 | 6,787 | 3 | 1,298 | 1,277 | 3 | |||||||||||||
Total assets | $ | 7,765 | $ | 7,711 | $ | 31 | $ | 1,755 | $ | 1,695 | $ | 31 | |||||||
Short-term borrowings | $ | 40 | $ | 40 | $ | - | $ | - | $ | - | $ | - | |||||||
Long-term debt due within one year | 84 | 5 | 72 | 85 | 5 | 70 | |||||||||||||
Accounts payable | 243 | 243 | - | 170 | 170 | - | |||||||||||||
Accrued expenses | 89 | 86 | 4 | 26 | 22 | 4 | |||||||||||||
Mark-to-market derivative liabilities | 24 | 24 | - | 29 | 29 | - | |||||||||||||
Unamortized energy contracts | 12 | 12 | - | 5 | 5 | - | |||||||||||||
Other current liabilities | 165 | 165 | - | 5 | 5 | - | |||||||||||||
Total current liabilities | 657 | 575 | 76 | 320 | 236 | 74 | |||||||||||||
Long-term debt | 258 | 84 | 158 | 298 | 86 | 195 | |||||||||||||
Asset retirement obligations | 1,731 | 1,731 | - | - | - | - | |||||||||||||
Pension obligation (a) | 133 | 133 | - | - | - | - | |||||||||||||
Non-pension postretirement benefit | 136 | 136 | - | - | - | - | |||||||||||||
Unamortized energy contracts | 18 | 18 | - | 12 | 12 | - | |||||||||||||
Other noncurrent liabilities | 178 | 178 | - | 28 | 28 | - | |||||||||||||
Noncurrent liabilities | 2,454 | 2,280 | 158 | 338 | 126 | 195 | |||||||||||||
Total liabilities | $ | 3,111 | $ | 2,855 | $ | 234 | $ | 658 | $ | 362 | $ | 269 | |||||||
___________ | |||||||||||||||||||
Includes the CNEG Retail Gas' pension obligation, which is presented as a net asset balance within the Prepaid Pension asset line item on Generation's balance sheet. See Note 13 for additional details. | |||||||||||||||||||
Unconsolidated Variable Interest Entities | |||||||||||||||||||
Exelon's and Generation's variable interests in unconsolidated VIEs generally include equity investments and energy purchase and sale contracts. For the equity investments, the carrying amount of the investments is reflected on Exelon's and Generation's Consolidated Balance Sheets in Investments in affiliates, Investments, and Other Assets. For the energy purchase and sale contracts and the fuel purchase commitments (commercial agreements), the carrying amount of assets and liabilities in Exelon's and Generation's Consolidated Balance Sheets that relate to their involvement with the VIEs are predominately related to working capital accounts and generally represent the amounts owed by, or owed to, Exelon and Generation for the deliveries associated with the current billing cycles under the commercial agreements. Further, Exelon and Generation have not provided material debt or equity support, liquidity arrangements or performance guarantees associated with these commercial agreements. | |||||||||||||||||||
The Registrants' unconsolidated VIEs consist of: | |||||||||||||||||||
Energy purchase and sale agreements with VIEs for which Generation has concluded that consolidation is not required. | |||||||||||||||||||
ZionSolutions, LLC asset sale agreement with EnergySolutions, Inc. and certain subsidiaries in which Generation has a variable interest but has concluded that consolidation is not required. | |||||||||||||||||||
Equity investments in energy development projects and energy generating facilities for which Generation has concluded that consolidation is not required. | |||||||||||||||||||
As of June 30, 2014 and December 31, 2013, Exelon and Generation had significant unconsolidated variable interests in nine and eight VIEs, respectively, for which Exelon or Generation, as applicable, was not the primary beneficiary; including certain equity method investments and certain commercial agreements. The increase in the number of unconsolidated VIEs is due to an investment in another unconsolidated VIE and the execution of an energy purchase and sale agreement with an unconsolidated VIE, offset by the sale of Generation's ownership interest in one unconsolidated VIE. The following tables present summary information about Exelon and Generation's significant unconsolidated VIE entities: | |||||||||||||||||||
Commercial | Equity | ||||||||||||||||||
Agreement | Investment | ||||||||||||||||||
30-Jun-14 | VIEs | VIEs | Total | ||||||||||||||||
Total assets (a) | $ | 119 | $ | 325 | $ | 444 | |||||||||||||
Total liabilities (a) | 2 | 120 | 122 | ||||||||||||||||
Exelon's ownership interest in VIE (a) | 0 | 63 | 63 | ||||||||||||||||
Other ownership interests in VIE (a) | 117 | 142 | 259 | ||||||||||||||||
Registrants' maximum exposure to loss: | |||||||||||||||||||
Carrying amount of equity method investments | 0 | 73 | 73 | ||||||||||||||||
Contract intangible asset | 9 | 0 | 9 | ||||||||||||||||
Debt and payment guarantees | 0 | 3 | 3 | ||||||||||||||||
Net assets pledged for Zion Station decommissioning (b) | 45 | 0 | 45 | ||||||||||||||||
Commercial | Equity | ||||||||||||||||||
Agreement | Investment | ||||||||||||||||||
31-Dec-13 | VIEs | VIEs | Total | ||||||||||||||||
Total assets (a) | $ | 128 | $ | 332 | $ | 460 | |||||||||||||
Total liabilities (a) | 17 | 123 | 140 | ||||||||||||||||
Exelon's ownership interest in VIE (a) | 0 | 86 | 86 | ||||||||||||||||
Other ownership interests in VIE (a) | 111 | 123 | 234 | ||||||||||||||||
Registrants' maximum exposure to loss: | |||||||||||||||||||
Carrying amount of equity method investments | 7 | 67 | 74 | ||||||||||||||||
Contract intangible asset | 9 | 0 | 9 | ||||||||||||||||
Debt and payment guarantees | 0 | 5 | 5 | ||||||||||||||||
Net assets pledged for Zion Station decommissioning (b) | 44 | 0 | 44 | ||||||||||||||||
These items represent amounts on the unconsolidated VIE balance sheets, not on Exelon's or Generation's Consolidated Balance Sheets. These items are included to provide information regarding the relative size of the unconsolidated VIEs. | |||||||||||||||||||
These items represent amounts on Exelon's and Generation's Consolidated Balance Sheets related to the asset sale agreement with ZionSolutions, LLC. The net assets pledged for Zion Station decommissioning includes gross pledged assets of $402 million and $458 million as of June 30, 2014 and December 31, 2013, respectively; offset by payables to ZionSolutions LLC of $357 million and $414 million as of June 30, 2014 and December 31, 2013, respectively. These items are included to provide information regarding the relative size of the ZionSolutions LLC unconsolidated VIE. | |||||||||||||||||||
For each of the unconsolidated VIEs, Exelon and Generation assess the risk of a loss equal to their maximum exposure to be remote and, accordingly, Exelon and Generation have not recognized a liability associated with any portion of the maximum exposure to loss. In addition, there are no material agreements with, or commitments by, third parties that would affect the fair value or risk of their variable interests in these VIEs. | |||||||||||||||||||
Merger_and_Acquisitions_Exelon
Merger and Acquisitions (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended |
Jun. 30, 2014 | |
Business Acquisition [Line Items] | ' |
Mergers and Acquisitions (Exelon, Generation, ComEd, PECO and BGE) | ' |
4. Mergers, Acquisitions and Dispositions | |
Proposed Merger with Pepco Holdings, Inc. (Exelon) | |
Description of Transaction | |
On April 29, 2014, Exelon and Pepco Holdings, Inc. (PHI) signed an agreement and plan of merger (as subsequently amended and restated as of July 18, 2014, the Merger Agreement) to combine the two companies in an all cash transaction. The resulting company will retain the Exelon name and be headquartered in Chicago. Under the Merger Agreement, PHI's shareholders will receive $27.25 of cash in exchange for each share of PHI common stock. In connection with the Merger Agreement, Exelon entered into a subscription agreement under which it purchased $90 million of a new class of nonvoting, nonconvertible and nontransferable preferred securities of PHI, in the second quarter of 2014, with additional investments of $18 million to be made quarterly up to a maximum aggregate investment of $180 million. PHI has the right to redeem the preferred securities at its option for the purchase price paid plus accrued dividends, if any. The $90 million of PHI preferred securities are included in Other non-current assets on Exelon's Consolidated Balance Sheet as of June 30, 2014. Exelon expects total cash required to fund the acquisition of common stock and preferred securities plus other related acquisition costs to total approximately $7.2 billion. | |
The transaction must be approved by the shareholders of PHI. Completion of the transaction is also conditioned upon approval by the FERC, the District of Columbia Public Service Commission and several state commissions including Delaware Public Service Commission, MDPSC, the New Jersey Board of Public Utilities and the Virginia Department of Public Utilities. In addition, under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act), the transaction cannot be completed until Exelon has made required notifications and given certain information and materials to the Federal Trade Commission (FTC) and/or the Antitrust Division of the United States Department of Justice (DOJ) and until specified waiting period requirements have expired. | |
Exelon has been named in suits filed in the Delaware Chancery Court alleging that individual directors of PHI breached their fiduciary duties by entering into the proposed merger transaction and Exelon aided and abetted the individual directors' breaches. The suits seek to enjoin PHI from completing the merger or seek rescission of the merger if completed. In addition, they also seek unspecified damages and costs. Exelon intends to vigorously defend these suits. Exelon does not believe these suits will impact the completion of the transaction, and they are not expected to have a material impact on Exelon's results of operations. | |
Through June 30, 2014, Exelon has incurred approximately $25 million of expense associated with the transaction, primarily related to fees incurred as part of the acquisition. As part of the applications for approval of the merger, Exelon and PHI have proposed a package of benefits to PHI utilities' customers which results in a direct investment of more than $100 million. The Merger Agreement also provides for termination rights on behalf of both parties. Under certain circumstances, if the Merger Agreement is terminated, PHI may be required to pay Exelon a termination fee ranging from $259 million to $293 million plus certain expenses. If the Merger Agreement does not close due to a regulatory failure, Exelon may be required to pay PHI a termination fee equal to the amount of purchased nonvoting preferred securities (described above), by means of PHI redeeming the outstanding nonvoting preferred securities for no consideration other than the nominal par value of the stock. The companies anticipate closing the transaction in the second or third quarter of 2015, subject to receipt of required regulatory approvals. | |
Merger Financing | |
Exelon intends to fund the all-cash transaction using a combination of approximately $3.5 billion of debt, up to $1.0 billion cash from asset sales primarily at Generation, and the remainder through issuance of equity (including mandatory convertible securities). On June 11, 2014, Exelon marketed an equity offering of 57.5 million shares of its common stock at a public offering price of $35 per share in connection with forward sales agreements and $1.2 billion of junior subordinated notes in the form of 23 million equity units. In addition, Exelon signed a 364-day $7.2 billion senior unsecured bridge credit facility to support the contemplated transaction and provide flexibility for timing of permanent financing, which has subsequently been reduced to $4.2 billion as a result of the equity issuances. See Note 10—Debt and Credit Agreements and Note 16—Common Stock for more information. | |
Safe Harbor Water Power Corporation (Exelon and Generation) | |
On May 15, 2014, Generation entered into a Purchase and Sale Agreement with Brookfield Renewable Energy Partners L.P. to sell Generation's 67% economic equity interest in the 417 MW Safe Harbor Water Power Corporation hydroelectric facility on the Susquehanna River in Pennsylvania (Safe Harbor). The total purchase price for the transaction is approximately $613 million. The transaction, which is subject to customary closing conditions and regulatory approvals, is expected to be completed in the third quarter of 2014, at which time Generation anticipates recording a pre-tax gain of approximately $332 million. The after-tax net cash proceeds of $375 million are expected to be used to finance a portion of the acquisition of PHI and for general corporate purposes. | |
Regulatory_Matters_Exelon_Gene
Regulatory Matters (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | |||||||||||||||||||||||||||||
Jun. 30, 2014 | ||||||||||||||||||||||||||||||
Public Utilities, General Disclosures [Line Items] | ' | |||||||||||||||||||||||||||||
Regulatory Matters (Exelon, Generation, ComEd, PECO and BGE) | ' | [1] | ||||||||||||||||||||||||||||
5. Regulatory Matters (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||||||||||||||
Regulatory and Legislative Proceedings (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||||||||||||||
Except for the matters noted below, the disclosures set forth in Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K appropriately represent, in all material respects, the current status of regulatory and legislative proceedings of the Registrants. The following is an update to that discussion. | ||||||||||||||||||||||||||||||
Illinois Regulatory Matters | ||||||||||||||||||||||||||||||
Energy Infrastructure Modernization Act (Exelon and ComEd). Since 2011, ComEd's distribution rates are established through a performance-based rate formula, pursuant to EIMA. Participating utilities are required to file an annual update to the performance-based formula rate tariff on or before May 1, with resulting rates effective in January of the following year. This annual formula rate update is based on prior year actual costs and current year projected capital additions. The update also reconciles any differences between the revenue requirement(s) in effect for the prior year and actual costs incurred for that year. ComEd's earned rate of return on common equity is required to be within plus or minus 50 basis points (“the collar”) of the target rate of return determined as the annual average rate on 30-year treasury notes plus 580 basis points. Therefore, the collar limits favorable and unfavorable impacts of weather and load on distribution revenue. In addition, ComEd's target rate of return on common equity is subject to reduction if ComEd does not deliver the reliability and customer service benefits, as defined, it has committed to over the ten-year life of the investment program. ComEd records regulatory assets or regulatory liabilities and corresponding increases or decreases to operating revenues for any differences between the revenue requirement(s) in effect and ComEd's best estimate of the revenue requirement expected to be approved by the ICC for that year's reconciliation. As of June 30, 2014, and December 31, 2013, ComEd had recorded a net regulatory asset associated with the distribution formula rate of $439 million and $463 million, respectively. The regulatory asset associated with the distribution true-up will be amortized as the associated amounts are recovered through rates. | ||||||||||||||||||||||||||||||
On April 16, 2014, ComEd filed its annual distribution formula rate update with the ICC. The filing establishes the revenue requirement used to set the rates that will take effect in January 2015 after the ICC's review and approval, which is due by December 2014. The revenue requirement requested is based on 2013 actual costs plus projected 2014 capital additions as well as an annual reconciliation of the revenue requirement in effect in 2013 to the actual costs incurred that year. ComEd's 2014 filing request includes a total increase to the net revenue requirement of $269 million, reflecting an increase of $174 million for the initial revenue requirement for 2014 and an increase of $95 million related to the annual reconciliation for 2013. The revenue requirement for 2014 provides for a weighted average debt and equity return on distribution rate base of 7.06% inclusive of an allowed return on common equity of 9.25%, reflecting the average rate on 30-year treasury notes plus 580 basis points. The annual reconciliation for 2013 provided for a weighted average debt and equity return on distribution rate base of 7.04% inclusive of an allowed return on common equity of 9.20%, reflecting the average rate on 30-year treasury notes plus 580 basis points less a performance metrics penalty of 5 basis points. | ||||||||||||||||||||||||||||||
EIMA also provides a structure for substantial capital investment by utilities over a ten-year period to modernize Illinois' electric utility infrastructure. Participating utilities are required to file an annual update on their AMI implementation progress. On April 1, 2014, ComEd filed an annual progress report on its AMI Implementation Plan with the ICC. The ICC ruled that no investigation would be opened in regards to that April filing. In March, 2014, ComEd filed a petition with the ICC for approval to accelerate the deployment of AMI meters. On June 11, 2014, the ICC approved ComEd's accelerated deployment plan which allows for the installation of more than four million smart meters throughout ComEd's service territory by 2018, three years in advance of the originally scheduled 2021 completion date. To date, nearly 350,000 smart meters have been installed in the Chicago area. | ||||||||||||||||||||||||||||||
Appeal of the 2012 Formula Rate Tariff (Exelon and ComEd). On April 30, 2012, ComEd filed its annual distribution formula rate update. On December 20, 2012, the ICC issued its final order, which increased the revenue requirement by $73 million, in conformity with the formula rate structure provided in the ICC's May 2012 and Rehearing Orders. The $73 million reflected an increase of $80 million for the initial revenue requirement for 2012 and a decrease of $7 million for the annual reconciliation for 2011. The rate increase was set using an allowed return on capital of 7.54% (inclusive of an allowed return on common equity of 9.81%). The rates took effect in January 2013. ComEd and intervenors requested a rehearing on specific issues, which was denied by the ICC. ComEd and intervenors also filed appeals with the Illinois Appellate Court. | ||||||||||||||||||||||||||||||
On June 30, 2014, the Illinois Appellate Court issued its opinion in the Appeal of the 2012 Formula Rate Tariff. Two of the three issues appealed (billing determinants and the use of certain allocators) were the same issues previously rejected by the Court in the Appeal of Initial Formula Rate Tariff (see Appeal of Initial Formula Rate Tariff discussed below). The Court re-affirmed the ICC's order and rejected ComEd's arguments. However, on the third issue (rate case expenses), the Court allowed for the possibility of future recovery. The Court's opinion has no accounting impact as ComEd recorded the distribution formula regulatory asset consistent with the ICC's final Order. | ||||||||||||||||||||||||||||||
Appeal of Initial Formula Rate Tariff (Exelon and ComEd). On March 26, 2014, the Illinois Appellate Court issued an opinion with respect to ComEd's appeal of the ICC's order relating to ComEd's initial formula rate tariff. The most significant financial issues under appeal related to ICC findings that were counter to the formula rate legislation and were clarified by subsequent legislation (Senate Bill 9). Therefore, only a subset of the issues originally appealed remained. The Court found against ComEd on each of the remaining issues: compensation related adjustments, billing determinants and the use of certain allocators. The Court's opinion has no accounting impact as ComEd recorded the distribution formula regulatory asset consistent with the ICC's final Order. | ||||||||||||||||||||||||||||||
ComEd has asked the Illinois Supreme Court to hear the issue of allocation between State and Federal regulatory jurisdictions. On June 4, 2014, ComEd filed a Petition for Leave to Appeal with the Illinois Supreme Court solely on the issue of allocation between FERC and ICC jurisdictional costs. On July 2, the ICC filed its Answer to the Petition, arguing that Supreme Court review is not necessary or appropriate. Under the rules, ComEd is not allowed to reply to the ICC filing. There is no set time by which the Court must decide rule on the Petition. ComEd cannot predict whether the Court will grant the appeal, or if it does, the ultimate outcome. | ||||||||||||||||||||||||||||||
Advanced Metering Program Proceeding (Exelon and ComEd). As part of ComEd's 2007 electric distribution rate case, the ICC approved recovery of costs associated with ComEd's System Modernization Program (Rider SMP) for the limited purpose of implementing a pilot program for AMI. In October 2009, the ICC approved ComEd's AMI pilot program and associated rider (Rider AMP). ComEd collected approximately $24 million under Rider AMP and had no collections under Rider SMP through June 30, 2014. In ComEd's 2010 electric distribution rate case, the ICC approved ComEd's transfer of certain other costs from recovery under Rider AMP to recovery through electric distribution rates. | ||||||||||||||||||||||||||||||
Several parties, including the Illinois Attorney General, appealed the ICC's orders on Rider SMP and Rider AMP. The Illinois Appellate Court reversed the ICC's approval of the cost recovery provisions of Rider SMP and Rider AMP on September 30, 2010 and March 19, 2012, respectively. In both cases, the Court ruled that the ICC's approval of the rider constituted single-issue ratemaking. ComEd filed Petitions for Leave to Appeal to the Illinois Supreme Court, which were denied. | ||||||||||||||||||||||||||||||
In October 2013, the ICC opened an investigation on Rider AMP to determine if a refund is required and if so, to determine the appropriate refund amount. The ALJ presiding over the investigation requested each party provide a pre-trial memorandum describing their positions, which were submitted on April 10, 2014. The ICC Staff and the Illinois Attorney General proposed a refund of $14.6 million, representing the amount they claim was collected under Rider AMP since September 30, 2010, the date the Illinois Appellate Court reversed the ICC's approval of the cost recovery provisions of Rider SMP. ComEd believes no refund is appropriate and that any refund obligation associated with Rider AMP should be prospective from no earlier than the date of the Illinois Appellate Court's order on Rider AMP, or March 19, 2012, which would represent a refund of approximately $0.4 million. During the second quarter of 2014, ComEd reached a tentative proposed agreement to jointly resolve the disputed refund claim. Any joint agreement must ultimately be approved by the ICC through its investigation. At June 30, 2014, ComEd recorded a regulatory liability of approximately $9 million based on its assessment of the likely outcome of the matter. ComEd cannot predict the ultimate outcome of the ICC's investigation and therefore, actual refunds, if any, may differ from the estimated liability recorded at June 30, 2014. | ||||||||||||||||||||||||||||||
Grand Prairie Gateway Transmission Line (ComEd). On December 2, 2013, ComEd filed a request to obtain the ICC's approval to construct a 57-mile, overhead 345kV transmission line that traverses Ogle, DeKalb, Kane and DuPage Counties in Northern Illinois. Numerous stakeholders are participating in the proceeding and ComEd expects the ICC to rule on its request by October 27, 2014. On May 28, 2014, in a separate proceeding, FERC issued an order granting ComEd's request to include 100% of the capital costs recorded to construction work in progress during construction of the line in ComEd's transmission rate base. If the project is cancelled or abandoned for reasons beyond ComEd's control, FERC approved the ability for ComEd to recover 100% of its prudent costs incurred after May 21, 2014 and 50% of its costs incurred prior to May 21, 2014 in ComEd's transmission rate base. | ||||||||||||||||||||||||||||||
Illinois Procurement Proceedings (Exelon, Generation and ComEd). ComEd is permitted to recover its electricity procurement costs from retail customers without mark-up. Since June 2009, as a result of the Illinois Settlement Legislation, the IPA designs, and the ICC approves, an electricity supply portfolio for ComEd and the IPA administers a competitive process under which ComEd procures its electricity supply from various suppliers, including Generation. On December 18, 2013, the ICC approved the IPA's procurement plan covering the period June 2014 through May 2019. | ||||||||||||||||||||||||||||||
The Illinois Settlement Legislation requires ComEd to purchase an increasing percentage of the electricity for customer deliveries from renewable energy resources. Purchases by customers of electricity from competitive generation suppliers, whether as a result of the customers' own actions or as a result of municipal aggregation, are not included in this calculation and have the effect of reducing ComEd's purchase obligation. ComEd entered into several 20-year contracts with unaffiliated suppliers in December 2010 regarding the procurement of long-term renewable energy and associated RECs in order to meet its obligations under the state's RPS. Under the Illinois Settlement Legislation, all associated costs are recoverable from customers. The ICC did not require the acquisition of additional renewable resources for the period June 2014 through May 2015 due to ComEd expecting to exceed the renewable cost cap. | ||||||||||||||||||||||||||||||
The IPA's 2014-2019 plan provides for two separate energy procurements during 2014 to address potential fluctuations in energy demand due to customer switching between ComEd and competitive electric generation suppliers. The ICC also approved the IPA's expansion of energy efficiency programs for both ComEd and Ameren. As of June 30, 2014, ComEd has completed the first ICC-approved procurement process for a portion of its energy requirements through the periods ending May 31, 2015, 2016 and 2017. See Note 18 – Commitments and Contingencies for additional information on ComEd's energy commitments. | ||||||||||||||||||||||||||||||
During 2013, the ICC approved, and directed ComEd and Ameren (the Utilities) to enter into 20-year sourcing agreements with FutureGen Industrial Alliance, Inc (FutureGen), under which FutureGen will retrofit and repower an existing plant in Morgan County, Illinois to a 166 MW near zero emissions coal-fueled generation plant, with an assumed commercial operation date in 2017. The sourcing agreement provides that the Utilities will pay FutureGen's contract prices, which are set annually pursuant to a formula rate. The contract prices are based on the difference between the costs of the facility and the revenues FutureGen receives from selling capacity and energy from the unit into the MISO or other markets, as well as any other revenue FutureGen receives from the operation of the facility. The order also directs the Utilities to recover (or pass along) these costs from the Utilities' distribution system customers, regardless of whether they purchase electricity from the utility or from competitive electric generation suppliers. In February 2013, ComEd filed an appeal with the Illinois Appellate Court questioning the legality of requiring ComEd to procure power for retail customers purchasing electricity from competitive electric generation suppliers. On July 22, 2014, the Illinois Appellate Court issued its ruling re-affirming the ICC's order requiring ComEd to enter into the contract with FutureGen and allowing ComEd to recover the associated costs from retail customers purchasing electricity from both ComEd and competitive electric generation suppliers. ComEd is assessing the Court's order and is in process of determining the appropriate course of action. | ||||||||||||||||||||||||||||||
On August 22, 2013, the Utilities executed the sourcing agreement with FutureGen in accordance with the ICC order. However, in the event the order is reversed as a result of the appeal, ComEd's obligations under the sourcing agreement would be suspended. In June 2014, ComEd filed a petition with the ICC seeking approval of a tariff allowing ComEd to recover its costs associated with the FutureGen contract from all of its delivery service customers. An order approving that tariff is expected before the end of 2014. Depending on the ultimate outcome of the outstanding appeals, and petitions, the eventual market conditions and the cost of the facility, the sourcing agreement could have a material adverse impact on Exelon's and ComEd's cash flows and financial positions. | ||||||||||||||||||||||||||||||
Pennsylvania Regulatory Matters | ||||||||||||||||||||||||||||||
Pennsylvania Procurement Proceedings (Exelon and PECO). On October 12, 2012, the PAPUC issued its Opinion and Order approving PECO's second DSP Program, which was filed with the PAPUC in January 2012. The program, which has a 24-month term from June 1, 2013 through May 31, 2015, complies with electric generation procurement guidelines set forth in Act 129. | ||||||||||||||||||||||||||||||
In the second DSP Program, PECO is procuring electric supply for its default electric customers through five competitive procurements. The load for the residential and small and medium commercial classes is served through competitively procured fixed price, full requirements contracts of two years or less. For the large commercial and industrial class load, PECO has competitively procured contracts for full requirements default electric generation with the price for energy in each contract set to be the hourly price of the spot market during the term of delivery. In December 2012 and February 2013, PECO entered into contracts with PAPUC-approved bidders, including Generation, for its residential and small and medium commercial classes that began in June 2013. In September 2013, PECO entered into contracts with PAPUC-approved bidders, including Generation, for its residential and small and medium commercial classes that began in December 2013. In January 2014, PECO entered into contracts with PAPUC-approved bidders, including Generation, for its residential and small, medium, and large commercial classes that began in June 2014. Charges incurred for electric supply procured through contracts with Generation are included in purchased power from affiliates on PECO's Statement of Operations and Comprehensive Income. | ||||||||||||||||||||||||||||||
In addition, the second DSP Program includes a number of retail market enhancements recommended by the PAPUC in its previously issued Retail Markets Intermediate Work Plan Order. PECO was also directed to submit a plan to allow its low-income Customer Assistance Program (CAP) customers to purchase their generation supply from EGSs beginning April 2014. On May 1, 2013, PECO filed its CAP Shopping Plan with the PAPUC. By Order entered on January 24, 2014, the PAPUC approved PECO's plan, with modifications, to make CAP shopping available beginning April 15, 2014. On March 20, 2014, low-income advocacy groups filed an appeal and emergency request for a stay with the Pennsylvania Commonwealth Court, claiming that the PAPUC-ordered CAP Shopping plan does not contain sufficient protections for low-income customers. On March 28, 2014, the Commonwealth Court issued the requested stay, pending a full review of the appeal. Pending the Commonwealth Court's review, PECO will not implement CAP Shopping. The Commonwealth Court's decision is expected in late 2014. | ||||||||||||||||||||||||||||||
On March 10, 2014, PECO filed its third DSP Program with the PAPUC. The program has a 24-month term from June 1, 2015 through May 31, 2017, and complies with electric generation procurement guidelines set forth in Act 129. A PAPUC ruling is expected in late 2014. | ||||||||||||||||||||||||||||||
Smart Meter and Smart Grid Investments (Exelon and PECO). Pursuant to Act 129 and the follow-on Implementation Order of 2009, in April 2010, the PAPUC approved PECO's Smart Meter Procurement and Installation Plan (SMPIP), under which PECO will install more than 1.6 million smart meters and an AMI communication network by 2020. The first phase of PECO's SMPIP, which was completed on June 19, 2013, included the installation of an AMI communications network and the deployment of 600,000 smart meters to communicate with that network. On May 31, 2013, PECO and interested parties filed a Joint Petition for Settlement of the universal deployment plan with the PAPUC which was approved without modification on August 15, 2013. The Joint Petition for Settlement supports all material aspects of PECO's universal deployment plan, including cost recovery, excluding certain amounts discussed below. Universal deployment is the second phase of PECO's SMPIP, under which PECO will deploy substantially all of the 1.6 million smart meters on an accelerated basis by the end of 2014. In total, PECO currently expects to spend up to $595 million, excluding the cost of the original meters (as further described below), on its smart meter infrastructure and approximately $120 million on smart grid investments through 2014 of which $200 million will be funded by SGIG as discussed below. As of June 30, 2014, PECO has spent $480 million and $119 million on smart meter and smart grid infrastructure, respectively, not including the DOE reimbursements received to date. | ||||||||||||||||||||||||||||||
Pursuant to the ARRA of 2009, PECO and the DOE entered into a Financial Assistance Agreement to extend PECO $200 million in non-taxable SGIG funds of which $140 million relates to smart meter deployment and $60 million relates to smart grid infrastructure. As part of the agreement, the DOE has a conditional ownership interest in qualifying Federally-funded project property and equipment, which is subordinate to PECO's existing mortgage. The SGIG funds are being used to offset the total impact to ratepayers of the smart meter deployment required by Act 129. As of June 30, 2014, PECO has received $198 million, including $4 million for sub-recipients, of the $200 million in reimbursements. PECO's outstanding receivable from the DOE for reimbursable costs was $2 million as of June 30, 2014, which has been recorded in Other accounts receivable, net on Exelon's and PECO's Consolidated Balance Sheets. | ||||||||||||||||||||||||||||||
On August 15, 2012, PECO suspended installation of smart meters for new customers based on a limited number of incidents involving overheating meters. Following its own internal investigation and additional scientific analysis and testing by independent experts completed after September 30, 2012, PECO announced its decision to resume meter deployment work on October 9, 2012. PECO has replaced the previously installed meters with an alternative vendor's meters. PECO is moving forward with the alternative meters during universal deployment and continues to evaluate meters from several vendors and may use more than one meter vendor during universal deployment. | ||||||||||||||||||||||||||||||
Following PECO's decision, as of October 9, 2012, PECO will no longer use the original smart meters. For the meters that will no longer be used, the accounting guidance requires that any difference between the carrying value and net realizable value be recognized in the current period's earnings, before considering potential regulatory recovery. The cost of the original meters, including installation and removal costs, owned by PECO was approximately $17 million, net of approximately $16 million of reimbursements from the DOE and approximately $2 million of depreciation. PECO requested and received approval from the DOE that the original meters continue to be allowable costs and that any settlement with the vendor will not be considered project income. In addition, PECO remains eligible for the full $200 million in SGIG funds. On August 15, 2013, PECO entered into an agreement with the original vendor, which was part of the final agreement discussed below, under which PECO transferred the original uninstalled meters to the vendor and received $12 million in return. On January 23, 2014, PECO entered a final agreement with the vendor pursuant to which PECO will be reimbursed for amounts incurred for the original meters and related installation and removal costs, via cash payments and rebates on future purchases of licenses, goods and services primarily through 2017. PECO previously had intended to seek regulatory rate recovery in a future filing with the PAPUC of amounts not recovered from the vendor. As PECO believed such costs were probable of rate recovery based on applicable case law and past precedent on reasonably and prudently incurred costs, a regulatory asset was established at the time of the removals. As of December 31, 2013, $5 million was recorded on Exelon's and PECO's Consolidated Balance Sheets. Pursuant to the January 23, 2014, vendor agreement, PECO reclassified the regulatory asset balance as a receivable, which was fully collected as of June 30, 2014, with no gain or loss impacts on future results of operations. | ||||||||||||||||||||||||||||||
Energy Efficiency Programs (Exelon and PECO). PECO's PAPUC-approved Phase I EE&C Plan had a four-year term that began on June 1, 2009 and concluded on May 31, 2013. The Phase I Plan set forth how PECO would meet the required reduction targets established by Act 129's EE&C provisions, which included a 3% reduction in electric consumption in PECO's service territory and a 4.5% reduction in PECO's annual system peak demand in the 100 hours of highest demand by May 31, 2013. | ||||||||||||||||||||||||||||||
The peak demand period ended on September 30, 2012 and PECO filed its final compliance report on Phase 1 targets with the PAPUC on November 15, 2013. On March 20, 2014, the PAPUC issued its final report stating that PECO was in full compliance with all Phase I targets. | ||||||||||||||||||||||||||||||
On November 14, 2013, the PAPUC issued a Tentative Order on Act 129 demand reduction programs which seeks comments on a proposed demand response program methodology for future Act 129 demand reduction programs as well as demand response potential and wholesale prices suppression studies. In its February 20, 2014 Final Order, the PAPUC stated that it does not expect to make a decision as to whether it will prescribe additional demand response obligations until 2015. Any decision reached would affect PECO's EE&C Plan subsequent to its Phase II Plan. | ||||||||||||||||||||||||||||||
On February 28, 2014, PECO filed a Petition for Approval to amend its EE&C Phase II Plan to continue its DLC demand reduction program for mass market customers from June 1, 2014 to May 31, 2016. PECO proposed to fund the estimated $10 million annual costs of the program by modifying incentive levels for other Phase II programs. The costs of the DLC program will be recovered through PECO's Energy Efficiency Program Charge along with other Phase II Plan costs. In an April 23, 2014 Tentative Order, the PAPUC granted PECO's Petition. The Order became final on May 5, 2014. | ||||||||||||||||||||||||||||||
Pennsylvania Retail Electricity Market (Exelon and PECO). The extreme weather experienced in early 2014 resulted in increased commodity costs causing certain shopping customers to receive unexpectedly high utility bills. In response to a significant number of customer complaints throughout Pennsylvania, on April 3, 2014, the PAPUC unanimously voted to adopt two rulemaking orders to address the issue. The first rulemaking order requires electric generation suppliers to provide more consumer education regarding their contract. The second rulemaking order requires electric distribution companies to enable customers to switch suppliers within three business days (known as accelerated switching). The improved customer education and accelerated switching are to be in place within 30 days and six months of approval of the orders, respectively. The Independent Regulatory Review Commission granted approval of the orders on May 22, 2014. The orders became final on June 14, 2014. | ||||||||||||||||||||||||||||||
Maryland Regulatory Matters | ||||||||||||||||||||||||||||||
2014 Maryland Electric and Gas Distribution Rate Case (Exelon and BGE). On July 2, 2014, BGE filed an application for increases of $118 million and $68 million to its electric and gas base rates, respectively, with the MDPSC. The requested rates of return on equity in the application were 10.65% and 10.55% for electric and gas distribution, respectively. The new electric and gas distribution base rates are expected to take effect in late January 2015. BGE cannot predict the outcome of this proceeding or how much of the requested increases the MDPSC will approve. | ||||||||||||||||||||||||||||||
2013 Maryland Electric and Gas Distribution Rate Case (Exelon and BGE). On May 17, 2013, BGE filed an application for increases of $101 million and $30 million to its electric and gas base rates, respectively, with the MDPSC. The requested rates of return on equity in the application were 10.50% and 10.35% for electric and gas distribution, respectively. In addition to these requested rate increases, BGE's application also included a request for recovery of incremental capital expenditures and operating costs associated with BGE's proposed short-term reliability improvement plan (the “ERI initiative”) in response to a MDPSC order through a surcharge separate from base rates. On August 23, 2013, BGE filed an update to its rate request which altered the requested increase to electric base rates from $101 million to $83 million and the requested increase to gas base rates from $30 million to $24 million. On December 13, 2013, the MDPSC issued an order in BGE's 2013 electric and natural gas distribution rate case for increases in annual distribution service revenue of $34 million and $12 million, respectively. The electric distribution rate increase was set using an allowed return on equity of 9.75% and the gas distribution rate increase was set using an allowed return on equity of 9.60%. The approved electric and natural gas distribution rates became effective for services rendered on or after December 13, 2013. As part of its December 13, 2013 decision granting BGE increases for its gas and electric distribution rates, the MDPSC also authorized BGE to recover through a surcharge mechanism costs associated with five ERI initiative programs designed to accelerate electric reliability improvements. Such a decision, however, was premised upon the condition that the MDPSC approve specific projects scheduled for each year of the five-year program in advance of cost recovery through the surcharge mechanism. On March 31, 2014, after reviewing comments filed by the parties and conducting a hearing on the matter, the MDPSC approved all but one project proposed for completion in 2014 as part of the ERI initiative. As a result of the MDPSC's decision, BGE estimates 2014 capital and operating and maintenance costs associated with the ERI initiative of $14.8 million and a revenue requirement of $1.4 million. The ERI initiative surcharge became effective June 1, 2014. BGE is required to file an update on the 2014 work plan and reliability performance information for the specific projects, along with its work plan and cost estimates for 2015, on or before November 1, 2014. | ||||||||||||||||||||||||||||||
In January 2014, the residential consumer advocate in Maryland filed an appeal to the order issued by the MDPSC on December 13, 2013 in BGE's 2013 electric and gas distribution rate cases. The nature of the appeal will not be known until further pleadings are filed by the residential consumer advocate. BGE cannot predict the outcome of this appeal. | ||||||||||||||||||||||||||||||
Smart Meter and Smart Grid Investments (Exelon and BGE). In August 2010, the MDPSC approved a comprehensive smart grid initiative for BGE that includes the planned installation of 2 million residential and commercial electric and gas smart meters at an expected total cost of $480 million of which $200 million has been recovered through a grant from the DOE. The MDPSC's approval ordered BGE to defer the associated incremental costs, depreciation and amortization, and an appropriate return, in a regulatory asset until such time as a cost-effective advanced metering system is implemented. As of June 30, 2014 and December 31, 2013, BGE recorded a regulatory asset of $94 million and $66 million, respectively, representing incremental costs, depreciation and amortization, and a debt return on fixed assets related to its AMI program. Additionally, the MDPSC has determined that the cost recovery for the non-AMI meters that BGE retires will be considered in a future depreciation proceeding. | ||||||||||||||||||||||||||||||
On February 26, 2014, the MDPSC issued an Order authorizing BGE to impose a $75 upfront fee and an $11 recurring fee to customers electing to opt-out, effective the later of the first full billing cycle following July 1, 2014, or the AMI installation date in a customer's community. The fees authorized by the order will be reviewed after an initial 12 to 18 month period. The ultimate impact of opt-out could affect BGE's ability to demonstrate cost-effectiveness of the advanced metering system. | ||||||||||||||||||||||||||||||
Overall, BGE continues to believe the recovery of smart grid initiative costs in future rates is probable as BGE expects to be able to demonstrate that the program benefits exceed costs. | ||||||||||||||||||||||||||||||
The Maryland Strategic Infrastructure Development and Enhancement Program (Exelon and BGE). In February 2013, the Maryland General Assembly passed legislation intended to accelerate gas infrastructure replacements in Maryland by establishing a mechanism for gas companies to promptly recover reasonable and prudent costs of eligible infrastructure replacement projects separate from base rate proceedings. On May 2, 2013, the Governor of Maryland signed the legislation into law, which took effect June 1, 2013. Under the new law, following a proceeding before the MDPSC and with the MDPSC's approval of the eligible infrastructure replacement projects along with a corresponding surcharge, BGE could begin charging gas customers a monthly surcharge for infrastructure costs incurred after June 1, 2013. The legislation includes caps on the monthly surcharges to residential and non-residential customers, and would require an annual true-up of the surcharge revenues against actual expenditures. Investment levels in excess of the cap would be recoverable in a subsequent gas base rate proceeding at which time all costs for the infrastructure replacement projects would be included in gas distribution rates. Irrespective of the cap, BGE is required to file a gas rate case every five years under this legislation. On August 2, 2013, BGE filed its infrastructure replacement plan and associated surcharge. On January 29, 2014, the MDPSC issued a decision conditionally approving the first five years of BGE's plan and surcharge. On March 26, 2014, the Maryland PSC approved as filed BGE's proposed 2014 project list, tariff and associated surcharge amounts, with a surcharge that became effective April 1, 2014. BGE will defer the difference between the surcharge revenues and program costs as a regulated asset or liability, which was immaterial to Exelon and BGE as of June 30, 2014. | ||||||||||||||||||||||||||||||
In February 2014, the residential consumer advocate in Maryland filed an appeal with the Baltimore City Circuit Court to the decision issued by the MDPSC on BGE's infrastructure replacement plan. The residential consumer advocate filed its related legal memorandum on July 7, 2014, claiming that the MDPSC did not apply the appropriate consideration in approving BGE's infrastructure replacement plan and associated surcharge. BGE has until August 7, 2014 to submit a response, and a hearing has been scheduled for September 5, 2014. BGE cannot predict the outcome of this appeal. | ||||||||||||||||||||||||||||||
Federal Regulatory Matters | ||||||||||||||||||||||||||||||
Transmission Formula Rate (Exelon, ComEd and BGE). ComEd's and BGE's transmission rates are each established based on a FERC-approved formula. ComEd and BGE record regulatory assets or regulatory liabilities and corresponding increases or decreases to operating revenues for any differences between the revenue requirement in effect and ComEd's and BGE's best estimate of the revenue requirement expected to be approved by the FERC for that year's reconciliation. As of June 30, 2014, and December 31, 2013, ComEd had recorded a net regulatory asset associated with the transmission formula rate of $10 million and $17 million, respectively, and BGE had recorded a net regulatory asset associated with the transmission formula rate of $4 million and a net regulatory liability of $0 million, respectively. The regulatory asset associated with the transmission true-up will be amortized as the associated amounts are recovered through rates. | ||||||||||||||||||||||||||||||
On April 16, 2014, ComEd filed its annual formula rate update with the FERC. The filing establishes the revenue requirement used to set rates that will take effect in June 2014, subject to review by the FERC and other parties, which is due by November 2014. The revenue requirement is based on 2013 actual costs plus forecasted 2014 capital additions as well as an annual reconciliation of the revenue requirement in effect starting in June 2013 to the actual cost incurred in 2013. The update resulted in a revenue requirement of $524 million plus an $11 million adjustment related to the reconciliation of 2013 actual costs for a total revenue requirement of $535 million. This compares to the 2013 revenue requirement of $488 million plus a $25 million adjustment related to the reconciliation of 2012 actual costs for a total revenue requirement of $513 million. The increase in the revenue requirement was primarily driven by increased capital investment and higher operating and maintenance costs. | ||||||||||||||||||||||||||||||
ComEd's updated formula transmission rate currently provides for a weighted average debt and equity return on transmission rate base of 8.62%, inclusive of an allowed return on common equity of 11.50%, a decrease from the 8.70% average debt and equity return previously authorized. As part of the FERC-approved settlement of ComEd's 2007 transmission rate case, the rate of return on common equity is 11.50% and the common equity component of the ratio used to calculate the weighted average debt and equity return for the transmission formula rate is currently capped at 55%. | ||||||||||||||||||||||||||||||
On April 28, 2014, BGE filed its annual formula rate update with the FERC. The filings established the revenue requirement used to set rates that took effect in June 2014, subject to review by the FERC and other parties, which is due by October 2014. The revenue requirement is based on 2013 actual costs plus forecasted 2014 capital additions as well as an annual reconciliation of the revenue requirement in effect starting in June 2013 to the actual cost incurred in 2013. The update resulted in a revenue requirement of $167 million plus a $4 million adjustment related to the reconciliation of 2013 actual costs for a net revenue requirement of $171 million. This compares to the 2013 revenue requirement of $158 million offset by a $1 million reduction related to the reconciliation of 2012 actual costs for a net revenue requirement of $157 million. The increase in the revenue requirement is primarily driven by higher depreciation expense and an increased level of return on investment associated with a higher equity ratio and increased rate base. | ||||||||||||||||||||||||||||||
BGE's updated formula transmission rate currently provides for a weighted average debt and equity return on transmission rate base of 8.53%, an increase from the 8.35% average debt and equity return previously authorized. As part of the FERC-approved settlement of BGE's 2005 transmission rate case in 2006, the rate of return on common equity for BGE's electric transmission business for new transmission projects placed in service on and after January 1, 2006 is 11.3%, inclusive of a 50 basis point incentive for participating in PJM. | ||||||||||||||||||||||||||||||
FERC Transmission Complaint (Exelon and BGE). On February 27, 2013, consumer advocates and regulators from the District of Columbia, New Jersey, Delaware and Maryland, and the Delaware Electric Municipal Cooperatives (the parties), filed a complaint at FERC against BGE and the PHI companies relating to their respective transmission formula rates. BGE's formula rate includes a 10.8% base rate of return on common equity (ROE) for most investments included in its rate base and 11.3% for the remaining transmission investment (the latter of which is conditioned upon crediting the first 50 basis points of any incentive ROE adders). The parties seek a reduction in the base return on equity to 8.7% and changes to the formula rate process. FERC docketed the matter and set April 3, 2013 as the deadline for interventions, protests and answers. Under FERC rules, the revenues subject to refund are limited to a fifteen month period, and the earliest date from which the base return on equity could be adjusted and refunds required is the date of the complaint. On March 19, 2013, BGE filed a motion to dismiss or sever the complaint. On June 19, 2014, FERC issued an order in another case involving New England Transmission Owners (NETOs), changing its methodology to determine ROE rates for public utilities. The result was a reduction in the NETO's ROE from 11.14% to 10.57%, with a possible further adjustment in either direction based on additional paper hearing submissions. On July 21, 2014, the NETOs filed a Request for Rehearing and Clarification with FERC of the June 19, 2014 order. Among other things, the NETOs assert that the 11.14% is reasonable based on the new methodology. As of June 30, 2014, BGE believes it is probable that BGE's base ROE rate will be subject to the revised methodology and may result in a potential refund to customers of transmission revenue for a maximum fifteen month period. In evaluating FERC's revised methodology, management believes it is reasonably possible no refunds will be required for BGE, and as such, no refund liability has been recorded as of June 30, 2014. If FERC were to order a reduction of BGE's base return on equity to 8.7% as sought in the complaint (while retaining the 50 basis points of any incentives that were credited to the base return on equity for certain new transmission investment), the result would be a refund to customers of approximately $13 million, as well as an estimated ongoing annual reduction in revenues of approximately $10 million. | ||||||||||||||||||||||||||||||
PJM Transmission Rate Design and Operating Agreements (Exelon, ComEd, PECO and BGE). PJM Transmission Rate Design specifies the rates for transmission service charged to customers within PJM. Currently, ComEd, PECO and BGE incur costs based on the existing rate design, which charges customers based on the cost of the existing transmission facilities within their load zone and the cost of new transmission facilities based on those who benefit from those facilities. In April 2007, FERC issued an order concluding that PJM's current rate design for existing facilities is just and reasonable and should not be changed. In the same order, FERC held that the costs of new facilities 500 kV and above should be socialized across the entire PJM footprint and that the costs of new facilities less than 500 kV should be allocated to the customers of the new facilities who caused the need for those facilities. After FERC ultimately denied all requests for rehearing on all issues, several parties filed petitions in the U.S. Court of Appeals for the Seventh Circuit for review of the decision. On August 6, 2009, that court issued its decision affirming FERC's order with regard to the costs of existing facilities but reversing and remanding to FERC for further consideration its decision with regard to the costs of new facilities 500 kV and above. On March 30, 2012, FERC issued an order on remand affirming the cost allocation in its April 2007 order. On March 22, 2013, FERC issued an order denying rehearing and made it clear that the cost allocation at issue concerns only projects approved prior to February 1, 2013. A number of entities have filed appeals of the FERC orders. On June 25, 2014, the U.S. Court of Appeals for the Seventh Circuit issued a decision once again remanding to FERC the cost allocation of new facilities 500 kV and above. ComEd anticipates that all impacts of any rate design changes effective after December 31, 2006, should be recoverable through retail rates and, thus, the rate design changes are not expected to have a material impact on ComEd's results of operations, cash flows or financial position. PECO anticipates that all impacts of any rate design changes should be recoverable through the transmission service charge rider approved in PECO's 2010 electric distribution rate case settlement and, thus, the rate design changes are not expected to have a material impact on PECO's results of operations, cash flows or financial position. To the extent any rate design changes are retroactive to periods prior to January 1, 2011, there may be an impact on PECO's results of operations. BGE anticipates that all impacts of any rate design changes effective after the implementation of its standard offer service programs in Maryland should be recoverable through retail rates and, thus, the rate design changes are not expected to have a material impact on BGE's results of operations, cash flows or financial position. | ||||||||||||||||||||||||||||||
PJM Minimum Offer Price Rule (Exelon and Generation). PJM's capacity market rules include a Minimum Offer Price Rule (MOPR) that is intended to preclude sellers from artificially suppressing the competitive price signals for generation capacity. The FERC orders approving the MOPR were upheld by the United States Court of Appeals for the Third Circuit in February 2014. | ||||||||||||||||||||||||||||||
Exelon continues to work with PJM stakeholders and through the FERC process to implement several proposed changes to the PJM tariff aimed at ensuring that capacity resources (including those with state-sanctioned subsidy contracts and capacity market speculators) cannot inappropriately affect capacity auction prices in PJM. | ||||||||||||||||||||||||||||||
Demand Response Resource Order (Exelon, Generation, ComEd, PECO, BGE). On May 23, 2014, the D.C. Circuit Court issued an opinion vacating the FERC Order No. 745 (“D.C. Circuit Decision”). Order No. 745 established uniform compensation levels for demand response resources that participate in the day ahead and real-time wholesale energy markets. Under Order No. 745, buyers in ISO and RTO markets were required to pay demand response resources the full Locational Marginal Price when the demand response replaced a generation resource and was cost-effective. | ||||||||||||||||||||||||||||||
In addition to invalidating the compensation structure established by Order No. 745, the D.C. Circuit Court, in broad language, explained that demand response is part of the retail market and FERC is restricted from regulating retail markets. The full implication of the D.C. Circuit Decision for both energy and capacity markets regulated by FERC is not yet known and will depend on how FERC and the RTOs and ISOs implement the decision. In addition, on July 7, 2014, FERC and several other parties sought rehearing of the D.C. Circuit Decision. Therefore, FERC will not be required to implement the D.C. Circuit Decision until at the earliest a determination is made on the rehearing request. If rehearing is denied, FERC or other parties will have an opportunity to appeal the decision to the United States Supreme Court. The final outcome of this litigation is therefore not expected for several months. Nonetheless, the final decision and its implementation by FERC and the RTOs and ISOs, could be material to Exelon, Generation, ComEd, PECO and BGE's results of operations and cash flows. | ||||||||||||||||||||||||||||||
Reliability Pricing Model (Exelon, Generation and BGE). PJM's RPM Base Residual Auctions take place approximately 36 months ahead of the scheduled delivery year. The most recent auction for the delivery year ending May 31, 2018 occurred in May 2014. | ||||||||||||||||||||||||||||||
FERC Deficiency Letter Related to New England Capacity Market Results (Exelon and Generation). Each year, ISO New England, Inc. (ISO-NE) files the results of its annual capacity auction at the FERC which is required to include documentation regarding the competitiveness of the auction. Consistent with this requirement, on February 28, 2014, ISO-NE filed the results of its eighth capacity auction (covering the June 1, 2017 through May 30, 2018 delivery period). On June 27, 2014, the FERC issued a letter to ISO-NE noting that ISO-NE's February 28, 2014 filing is deficient and that ISO-NE must file additional information before the FERC can process the filing. ISO-NE has 30 days to file the information and then FERC will determine how to proceed. Exelon cannot predict when the FERC will accept the capacity auction results for filing or what further action FERC may take concerning the results of that auction, but any FERC action could be material to Exelon's expected revenues from the capacity auction. | ||||||||||||||||||||||||||||||
License Renewals (Exelon and Generation). On June 22, 2011, Generation submitted applications to the NRC to extend the operating licenses of Limerick Units 1 and 2 by 20 years. The current operating licenses for Limerick Units 1 and 2 expire in 2024 and 2029, respectively. In June 2012, the United States Court of Appeals for the DC Circuit vacated the NRC's temporary storage rule on the grounds that the NRC should have conducted a more comprehensive environmental review to support the rule. The temporary storage rule (also referred to as the “waste confidence decision”) recognizes that licensees can safely store spent nuclear fuel at nuclear plants for up to 60 years beyond the original and renewed licensed operating life of the plants and that licensing renewal decisions do not require discussion of the environmental impact of spent fuel stored on site. In August 2012, the NRC placed a hold on issuing new or renewed operating licenses that depend on the temporary storage rule until the court's decision is addressed. In September 2012, the NRC directed NRC Staff to revise the temporary storage rule which is now not expected until October 3, 2014. Generation does not expect the NRC to issue license renewals until the end of 2014, at the earliest. | ||||||||||||||||||||||||||||||
On May 29, 2013, Generation submitted applications to the NRC to extend the operating licenses of Byron Units 1 and 2 and Braidwood Units 1 and 2 by 20 years. The current operating licenses for Byron Units 1 and 2 expire in 2024 and 2026, respectively. The current operating licenses for Braidwood Units 1 and 2 expire in 2026 and 2027, respectively. Generation does not expect the NRC to issue license renewals for Byron and Braidwood until 2015 at the earliest. | ||||||||||||||||||||||||||||||
On August 29, 2012 and August 30, 2012, Generation submitted hydroelectric license applications to the FERC for 46-year licenses for the Conowingo Hydroelectric Project (Conowingo) and the Muddy Run Pumped Storage Facility Project (Muddy Run), respectively. | ||||||||||||||||||||||||||||||
Generation is working with stakeholders to resolve water quality licensing issues with the MDE for Conowingo, including: (1) water quality, (2) fish passage and habitat, and (3) sediment. On January 30, 2014, Exelon filed a water quality certification application pursuant to Section 401 of the CWA with MDE for Conowingo, addressing these and other issues, although Generation cannot currently predict the conditions that ultimately may be imposed. Resolution of these issues relating to Conowingo may have a material effect on Generation's results of operations and financial position through an increase in capital expenditures and operating costs. | ||||||||||||||||||||||||||||||
On June 3, 2014, PA DEP issued its water quality certificate for Muddy Run, which is a necessary step in the FERC licensing process and included certain commitments made by Generation. On July 3, 2014, PPL Holtwood, LLC, the owner of the next upstream dam from Muddy Run, filed an appeal of PA DEP's issuance of its water quality certificate. The financial impact associated with these commitments is estimated to be in the range of $25 million to $35 million, and will include both capital expenditures and operating expenses, primarily relating to fish passage and habitat improvement projects. | ||||||||||||||||||||||||||||||
Based on the latest FERC procedural schedule, the FERC licensing process is not expected to be completed prior to the expiration of Muddy Run's current license on August 31, 2014, and the expiration of Conowingo's license on September 1, 2014. However, the stations would continue to operate under annual licenses until FERC takes action on the 46-year license applications. The stations are currently being depreciated over their estimated useful lives, which includes the license renewal period. As of June 30, 2014, $36 million of direct costs associated with licensing efforts have been capitalized. | ||||||||||||||||||||||||||||||
Regulatory Assets and Liabilities (Exelon, ComEd, PECO and BGE) | ||||||||||||||||||||||||||||||
Exelon, ComEd, PECO and BGE each prepare their consolidated financial statements in accordance with the authoritative guidance for accounting for certain types of regulation. Under this guidance, regulatory assets represent incurred costs that have been deferred because of their probable future recovery from customers through regulated rates. Regulatory liabilities represent the excess recovery of costs or accrued credits that have been deferred because it is probable such amounts will be returned to customers through future regulated rates or represent billings in advance of expenditures for approved regulatory programs. | ||||||||||||||||||||||||||||||
The following tables provide information about the regulatory assets and liabilities of Exelon, ComEd, PECO and BGE as of June 30, 2014 and December 31, 2013. For additional information on the specific regulatory assets and liabilities, refer to Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K. | ||||||||||||||||||||||||||||||
30-Jun-14 | Exelon | ComEd | PECO | BGE | ||||||||||||||||||||||||||
Regulatory assets | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | ||||||||||||||||||||||
Pension and other postretirement | ||||||||||||||||||||||||||||||
benefits | $ | 208 | $ | 2,510 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | ||||||||||||||
Deferred income taxes | 13 | 1,495 | 1 | 68 | 0 | 1,358 | 12 | 69 | ||||||||||||||||||||||
AMI programs | 7 | 222 | 7 | 56 | 0 | 72 | 0 | 94 | ||||||||||||||||||||||
Under-recovered distribution service | ||||||||||||||||||||||||||||||
costs | 219 | 220 | 219 | 220 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Debt costs | 10 | 51 | 8 | 49 | 2 | 2 | 1 | 8 | ||||||||||||||||||||||
Fair value of BGE long-term debt (a) | 7 | 198 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Fair value of BGE supply contract (b) | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Severance | 4 | 11 | 0 | 0 | 0 | 0 | 4 | 11 | ||||||||||||||||||||||
Asset retirement obligations | 1 | 110 | 1 | 73 | 0 | 26 | 0 | 11 | ||||||||||||||||||||||
MGP remediation costs | 40 | 196 | 33 | 165 | 6 | 30 | 1 | 1 | ||||||||||||||||||||||
RTO start-up costs | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Under-recovered uncollectible | ||||||||||||||||||||||||||||||
accounts | 0 | 70 | 0 | 70 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Renewable energy | 13 | 121 | 13 | 121 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Energy and transmission programs | 17 | 4 | 12 | 0 | 0 | 0 | 5 | (f) | 4 | |||||||||||||||||||||
Deferred storm costs | 3 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | ||||||||||||||||||||||
Electric generation-related | ||||||||||||||||||||||||||||||
regulatory asset | 13 | 24 | 0 | 0 | 0 | 0 | 13 | 24 | ||||||||||||||||||||||
Rate stabilization deferral | 73 | 119 | 0 | 0 | 0 | 0 | 73 | 119 | ||||||||||||||||||||||
Energy efficiency and demand | ||||||||||||||||||||||||||||||
response programs | 63 | 148 | 0 | 0 | 0 | 0 | 63 | 148 | ||||||||||||||||||||||
Merger integration costs | 2 | 7 | 0 | 0 | 0 | 0 | 2 | 7 | ||||||||||||||||||||||
Conservation voltage reduction | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | ||||||||||||||||||||||
Other | 32 | 37 | 9 | 28 | 21 | 7 | 1 | 1 | ||||||||||||||||||||||
Total regulatory assets | $ | 732 | $ | 5,545 | $ | 304 | $ | 850 | $ | 29 | $ | 1,495 | $ | 178 | $ | 499 | ||||||||||||||
30-Jun-14 | Exelon | ComEd | PECO | BGE | ||||||||||||||||||||||||||
Regulatory liabilities | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | ||||||||||||||||||||||
Other postretirement benefits | $ | 53 | $ | 111 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | ||||||||||||||
Nuclear decommissioning | 0 | 2,917 | 0 | 2,427 | 0 | 490 | 0 | 0 | ||||||||||||||||||||||
Removal costs | 107 | 1,449 | 83 | 1,248 | 0 | 0 | 24 | 201 | ||||||||||||||||||||||
Energy efficiency and demand | ||||||||||||||||||||||||||||||
response programs | 14 | 2 | 14 | 0 | 0 | 2 | 0 | 0 | ||||||||||||||||||||||
DLC Program Costs | 1 | 9 | 0 | 0 | 1 | 9 | 0 | 0 | ||||||||||||||||||||||
Energy efficiency Phase 2 | 0 | 32 | 0 | 0 | 0 | 32 | 0 | 0 | ||||||||||||||||||||||
Electric distribution tax repairs | 20 | 104 | 0 | 0 | 20 | 104 | 0 | 0 | ||||||||||||||||||||||
Gas distribution tax repairs | 8 | 34 | 0 | 0 | 8 | 34 | 0 | 0 | ||||||||||||||||||||||
Energy and transmission programs | 89 | 11 | 19 | 11 | 52 | (c) | 0 | 18 | (f) | 0 | ||||||||||||||||||||
Over-recovered gas and electric | ||||||||||||||||||||||||||||||
universal service fund costs | 5 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | ||||||||||||||||||||||
Revenue subject to refund (d) | 47 | 0 | 47 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Over-recovered gas and electric | ||||||||||||||||||||||||||||||
revenue decoupling (e) | 21 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | ||||||||||||||||||||||
Other | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | ||||||||||||||||||||||
Total regulatory liabilities | $ | 368 | $ | 4,670 | $ | 164 | $ | 3,686 | $ | 88 | $ | 671 | $ | 63 | $ | 202 | ||||||||||||||
31-Dec-13 | Exelon | ComEd | PECO | BGE | ||||||||||||||||||||||||||
Regulatory assets | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | ||||||||||||||||||||||
Pension and other postretirement | ||||||||||||||||||||||||||||||
benefits | $ | 221 | $ | 2,794 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | ||||||||||||||
Deferred income taxes | 10 | 1,459 | 2 | 65 | 0 | 1,317 | 8 | 77 | ||||||||||||||||||||||
AMI programs | 5 | 159 | 5 | 35 | 0 | 58 | 0 | 66 | ||||||||||||||||||||||
AMI meter events | 0 | 5 | 0 | 0 | 0 | 5 | 0 | 0 | ||||||||||||||||||||||
Under-recovered distribution service | ||||||||||||||||||||||||||||||
costs | 178 | 285 | 178 | 285 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Debt costs | 12 | 56 | 9 | 53 | 3 | 3 | 1 | 8 | ||||||||||||||||||||||
Fair value of BGE long-term debt (a) | 0 | 219 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Fair value of BGE supply contract (b) | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Severance | 16 | 12 | 12 | 0 | 0 | 0 | 4 | 12 | ||||||||||||||||||||||
Asset retirement obligations | 1 | 102 | 1 | 67 | 0 | 25 | 0 | 10 | ||||||||||||||||||||||
MGP remediation costs | 40 | 212 | 33 | 178 | 6 | 33 | 1 | 1 | ||||||||||||||||||||||
RTO start-up costs | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Under-recovered uncollectible | ||||||||||||||||||||||||||||||
accounts | 0 | 48 | 0 | 48 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Renewable energy | 17 | 176 | 17 | 176 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Energy and transmission programs | 53 | 0 | 52 | 0 | 0 | 0 | 1 | (f) | 0 | |||||||||||||||||||||
Deferred storm costs | 3 | 3 | 0 | 0 | 0 | 0 | 3 | 3 | ||||||||||||||||||||||
Electric generation-related | ||||||||||||||||||||||||||||||
regulatory asset | 13 | 30 | 0 | 0 | 0 | 0 | 13 | 30 | ||||||||||||||||||||||
Rate stabilization deferral | 71 | 154 | 0 | 0 | 0 | 0 | 71 | 154 | ||||||||||||||||||||||
Energy efficiency and demand | ||||||||||||||||||||||||||||||
response programs | 73 | 148 | 0 | 0 | 0 | 0 | 73 | 148 | ||||||||||||||||||||||
Merger integration costs | 2 | 9 | 0 | 0 | 0 | 0 | 2 | 9 | ||||||||||||||||||||||
Other | 31 | 39 | 18 | 26 | 8 | 7 | 4 | 6 | ||||||||||||||||||||||
Total regulatory assets | $ | 760 | $ | 5,910 | $ | 329 | $ | 933 | $ | 17 | $ | 1,448 | $ | 181 | $ | 524 | ||||||||||||||
31-Dec-13 | Exelon | ComEd | PECO | BGE | ||||||||||||||||||||||||||
Regulatory liabilities | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | ||||||||||||||||||||||
Other postretirement benefits | $ | 2 | $ | 43 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | ||||||||||||||
Nuclear decommissioning | 0 | 2,740 | 0 | 2,293 | 0 | 447 | 0 | 0 | ||||||||||||||||||||||
Removal costs | 99 | 1,423 | 78 | 1,219 | 0 | 0 | 21 | 204 | ||||||||||||||||||||||
Energy efficiency and demand | ||||||||||||||||||||||||||||||
response programs | 53 | 0 | 45 | 0 | 8 | 0 | 0 | 0 | ||||||||||||||||||||||
DLC Program Costs | 1 | 10 | 0 | 0 | 1 | 10 | 0 | 0 | ||||||||||||||||||||||
Energy efficiency phase II | 0 | 21 | 0 | 0 | 0 | 21 | 0 | 0 | ||||||||||||||||||||||
Electric distribution tax repairs | 20 | 114 | 0 | 0 | 20 | 114 | 0 | 0 | ||||||||||||||||||||||
Gas distribution tax repairs | 8 | 37 | 0 | 0 | 8 | 37 | ||||||||||||||||||||||||
Energy and transmission programs | 78 | 0 | 9 | 0 | 58 | (c) | 0 | 11 | (f) | 0 | ||||||||||||||||||||
Over-recovered gas and electric | ||||||||||||||||||||||||||||||
universal service fund costs | 8 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | ||||||||||||||||||||||
Revenue subject to refund (d) | 38 | 0 | 38 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
Over-recovered electric and gas | ||||||||||||||||||||||||||||||
revenue decoupling (e) | 16 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | ||||||||||||||||||||||
Other | 4 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | ||||||||||||||||||||||
Total regulatory liabilities | $ | 327 | $ | 4,388 | $ | 170 | $ | 3,512 | $ | 106 | $ | 629 | $ | 48 | $ | 204 | ||||||||||||||
Represents the regulatory asset recorded at Exelon Corporate for the difference in the fair value of the long-term debt of BGE as of the merger date. The asset is amortized over the life of the underlying debt. See Note 10 – Debt and Credit Agreements for additional information. | ||||||||||||||||||||||||||||||
Represents the regulatory asset recorded at Exelon Corporate representing the fair value of BGE's supply contracts as of the close of the merger date. BGE is allowed full recovery of the costs of its electric and gas supply contracts through approved, regulated rates. The asset is amortized over a period of approximately 3 years. | ||||||||||||||||||||||||||||||
Includes $26 million related to the DSP program, $19 million related to the over-recovered natural gas costs under the PGC and $7 million related to over-recovered electric transmission costs as of June 30, 2014. As of December 31, 2013, includes $34 million related to the DSP program, $8 million related to the over-recovered electric transmission costs and $16 million related to the over-recovered natural gas costs under the PGC. | ||||||||||||||||||||||||||||||
Primarily represents the regulatory liability for revenue subject to refund recorded pursuant to the ICC's order in the 2007 Rate Case. See Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K for further information. | ||||||||||||||||||||||||||||||
Represents the electric and gas distribution costs recoverable from customers under BGE's decoupling mechanism. As of June 30, 2014, BGE had a regulatory liability of $3 million related to over-recovered electric revenue decoupling and $18 million related to over-recovered natural gas revenue decoupling. As of December 31, 2013, BGE had a regulatory liability of $7 million related to over-recovered electric revenue decoupling and $9 million related to over-recovered natural gas revenue decoupling. | ||||||||||||||||||||||||||||||
Relates to $1 million of under-recovered electric supply costs, $4 million associated with the transmission formula rate and $18 million of over-recovered natural gas supply costs as of June 30, 2014. As of December 31, 2013, includes $1 million of under-recovered electric supply costs, $0 million associated with the transmission formula rate and $11 million of over-recovered natural gas supply costs. | ||||||||||||||||||||||||||||||
Purchase of Receivables Programs (Exelon, ComEd, PECO, and BGE) | ||||||||||||||||||||||||||||||
ComEd, PECO and BGE are required, under separate legislation and regulations in Illinois, Pennsylvania and Maryland, respectively, to purchase certain receivables from retail electric and natural gas suppliers. For retail suppliers participating in the utilities' consolidated billing, ComEd, PECO and BGE must purchase their customer accounts receivables. ComEd and BGE purchase receivables at a discount to primarily recover uncollectible accounts expense from the suppliers. PECO is required to purchase receivables at face value and permitted to recover uncollectible accounts expense from customers through distribution rates. Exelon, ComEd, PECO and BGE do not record unbilled commodity receivables under the POR programs. Purchased billed receivables are classified in Other accounts receivable, net on Exelon's, ComEd's, PECO's and BGE's Consolidated Balance Sheets. The following tables provide information about the purchased receivables of the Registrants as of June 30, 2014 and December 31, 2013. | ||||||||||||||||||||||||||||||
As of June 30, 2014 | Exelon | ComEd | PECO | BGE | ||||||||||||||||||||||||||
Purchased receivables (a) | $ | 270 | $ | 116 | $ | 75 | $ | 79 | ||||||||||||||||||||||
Allowance for uncollectible accounts (b) | -32 | -17 | -8 | -7 | ||||||||||||||||||||||||||
Purchased receivables, net | $ | 238 | $ | 99 | $ | 67 | $ | 72 | ||||||||||||||||||||||
As of December 31, 2013 | Exelon | ComEd | PECO | BGE | ||||||||||||||||||||||||||
Purchased receivables (a) | $ | 263 | $ | 105 | $ | 72 | $ | 86 | ||||||||||||||||||||||
Allowance for uncollectible accounts (b) | -30 | -16 | -7 | -7 | ||||||||||||||||||||||||||
Purchased receivables, net | $ | 233 | $ | 89 | $ | 65 | $ | 79 | ||||||||||||||||||||||
__________ | ||||||||||||||||||||||||||||||
(a) PECO's gas POR program became effective on January 1, 2012 and includes a 1% discount on purchased receivables in order to recover the implementation costs of the program. If the costs are not fully recovered when PECO files its next gas distribution rate case, PECO will propose a mechanism to recover the remaining implementation costs as a distribution charge to low volume transportation customers or apply future discounts on purchased receivables from natural gas suppliers serving those customers. | ||||||||||||||||||||||||||||||
(b) For ComEd and BGE, reflects the incremental allowance for uncollectible accounts recorded, which is in addition to the purchase discount. For ComEd, the incremental uncollectible accounts expense is recovered through its Purchase of Receivables with Consolidated Billing (PORCB) tariff. | ||||||||||||||||||||||||||||||
[1] | Primarily represents the regulatory liability for revenue subject to refund recorded pursuant to the ICCbs order in the 2007 Rate Case. See Note 3 b Regulatory Matters of the Exelon 2013 Form 10-K for further information. |
Investment_in_Constellation_En
Investment in Constellation Energy Nuclear Group, LLC (Exelon and Generation) | 6 Months Ended | ||||||
Jun. 30, 2014 | |||||||
Equity Method Investments and Joint Ventures [Line Items] | ' | ||||||
Investment in Constellation Energy Nuclear Group, LLC (Exelon and Generation) | ' | ||||||
6. Investment in Constellation Energy Nuclear Group, LLC (Exelon and Generation) | |||||||
As a result of the Constellation merger, Generation owns a 50.01% interest in CENG, a nuclear generation business. Generation has historically had various agreements with CENG to purchase power and to provide certain services. For further information regarding these agreements, see Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K. | |||||||
On April 1, 2014, Generation and subsidiaries of Generation, EDF, EDF, Inc. (EDFI) (a subsidiary of EDF) and CENG entered into a Nuclear Operating Services Agreement (NOSA) pursuant to which Generation will operate the CENG nuclear generation fleet owned by CENG subsidiaries and provide corporate and administrative services for the remaining life of the CENG nuclear plants as if they were a part of the Generation nuclear fleet, subject to EDFI's rights as a member of CENG (the Integration Transaction). CENG will reimburse Generation for its direct and allocated costs for such services. As part of the arrangement, Nine Mile Point Nuclear Station, LLC, a subsidiary of CENG, also assigned to Generation its obligations as Operator of Nine Mile Point Unit 2 under an operating agreement with the co-owner. In addition, on April 1, 2014, the Power Services Agency Agreement (PSAA) was amended and extended until the permanent cessation of power generation by the CENG generation plants. | |||||||
In addition, on April 1, 2014, Generation made a $400 million loan to CENG, bearing interest at 5.25% per annum and payable out of specified available cash flows of CENG and, in any event, payable upon the settlement of the Put Option Agreement discussed below (if the put option is exercised) or payable upon the maturity date of April 1, 2034, whichever occurs first. Immediately following receipt of the proceeds of such loan, CENG made a $400 million special distribution to EDFI. | |||||||
The parties also executed a Fourth Amended and Restated Operating Agreement for CENG on April 1, 2014, pursuant to which, among other things, CENG committed to make preferred distributions to Generation (after repayment of the $400 million loan and associated interest) quarterly out of specified available cash flows until Generation has received aggregate distributions of $400 million plus a return of 8.5% per annum from April 1, 2014 (Preferred Distribution Rights). | |||||||
Generation and EDFI also entered into a Put Option Agreement on April 1, 2014, pursuant to which EDFI has the option, exercisable beginning on January 1, 2016 and thereafter until June 30, 2022, to sell its 49.99% interest in CENG to Generation for a fair market value price determined by agreement of the parties, or absent agreement, a third-party arbitration process. The appraisers determining fair market value of EDF's 49.99% interest in CENG under the Put Option Agreement are instructed to take into account all rights and obligations under the CENG Operating Agreement, including Generation's rights with respect to any unpaid aggregate preferred distributions and the related return, and the value of Generation's rights to other distributions. The beginning of the exercise period will be accelerated if Exelon's affiliates cease to own a majority of CENG and exercise a related right to terminate the NOSA. In addition, under limited circumstances, the period for exercise of the put option may be extended for 18 months. | |||||||
On April 1, 2014, Generation also executed an Indemnity Agreement pursuant to which Generation indemnified EDF and its affiliates against third-party claims that may arise from any future nuclear incident (as defined in the Price Anderson Act) in connection with the CENG nuclear plants or their operations. Exelon guarantees Generation's obligations under this indemnity. | |||||||
In addition, on April 1, 2014, Generation, EDFI, CENG and Nine Mile Point Nuclear Station, LLC entered into an Employee Matters Agreement (EMA) that provides for the transfer of CENG employees to Generation or one of its affiliates (the Generation Parties) and the assumption of the employee benefit plans and their related trusts by Exelon as the plan sponsor as of July 14, 2014. The EMA also generally requires CENG to fund the underfunded balance of the pension and other postretirement welfare benefit plans measured as of July 14, 2014 by making periodic payments to Generation. These payments will be made on an agreed payment schedule or upon the occurrence of certain specified events, such as EDF's disposition of a majority of its interest in CENG. | |||||||
As a condition to obtaining regulatory approval for the NOSA and related transactions from the NRC, Exelon executed a support agreement pursuant to which Exelon may be required under specified circumstances to provide up to $245 million of financial support to CENG (Exelon Support Agreement). The Exelon Support Agreement supersedes a previous support agreement under which Generation had agreed to provide up to $205 million of financial support for CENG. In addition, Exelon executed a Guarantee pursuant to which Exelon may be required under specified circumstances to provide up to $165 million in additional financial support for CENG. A previous support agreement executed by an affiliate of EDF remains in effect under which the EDF affiliate may be required to provide up to approximately $145 million of financial support for CENG under specified circumstances. The agreements were executed on April 1, 2014 when the NRC licenses were transferred to Generation. No liability has been recognized by Exelon for the guarantees. | |||||||
Prior to April 1, 2014, Exelon and Generation accounted for their investment in CENG under the equity method of accounting. From January 1, 2014, through March 31, 2014, Generation recorded $19 million of equity in losses of unconsolidated affiliates related to its investment in CENG and recorded $17 million of revenues from CENG. For the three and six months ended June 30, 2013, Generation recorded $19 million and $31 million, respectively, of equity in losses of unconsolidated affiliates related to its investment in CENG and $23 million and $34 million, respectively, of revenues from CENG. The book value of Generation's investment in CENG prior to the consolidation was $1.9 billion, and the book value of the AOCI related to CENG prior to consolidation was $116 million, net of taxes of $77 million. | |||||||
As a result of the consolidation of CENG, there are several transactions included in Exelon's and Generation's Consolidated Financial Statements between CENG and EDF that are considered related party transactions to Generation. As further described in Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K, EDF and Generation have a PPA with CENG under which they purchase 15% and 85%, respectively, of the nuclear output owned by CENG that is not sold to third parties under pre-existing PPAs. Beginning January 1, 2015 and continuing through the life of the respective plants, EDF and Generation will purchase 49.99% and 50.01%, respectively, of the nuclear output owned by CENG. Beginning April 1, 2014, sales to Generation are eliminated in consolidation. Sales to EDF of $38 million are included within Exelon's and Generation's Consolidated Statements of Operations for the three and six months ended June 30, 2014. See discussion above and Note 3 – Variable Interest Entities for additional information regarding other related party transactions, between CENG and EDF included within Exelon and Generation's financial statements. | |||||||
See Note 3 – Variable Interest Entities for additional information about the Registrants VIEs. | |||||||
Accounting for the Consolidation of CENG | |||||||
The transfer of the nuclear operating licenses and the execution of the NOSA on April 1, 2014, resulted in the derecognition of the equity method investment in CENG and the recording of all assets, liabilities and EDF's non-controlling interest in CENG at fair value on Exelon's and Generation's Consolidated Balance Sheets. As a result of the consolidation, Exelon and Generation recorded a net gain of $261 million within their respective Consolidated Statements of Operations and Comprehensive Income. This gain consists of approximately $136 million related to the step up to fair value basis of our ownership interest in CENG, and approximately $132 million related to the settlement of pre-existing transactions between CENG and Generation. The net gain on the consolidation of CENG of $261 million is net of a $7 million payment to EDF. | |||||||
The fair value of CENG's assets and liabilities recorded in consolidation was determined based on significant estimates and assumptions that are judgmental in nature, including projected future cash flows (including timing); discount rates reflecting risk inherent in the future cash flows; and future market prices. There were also judgments made to determine the expected useful lives assigned to each class of assets acquired and duration of liabilities assumed. | |||||||
The valuations necessary to assess the fair values of certain assets and liabilities are considered preliminary as a result of the short time period between the execution of the NOSA and the end of the second quarter of 2014. The estimates of the fair value of assets and liabilities may be modified up to one year from April 1, 2014, as more information is obtained about the fair value of assets and liabilities. The principal items that are expected to be revised include the asset retirement obligation liabilities and related asset retirement costs. These items are expected to be updated with inputs from a third party engineering firm with corresponding adjustments recorded by the end of 2014. In the period of such revisions, these and any other material changes to the fair value assessments could result in adjustments to the amounts recorded upon consolidation, including the overall gain recorded by Generation. In addition, any asset or liability adjustments impacting depreciation and/or accretion expense recorded after the consolidation date would impact Generation's post-consolidation results of operations. | |||||||
Generation recorded the assets and liabilities of CENG at fair value as of April 1, 2014. The following assets and liabilities of CENG were recorded within Generation's Consolidated Balance Sheets as of the date of integration: | |||||||
Preliminary Fair Values | Exelon and Generation | ||||||
Current assets | $ | 499 | |||||
Nuclear decommissioning trust fund | 1,955 | ||||||
Property, plant and equipment | 2,958 | ||||||
Nuclear fuel | 482 | ||||||
Other assets | 10 | ||||||
Total assets | 5,904 | ||||||
Current liabilities | 237 | ||||||
Asset retirement obligation | 1,701 | ||||||
Pension and other employee benefit obligations | 281 | ||||||
Unamortized energy contract liabilities | 171 | ||||||
Other liabilities | 114 | ||||||
Total liabilities | 2,504 | ||||||
Total net assets | $ | 3,400 | |||||
Preliminary Fair Values | Exelon and Generation | ||||||
Current assets | $ | 499 | |||||
Nuclear decommissioning trust fund | 1,955 | ||||||
Property, plant and equipment | 2,958 | ||||||
Nuclear fuel | 482 | ||||||
Other assets | 10 | ||||||
Total assets | 5,904 | ||||||
Current liabilities | 237 | ||||||
Asset retirement obligation | 1,701 | ||||||
Pension and other employee benefit obligations | 281 | ||||||
Unamortized energy contract liabilities | 171 | ||||||
Other liabilities | 114 | ||||||
Total liabilities | 2,504 | ||||||
Total net assets | $ | 3,400 | |||||
Three Months | Three Months | ||||||
Ended March 31, | Ended March 31, | ||||||
2014 | 2013 | ||||||
Equity investment income | $ | -2 | $ | 15 | |||
Amortization of basis difference in CENG | -17 | -27 | |||||
Total equity in earnings - CENG | $ | -19 | $ | -12 | |||
The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions. | |||||||
Exelon Generation Co L L C [Member] | ' | ||||||
Equity Method Investments and Joint Ventures [Line Items] | ' | ||||||
Investment in Constellation Energy Nuclear Group, LLC (Exelon and Generation) | ' | ||||||
6. Investment in Constellation Energy Nuclear Group, LLC (Exelon and Generation) | |||||||
As a result of the Constellation merger, Generation owns a 50.01% interest in CENG, a nuclear generation business. Generation has historically had various agreements with CENG to purchase power and to provide certain services. For further information regarding these agreements, see Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K. | |||||||
On April 1, 2014, Generation and subsidiaries of Generation, EDF, EDF, Inc. (EDFI) (a subsidiary of EDF) and CENG entered into a Nuclear Operating Services Agreement (NOSA) pursuant to which Generation will operate the CENG nuclear generation fleet owned by CENG subsidiaries and provide corporate and administrative services for the remaining life of the CENG nuclear plants as if they were a part of the Generation nuclear fleet, subject to EDFI's rights as a member of CENG (the Integration Transaction). CENG will reimburse Generation for its direct and allocated costs for such services. As part of the arrangement, Nine Mile Point Nuclear Station, LLC, a subsidiary of CENG, also assigned to Generation its obligations as Operator of Nine Mile Point Unit 2 under an operating agreement with the co-owner. In addition, on April 1, 2014, the Power Services Agency Agreement (PSAA) was amended and extended until the permanent cessation of power generation by the CENG generation plants. | |||||||
In addition, on April 1, 2014, Generation made a $400 million loan to CENG, bearing interest at 5.25% per annum and payable out of specified available cash flows of CENG and, in any event, payable upon the settlement of the Put Option Agreement discussed below (if the put option is exercised) or payable upon the maturity date of April 1, 2034, whichever occurs first. Immediately following receipt of the proceeds of such loan, CENG made a $400 million special distribution to EDFI. | |||||||
The parties also executed a Fourth Amended and Restated Operating Agreement for CENG on April 1, 2014, pursuant to which, among other things, CENG committed to make preferred distributions to Generation (after repayment of the $400 million loan and associated interest) quarterly out of specified available cash flows until Generation has received aggregate distributions of $400 million plus a return of 8.5% per annum from April 1, 2014 (Preferred Distribution Rights). | |||||||
Generation and EDFI also entered into a Put Option Agreement on April 1, 2014, pursuant to which EDFI has the option, exercisable beginning on January 1, 2016 and thereafter until June 30, 2022, to sell its 49.99% interest in CENG to Generation for a fair market value price determined by agreement of the parties, or absent agreement, a third-party arbitration process. The appraisers determining fair market value of EDF's 49.99% interest in CENG under the Put Option Agreement are instructed to take into account all rights and obligations under the CENG Operating Agreement, including Generation's rights with respect to any unpaid aggregate preferred distributions and the related return, and the value of Generation's rights to other distributions. The beginning of the exercise period will be accelerated if Exelon's affiliates cease to own a majority of CENG and exercise a related right to terminate the NOSA. In addition, under limited circumstances, the period for exercise of the put option may be extended for 18 months. | |||||||
On April 1, 2014, Generation also executed an Indemnity Agreement pursuant to which Generation indemnified EDF and its affiliates against third-party claims that may arise from any future nuclear incident (as defined in the Price Anderson Act) in connection with the CENG nuclear plants or their operations. Exelon guarantees Generation's obligations under this indemnity. | |||||||
In addition, on April 1, 2014, Generation, EDFI, CENG and Nine Mile Point Nuclear Station, LLC entered into an Employee Matters Agreement (EMA) that provides for the transfer of CENG employees to Generation or one of its affiliates (the Generation Parties) and the assumption of the employee benefit plans and their related trusts by Exelon as the plan sponsor as of July 14, 2014. The EMA also generally requires CENG to fund the underfunded balance of the pension and other postretirement welfare benefit plans measured as of July 14, 2014 by making periodic payments to Generation. These payments will be made on an agreed payment schedule or upon the occurrence of certain specified events, such as EDF's disposition of a majority of its interest in CENG. | |||||||
As a condition to obtaining regulatory approval for the NOSA and related transactions from the NRC, Exelon executed a support agreement pursuant to which Exelon may be required under specified circumstances to provide up to $245 million of financial support to CENG (Exelon Support Agreement). The Exelon Support Agreement supersedes a previous support agreement under which Generation had agreed to provide up to $205 million of financial support for CENG. In addition, Exelon executed a Guarantee pursuant to which Exelon may be required under specified circumstances to provide up to $165 million in additional financial support for CENG. A previous support agreement executed by an affiliate of EDF remains in effect under which the EDF affiliate may be required to provide up to approximately $145 million of financial support for CENG under specified circumstances. The agreements were executed on April 1, 2014 when the NRC licenses were transferred to Generation. No liability has been recognized by Exelon for the guarantees. | |||||||
Prior to April 1, 2014, Exelon and Generation accounted for their investment in CENG under the equity method of accounting. From January 1, 2014, through March 31, 2014, Generation recorded $19 million of equity in losses of unconsolidated affiliates related to its investment in CENG and recorded $17 million of revenues from CENG. For the three and six months ended June 30, 2013, Generation recorded $19 million and $31 million, respectively, of equity in losses of unconsolidated affiliates related to its investment in CENG and $23 million and $34 million, respectively, of revenues from CENG. The book value of Generation's investment in CENG prior to the consolidation was $1.9 billion, and the book value of the AOCI related to CENG prior to consolidation was $116 million, net of taxes of $77 million. | |||||||
As a result of the consolidation of CENG, there are several transactions included in Exelon's and Generation's Consolidated Financial Statements between CENG and EDF that are considered related party transactions to Generation. As further described in Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K, EDF and Generation have a PPA with CENG under which they purchase 15% and 85%, respectively, of the nuclear output owned by CENG that is not sold to third parties under pre-existing PPAs. Beginning January 1, 2015 and continuing through the life of the respective plants, EDF and Generation will purchase 49.99% and 50.01%, respectively, of the nuclear output owned by CENG. Beginning April 1, 2014, sales to Generation are eliminated in consolidation. Sales to EDF of $38 million are included within Exelon's and Generation's Consolidated Statements of Operations for the three and six months ended June 30, 2014. See discussion above and Note 3 – Variable Interest Entities for additional information regarding other related party transactions, between CENG and EDF included within Exelon and Generation's financial statements. | |||||||
See Note 3 – Variable Interest Entities for additional information about the Registrants VIEs. | |||||||
Accounting for the Consolidation of CENG | |||||||
The transfer of the nuclear operating licenses and the execution of the NOSA on April 1, 2014, resulted in the derecognition of the equity method investment in CENG and the recording of all assets, liabilities and EDF's non-controlling interest in CENG at fair value on Exelon's and Generation's Consolidated Balance Sheets. As a result of the consolidation, Exelon and Generation recorded a net gain of $261 million within their respective Consolidated Statements of Operations and Comprehensive Income. This gain consists of approximately $136 million related to the step up to fair value basis of our ownership interest in CENG, and approximately $132 million related to the settlement of pre-existing transactions between CENG and Generation. The net gain on the consolidation of CENG of $261 million is net of a $7 million payment to EDF. | |||||||
The fair value of CENG's assets and liabilities recorded in consolidation was determined based on significant estimates and assumptions that are judgmental in nature, including projected future cash flows (including timing); discount rates reflecting risk inherent in the future cash flows; and future market prices. There were also judgments made to determine the expected useful lives assigned to each class of assets acquired and duration of liabilities assumed. | |||||||
The valuations necessary to assess the fair values of certain assets and liabilities are considered preliminary as a result of the short time period between the execution of the NOSA and the end of the second quarter of 2014. The estimates of the fair value of assets and liabilities may be modified up to one year from April 1, 2014, as more information is obtained about the fair value of assets and liabilities. The principal items that are expected to be revised include the asset retirement obligation liabilities and related asset retirement costs. These items are expected to be updated with inputs from a third party engineering firm with corresponding adjustments recorded by the end of 2014. In the period of such revisions, these and any other material changes to the fair value assessments could result in adjustments to the amounts recorded upon consolidation, including the overall gain recorded by Generation. In addition, any asset or liability adjustments impacting depreciation and/or accretion expense recorded after the consolidation date would impact Generation's post-consolidation results of operations. | |||||||
Generation recorded the assets and liabilities of CENG at fair value as of April 1, 2014. The following assets and liabilities of CENG were recorded within Generation's Consolidated Balance Sheets as of the date of integration: | |||||||
Three Months | Three Months | ||||||
Ended March 31, | Ended March 31, | ||||||
2014 | 2013 | ||||||
Equity investment income | $ | -2 | $ | 15 | |||
Amortization of basis difference in CENG | -17 | -27 | |||||
Total equity in earnings - CENG | $ | -19 | $ | -12 |
Impairment_of_Longlived_Assets
Impairment of Long-lived Assets (Exelon and Generation) | 6 Months Ended | |||||
Jun. 30, 2014 | ||||||
Impaired Long-Lived Assets Held and Used [Line Items] | ' | |||||
Impairment Of Long Lived Assets Held [Text Block] | ' | |||||
7. Impairment of Long-Lived Assets (Exelon and Generation) | ||||||
Long-Lived Assets (Exelon and Generation) | ||||||
Generation evaluates long-lived assets for recoverability whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. In the second quarter of 2014, updates to the long-term fundamental energy prices, which included a thorough evaluation of key assumptions including gas prices, load growth, plant retirements and renewable growth, suggested that the carrying value of certain merchant wind assets may be impaired. Generation concluded that the estimated undiscounted future cash flows and fair value of twelve wind projects, primarily located in West Texas, were less than their respective carrying values at May 31, 2014. The fair value analysis was primarily based on the income approach using significant unobservable inputs (Level 3) including revenue and generation forecasts, projected capital and maintenance expenditures and discount rates. As a result, long-lived assets held and used with a carrying amount of approximately $151 million were written down to their fair value of $65 million and a pre-tax impairment charge of $86 million was recorded during the second quarter in Operating and maintenance expense in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. Changes in the assumptions described above could potentially result in future impairments of Exelon's long-lived assets, which could be material. | ||||||
Nuclear Uprate Program (Exelon and Generation) | ||||||
Generation is engaged in individual projects as part of a planned power uprate program across its nuclear fleet. When economically viable, the projects take advantage of new production and measurement technologies, new materials and application of expertise gained from a half-century of nuclear power operations. Based on ongoing reviews, the nuclear uprate implementation plan was adjusted in both the first and second quarters of 2013 to cancel certain projects. During the first quarter of 2013, the Measurement Uncertainty Recapture (MUR) uprate projects at the Dresden and Quad Cities nuclear stations were cancelled as a result of the cost of additional plant modifications identified during final design work which, when combined with then current market conditions, made the projects not economically viable. For these cancelled projects, Generation recorded approximately $21 million to Operating and maintenance expense during the first quarter of 2013 to accrue remaining costs and reverse previously capitalized costs. During the second quarter of 2013, market conditions prompted Generation to cancel the previously deferred extended power uprate projects at the LaSalle and Limerick nuclear stations. For these cancelled projects, Generation recorded a pre-tax charge during the second quarter of 2013 to Operating and maintenance expense and Interest expense of approximately $92 million and $8 million, respectively, to accrue remaining costs and reverse the previously capitalized costs. | ||||||
Like-Kind Exchange Transaction (Exelon) | ||||||
Prior to the PECO/Unicom Merger in October 2000, UII, LLC (formerly Unicom Investments, Inc.) (UII), a wholly owned subsidiary of Exelon, entered into a like-kind exchange transaction pursuant to which approximately $1.6 billion was invested in coal-fired generating station leases located in Georgia and Texas with two separate entities unrelated to Exelon. The generating stations were leased back to such entities as part of the transaction. See Note 11 – Income Taxes for further information. For financial accounting purposes, the investments are accounted for as direct financing lease investments. UII holds the leasehold interests in the generating stations in several separate bankruptcy remote, special purpose companies it directly or indirectly wholly owns. The lease agreements provide the lessees with fixed purchase options at the end of the lease terms. If the lessees do not exercise the fixed purchase options, Exelon has the ability to operate the stations and keep or market the power itself or require the lessees to arrange for a third-party to bid on a service contract for a period following the lease term. In any event, Exelon will be subject to residual value risk if the lessees do not exercise the fixed purchase options. This risk is partially mitigated by the fair value of the scheduled payments under the service contract. However, such payments are not guaranteed. Further, the term of the service contract is less than the expected remaining useful life of the plants and, therefore, Exelon's exposure to residual value risk will not be mitigated by payments under the service contract in this remaining period. In the fourth quarter of 2000, under the terms of the lease agreements, UII received a prepayment of $1.2 billion for all rent, which reduced the investment in the leases. There are no minimum scheduled lease payments to be received over the remaining term of the leases. | ||||||
On February 26, 2014, UII and the City Public Service Board of San Antonio, Texas (CPS) finalized an agreement to terminate the leases on the generating station located in Texas, as described above, prior to its expiration dates. As a result of the lease termination, UII received a net early termination amount of $335 million from CPS and wrote off the net investment in the CPS long-term lease of $336 million in Investments in the Consolidated Balance Sheet in the first quarter of 2014; resulting in a pre-tax loss of $1 million being reflected in Operating and maintenance expense in the Consolidated Statement of Operations and Comprehensive Income in the first quarter of 2014. | ||||||
Pursuant to the applicable accounting guidance, Exelon is required to review the estimated residual values of its direct financing lease investments at least annually and record an impairment charge if the review indicates an other than temporary decline in the fair value of the residual values below their carrying values. Exelon estimates the fair value of the residual values of its direct financing lease investments under the income approach, which uses a discounted cash flow analysis, which takes into consideration significant unobservable inputs (Level 3) including the expected revenues to be generated and costs to be incurred to operate the plants over their remaining useful lives subsequent to the lease end dates. Significant assumptions used in estimating the fair value include fundamental energy and capacity prices, fixed and variable costs, capital expenditure requirements, discount rates, tax rates, and the estimated remaining useful lives of the plants. The estimated fair values also reflect the cash flows associated with the service contract option discussed above given that a market participant would take into consideration all of the terms and conditions contained in the lease agreements. | ||||||
Based on the annual reviews performed in the second quarter 2014 and 2013, the estimated residual value of Exelon's direct financing leases for the Georgia generating stations experienced other than temporary declines given reduced long-term energy and capacity price expectations. As a result, Exelon recorded a $24 million and $14 million pre-tax impairment charge in the second quarter of 2014 and 2013, respectively, for these stations. These impairment charges were recorded in Investments and Operating and maintenance expense in Exelon's Consolidated Balance Sheet and the Consolidated Statement of Operations and Comprehensive Income, respectively. Changes in the assumptions described above could potentially result in future impairments of Exelon's direct financing lease investments, which could be material. | ||||||
At June 30, 2014 and December 31, 2013, the components of the net investment in long-term leases were as follows: | ||||||
30-Jun-14 | 31-Dec-13 | |||||
Estimated residual value of leased assets | $ | 685 | $ | 1,465 | ||
Less: unearned income | 332 | 767 | ||||
Net investment in long-term leases | $ | 353 | $ | 698 | ||
Exelon Generation Co L L C [Member] | ' | |||||
Impaired Long-Lived Assets Held and Used [Line Items] | ' | |||||
Impairment Of Long Lived Assets Held [Text Block] | ' | |||||
7. Impairment of Long-Lived Assets (Exelon and Generation) | ||||||
Long-Lived Assets (Exelon and Generation) | ||||||
Generation evaluates long-lived assets for recoverability whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. In the second quarter of 2014, updates to the long-term fundamental energy prices, which included a thorough evaluation of key assumptions including gas prices, load growth, plant retirements and renewable growth, suggested that the carrying value of certain merchant wind assets may be impaired. Generation concluded that the estimated undiscounted future cash flows and fair value of twelve wind projects, primarily located in West Texas, were less than their respective carrying values at May 31, 2014. The fair value analysis was primarily based on the income approach using significant unobservable inputs (Level 3) including revenue and generation forecasts, projected capital and maintenance expenditures and discount rates. As a result, long-lived assets held and used with a carrying amount of approximately $151 million were written down to their fair value of $65 million and a pre-tax impairment charge of $86 million was recorded during the second quarter in Operating and maintenance expense in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. Changes in the assumptions described above could potentially result in future impairments of Exelon's long-lived assets, which could be material. | ||||||
Nuclear Uprate Program (Exelon and Generation) | ||||||
Generation is engaged in individual projects as part of a planned power uprate program across its nuclear fleet. When economically viable, the projects take advantage of new production and measurement technologies, new materials and application of expertise gained from a half-century of nuclear power operations. Based on ongoing reviews, the nuclear uprate implementation plan was adjusted in both the first and second quarters of 2013 to cancel certain projects. During the first quarter of 2013, the Measurement Uncertainty Recapture (MUR) uprate projects at the Dresden and Quad Cities nuclear stations were cancelled as a result of the cost of additional plant modifications identified during final design work which, when combined with then current market conditions, made the projects not economically viable. For these cancelled projects, Generation recorded approximately $21 million to Operating and maintenance expense during the first quarter of 2013 to accrue remaining costs and reverse previously capitalized costs. During the second quarter of 2013, market conditions prompted Generation to cancel the previously deferred extended power uprate projects at the LaSalle and Limerick nuclear stations. For these cancelled projects, Generation recorded a pre-tax charge during the second quarter of 2013 to Operating and maintenance expense and Interest expense of approximately $92 million and $8 million, respectively, to accrue remaining costs and reverse the previously capitalized costs. | ||||||
Like-Kind Exchange Transaction (Exelon) | ||||||
Prior to the PECO/Unicom Merger in October 2000, UII, LLC (formerly Unicom Investments, Inc.) (UII), a wholly owned subsidiary of Exelon, entered into a like-kind exchange transaction pursuant to which approximately $1.6 billion was invested in coal-fired generating station leases located in Georgia and Texas with two separate entities unrelated to Exelon. The generating stations were leased back to such entities as part of the transaction. See Note 11 – Income Taxes for further information. For financial accounting purposes, the investments are accounted for as direct financing lease investments. UII holds the leasehold interests in the generating stations in several separate bankruptcy remote, special purpose companies it directly or indirectly wholly owns. The lease agreements provide the lessees with fixed purchase options at the end of the lease terms. If the lessees do not exercise the fixed purchase options, Exelon has the ability to operate the stations and keep or market the power itself or require the lessees to arrange for a third-party to bid on a service contract for a period following the lease term. In any event, Exelon will be subject to residual value risk if the lessees do not exercise the fixed purchase options. This risk is partially mitigated by the fair value of the scheduled payments under the service contract. However, such payments are not guaranteed. Further, the term of the service contract is less than the expected remaining useful life of the plants and, therefore, Exelon's exposure to residual value risk will not be mitigated by payments under the service contract in this remaining period. In the fourth quarter of 2000, under the terms of the lease agreements, UII received a prepayment of $1.2 billion for all rent, which reduced the investment in the leases. There are no minimum scheduled lease payments to be received over the remaining term of the leases. | ||||||
On February 26, 2014, UII and the City Public Service Board of San Antonio, Texas (CPS) finalized an agreement to terminate the leases on the generating station located in Texas, as described above, prior to its expiration dates. As a result of the lease termination, UII received a net early termination amount of $335 million from CPS and wrote off the net investment in the CPS long-term lease of $336 million in Investments in the Consolidated Balance Sheet in the first quarter of 2014; resulting in a pre-tax loss of $1 million being reflected in Operating and maintenance expense in the Consolidated Statement of Operations and Comprehensive Income in the first quarter of 2014. | ||||||
Pursuant to the applicable accounting guidance, Exelon is required to review the estimated residual values of its direct financing lease investments at least annually and record an impairment charge if the review indicates an other than temporary decline in the fair value of the residual values below their carrying values. Exelon estimates the fair value of the residual values of its direct financing lease investments under the income approach, which uses a discounted cash flow analysis, which takes into consideration significant unobservable inputs (Level 3) including the expected revenues to be generated and costs to be incurred to operate the plants over their remaining useful lives subsequent to the lease end dates. Significant assumptions used in estimating the fair value include fundamental energy and capacity prices, fixed and variable costs, capital expenditure requirements, discount rates, tax rates, and the estimated remaining useful lives of the plants. The estimated fair values also reflect the cash flows associated with the service contract option discussed above given that a market participant would take into consideration all of the terms and conditions contained in the lease agreements. | ||||||
Based on the annual reviews performed in the second quarter 2014 and 2013, the estimated residual value of Exelon's direct financing leases for the Georgia generating stations experienced other than temporary declines given reduced long-term energy and capacity price expectations. As a result, Exelon recorded a $24 million and $14 million pre-tax impairment charge in the second quarter of 2014 and 2013, respectively, for these stations. These impairment charges were recorded in Investments and Operating and maintenance expense in Exelon's Consolidated Balance Sheet and the Consolidated Statement of Operations and Comprehensive Income, respectively. Changes in the assumptions described above could potentially result in future impairments of Exelon's direct financing lease investments, which could be material. | ||||||
At June 30, 2014 and December 31, 2013, the components of the net investment in long-term leases were as follows: | ||||||
Fair_Value_of_Financial_Assets
Fair Value of Financial Assets and Liabilities (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||
Fair Value of Financial Assets and Liabilities [Line items] | ' | ||||||||||||||||||
Fair Value Disclosures [Text Block] | ' | ||||||||||||||||||
8. Fair Value of Financial Assets and Liabilities (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||||
Fair Value of Financial Liabilities Recorded at the Carrying Amount | |||||||||||||||||||
The following tables present the carrying amounts and fair values of the Registrants' short-term liabilities, long-term debt, SNF obligation, and trust preferred securities (long-term debt to financing trusts or junior subordinated debentures) as of June 30, 2014 and December 31, 2013: | |||||||||||||||||||
Exelon | |||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 624 | $ | 3 | $ | 621 | $ | 0 | $ | 624 | |||||||||
Long-term debt (including amounts due within one year) | 20,180 | 1,150 | 19,373 | 1,135 | 21,658 | ||||||||||||||
Long-term debt to financing trusts | 648 | 0 | 0 | 668 | 668 | ||||||||||||||
SNF obligation | 1,021 | 0 | 814 | 0 | 814 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 344 | $ | 3 | $ | 341 | $ | 0 | $ | 344 | |||||||||
Long-term debt (including amounts due within one year) | 19,132 | 0 | 18,672 | 1,079 | 19,751 | ||||||||||||||
Long-term debt to financing trusts | 648 | 0 | 0 | 631 | 631 | ||||||||||||||
SNF obligation | 1,021 | 0 | 790 | 0 | 790 | ||||||||||||||
Generation | |||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 53 | $ | 0 | $ | 53 | $ | 0 | $ | 53 | |||||||||
Long-term debt (including amounts due within one year) | 7,507 | 0 | 6,881 | 1,135 | 8,016 | ||||||||||||||
SNF obligation | 1,021 | 0 | 814 | 0 | 814 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 22 | $ | 0 | $ | 22 | $ | 0 | $ | 22 | |||||||||
Long-term debt (including amounts due within one year) | 7,729 | 0 | 6,586 | 1,062 | 7,648 | ||||||||||||||
SNF obligation | 1,021 | 0 | 790 | 0 | 790 | ||||||||||||||
ComEd | |||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 498 | $ | 0 | $ | 498 | $ | 0 | $ | 498 | |||||||||
Long-term debt (including amounts due within one year) | 5,708 | 0 | 6,452 | 0 | 6,452 | ||||||||||||||
Long-term debt to financing trust | 206 | 0 | 0 | 211 | 211 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 184 | $ | 0 | $ | 184 | $ | 0 | $ | 184 | |||||||||
Long-term debt (including amounts due within one year) | 5,675 | 0 | 6,238 | 17 | 6,255 | ||||||||||||||
Long-term debt to financing trust | 206 | 0 | 0 | 202 | 202 | ||||||||||||||
PECO | |||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Long-term debt (including amounts due within one year) | $ | 2,197 | $ | 0 | $ | 2,436 | $ | 0 | $ | 2,436 | |||||||||
Long-term debt to financing trusts | 184 | 0 | 0 | 198 | 198 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Long-term debt (including amounts due within one year) | $ | 2,197 | $ | 0 | $ | 2,358 | $ | 0 | $ | 2,358 | |||||||||
Long-term debt to financing trusts | 184 | 0 | 0 | 180 | 180 | ||||||||||||||
BGE | |||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 73 | $ | 3 | $ | 70 | $ | 0 | $ | 73 | |||||||||
Long-term debt (including amounts due within one year) | 1,976 | 0 | 2,206 | 0 | 2,206 | ||||||||||||||
Long-term debt to financing trusts | 258 | 0 | 0 | 259 | 259 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 138 | $ | 3 | $ | 135 | $ | 0 | $ | 138 | |||||||||
Long-term debt (including amounts due within one year) | 2,011 | 0 | 2,148 | 0 | 2,148 | ||||||||||||||
Long-term debt to financing trusts | 258 | 0 | 0 | 249 | 249 | ||||||||||||||
Short-Term Liabilities. The short-term liabilities included in the tables above are comprised of short-term borrowings (Level 2) and dividends payable (included in other current liabilities) (Level 1). The Registrants' carrying amounts of the short-term liabilities are representative of fair value because of the short-term nature of these instruments. | |||||||||||||||||||
Long-Term Debt. The fair value amounts of Exelon's taxable debt securities (Level 2) are determined by a valuation model that is based on a conventional discounted cash flow methodology and utilizes assumptions of current market pricing curves. In order to incorporate the credit risk of the Registrants into the discount rates, Exelon obtains pricing (i.e., U.S. Treasury rate plus credit spread) based on trades of existing Exelon debt securities as well as debt securities of other issuers in the electric utility sector with similar credit ratings in both the primary and secondary market, across the Registrants' debt maturity spectrum. The credit spreads of various tenors obtained from this information are added to the appropriate benchmark U.S. Treasury rates in order to determine the current market yields for the various tenors. The yields are then converted into discount rates of various tenors that are used for discounting the respective cash flows of the same tenor for each bond or note. | |||||||||||||||||||
The fair value of Generation's non-government-backed fixed rate project financing debt (Level 3) is based on market and quoted prices for its own and other project financing debt with similar risk profiles. Given the low trading volume in the project financing debt market, the price quotes used to determine fair value will reflect certain qualitative factors, such as market conditions, investor demand, new developments that might significantly impact the project cash flows or off-taker credit, and other circumstances related to the project (e.g., political and regulatory environment). The fair value of Generation's government-backed fixed rate project financing debt (Level 3) is largely based on a discounted cash flow methodology that is similar to the taxable debt securities methodology described above. Due to the lack of market trading data on similar debt, the discount rates are derived based on the original loan interest rate spread to the applicable Treasury rate as well as a current market curve derived from government-backed securities. Variable rate project financing debt resets on a quarterly basis and the carrying value approximates fair value. | |||||||||||||||||||
SNF Obligation. The carrying amount of Generation's SNF obligation (Level 2) is derived from a contract with the DOE to provide for disposal of SNF from Generation's nuclear generating stations. When determining the fair value of the obligation, the future carrying amount of the SNF obligation estimated to be settled in 2025 is calculated by compounding the current book value of the SNF obligation at the 13-week Treasury rate. The compounded obligation amount is discounted back to present value using Generation's discount rate, which is calculated using the same methodology as described above for the taxable debt securities, and an estimated maturity date of 2025. | |||||||||||||||||||
Long-Term Debt to Financing Trusts. Exelon's long-term debt to financing trusts is valued based on publicly traded securities issued by the financing trusts. Due to low trading volume of these securities, qualitative factors, such as market conditions, investor demand, and circumstances related to each issue, this debt is classified as Level 3. | |||||||||||||||||||
Recurring Fair Value Measurements | |||||||||||||||||||
Exelon records the fair value of assets and liabilities in accordance with the hierarchy established by the authoritative guidance for fair value measurements. The hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows: | |||||||||||||||||||
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Registrants have the ability to access as of the reporting date. Financial assets and liabilities utilizing Level 1 inputs include active exchange-traded corporate units, equity securities and funds, certain exchange-based derivatives, and money market funds. | |||||||||||||||||||
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. Financial assets and liabilities utilizing Level 2 inputs include fixed income securities, derivatives, commingled and mutual investment funds priced at NAV per fund share and fair value hedges. | |||||||||||||||||||
Level 3 — unobservable inputs, such as internally developed pricing models or third-party valuations for the asset or liability due to little or no market activity for the asset or liability. Financial assets and liabilities utilizing Level 3 inputs include infrequently traded securities and derivatives, and investments priced using an alternative pricing mechanism or third party valuation. | |||||||||||||||||||
Transfers in and out of levels are recognized as of the end of the reporting period the transfer occurred. Given derivatives categorized within Level 1 are valued using exchange-based quoted prices within observable periods, transfers between Level 2 and Level 1 were not material. Transfers into Level 2 from Level 3 generally occur when the contract tenure becomes more observable. Transfers into Level 3 from Level 2 generally occur due to changes in market liquidity or assumptions for certain commodity contracts. There were no transfers between Level 1 and Level 2 during the six months ended June 30, 2014 for cash equivalents, nuclear decommissioning trust fund investments, pledged assets for Zion Station decommissioning, Rabbi trust investments, and deferred compensation obligations. | |||||||||||||||||||
Exelon | |||||||||||||||||||
The following tables present assets and liabilities measured and recorded at fair value on Exelon's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of June 30, 2014 and December 31, 2013: | |||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 1,034 | $ | 0 | $ | 0 | $ | 1,034 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 151 | 66 | 0 | 217 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 2,572 | 0 | 0 | 2,572 | |||||||||||||||
Exchange traded funds | 164 | 0 | 0 | 164 | |||||||||||||||
Commingled funds | 0 | 2,529 | 0 | 2,529 | |||||||||||||||
Equity funds subtotal | 2,736 | 2,529 | 0 | 5,265 | |||||||||||||||
Balanced funds - commingled funds | 0 | 273 | 0 | 273 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 990 | 0 | 0 | 990 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 416 | 0 | 416 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 114 | 0 | 114 | |||||||||||||||
Corporate debt securities | 0 | 2,059 | 181 | 2,240 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 84 | 0 | 84 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 43 | 0 | 43 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 3 | 0 | 3 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Commingled funds | 0 | 325 | 0 | 325 | |||||||||||||||
Fixed income subtotal | 990 | 3,062 | 181 | 4,233 | |||||||||||||||
Middle market lending | 0 | 0 | 376 | 376 | |||||||||||||||
Private Equity | 0 | 0 | 35 | 35 | |||||||||||||||
Other debt obligations | 0 | 24 | 0 | 24 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,877 | 5,954 | 592 | 10,423 | |||||||||||||||
Pledged assets for Zion Station decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 45 | 0 | 45 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 4 | 2 | 0 | 6 | |||||||||||||||
Equity funds subtotal | 4 | 2 | 0 | 6 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 12 | 3 | 0 | 15 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 19 | 0 | 19 | |||||||||||||||
Corporate debt securities | 0 | 172 | 0 | 172 | |||||||||||||||
Commingled funds | 0 | 5 | 0 | 5 | |||||||||||||||
Fixed income subtotal | 12 | 199 | 0 | 211 | |||||||||||||||
Middle market lending | 0 | 0 | 133 | 133 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 16 | 246 | 133 | 395 | |||||||||||||||
Rabbi trust investments(e) | |||||||||||||||||||
Cash equivalents | 2 | 0 | 0 | 2 | |||||||||||||||
Mutual funds(d) | 43 | 0 | 0 | 43 | |||||||||||||||
Rabbi trust investments subtotal | 45 | 0 | 0 | 45 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 434 | 2,969 | 1,413 | 4,816 | |||||||||||||||
Proprietary trading | 178 | 712 | 184 | 1,074 | |||||||||||||||
Effect of netting and allocation of collateral(f) | -569 | -3,119 | -1,127 | -4,815 | |||||||||||||||
Commodity derivative assets subtotal | 43 | 562 | 470 | 1,075 | |||||||||||||||
Interest rate and foreign currency derivative assets | 24 | 40 | 0 | 64 | |||||||||||||||
Effect of netting and allocation of collateral | -21 | -7 | 0 | -28 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 3 | 33 | 0 | 36 | |||||||||||||||
Other investments | 13 | 0 | 10 | 23 | |||||||||||||||
Total assets | 5,031 | 6,795 | 1,205 | 13,031 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -434 | -2,803 | -1,465 | -4,702 | |||||||||||||||
Proprietary trading | -182 | -707 | -176 | -1,065 | |||||||||||||||
Effect of netting and allocation of collateral(f) | 618 | 3,408 | 1,279 | 5,305 | |||||||||||||||
Commodity derivative liabilities subtotal | 2 | -102 | -362 | -462 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | -24 | -34 | 0 | -58 | |||||||||||||||
Effect of netting and allocation of collateral | 24 | 6 | 0 | 30 | |||||||||||||||
Interest rate and foreign currency derivative liabilities subtotal | 0 | -28 | 0 | -28 | |||||||||||||||
Deferred compensation obligation | 0 | -104 | 0 | -104 | |||||||||||||||
Total liabilities | 2 | -234 | -362 | -594 | |||||||||||||||
Total net assets | $ | 5,033 | $ | 6,561 | $ | 843 | $ | 12,437 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 1,230 | $ | 0 | $ | 0 | $ | 1,230 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 459 | 0 | 0 | 459 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 1,776 | 0 | 0 | 1,776 | |||||||||||||||
Exchange traded funds | 115 | 0 | 0 | 115 | |||||||||||||||
Commingled funds | 0 | 2,271 | 0 | 2,271 | |||||||||||||||
Equity funds subtotal | 1,891 | 2,271 | 0 | 4,162 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 882 | 0 | 0 | 882 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 294 | 0 | 294 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 87 | 0 | 87 | |||||||||||||||
Corporate debt securities | 0 | 1,753 | 31 | 1,784 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 10 | 0 | 10 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 40 | 0 | 40 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 7 | 0 | 7 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Fixed income subtotal | 882 | 2,209 | 31 | 3,122 | |||||||||||||||
Middle market lending | 0 | 0 | 314 | 314 | |||||||||||||||
Private Equity | 0 | 0 | 5 | 5 | |||||||||||||||
Other debt obligations | 0 | 14 | 0 | 14 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,232 | 4,494 | 350 | 8,076 | |||||||||||||||
Pledged assets for Zion decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 26 | 0 | 26 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 16 | 0 | 0 | 16 | |||||||||||||||
Equity funds subtotal | 16 | 0 | 0 | 16 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 45 | 4 | 0 | 49 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 20 | 0 | 20 | |||||||||||||||
Corporate debt securities | 0 | 227 | 0 | 227 | |||||||||||||||
Fixed income subtotal | 45 | 251 | 0 | 296 | |||||||||||||||
Middle market lending | 0 | 0 | 112 | 112 | |||||||||||||||
Other debt obligations | 0 | 1 | 0 | 1 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 61 | 278 | 112 | 451 | |||||||||||||||
Rabbi trust investments(e) | |||||||||||||||||||
Cash equivalents | 2 | 0 | 0 | 2 | |||||||||||||||
Mutual funds(d) | 54 | 0 | 0 | 54 | |||||||||||||||
Rabbi trust investments subtotal | 56 | 0 | 0 | 56 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 493 | 2,582 | 885 | 3,960 | |||||||||||||||
Proprietary trading | 324 | 1,315 | 122 | 1,761 | |||||||||||||||
Effect of netting and allocation of collateral(f) | -863 | -3,131 | -430 | -4,424 | |||||||||||||||
Commodity derivative assets subtotal | -46 | 766 | 577 | 1,297 | |||||||||||||||
Interest rate and foreign currency derivative assets | 30 | 39 | 0 | 69 | |||||||||||||||
Effect of netting and allocation of collateral | -30 | -2 | 0 | -32 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 0 | 37 | 0 | 37 | |||||||||||||||
Other Investments | 0 | 0 | 15 | 15 | |||||||||||||||
Total assets | 4,533 | 5,575 | 1,054 | 11,162 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -540 | -1,890 | -590 | -3,020 | |||||||||||||||
Proprietary trading | -328 | -1,256 | -119 | -1,703 | |||||||||||||||
Effect of netting and allocation of collateral(f) | 869 | 3,007 | 404 | 4,280 | |||||||||||||||
Commodity derivative liabilities subtotal | 1 | -139 | -305 | -443 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | -31 | -17 | 0 | -48 | |||||||||||||||
Effect of netting and allocation of collateral | 31 | 1 | 0 | 32 | |||||||||||||||
Interest rate and foreign currency derivative liabilities subtotal | 0 | -16 | 0 | -16 | |||||||||||||||
Deferred compensation obligation | 0 | -114 | 0 | -114 | |||||||||||||||
Total liabilities | 1 | -269 | -305 | -573 | |||||||||||||||
Total net assets | $ | 4,534 | $ | 5,306 | $ | 749 | $ | 10,589 | |||||||||||
(a) Excludes certain cash equivalents considered to be held-to-maturity and not reported at fair value. | |||||||||||||||||||
(b) Excludes net assets (liabilities) of $14 million and $(5) million at June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(c) Excludes net assets of $7 million at both June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(d) The mutual funds held by the Rabbi trusts include $42 million related to deferred compensation and $1 million related to Supplemental Executive Retirement Plan at June 30, 2014, and $53 million related to deferred compensation and $1 million related to Supplemental Executive Retirement Plan at December 31, 2013. | |||||||||||||||||||
(e) Excludes $34 million and $32 million of the cash surrender value of life insurance investments at June 30, 2014 and December 31, 2013, respectively. | |||||||||||||||||||
(f) Includes collateral postings to counterparties. Collateral posted to counterparties, net of collateral paid to counterparties, totaled $49 million, $289 million and $152 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of June 30, 2014. Collateral posted (received) from counterparties, net of collateral paid to counterparties, totaled $6 million, $(124) million and $(26) million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2013. | |||||||||||||||||||
The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis during the three and six months ended June 30, 2014 and 2013: | |||||||||||||||||||
Three Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2014 | $ | 486 | $ | 137 | $ | 119 | $ | 10 | $ | 752 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | -48 | (a) | 0 | -46 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 8 | 0 | 34 | 0 | 42 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 0 | 34 | 0 | 34 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 109 | 13 | 5 | 0 | 127 | ||||||||||||||
Sales | -1 | -21 | -4 | 0 | -26 | ||||||||||||||
Settlements | -12 | 0 | 0 | 0 | -12 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -4 | 0 | -4 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -28 | 0 | -28 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 108 | $ | 10 | $ | 843 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the three months ended June 30, 2014 | $ | 2 | $ | 0 | $ | 19 | $ | 0 | $ | 21 | |||||||||
Six Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2013 | $ | 350 | $ | 112 | $ | 272 | $ | 15 | $ | 749 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 3 | 0 | -360 | (a) | 0 | -357 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 11 | 0 | 59 | 0 | 70 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 0 | 178 | 0 | 178 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 249 | 42 | 15 | 2 | 308 | ||||||||||||||
Sales | -2 | -25 | -6 | 0 | -33 | ||||||||||||||
Settlements | -19 | 0 | 0 | 0 | -19 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -30 | 0 | -30 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -20 | -7 | -27 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 108 | $ | 10 | $ | 843 | |||||||||
The amount of total losses included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the nine months ended June 30, 2014 | $ | 2 | $ | 0 | $ | -427 | $ | 0 | $ | -425 | |||||||||
(a) Includes the increase for the reclassification of $67 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three months ended June 30, 2014. | |||||||||||||||||||
Three Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2013 | $ | 210 | $ | 104 | $ | 260 | $ | 9 | $ | 583 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 1 | 0 | 158 | (a) | 0 | 159 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 8 | 0 | -10 | (b) | 0 | -2 | |||||||||||||
Included in payable for Zion Station | |||||||||||||||||||
decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Change in collateral | 0 | 0 | 10 | 0 | 10 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 35 | 11 | 13 | 2 | 61 | ||||||||||||||
Sales | -11 | -5 | -4 | 0 | -20 | ||||||||||||||
Settlements | -3 | 0 | 0 | 0 | -3 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 3 | 0 | 3 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 431 | $ | 11 | $ | 793 | |||||||||
The amount of total losses included in income | |||||||||||||||||||
attributed to the change in unrealized losses related to assets and liabilities held for the three months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 187 | $ | 0 | $ | 188 | |||||||||
Six Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2012 | $ | 183 | $ | 89 | $ | 367 | $ | 17 | $ | 656 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | 31 | (a) | 0 | 33 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 9 | 0 | -18 | (b) | 0 | -9 | |||||||||||||
Included in payable for Zion Station | |||||||||||||||||||
decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Change in collateral | 0 | 0 | 43 | 0 | 43 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 67 | 33 | 8 | (c) | 2 | 110 | |||||||||||||
Sales | -13 | -12 | -8 | -8 | -41 | ||||||||||||||
Settlements | -8 | 0 | 0 | 0 | -8 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 7 | 0 | 7 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 431 | $ | 11 | $ | 793 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the six months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 108 | $ | 0 | $ | 109 | |||||||||
(a) Includes the reclassification of $29 million and $77 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2013, respectively. | |||||||||||||||||||
(b) Excludes decreases in fair value of $3 million and $11 million and realized losses reclassified due to settlements of $82 million and $215 million associated with Generation's financial swap contract with ComEd for the three and six months ended June 30, 2013. All items eliminate upon consolidation in Exelon's Consolidated Financial Statements. | |||||||||||||||||||
(c) Includes $10 million which Generation was paid to enter into out of the money purchase contracts. | |||||||||||||||||||
The following tables present the income statement classification of the total realized and unrealized gains (losses) included in income for Level 3 assets and liabilities measured at fair value on a recurring basis during the six months ended June 30, 2014 and 2013: | |||||||||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains (losses) included in income for the three months ended | |||||||||||||||||||
30-Jun-14 | $ | -62 | $ | 14 | $ | 2 | |||||||||||||
Total gains (losses) included in income for the six months ended | |||||||||||||||||||
30-Jun-14 | $ | -330 | $ | -30 | $ | 3 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the three months ended June 30, 2014 | $ | -10 | $ | 29 | $ | 2 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the six months ended June 30, 2014 | $ | -435 | $ | 8 | $ | 2 | |||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains included in income for the three months | |||||||||||||||||||
ended June 30, 2013 | $ | 137 | $ | 21 | $ | 1 | |||||||||||||
Total gains (losses) included in income for the six months ended | |||||||||||||||||||
30-Jun-13 | $ | -22 | $ | 53 | $ | 2 | |||||||||||||
Change in the unrealized gains relating to assets and | |||||||||||||||||||
liabilities held for the three months ended June 30, 2013 | $ | 156 | $ | 31 | $ | 1 | |||||||||||||
Change in the unrealized gains relating to assets and | |||||||||||||||||||
liabilities held for the six months ended June 30, 2013 | $ | 39 | $ | 69 | $ | 1 | |||||||||||||
(a) Other, net activity consists of realized and unrealized gains (losses) included in income for the NDT funds held by Generation. | |||||||||||||||||||
Generation | |||||||||||||||||||
The following tables present assets and liabilities measured and recorded at fair value on Generation's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of June 30, 2014 and December 31, 2013: | |||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 65 | $ | 0 | $ | 0 | $ | 65 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 151 | 66 | 0 | 217 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 2,572 | 0 | 0 | 2,572 | |||||||||||||||
Exchange traded funds | 164 | 0 | 0 | 164 | |||||||||||||||
Commingled funds | 0 | 2,529 | 0 | 2,529 | |||||||||||||||
Equity funds subtotal | 2,736 | 2,529 | 0 | 5,265 | |||||||||||||||
Balanced funds - commingled funds | 0 | 273 | 0 | 273 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 990 | 0 | 0 | 990 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 416 | 0 | 416 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 114 | 0 | 114 | |||||||||||||||
Corporate debt securities | 0 | 2,059 | 181 | 2,240 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 84 | 0 | 84 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 43 | 0 | 43 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 3 | 0 | 3 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Commingled funds | 0 | 325 | 0 | 325 | |||||||||||||||
Fixed income subtotal | 990 | 3,062 | 181 | 4,233 | |||||||||||||||
Middle market lending | 0 | 0 | 376 | 376 | |||||||||||||||
Private Equity | 0 | 0 | 35 | 35 | |||||||||||||||
Other debt obligations | 0 | 24 | 0 | 24 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,877 | 5,954 | 592 | 10,423 | |||||||||||||||
Pledged assets for Zion Station decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 45 | 0 | 45 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 4 | 2 | 0 | 6 | |||||||||||||||
Equity funds subtotal | 4 | 2 | 0 | 6 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 12 | 3 | 0 | 15 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 19 | 0 | 19 | |||||||||||||||
Corporate debt securities | 0 | 172 | 0 | 172 | |||||||||||||||
Commingled funds | 0 | 5 | 0 | 5 | |||||||||||||||
Fixed income subtotal | 12 | 199 | 0 | 211 | |||||||||||||||
Middle market lending | 0 | 0 | 133 | 133 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 16 | 246 | 133 | 395 | |||||||||||||||
Rabbi trust investments(d) | |||||||||||||||||||
Cash equivalents | 1 | 0 | 0 | 1 | |||||||||||||||
Mutual funds | 14 | 0 | 0 | 14 | |||||||||||||||
Rabbi trust investments subtotal | 15 | 0 | 0 | 15 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 434 | 2,969 | 1,413 | 4,816 | |||||||||||||||
Proprietary trading | 178 | 712 | 184 | 1,074 | |||||||||||||||
Effect of netting and allocation of collateral(e) | -569 | -3,119 | -1,127 | -4,815 | |||||||||||||||
Commodity derivative assets subtotal | 43 | 562 | 470 | 1,075 | |||||||||||||||
Interest rate and foreign currency derivative assets | 24 | 22 | 0 | 46 | |||||||||||||||
Effect of netting and allocation of collateral | -21 | -7 | 0 | -28 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 3 | 15 | 0 | 18 | |||||||||||||||
Other investments | 13 | 0 | 10 | 23 | |||||||||||||||
Total assets | 4,032 | 6,777 | 1,205 | 12,014 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -434 | -2,803 | -1,331 | -4,568 | |||||||||||||||
Proprietary trading | -182 | -707 | -176 | -1,065 | |||||||||||||||
Effect of netting and allocation of collateral(e) | 618 | 3,408 | 1,279 | 5,305 | |||||||||||||||
Commodity derivative liabilities subtotal | 2 | -102 | -228 | -328 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | -24 | -28 | 0 | -52 | |||||||||||||||
Effect of netting and allocation of collateral | 24 | 6 | 0 | 30 | |||||||||||||||
Interest rate and foreign currency derivative liabilities subtotal | 0 | -22 | 0 | -22 | |||||||||||||||
Deferred compensation obligation | 0 | -29 | 0 | -29 | |||||||||||||||
Total liabilities | 2 | -153 | -228 | -379 | |||||||||||||||
Total net assets | $ | 4,034 | $ | 6,624 | $ | 977 | $ | 11,635 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 1,006 | $ | 0 | $ | 0 | $ | 1,006 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 459 | 0 | 0 | 459 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 1,776 | 0 | 0 | 1,776 | |||||||||||||||
Exchange traded funds | 115 | 0 | 0 | 115 | |||||||||||||||
Commingled funds | 0 | 2,271 | 0 | 2,271 | |||||||||||||||
Equity funds subtotal | 1,891 | 2,271 | 0 | 4,162 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 882 | 0 | 0 | 882 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 294 | 0 | 294 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 87 | 0 | 87 | |||||||||||||||
Corporate debt securities | 0 | 1,753 | 31 | 1,784 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 10 | 0 | 10 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 40 | 0 | 40 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 7 | 0 | 7 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Fixed income subtotal | 882 | 2,209 | 31 | 3,122 | |||||||||||||||
Middle market lending | 0 | 0 | 314 | 314 | |||||||||||||||
Private Equity | 0 | 0 | 5 | 5 | |||||||||||||||
Other debt obligations | 0 | 14 | 0 | 14 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,232 | 4,494 | 350 | 8,076 | |||||||||||||||
Pledged assets for Zion Station decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 26 | 0 | 26 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 16 | 0 | 0 | 16 | |||||||||||||||
Equity funds subtotal | 16 | 0 | 0 | 16 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 45 | 4 | 0 | 49 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 20 | 0 | 20 | |||||||||||||||
Corporate debt securities | 0 | 227 | 0 | 227 | |||||||||||||||
Fixed income subtotal | 45 | 251 | 0 | 296 | |||||||||||||||
Middle market lending | 0 | 0 | 112 | 112 | |||||||||||||||
Other debt obligations | 0 | 1 | 0 | 1 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 61 | 278 | 112 | 451 | |||||||||||||||
Rabbi trust investments(d) | |||||||||||||||||||
Mutual funds | 13 | 0 | 0 | 13 | |||||||||||||||
Rabbi trust investments subtotal | 13 | 0 | 0 | 13 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 493 | 2,582 | 885 | 3,960 | |||||||||||||||
Proprietary trading | 324 | 1,315 | 122 | 1,761 | |||||||||||||||
Effect of netting and allocation of collateral(e) | -863 | -3,131 | -430 | -4,424 | |||||||||||||||
Commodity and foreign currency assets subtotal | -46 | 766 | 577 | 1,297 | |||||||||||||||
Interest rate and foreign currency derivative assets | 30 | 32 | 0 | 62 | |||||||||||||||
Effect of netting and allocation of collateral | -30 | -2 | 0 | -32 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 0 | 30 | 0 | 30 | |||||||||||||||
Other investments | 0 | 0 | 15 | 15 | |||||||||||||||
Total assets | 4,266 | 5,568 | 1,054 | 10,888 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -540 | -1,890 | -397 | -2,827 | |||||||||||||||
Proprietary trading | -328 | -1,256 | -119 | -1,703 | |||||||||||||||
Effect of netting and allocation of collateral(e) | 869 | 3,007 | 404 | 4,280 | |||||||||||||||
Commodity derivative liabilities subtotal | 1 | -139 | -112 | -250 | |||||||||||||||
Interest rate derivative liabilities | -31 | -13 | 0 | -44 | |||||||||||||||
Effect of netting and allocation of collateral | 31 | 1 | 0 | 32 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | 0 | -12 | 0 | -12 | |||||||||||||||
Deferred compensation obligation | 0 | -29 | 0 | -29 | |||||||||||||||
Total liabilities | 1 | -180 | -112 | -291 | |||||||||||||||
Total net assets | $ | 4,267 | $ | 5,388 | $ | 942 | $ | 10,597 | |||||||||||
(a) Excludes certain cash equivalents considered to be held-to-maturity and not reported at fair value. | |||||||||||||||||||
(b) Excludes net assets (liabilities) of $14 million and $(5) million at June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(c) Excludes net assets of $7 million at both June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(d) Excludes $10 million of the cash surrender value of life insurance investments at both June 30, 2014 and December 31, 2013. | |||||||||||||||||||
(e) Includes collateral postings to counterparties. Collateral posted to counterparties, net of collateral paid to counterparties, totaled $49 million, $289 million and $152 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of June 30, 2014. Collateral posted (received) from counterparties, net of collateral paid to counterparties, totaled $6 million, $(124) million and $(26) million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2013. | |||||||||||||||||||
The following tables present the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis during the three and six months ended June 30, 2014 and 2013: | |||||||||||||||||||
Three Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2014 | $ | 486 | $ | 137 | $ | 287 | $ | 10 | $ | 920 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | -48 | (a) | 0 | -46 | |||||||||||||
Included in noncurrent payables to affiliates | 8 | 0 | 0 | 0 | 8 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 0 | 34 | 0 | 34 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 109 | 13 | 5 | 0 | 127 | ||||||||||||||
Sales | -1 | -21 | -4 | 0 | -26 | ||||||||||||||
Settlements | -12 | 0 | 0 | 0 | -12 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -4 | 0 | -4 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -28 | 0 | -28 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 242 | $ | 10 | $ | 977 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the three months ended June 30, 2014 | $ | 2 | $ | 0 | $ | 19 | $ | 0 | $ | 21 | |||||||||
Six Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2013 | $ | 350 | $ | 112 | $ | 465 | $ | 15 | $ | 942 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 3 | 0 | -360 | (a) | 0 | -357 | |||||||||||||
Included in noncurrent payables to affiliates | 11 | 0 | 0 | 0 | 11 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 178 | 0 | 178 | |||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 249 | 42 | 15 | 2 | 308 | ||||||||||||||
Sales | -2 | -25 | -6 | 0 | -33 | ||||||||||||||
Settlements | -19 | 0 | 0 | 0 | -19 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -30 | 0 | -30 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -20 | -7 | -27 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 242 | $ | 10 | $ | 977 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the six months ended June 30, 2014 | $ | 2 | $ | 0 | $ | -427 | $ | 0 | $ | -425 | |||||||||
(a) Includes an increase for the reclassification of $67 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2014, respectively. | |||||||||||||||||||
Three Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2013 | $ | 210 | $ | 104 | $ | 420 | $ | 9 | $ | 743 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 1 | 0 | 168 | (a)(b) | 0 | 169 | |||||||||||||
Included in other comprehensive income | 0 | 0 | -95 | (b) | 0 | -95 | |||||||||||||
Included in noncurrent payables to affiliates | 8 | 0 | 0 | 0 | 8 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Changes in collateral | 0 | 0 | 10 | 0 | 10 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 35 | 11 | 13 | 2 | 61 | ||||||||||||||
Sales | -11 | -5 | -4 | 0 | -20 | ||||||||||||||
Settlements | -3 | 0 | 0 | 0 | -3 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 3 | 0 | 3 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 516 | $ | 11 | $ | 878 | |||||||||
The amount of total losses included in income | |||||||||||||||||||
attributed to the change in unrealized losses related to assets and liabilities held for the three months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 183 | $ | 0 | $ | 184 | |||||||||
Six Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2012 | $ | 183 | $ | 89 | $ | 660 | $ | 17 | $ | 949 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | 24 | (a)(b) | 0 | 26 | |||||||||||||
Included in other comprehensive income | 0 | 0 | -219 | (b) | 0 | -219 | |||||||||||||
Included in noncurrent payables to affiliates | 9 | 0 | 0 | 9 | |||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Changes in collateral | 0 | 0 | 43 | 0 | 43 | ||||||||||||||
Purchases, sales, issuances and settlements | 0 | ||||||||||||||||||
Purchases | 67 | 33 | 8 | (c) | 2 | 110 | |||||||||||||
Sales | -13 | -12 | -8 | -8 | -41 | ||||||||||||||
Settlements | -8 | 0 | 0 | 0 | -8 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 7 | 0 | 7 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 516 | $ | 11 | $ | 878 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the six months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 97 | $ | 0 | $ | 98 | |||||||||
(a) Includes the reclassification of $15 million and $73 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2013, respectively. | |||||||||||||||||||
(b) Includes $3 million of decreases in fair value and $11 million of increases in fair value and realized losses due to settlements of $82 million and $215 million associated with Generation's financial swap contract with ComEd for the three and six months ended June 30, 2013, respectively. This position eliminates upon consolidation in Exelon's Consolidated Financial Statements. | |||||||||||||||||||
(c) Includes $10 million which Generation was paid to enter into out of the money purchase contracts. | |||||||||||||||||||
The following tables present the income statement classification of the total realized and unrealized gains (losses) included in income for Level 3 assets and liabilities measured at fair value on a recurring basis during the six months ended June 30, 2014 and 2013: | |||||||||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains (losses) included in net income for the three months | $ | -62 | $ | 14 | $ | 2 | |||||||||||||
ended June 30, 2014 | |||||||||||||||||||
Total losses included in net income for the six months | |||||||||||||||||||
ended June 30, 2014 | $ | -330 | $ | -30 | $ | 3 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the three months ended June 30, 2014 | $ | -10 | $ | 29 | $ | 2 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the six months ended June 30, 2014 | $ | -435 | $ | 8 | $ | 2 | |||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains included in net income for the three months | $ | 148 | $ | 20 | $ | 1 | |||||||||||||
ended June 30, 2013 | |||||||||||||||||||
Total gains (losses) included in net income for the six months | $ | -28 | $ | 52 | $ | 2 | |||||||||||||
ended June 30, 2013 | |||||||||||||||||||
Change in the unrealized gains relating to assets and | $ | 153 | $ | 30 | $ | 1 | |||||||||||||
liabilities held for the three months ended June 30, 2013 | |||||||||||||||||||
Change in the unrealized gains relating to assets and | $ | 29 | $ | 68 | $ | 1 | |||||||||||||
liabilities held for the nine months ended June 30, 2013 | |||||||||||||||||||
(a) Other, net activity consists of realized and unrealized gains (losses) included in income for the NDT funds held by Generation. | |||||||||||||||||||
ComEd | |||||||||||||||||||
The following tables present assets and liabilities measured and recorded at fair value on ComEd's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of June 30, 2014 and December 31, 2013: | |||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | $ | 1 | $ | 0 | $ | 0 | $ | 1 | |||||||||||
Rabbi trust investments subtotal | 1 | 0 | 0 | 1 | |||||||||||||||
Total assets | $ | 1 | $ | 0 | $ | 0 | $ | 1 | |||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -8 | 0 | -8 | |||||||||||||||
Mark-to-market derivative liabilities(a) | 0 | 0 | -134 | -134 | |||||||||||||||
Total liabilities | 0 | -8 | -134 | -142 | |||||||||||||||
Total net assets (liabilities) | $ | 1 | $ | -8 | $ | -134 | $ | -141 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | $ | 5 | $ | 0 | $ | 0 | $ | 5 | |||||||||||
Rabbi trust investments subtotal | 5 | 0 | 0 | 5 | |||||||||||||||
Total assets | 5 | 0 | 0 | 5 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -8 | 0 | -8 | |||||||||||||||
Mark-to-market derivative liabilities(a) | 0 | 0 | -193 | -193 | |||||||||||||||
Total liabilities | 0 | -8 | -193 | -201 | |||||||||||||||
Total net assets (liabilities) | $ | 5 | $ | -8 | $ | -193 | $ | -196 | |||||||||||
(a) The Level 3 balance includes the current and noncurrent liability of $13 million and $121 million at June 30, 2014, respectively, and $17 million and $176 million at December 31, 2013, respectively, related to floating-to-fixed energy swap contracts with unaffiliated suppliers. | |||||||||||||||||||
The following tables present the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis during the three and six months ended June 30, 2014 and 2013: | |||||||||||||||||||
Three Months Ended June 30, 2014 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of March 31, 2014 | $ | -168 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(a) | 34 | ||||||||||||||||||
Balance as of June 30, 2014 | $ | -134 | |||||||||||||||||
Six Months Ended June 30, 2014 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of December 31, 2013 | $ | -193 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(b) | 59 | ||||||||||||||||||
Balance as of June 30, 2014 | $ | -134 | |||||||||||||||||
Includes $34 million decreases in the fair value partially offset by immaterial realized losses due to settlements recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the three months ended June 30, 2014. | |||||||||||||||||||
Includes $64 million of decreases in the fair value partially offset by realized gains due to settlements of $5 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the six months ended June 30, 2014. | |||||||||||||||||||
Three Months Ended June 30, 2013 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of March 31, 2013 | $ | -160 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(a)(b) | 75 | ||||||||||||||||||
Balance as of June 30, 2013 | $ | -85 | |||||||||||||||||
Six Months Ended June 30, 2013 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of December 31, 2012 | $ | -293 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(a)(b) | 208 | ||||||||||||||||||
Balance as of June 30, 2013 | $ | -85 | |||||||||||||||||
Includes $3 million of increases in fair value and $11 million of decreases in fair value and realized gains due to settlements of $82 million and $215 million of associated with ComEd's financial swap contract with Generation for the three and six months ended June 30, 2013, respectively. All items eliminate upon consolidation in Exelon's Consolidated Financial Statements. | |||||||||||||||||||
Includes $9 million and $20 million of increases in the fair value and realized losses due to settlements of $1 million and $4 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the three and six months ended June 30, 2013, respectively. | |||||||||||||||||||
PECO | |||||||||||||||||||
The following tables present assets and liabilities measured and recorded at fair value on PECO's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of June 30, 2014 and December 31, 2013: | |||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 50 | $ | 0 | $ | 0 | $ | 50 | |||||||||||
Rabbi trust investments(a) | |||||||||||||||||||
Mutual funds | 9 | 0 | 0 | 9 | |||||||||||||||
Rabbi trust investments subtotal | 9 | 0 | 0 | 9 | |||||||||||||||
Total assets | 59 | 0 | 0 | 59 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -15 | 0 | -15 | |||||||||||||||
Total liabilities | 0 | -15 | 0 | -15 | |||||||||||||||
Total net assets (liabilities) | $ | 59 | $ | -15 | $ | 0 | $ | 44 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 175 | $ | 0 | $ | 0 | $ | 175 | |||||||||||
Rabbi trust investments(a) | |||||||||||||||||||
Mutual funds | 9 | 0 | 0 | 9 | |||||||||||||||
Rabbi trust investments subtotal | 9 | 0 | 0 | 9 | |||||||||||||||
Total assets | 184 | 0 | 0 | 184 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -17 | 0 | -17 | |||||||||||||||
Total liabilities | 0 | -17 | 0 | -17 | |||||||||||||||
Total net assets (liabilities) | $ | 184 | $ | -17 | $ | 0 | $ | 167 | |||||||||||
(a) Excludes $14 million of the cash surrender value of life insurance investments at both June 30, 2014 and December 31, 2013. | |||||||||||||||||||
PECO had no Level 3 assets or liabilities measured at fair value on a recurring basis during the six months ended June 30, 2014 and 2013. | |||||||||||||||||||
BGE | |||||||||||||||||||
The following tables present assets and liabilities measured and recorded at fair value on BGE's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of June 30, 2014 and December 31, 2013: | |||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 53 | $ | 0 | $ | 0 | $ | 53 | |||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | 5 | 0 | 0 | 5 | |||||||||||||||
Rabbi trust investments subtotal | 5 | 0 | 0 | 5 | |||||||||||||||
Total assets | 58 | 0 | 0 | 58 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -5 | 0 | -5 | |||||||||||||||
Total liabilities | 0 | -5 | 0 | -5 | |||||||||||||||
Total net assets (liabilities) | $ | 58 | $ | -5 | $ | 0 | $ | 53 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 31 | $ | 0 | $ | 0 | $ | 31 | |||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | 6 | 0 | 0 | 6 | |||||||||||||||
Rabbi trust investments subtotal | 6 | 0 | 0 | 6 | |||||||||||||||
Total assets | 37 | 0 | 0 | 37 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -6 | 0 | -6 | |||||||||||||||
Total liabilities | 0 | -6 | 0 | -6 | |||||||||||||||
Total net assets (liabilities) | $ | 37 | $ | -6 | $ | 0 | $ | 31 | |||||||||||
BGE had no Level 3 assets or liabilities measured at fair value on a recurring basis during the three and six months ended June 30, 2014 and 2013. | |||||||||||||||||||
Valuation Techniques Used to Determine Fair Value | |||||||||||||||||||
The following describes the valuation techniques used to measure the fair value of the assets and liabilities shown in the tables above. | |||||||||||||||||||
Cash Equivalents (Exelon, Generation, ComEd, PECO and BGE). The Registrants' cash equivalents include investments with maturities of three months or less when purchased. The cash equivalents shown in the fair value tables are comprised of investments in mutual and money market funds. The fair values of the shares of these funds are based on observable market prices and, therefore, have been categorized in Level 1 in the fair value hierarchy. | |||||||||||||||||||
Nuclear Decommissioning Trust Fund Investments and Pledged Assets for Zion Station Decommissioning (Exelon and Generation). The trust fund investments have been established to satisfy Generation's and CENG's nuclear decommissioning obligations as required by the NRC. The NDT funds hold debt and equity securities directly and indirectly through commingled funds. Generation's and CENG's investment policies place limitations on the types and investment grade ratings of the securities that may be held by the trusts. These policies limit the trust funds' exposures to investments in highly illiquid markets and other alternative investments. Investments with maturities of three months or less when purchased, including certain short-term fixed income securities are considered cash equivalents and included in the recurring fair value measurements hierarchy as Level 1 or Level 2. | |||||||||||||||||||
With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are obtained from direct feeds from market exchanges, which Generation is able to independently corroborate. The fair values of equity securities held directly by the trust funds are based on quoted prices in active markets and are categorized in Level 1. Equity securities held individually are primarily traded on the New York Stock Exchange and NASDAQ-Global Select Market, which contain only actively traded securities due to the volume trading requirements imposed by these exchanges. | |||||||||||||||||||
For fixed income securities, multiple prices from pricing services are obtained whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class or issue for each security. The trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the portfolio managers challenge an assigned price and the trustees determine that another price source is considered to be preferable. Generation has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Generation selectively corroborates the fair values of securities by comparison to other market-based price sources. U.S. Treasury securities are categorized as Level 1 because they trade in a highly liquid and transparent market. The fair values of fixed income securities, excluding U.S. Treasury securities, are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities, adjusted for observable differences and are categorized in Level 2. The fair values of private placement fixed income securities are determined using a third party valuation that contains significant unobservable inputs and are categorized in Level 3. | |||||||||||||||||||
Equity, balanced and fixed income commingled funds and fixed income mutual funds are maintained by investment companies and hold certain investments in accordance with a stated set of fund objectives. The fair values of fixed income commingled and mutual funds held within the trust funds, which generally hold short-term fixed income securities and are not subject to restrictions regarding the purchase or sale of shares, are derived from observable prices. The objectives of the remaining equity commingled funds in which Exelon, Generation and CENG invest primarily seek to track the performance of certain equity indices by purchasing equity securities to replicate the capitalization and characteristics of the indices. Comingled and mutual funds are categorized in Level 2 because the fair value of the funds are based on NAVs per fund share (the unit of account), primarily derived from the quoted prices in active markets on the underlying equity securities. See Note 12 — Nuclear Decommissioning for further discussion on the NDT fund investments. | |||||||||||||||||||
Middle market lending are investments in loans or managed funds which invest in private companies. Generation elected the fair value option for its investments in certain limited partnerships that invest in middle market lending managed funds. The fair value of these loans is determined using a combination of valuation models including cost models, market models, and income models. Investments in middle market lending are categorized as Level 3 because the fair value of these securities is based largely on inputs that are unobservable and utilize complex valuation models. Investments in middle market lending typically cannot be redeemed until maturity of the term loan. | |||||||||||||||||||
As of June 30, 2014, Generation has outstanding commitments to invest in middle market lending, corporate debt securities, private equity investments, and real estate investments of approximately $430 million. These commitments will be funded by Generation's existing nuclear decommissioning trust funds. | |||||||||||||||||||
Rabbi Trust Investments (Exelon, Generation, ComEd, PECO and BGE). The Rabbi trusts were established to hold assets related to deferred compensation plans existing for certain active and retired members of Exelon's executive management and directors. The investments in the Rabbi trusts are included in investments in the Registrants' Consolidated Balance Sheets and consist primarily of mutual funds. These funds are maintained by investment companies and hold certain investments in accordance with a stated set of fund objectives, which are consistent with Exelon's overall investment strategy. Mutual funds are publicly quoted and have been categorized as Level 1 given the clear observability of the prices. | |||||||||||||||||||
Mark-to-Market Derivatives (Exelon, Generation, and ComEd). Derivative contracts are traded in both exchange-based and non-exchange-based markets. Exchange-based derivatives that are valued using unadjusted quoted prices in active markets are categorized in Level 1 in the fair value hierarchy. Certain derivatives' pricing is verified using indicative price quotations available through brokers or over-the-counter, on-line exchanges and are categorized in Level 2. These price quotations reflect the average of the bid-ask, mid-point prices and are obtained from sources that the Registrants believe provide the most liquid market for the commodity. The price quotations are reviewed and corroborated to ensure the prices are observable and representative of an orderly transaction between market participants. This includes consideration of actual transaction volumes, market delivery points, bid-ask spreads and contract duration. The remainder of derivative contracts are valued using the Black model, an industry standard option valuation model. The Black model takes into account inputs such as contract terms, including maturity, and market parameters, including assumptions of the future prices of energy, interest rates, volatility, credit worthiness and credit spread. For derivatives that trade in liquid markets, such as generic forwards, swaps and options, model inputs are generally observable. Such instruments are categorized in Level 2. The Registrants' derivatives are predominately at liquid trading points. For derivatives that trade in less liquid markets with limited pricing information model inputs generally would include both observable and unobservable inputs. These valuations may include an estimated basis adjustment from an illiquid trading point to a liquid trading point for which active price quotations are available. Such instruments are categorized in Level 3. | |||||||||||||||||||
Exelon may utilize fixed-to-floating interest rate swaps, which are typically designated as fair value hedges, as a means to achieve its targeted level of variable-rate debt as a percent of total debt. In addition, the Registrants may utilize interest rate derivatives to lock in interest rate levels in anticipation of future financings. These interest rate derivatives are typically designated as cash flow hedges. Exelon determines the current fair value by calculating the net present value of expected payments and receipts under the swap agreement, based on and discounted by the market's expectation of future interest rates. Additional inputs to the net present value calculation may include the contract terms, counterparty credit risk and other market parameters. As these inputs are based on observable data and valuations of similar instruments, the interest rate swaps are categorized in Level 2 in the fair value hierarchy. See Note 9 — Derivative Financial Instruments for further discussion on mark-to-market derivatives. | |||||||||||||||||||
Deferred Compensation Obligations (Exelon, Generation, ComEd, PECO and BGE). The Registrants' deferred compensation plans allow participants to defer certain cash compensation into a notional investment account. The Registrants include such plans in other current and noncurrent liabilities in their Consolidated Balance Sheets. The value of the Registrants' deferred compensation obligations is based on the market value of the participants' notional investment accounts. The notional investments are comprised primarily of mutual funds, which are based on observable market prices. However, since the deferred compensation obligations themselves are not exchanged in an active market, they are categorized as Level 2 in the fair value hierarchy. | |||||||||||||||||||
Additional Information Regarding Level 3 Fair Value Measurements (Exelon, Generation, ComEd) | |||||||||||||||||||
Mark-to-Market Derivatives (Exelon, Generation, ComEd). For valuations that include both observable and unobservable inputs, if the unobservable input is determined to be significant to the overall inputs, the entire valuation is categorized in Level 3. This includes derivatives valued using indicative price quotations whose contract tenure extends into unobservable periods. In instances where observable data is unavailable, consideration is given to the assumptions that market participants would use in valuing the asset or liability. This includes assumptions about market risks such as liquidity, volatility and contract duration. Such instruments are categorized in Level 3 as the model inputs generally are not observable. Exelon's RMC approves risk management policies and objectives for risk assessment, control and valuation, counterparty credit approval, and the monitoring and reporting of risk exposures. The RMC is chaired by the chief risk officer and includes the chief financial officer, corporate controller, general counsel, treasurer, vice president of strategy, vice president of audit services and officers representing Exelon's business units. The RMC reports to the Exelon Board of Directors on the scope of the risk management activities and is responsible for approving all valuation procedures at Exelon. Forward price curves for the power market utilized by the front office to manage the portfolio, are reviewed and verified by the middle office, and used for financial reporting by the back office. The Registrants consider credit and nonperformance risk in the valuation of derivative contracts categorized in Level 2 and 3, including both historical and current market data in its assessment of credit and nonperformance risk by counterparty. Due to master netting agreements and collateral posting requirements, the impacts of credit and nonperformance risk were not material to the financial statements. | |||||||||||||||||||
Disclosed below is detail surrounding the Registrants' significant Level 3 valuations. The calculated fair value includes marketability discounts for margining provisions and other attributes. Generation's Level 3 balance generally consists of forward sales and purchases of power and natural gas, coal purchases, certain transmission congestion contracts, and project financing debt. Generation utilizes various inputs and factors including market data and assumptions that market participants would use in pricing assets or liabilities as well as assumptions about the risks inherent in the inputs to the valuation technique. The inputs and factors include forward commodity prices, commodity price volatility, contractual volumes, delivery location, interest rates, credit quality of counterparties and credit enhancements. | |||||||||||||||||||
For commodity derivatives, the primary input to the valuation models is the forward commodity price curve for each instrument. Forward commodity price curves are derived by risk management for liquid locations and by the traders and portfolio managers for illiquid locations. All locations are reviewed and verified by risk management considering published exchange transaction prices, executed bilateral transactions, broker quotes, and other observable or public data sources. The relevant forward commodity curve used to value each of the derivatives depends on a number of factors, including commodity type, delivery location, and delivery period. Price volatility varies by commodity and location. When appropriate, Generation discounts future cash flows using risk free interest rates with adjustments to reflect the credit quality of each counterparty for assets and Generation's own credit quality for liabilities. The level of observability of a forward commodity price is generally due to the delivery location and delivery period. Certain delivery locations including PJM West Hub (for power) and Henry Hub (for natural gas) are more liquid and prices are observable for up to three years in the future. The observability period of volatility is generally shorter than the underlying power curve used in option valuations. The forward curve for a less liquid location is estimated by using the forward curve from the liquid location and applying a spread to represent the cost to transport the commodity to the delivery location. This spread does not typically represent a majority of the instrument's market price. As a result, the change in fair value is closely tied to liquid market movements and not a change in the applied spread. The change in fair value associated with a change in the spread is generally immaterial. An average spread calculated across all Level 3 power and gas delivery locations is approximately $2.57 and $0.41 for power and natural gas, respectively. Many of the commodity derivatives are short term in nature and thus a majority of the fair value may be based on observable inputs even though the contract as a whole must be classified as Level 3. See Item 3. – Quantitative and Qualitative Disclosures About Market Risk for information regarding the maturity by year of the Registrant's mark-to-market derivative assets and liabilities. | |||||||||||||||||||
On December 17, 2010, ComEd entered into several 20-year floating to fixed energy swap contracts with unaffiliated suppliers for the procurement of long-term renewable energy and associated RECs. See Note 9 – Derivative Financial Instruments for more information. The fair value of these swaps has been designated as a Level 3 valuation due to the long tenure of the positions and internal modeling assumptions. The modeling assumptions include using natural gas heat rates to project long term forward power curves adjusted by a renewable factor that incorporates time of day and seasonality factors to reflect accurate renewable energy pricing. In addition, marketability reserves are applied to the positions based on the tenor and supplier risk. The table below discloses the significant inputs to the forward curve used to value these positions. | |||||||||||||||||||
Type of trade | Fair Value at June 30, 2014 (c) | Valuation Technique | Unobservable Input | Range | |||||||||||||||
Mark-to-market derivatives – Economic Hedges (Generation) (a) | $ | 82 | Discounted Cash Flow | Forward power price | $ | 16 | - | $ | 170 | (d) | |||||||||
Forward gas price | $ | 2.19 | - | $ | 19.84 | (d) | |||||||||||||
Option Model | Volatility percentage | 8 | % | - | 260 | % | |||||||||||||
Mark-to-market derivatives – Proprietary trading (Generation) (a) | $ | 8 | Discounted Cash Flow | Forward power price | $ | 13 | - | $ | 168 | (d) | |||||||||
Option Model | Volatility percentage | 8 | % | - | 260 | % | |||||||||||||
Mark-to-market derivatives (ComEd) | $ | -134 | Discounted Cash Flow | Forward heat rate (b) | 8 | x | - | 9 | x | ||||||||||
Marketability reserve | 3.5 | % | - | 8 | % | ||||||||||||||
Renewable factor | 86 | % | - | 123 | % | ||||||||||||||
The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions. | |||||||||||||||||||
Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contract's delivery. | |||||||||||||||||||
The fair values do not include cash collateral held on level three positions of $152 million as of June 30, 2014. | |||||||||||||||||||
The upper ends of the ranges are driven by the winter power and gas prices in the New England region. Without the New England region, the upper ends of the ranges for power and gas economic hedges would be approximately $106 and $10.29, respectively, and would be approximately $93 for power proprietary trading. | |||||||||||||||||||
Type of trade | Fair Value at December 31, 2013 (c) | Valuation Technique | Unobservable Input | Range | |||||||||||||||
Mark-to-market derivatives – Economic Hedges (Generation) (a) | $ | 488 | Discounted Cash Flow | Forward power price | $ | 8 | - | $ | 176 | (d) | |||||||||
Forward gas price | $ | 2.98 | - | $ | 16.63 | (d) | |||||||||||||
Option Model | Volatility percentage | 15 | % | - | 142 | % | |||||||||||||
Mark-to-market derivatives – Proprietary trading (Generation) (a) | $ | 3 | Discounted Cash Flow | Forward power price | $ | 10 | - | $ | 176 | (d) | |||||||||
Option Model | Volatility percentage | 14 | % | - | 19 | % | |||||||||||||
Mark-to-market derivatives (ComEd) | $ | -193 | Discounted Cash Flow | Forward heat rate (b) | 8 | x | - | 9 | x | ||||||||||
Marketability reserve | 3.5 | % | - | 8 | % | ||||||||||||||
Renewable factor | 84 | % | - | 128 | % | ||||||||||||||
The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions. | |||||||||||||||||||
Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contract's delivery. | |||||||||||||||||||
The fair values do not include cash collateral held on level three positions of $26 million as of December 31, 2013 | |||||||||||||||||||
The upper ends of the ranges are driven by the winter power and gas prices in the New England region. Without the New England region, the upper ends of the ranges for power and gas would be approximately $100 and $5.70, respectively. | |||||||||||||||||||
The inputs listed above would have a direct impact on the fair values of the above instruments if they were adjusted. The significant unobservable inputs used in the fair value measurement of Generation's commodity derivatives are forward commodity prices and for options is price volatility. Increases (decreases) in the forward commodity price in isolation would result in significantly higher (lower) fair values for long positions (contracts that give Generation the obligation or option to purchase a commodity), with offsetting impacts to short positions (contracts that give Generation the obligation or right to sell a commodity). Increases (decreases) in volatility would increase (decrease) the value for the holder of the option (writer of the option). Generally, a change in the estimate of forward commodity prices is unrelated to a change in the estimate of volatility of prices. An increase to the reserves listed above would decrease the fair value of the positions. An increase to the heat rate or renewable factors would increase the fair value accordingly. Generally, interrelationships exist between market prices of natural gas and power. As such, an increase in natural gas pricing would potentially have a similar impact on forward power markets. | |||||||||||||||||||
Nuclear Decommissioning Trust Fund Investments and Pledged Assets for Zion Station Decommissioning (Exelon and Generation). For middle market lending, certain corporate debt securities, and private equity investments the fair value is determined using a combination of valuation models including cost models, market models and income models. The valuation estimates are based on valuations of comparable companies, discounting the forecasted cash flows of the portfolio company, estimating the liquidation or collateral value of the portfolio company or its assets, considering offers from third parties to buy the portfolio company, its historical and projected financial results, as well as other factors that may impact value. Significant judgment is required in the application of discounts or premiums applied to the prices of comparable companies for factors such as size, marketability, credit risk and relative performance. | |||||||||||||||||||
Because Generation relies on third-party fund managers to develop the quantitative unobservable inputs without adjustment for the valuations of its' Level 3 investments, quantitative information about significant unobservable inputs used in valuing these investments is not reasonably available to Generation. This includes information regarding the sensitivity of the fair values to changes in the unobservable inputs. Generation gains an understanding of the fund managers' inputs and assumptions used in preparing the valuations. Generation performed procedures to assess the reasonableness of the valuations. For a sample of its' Level 3 investments, Generation reviewed independent valuations and reviewed the assumptions in the detailed pricing models used by the fund managers. | |||||||||||||||||||
Derivative_Financial_Instrumen
Derivative Financial Instruments (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | |||||||||||||||||
Jun. 30, 2014 | ||||||||||||||||||
Derivative Financial Instruments [Line Items] | ' | |||||||||||||||||
Derivative Financial Instruments (Exelon, Generation, ComEd, PECO and BGE) | ' | |||||||||||||||||
9. Derivative Financial Instruments (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
The Registrants use derivative instruments to manage commodity price risk and interest rate risk related to ongoing business operations. | ||||||||||||||||||
Commodity Price Risk (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
To the extent the amount of energy Exelon generates differs from the amount of energy it has contracted to sell, the Registrants are exposed to market fluctuations in the prices of electricity, fossil fuels and other commodities. The Registrants employ established policies and procedures to manage their risks associated with market fluctuations by entering into physical and financial derivative contracts, including swaps, futures, forwards, options and short-term and long-term commitments to purchase and sell energy and energy-related products. The Registrants believe these instruments, which are classified as either economic hedges or non-derivatives, mitigate exposure to fluctuations in commodity prices. | ||||||||||||||||||
Derivative accounting guidance requires that derivative instruments be recognized as either assets or liabilities at fair value, with changes in fair value of the derivative recognized in earnings each period. Other accounting treatments are available through special election and designation, provided they meet specific, restrictive criteria both at the time of designation and on an ongoing basis. These alternative permissible accounting treatments include normal purchase normal sale (NPNS), cash flow hedge, and fair value hedge. For commodity transactions, effective with the date of merger with Constellation, Generation no longer utilizes the special election provided for by the cash flow hedge designation and de-designated all of its existing cash flow hedges prior to the merger. Because the underlying forecasted transactions remain at least reasonably possible, the fair value of the effective portion of these cash flow hedges was frozen in accumulated OCI and reclassified to results of operations when the forecasted purchase or sale of the energy commodity occurs, or becomes probable of not occurring. None of Constellation's designated cash flow hedges for commodity transactions prior to the merger were re-designated as cash flow hedges. The effect of this decision is that all derivative economic hedges for commodities are recorded at fair value through earnings for the combined company, referred to as economic hedges in the following tables. The Registrants have applied the NPNS scope exception to certain derivative contracts for the forward sale of generation, power procurement agreements, and natural gas supply agreements. Non-derivative contracts for access to additional generation and certain sales to load-serving entities are accounted for primarily under the accrual method of accounting, which is further discussed in Note 22 – Commitments and Contingencies of the Exelon 2013 Form 10-K. Additionally, Generation is exposed to certain market risks through its proprietary trading activities. The proprietary trading activities are a complement to Generation's energy marketing portfolio but represent a small portion of Generation's overall energy marketing activities. | ||||||||||||||||||
Economic Hedging. The Registrants are exposed to commodity price risk primarily relating to changes in the market price of electricity, fossil fuels, and other commodities associated with price movements resulting from changes in supply and demand, fuel costs, market liquidity, weather conditions, governmental regulatory and environmental policies, and other factors. Within Exelon, Generation has the most exposure to commodity price risk. As such, Generation uses a variety of derivative and non-derivative instruments to manage the commodity price risk of its electric generation facilities, including power and gas sales, fuel and energy purchases, natural gas transportation and pipeline capacity agreements and other energy-related products marketed and purchased. In order to manage these risks, Generation may enter into fixed-price derivative or non-derivative contracts to hedge the variability in future cash flows from forecasted sales of energy and gas and purchases of fuel and energy. The objectives for entering into such hedges include fixing the price for a portion of anticipated future electricity sales at a level that provides an acceptable return on electric generation operations, fixing the price of a portion of anticipated fuel purchases for the operation of power plants, and fixing the price for a portion of anticipated energy purchases to supply load-serving customers. The portion of forecasted transactions hedged may vary based upon management's policies and hedging objectives, the market, weather conditions, operational and other factors. Generation is also exposed to differences between the locational settlement prices of certain economic hedges and the hedged generating units. This price difference is actively managed through other instruments which include derivative congestion products, whose changes in fair value are recognized in earnings each period, and auction revenue rights, which are accounted for on an accrual basis. | ||||||||||||||||||
In general, increases and decreases in forward market prices have a positive and negative impact, respectively, on Generation's owned and contracted generation positions that have not been hedged. Generation hedges commodity price risk on a ratable basis over three-year periods. As of June 30, 2014, the percentage of expected generation hedged for the major reportable segments was 92%-95%, 75%-78%, and 46%-49% for 2014, 2015, and 2016, respectively. The percentage of expected generation hedged is the amount of equivalent sales divided by the expected generation. Expected generation represents the amount of energy estimated to be generated or purchased through owned or contracted capacity. Equivalent sales represent all hedging products, which include economic hedges and certain non-derivative contracts including, Generation's sales to ComEd, PECO and BGE to serve their retail load. | ||||||||||||||||||
On December 17, 2010, ComEd entered into several 20-year floating-to-fixed energy swap contracts with unaffiliated suppliers for the procurement of long-term renewable energy and associated RECs. Delivery under the contracts began in June 2012. Pursuant to the ICC's Order on December 19, 2012, ComEd's commitments under the existing long-term contracts for energy and associated RECs were reduced for the June 2013 through May 2014 procurement period. In addition, the ICC's December 18, 2013 Order approved the reduction of ComEd's commitments under those contracts for the June 2014 through May 2015 procurement period, and the amount of the reduction was approved in March 2014. These contracts are designed to lock in a portion of the long-term commodity price risk resulting from the renewable energy resource procurement requirements in the Illinois Settlement Legislation. ComEd has not elected hedge accounting for these derivative financial instruments. ComEd records the fair value of the swap contracts on its balance sheet. Because ComEd receives full cost recovery for energy procurement and related costs from retail customers, the change in fair value each period is recorded by ComEd as a regulatory asset or liability. See Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K for additional information. | ||||||||||||||||||
PECO has contracts to procure electric supply that were executed through the competitive procurement process outlined in its PAPUC-approved DSP Programs, which are further discussed in Note 5 - Regulatory Matters. Based on Pennsylvania legislation and the DSP Programs permitting PECO to recover its electric supply procurement costs from retail customers with no mark-up, PECO's price risk related to electric supply procurement is limited. PECO locked in fixed prices for a significant portion of its commodity price risk through full requirements contracts and block contracts. PECO has certain full requirements contracts and block contracts that are considered derivatives and qualify for the NPNS scope exception under current derivative authoritative guidance. | ||||||||||||||||||
PECO's natural gas procurement policy is designed to achieve a reasonable balance of long-term and short-term gas purchases under different pricing approaches in order to achieve system supply reliability at the least cost. PECO's reliability strategy is two-fold. First, PECO must assure that there is sufficient transportation capacity to satisfy delivery requirements. Second, PECO must ensure that a firm source of supply exists to utilize the capacity resources. All of PECO's natural gas supply and asset management agreements that are derivatives either qualify for the NPNS scope exception and have been designated as such, or have no mark-to-market balances because the derivatives are index priced. Additionally, in accordance with the 2013 PAPUC PGC settlement and to reduce the exposure of PECO and its customers to natural gas price volatility, PECO has continued its program to purchase natural gas for both winter and summer supplies using a layered approach of locking-in prices ahead of each season with long-term gas purchase agreements (those with primary terms of at least twelve months). Under the terms of the 2013 PGC settlement, PECO is required to lock in (i.e., economically hedge) the price of a minimum volume of its long-term gas commodity purchases. PECO's gas-hedging program is designed to cover about 30% of planned natural gas purchases in support of projected firm sales. The hedging program for natural gas procurement has no direct impact on PECO's financial position or results of operations as natural gas costs are fully recovered from customers under the PGC. | ||||||||||||||||||
BGE has contracts to procure SOS electric supply that are executed through a competitive procurement process approved by the MDPSC. The SOS rates charged recover BGE's wholesale power supply costs and include an administrative fee. The administrative fee includes an incremental cost component and a shareholder return component for commercial and industrial rate classes. BGE's price risk related to electric supply procurement is limited. BGE locks in fixed prices for all of its SOS requirements through full requirements contracts. Certain of BGE's full requirements contracts, which are considered derivatives, qualify for the NPNS scope exception under current derivative authoritative guidance. Other BGE full requirements contracts are not derivatives. | ||||||||||||||||||
BGE provides natural gas to its customers under a MBR mechanism approved by the MDPSC. Under this mechanism, BGE's actual cost of gas is compared to a market index (a measure of the market price of gas in a given period). The difference between BGE's actual cost and the market index is shared equally between shareholders and customers. BGE must also secure fixed price contracts for at least 10%, but not more than 20%, of forecasted system supply requirements for flowing (i.e., non-storage) gas for the November through March period. These fixed-price contracts are not subject to sharing under the MBR mechanism. BGE also ensures it has sufficient pipeline transportation capacity to meet customer requirements. All of BGE's natural gas supply and asset management agreements qualify for the NPNS scope exception and result in physical delivery. | ||||||||||||||||||
Proprietary Trading. Generation also enters into certain energy-related derivatives for proprietary trading purposes. Proprietary trading includes all contracts entered into with the intent of benefiting from shifts or changes in market prices as opposed to those entered into with the intent of hedging or managing risk. Proprietary trading activities are subject to limits established by Exelon's RMC. The proprietary trading activities, which included settled physical sales volumes of 2,629 GWhs and 5,123 GWhs for the three and six months ended June 30, 2014, respectively, and 1,995 GWhs and 3,567 for the three and six months ended June 30, 2013, respectively, are a complement to Generation's energy marketing portfolio but represent a small portion of Generation's revenue from energy marketing activities. ComEd, PECO and BGE do not enter into derivatives for proprietary trading purposes. | ||||||||||||||||||
Interest Rate and Foreign Exchange Risk (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
The Registrants use a combination of fixed-rate and variable-rate debt to manage interest rate exposure. The Registrants may also utilize fixed-to-floating interest rate swaps, which are typically designated as fair value hedges, as a means to manage their interest rate exposure. In addition, the Registrants may utilize interest rate derivatives to lock in rate levels in anticipation of future financings, which are typically designated as cash flow hedges. These strategies are employed to manage interest rate risks. At June 30, 2014, Exelon and Generation had $1,550 million and $700 million of notional amounts of fixed-to-floating hedges outstanding, respectively, and $1,111 million and $411 million of notional amounts of floating-to-fixed hedges outstanding, respectively. Assuming the fair value and cash flow interest rate hedges are 100% effective, a hypothetical 50 bps increase in the interest rates associated with unhedged variable-rate debt (excluding Commercial Paper) and fixed-to-floating swaps would result in approximately a $4 million decrease in Exelon Consolidated pre-tax income for the six months ended June 30, 2014. To manage foreign exchange rate exposure associated with international energy purchases in currencies other than U.S. dollars, Generation utilizes foreign currency derivatives, which are typically designated as economic hedges. Below is a summary of the interest rate and foreign currency hedges as of June 30, 2014. | ||||||||||||||||||
Generation | Other | Exelon | ||||||||||||||||
Description | Derivatives Designated as Hedging Instruments | Economic Hedges | Proprietary Trading(a) | Collateral and Netting(b) | Subtotal | Derivatives Designated as Hedging Instruments | Total | |||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 0 | $ | 2 | $ | 14 | $ | -18 | $ | -2 | $ | 0 | $ | -2 | ||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 16 | 2 | 12 | -10 | 20 | 18 | 38 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 16 | $ | 4 | $ | 26 | $ | -28 | $ | 18 | $ | 18 | $ | 36 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -1 | $ | -4 | $ | -15 | $ | 19 | $ | -1 | $ | 0 | $ | -1 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -19 | -2 | -11 | 11 | -21 | -6 | -27 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -20 | $ | -6 | $ | -26 | $ | 30 | $ | -22 | $ | -6 | $ | -28 | ||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | -4 | $ | -2 | $ | 0 | $ | 2 | $ | -4 | $ | 12 | $ | 8 | ||||
Generation enters into interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The characterization of the interest rate derivative contracts between the proprietary trading activity in the above table is driven by the corresponding characterization of the underlying commodity position that gives rise to the interest rate exposure. Generation does not utilize proprietary trading interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates. | ||||||||||||||||||
Represents the netting of fair value balances with the same counterparty and any associated cash collateral. | ||||||||||||||||||
The following table provides a summary of the interest rate and foreign exchange hedge balances recorded by the Registrants as of December 31, 2013: | ||||||||||||||||||
Generation | Other | Exelon | ||||||||||||||||
Description | Derivatives Designated as Hedging Instruments | Economic Hedges | Proprietary Trading(a) | Collateral and Netting(b) | Subtotal | Derivatives Designated as Hedging Instruments | Total | |||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 0 | $ | 3 | $ | 15 | $ | -19 | $ | -1 | $ | 0 | $ | -1 | ||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 26 | 3 | 15 | -13 | 31 | 7 | 38 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 26 | $ | 6 | $ | 30 | $ | -32 | $ | 30 | $ | 7 | $ | 37 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -1 | $ | -1 | $ | -18 | $ | 19 | $ | -1 | $ | 0 | $ | -1 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -10 | -1 | -13 | 13 | -11 | -4 | -15 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -11 | $ | -2 | $ | -31 | $ | 32 | $ | -12 | $ | -4 | $ | -16 | ||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | 15 | $ | 4 | $ | -1 | $ | 0 | $ | 18 | $ | 3 | $ | 21 | ||||
Fair Value Hedges. For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in current earnings. Exelon includes the gain or loss on the hedged items and the offsetting loss or gain on the related interest rate swaps in interest expense as follows: | ||||||||||||||||||
Generation enters into interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The characterization of the interest rate derivative contracts between the proprietary trading activity in the above table is driven by the corresponding characterization of the underlying commodity position that gives rise to the interest rate exposure. Generation does not utilize proprietary trading interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates. | ||||||||||||||||||
Represents the netting of fair value balances with the same counterparty and any associated cash collateral. | ||||||||||||||||||
Three Months Ended June 30, | ||||||||||||||||||
Income Statement | 2014 | 2013 | 2014 | 2013 | ||||||||||||||
Location | Gain (Loss) on Swaps | Gain (Loss) on Borrowings | ||||||||||||||||
Generation | Interest expense(a) | $ | -3 | $ | -5 | $ | 2 | $ | 2 | |||||||||
Exelon | Interest expense | 3 | -6 | -3 | 3 | |||||||||||||
Six Months Ended June 30, | ||||||||||||||||||
Income Statement | 2014 | 2013 | 2014 | 2013 | ||||||||||||||
Location | Gain (Loss) on Swaps | Gain (Loss) on Borrowings | ||||||||||||||||
Generation | Interest expense(a) | $ | -8 | $ | -9 | $ | 1 | $ | 1 | |||||||||
Exelon | Interest expense | 5 | -12 | -7 | 4 | |||||||||||||
__________ | ||||||||||||||||||
For the three and six months ended June 30, 2014, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. For the three and six months ended June 30, 2013, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. | ||||||||||||||||||
During the first six months of 2014, Exelon entered into $50 million and $75 million of notional amounts of fixed-to-floating fair value hedges related to interest rate swaps, which expire in 2019 and 2020, respectively. At June 30, 2014, Exelon and Generation had total outstanding fixed-to-floating fair value hedges related to interest rate swaps of $1,400 million and $550 million, with unrealized gains of $33 million and $16 million, respectively. At December 31, 2013, Exelon and Generation had outstanding fixed-to-floating fair value hedges related to interest rate swaps of $1,275 million and $550 million, with unrealized gains of $26 million and $23 million, respectively. During the three and six months ended June 30, 2014, the impact on the results of operations as a result of ineffectiveness from fair value hedges was a $5 million and a $8 million gain, respectively. During the three and six months ended June 30, 2013, the impact on the results of operations as a result of ineffectiveness from fair value hedges was immaterial. | ||||||||||||||||||
Cash Flow Hedges. In connection with the DOE guaranteed loan for the Antelope Valley project financings, as discussed in Note 13 – Debt and Credit Agreements of the Exelon 2013 Form 10-K, Generation entered into a floating-to-fixed forward starting interest rate swap with a notional amount of $485 million and a mandatory early termination date of September 30, 2014. The swap hedges approximately 75% of Generation's future interest rate exposure associated with the financing and was designated as a cash flow hedge. As such, the effective portion of the hedge is recorded in other comprehensive income within Generation's Consolidated Balance Sheets, with any ineffectiveness recorded in Generation's Consolidated Statements of Operations and Comprehensive Income. Net gains (or losses) from settlement of the hedges, to the extent effective, are amortized as an adjustment to the interest expense over the term of the DOE guaranteed loan. | ||||||||||||||||||
Every time Generation draws down on the loan, an offsetting hedge (fixed-to-floating) is executed and a portion of the cash flow hedge with a notional amount equal to the offsetting hedge, is de-designated and the related gains or losses going forward are reflected in earnings, which are largely offset by the losses or gains in the offsetting hedge. | ||||||||||||||||||
Antelope Valley received its first loan advance on April 5, 2012, and a series of additional advances subsequently. Generation has entered into a series of fixed-to-floating interest rate swaps with an aggregated notional amount of $350 million, approximately 75% of the loan advance amount to offset portions of the original interest rate hedge, which are not designated as cash flow hedges. The remaining cash flow hedge has a notional amount of $135 million. At June 30, 2014, Generation's mark-to-market derivative liability relating to the interest rate swaps in connection with the loan agreement to fund Antelope Valley was $15 million. | ||||||||||||||||||
During the third quarter of 2011, a subsidiary of Constellation entered into floating-to-fixed interest rate swaps to manage a portion of the interest rate exposure for anticipated long-term borrowings to finance Sacramento PV Energy. The swaps have a total notional amount of $27 million as of June 30, 2014 and expire in 2027. After the closing of the merger with Constellation, the swaps were re-designated as cash flow hedges. At June 30, 2014, the subsidiary had a $2 million derivative liability related to these swaps. | ||||||||||||||||||
During the third quarter of 2012, a subsidiary of Exelon Generation entered into a floating-to-fixed interest rate swap to manage a portion of the interest rate exposure of anticipated long-term borrowings to finance Constellation Solar Horizons. The swap has a notional amount of $26 million as of June 30, 2014 and expires in 2030. This swap is designated as a cash flow hedge. At June 30, 2014, the subsidiary had a $1 million derivative asset related to the swap. | ||||||||||||||||||
During the first quarter of 2014, a subsidiary of Exelon Generation entered into floating-to-fixed interest rate swaps to manage a portion of the interest rate exposure with long-term borrowings to finance ExGen Renewables I, LLC. See Note 10 – Debt and Credit Agreements for additional information regarding the financing. The swaps have a notional amount of $223 million as of June 30, 2014 and expire in 2020. The swaps are designated as cash flow hedges. At June 30, 2014, the subsidiary had a $2 million derivative liability related to the swaps. | ||||||||||||||||||
During the first six months of 2014, Exelon entered into $400 million of floating-to-fixed interest rate hedges to refinance existing debt. The swaps are designated as cash flow hedges. At June 30, 2014, Exelon had a $6 million derivative liability related to the swaps. | ||||||||||||||||||
During the three and six months ended June 30, 2014 and 2013, the impact on the results of operations as a result of ineffectiveness from cash flow hedges was immaterial. | ||||||||||||||||||
Economic Hedges. During the second quarter of 2014, Exelon entered into $300 million of floating-to-fixed forward starting interest rate swaps to manage interest rate risks associated with anticipated future debt issuance related to the proposed merger with PHI. At June 30, 2014, Exelon had an immaterial derivative asset related to the swaps. | ||||||||||||||||||
At June 30, 2014, Exelon and Generation had $150 million in notional amounts of fixed-to-floating interest rate swaps that are marked-to-market, with unrealized gains of $1 million. These swaps, which were acquired as part of the merger with Constellation, expire in 2014. During the six months ended June 30, 2014 and 2013, the impact on the results of operations was immaterial. | ||||||||||||||||||
At June 30, 2014, Generation had $257 million in notional amounts of interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions and $121 million in notional amounts of foreign currency exchange rate swaps that are marked-to-market to manage the exposure associated with international purchases of commodities in currencies other than U.S. dollars. | ||||||||||||||||||
Fair Value Measurement and Accounting for the Offsetting of Amounts Related to Certain Contracts (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
Fair value accounting guidance and disclosures about offsetting assets and liabilities requires the fair value of derivative instruments to be shown in the Notes to the Consolidated Financial Statements on a gross basis, even when the derivative instruments are subject to legally enforceable master netting agreements and qualify for net presentation in the Consolidated Balance Sheet. A master netting agreement is an agreement between two counterparties that may have derivative and non-derivative contracts with each other providing for the net settlement of all referencing contracts via one payment stream, which takes place as the contracts deliver, when collateral is requested or in the event of default. Generation's use of cash collateral is generally unrestricted unless Generation is downgraded below investment grade (i.e., to BB+ or Ba1). In the table below, Generation's energy related economic hedges and proprietary trading derivatives are shown gross and the impact of the netting of fair value balances with the same counterparty that are subject to legally enforceable master netting agreements, as well as netting of cash collateral, is aggregated in the collateral and netting column. As of June 30, 2014 and December 31, 2013, $7 million of cash collateral held and $10 million of cash collateral posted, respectively, was not offset against derivative positions because such collateral was not associated with any energy-related derivatives or as of the balance sheet date there were no positions to offset. Excluded from the tables below are economic hedges that qualify for the NPNS scope exception and other non-derivative contracts that are accounted for under the accrual method of accounting. | ||||||||||||||||||
ComEd's use of cash collateral is generally unrestricted unless ComEd is downgraded below investment grade (i.e., to BB+ or Ba1). | ||||||||||||||||||
Cash collateral held by PECO and BGE must be deposited in a non affiliate major U.S. commercial bank or foreign bank with a U.S. branch office that meet certain qualifications. | ||||||||||||||||||
The following table provides a summary of the derivative fair value balances recorded by the Registrants as of June 30, 2014: | ||||||||||||||||||
Generation | ComEd | Exelon | ||||||||||||||||
Economic | Proprietary | Collateral and | Economic | Total | ||||||||||||||
Derivatives | Hedges | Trading | Netting(a) | Subtotal(b) | Hedges(c) | Derivatives | ||||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 3,422 | $ | 925 | $ | -3,716 | $ | 631 | $ | 0 | $ | 631 | ||||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 1,394 | 149 | -1,099 | 444 | 0 | 444 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 4,816 | $ | 1,074 | $ | -4,815 | $ | 1,075 | $ | 0 | $ | 1,075 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -3,354 | $ | -900 | $ | 4,040 | $ | -214 | $ | -13 | $ | -227 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -1,214 | -165 | 1,265 | -114 | -121 | -235 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -4,568 | $ | -1,065 | $ | 5,305 | $ | -328 | $ | -134 | $ | -462 | ||||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | 248 | $ | 9 | $ | 490 | $ | 747 | $ | -134 | $ | 613 | ||||||
__________ | ||||||||||||||||||
(a) Exelon and Generation net all available amounts allowed under the derivative accounting guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, letters of credit and other forms of non-cash collateral. These are not reflected in the table above. | ||||||||||||||||||
(b) Current and noncurrent assets are shown net of collateral of $(126) million and $(56) million, respectively, and current and noncurrent liabilities are shown net of collateral of $(198) million and $(110) million, respectively. The total cash collateral posted, net of cash collateral received and offset against mark-to-market assets and liabilities was $490 million at June 30, 2014. | ||||||||||||||||||
(c) Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers. | ||||||||||||||||||
The following table provides a summary of the derivative fair value balances recorded by the Registrants as of December 31, 2013: | ||||||||||||||||||
Generation | ComEd | Exelon | ||||||||||||||||
Economic | Proprietary | Collateral and | Economic | Total | ||||||||||||||
Description | Hedges | Trading | Netting(a) | Subtotal(b) | Hedges (c) | Derivatives | ||||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 2,616 | $ | 1,476 | $ | -3,364 | $ | 728 | $ | 0 | $ | 728 | ||||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 1,344 | 285 | -1,060 | 569 | 0 | 569 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 3,960 | $ | 1,761 | $ | -4,424 | $ | 1,297 | $ | 0 | $ | 1,297 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -2,023 | $ | -1,410 | $ | 3,292 | $ | -141 | $ | -17 | $ | -158 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -804 | -293 | 988 | -109 | -176 | -285 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -2,827 | $ | -1,703 | $ | 4,280 | $ | -250 | $ | -193 | $ | -443 | ||||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | 1,133 | $ | 58 | $ | -144 | $ | 1,047 | $ | -193 | $ | 854 | ||||||
__________ | ||||||||||||||||||
(a) Exelon and Generation net all available amounts allowed under the derivative accounting guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, and letters of credit. These are not reflected in the table above. | ||||||||||||||||||
(b) Current and noncurrent assets are shown net of collateral of $84 million and $72 million, respectively, and current and noncurrent liabilities are shown net of collateral of $(12) million and $0 million, respectively. The total cash collateral received, net of cash collateral posted and offset against mark-to-market assets and liabilities was $144 million at December 31, 2013. | ||||||||||||||||||
(c) Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers. | ||||||||||||||||||
Cash Flow Hedges (Exelon and Generation). As discussed previously, effective prior to the merger with Constellation, Generation de-designated all of its cash flow hedges relating to commodity price risk. Because the underlying forecasted transactions remain at least reasonably possible, the fair value of the effective portion of these cash flow hedges was frozen in accumulated OCI and is reclassified to results of operations when the forecasted purchase or sale of the energy commodity occurs, or becomes probable of not occurring. Generation began recording prospective changes in the fair value of these instruments through current earnings from the date of de-designation. Approximately $94 million of these net pre-tax unrealized gains within accumulated OCI are expected to be reclassified from accumulated OCI during the next twelve months by Generation. Generation expects the settlement of the majority of its cash flow hedges will occur during 2014. | ||||||||||||||||||
The tables below provide the activity of accumulated OCI related to cash flow hedges for the three months ended June 30, 2014 and 2013, containing information about the changes in the fair value of cash flow hedges and the reclassification from accumulated OCI into results of operations. The amounts reclassified from accumulated OCI, when combined with the impacts of the actual physical power sales, result in the ultimate recognition of net revenues at the contracted price. | ||||||||||||||||||
Total Cash Flow Hedge OCI Activity, Net of Income Tax | ||||||||||||||||||
Generation | Exelon | |||||||||||||||||
Three Months Ended June 30, 2014 | Income Statement Location | Energy-Related Hedges | Total Cash Flow Hedges | |||||||||||||||
Accumulated OCI derivative gain at March 31, 2014 | $ | 95 | (a) | $ | 95 | |||||||||||||
Effective portion of changes in fair value | 0 | -10 | ||||||||||||||||
Reclassifications from accumulated OCI to net income | Operating Revenues | -38 | (b) | -38 | ||||||||||||||
Accumulated OCI derivative gain at June 30, 2014 | $ | 57 | (a) | $ | 47 | |||||||||||||
Excludes $6 million and $3 million of gains, net of taxes, related to interest rate swaps and treasury rate locks as of June 30, 2014 and March 31, 2014. | ||||||||||||||||||
Total Cash Flow Hedge OCI Activity, Net of Income Tax | ||||||||||||||||||
Generation | Exelon | |||||||||||||||||
Six Months Ended June 30, 2014 | Income Statement Location | Energy-Related Hedges | Total Cash Flow Hedges | |||||||||||||||
Accumulated OCI derivative gain at December 31, 2013 | $ | 119 | (a) | $ | 120 | |||||||||||||
Effective portion of changes in fair value | 0 | -11 | ||||||||||||||||
Reclassifications from accumulated OCI to net income | Operating Revenues | -62 | (b) | -62 | ||||||||||||||
Accumulated OCI derivative gain at June 30, 2014 | $ | 57 | (a) | $ | 47 | |||||||||||||
__________ | ||||||||||||||||||
Excludes $9 million of gains and $15 million of losses, net of taxes, related to interest rate swaps and treasury locks as of June 30, 2014 and December 31, 2013, respectively. | ||||||||||||||||||
Total Cash Flow Hedge OCI Activity, Net of Income Tax | ||||||||||||||||||
Generation | Exelon | |||||||||||||||||
Three Months Ended June 30, 2013 | Income Statement Location | Energy-Related Hedges | Total Cash Flow Hedges | |||||||||||||||
Accumulated OCI derivative gain at March 31, 2013 | $ | 397 | (a)(c) | $ | 310 | |||||||||||||
Effective portion of changes in fair value | 0 | 21 | (d) | |||||||||||||||
Reclassifications from accumulated OCI to net income | Operating Revenues | -142 | (b) (e) | -86 | ||||||||||||||
Accumulated OCI derivative gain at June 30, 2013 | $ | 255 | (c) | $ | 245 | |||||||||||||
. | ||||||||||||||||||
(a) Includes $58 million of gains, net of taxes, related to the fair value of the five-year financial swap contract with ComEd, as of March 31, 2013. | ||||||||||||||||||
(b) Includes $58 million of losses, net of taxes, reclassified from accumulated OCI to recognize gains in net income related to the settlements of the five-year financial swap contract with ComEd. | ||||||||||||||||||
(c) Excludes $11 million and $16 million of losses, net of taxes, related to interest rate swaps and treasury rate locks as of June 30, 2013 and March 31, 2013, respectively. | ||||||||||||||||||
(d) Includes $18 million of losses, net of taxes, related to the effective portion of changes in fair value of interest rate swaps and treasury rate locks at Generation for the three months ended June 30, 2013. | ||||||||||||||||||
Total Cash Flow Hedge OCI Activity, Net of Income Tax | ||||||||||||||||||
Generation | Exelon | |||||||||||||||||
Six Months Ended June 30, 2013 | Income Statement Location | Energy-Related Hedges | Total Cash Flow Hedges | |||||||||||||||
Accumulated OCI derivative gain at December 31, 2012 | $ | 532 | (a)(c) | $ | 368 | |||||||||||||
Effective portion of changes in fair value | 0 | 21 | (d) | |||||||||||||||
Reclassifications from accumulated OCI to net income | Operating Revenues | -277 | (b) (e) | -144 | ||||||||||||||
Accumulated OCI derivative gain at June 30, 2013 | $ | 255 | (c) | $ | 245 | |||||||||||||
_____________ | ||||||||||||||||||
(a) Includes $133 million of gains, net of taxes, related to the fair value of the five-year financial swap contract with ComEd, as of December 31, 2012. | ||||||||||||||||||
(b) Includes $133 million of losses, net of taxes, reclassified from accumulated OCI to recognize gains in net income related to the settlements of the five-year financial swap contract with ComEd. | ||||||||||||||||||
(c) Excludes $11 million of losses and $20 million of losses, net of taxes, related to interest rate swaps and treasury rate locks as of June 30, 2013 and December 31, 2012, respectively. | ||||||||||||||||||
(d) Includes $22 million of losses, net of taxes, related to the effective portion of changes in fair value of interest rate swaps and treasury rate locks. | ||||||||||||||||||
During the three and six months ended June 30, 2014 and 2013, Generation's former energy related cash flow hedge activity impact to pre-tax earnings based on the reclassification adjustment from accumulated OCI to earnings was a $63 million and a $102 pre-tax gain and a $236 million and a $459 pre-tax gain, respectively. Given that the cash flow hedges had primarily consisted of forward power sales and power swaps and did not include power and gas options or sales, the ineffectiveness of Generation's cash flow hedges was primarily the result of differences between the locational settlement prices of the cash flow hedges and the hedged generating units. | ||||||||||||||||||
The effect of Exelon's former energy-related cash flow hedge activity on pre-tax earnings based on the reclassification adjustment from accumulated OCI to earnings was a $63 million and $102 million pre-tax gain for the three months ended June 30, 2014, and a $141 million and $240 million pre-tax gain for the three and six months ended June 30, 2013. Neither Exelon nor Generation will incur changes in cash flow hedge ineffectiveness in future periods as all energy-related cash flow hedge positions were de-designated prior to the merger date. | ||||||||||||||||||
Economic Hedges (Exelon and Generation). These instruments represent hedges that economically mitigate exposure to fluctuations in commodity prices and include financial options, futures, swaps, physical forward sales and purchases, but for which the fair value or cash flow hedge elections were not made. Additionally, Generation enters into interest rate derivative contracts and foreign exchange currency swaps (“treasury”) to manage the exposure related to the interest rate component of commodity positions and international purchases of commodities in currencies other than U.S. Dollars. Exelon entered into floating-to-fixed forward starting interest rate swaps to manage interest rate risks associated with anticipated future debt issuance related to the proposed merger with PHI. For the three and six months ended June 30, 2014 and 2013, the following pre-tax mark-to-market gains (losses) of certain purchase and sale contracts were reported in operating revenues, purchased, power and fuel expense, or interest expense. For the three and six months ended June 30, 2014 and 2013, the following net pre-tax mark-to-market gains (losses) of certain purchase and sale contracts were reported in operating revenues or purchased power and fuel expense at Exelon and Generation in the Consolidated Statements of Operations and Comprehensive Income and are included in “Net fair value changes related to derivatives” in Exelon's and Generation's Consolidated Statements of Cash Flows. In the tables below, “Change in fair value” represents the change in fair value of the derivative contracts held at the reporting date. The “Reclassification to realized at settlement” represents the recognized change in fair value that was reclassified to realized due to settlement of the derivative during the period. | ||||||||||||||||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Three Months Ended June 30, 2014 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | -124 | $ | 111 | $ | 0 | $ | -13 | $ | 0 | $ | 0 | $ | -13 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | 45 | -42 | 0 | 3 | 0 | 0 | 3 | |||||||||||
Net commodity mark-to-market gains (losses) | $ | -79 | $ | 69 | $ | 0 | $ | -10 | $ | 0 | $ | 0 | $ | -10 | ||||
Change in fair value of treasury positions | $ | -3 | $ | 0 | $ | -1 | $ | -4 | $ | 0 | $ | 0 | $ | -4 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | -1 | 0 | 0 | -1 | 0 | 0 | -1 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | -4 | $ | 0 | $ | -1 | $ | -5 | $ | 0 | $ | 0 | $ | -5 | ||||
Net mark-to-market gains (losses) | $ | -83 | $ | 69 | $ | -1 | $ | -15 | $ | 0 | $ | 0 | $ | -15 | ||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Six Months Ended June 30, 2014 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | -975 | $ | 282 | $ | 0 | $ | -693 | $ | 0 | $ | 0 | $ | -693 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | 137 | -183 | 0 | -46 | 0 | 0 | -46 | |||||||||||
Net commodity mark-to-market gains (losses) | $ | -838 | $ | 99 | $ | 0 | $ | -739 | $ | 0 | $ | 0 | $ | -739 | ||||
Change in fair value of treasury positions | $ | -4 | $ | 0 | $ | -1 | $ | -5 | $ | 0 | $ | 0 | $ | -5 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | -1 | 0 | 0 | -1 | 0 | 0 | -1 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | -5 | $ | 0 | $ | -1 | $ | -6 | $ | 0 | $ | 0 | $ | -6 | ||||
Net mark-to-market gains (losses) | $ | -843 | $ | 99 | $ | -1 | $ | -745 | $ | 0 | $ | 0 | $ | -745 | ||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Three Months Ended June 30, 2013 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | 460 | $ | -77 | $ | 0 | $ | 383 | $ | -13 | $ | 0 | $ | 370 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | 44 | 1 | 0 | 45 | 3 | 0 | 48 | |||||||||||
Net commodity mark-to-market gains (losses) | $ | 504 | $ | -76 | $ | 0 | $ | 428 | $ | -10 | $ | 0 | $ | 418 | ||||
Change in fair value of treasury positions | $ | 0 | $ | 0 | $ | -2 | $ | -2 | $ | 0 | $ | 0 | $ | -2 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | 0 | $ | 0 | $ | -2 | $ | -2 | $ | 0 | $ | 0 | $ | -2 | ||||
Net mark-to-market gains (losses) | $ | 504 | $ | -76 | $ | -2 | $ | 426 | $ | -10 | $ | 0 | $ | 416 | ||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Six Months Ended June 30, 2013 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | -26 | $ | 69 | $ | $ | 43 | $ | -6 | $ | 0 | $ | 37 | |||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | -56 | 38 | -18 | 13 | 0 | -5 | ||||||||||||
Net commodity mark-to-market gains (losses) | $ | -82 | $ | 107 | $ | 0 | $ | 25 | $ | 7 | $ | 0 | $ | 32 | ||||
Change in fair value of treasury positions | $ | 0 | $ | 0 | $ | -3 | $ | -3 | $ | 0 | $ | 0 | $ | -3 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | 0 | $ | 0 | $ | -3 | $ | -3 | $ | 0 | $ | 0 | $ | -3 | ||||
Net mark-to-market gains (losses) | $ | -82 | $ | 107 | $ | -3 | $ | 22 | $ | 7 | $ | 0 | $ | 29 | ||||
Prior to the merger, the five-year financial swap contract between Generation and ComEd was de-designated. As a result, all prospective changes in fair value were recorded to operating revenues and eliminated in consolidation. | ||||||||||||||||||
Proprietary Trading Activities (Exelon and Generation). For the three and six months ended June 30, 2014 and 2013, Exelon and Generation recognized the following net unrealized mark-to-market gains (losses), net realized mark-to-market gains (losses) and total net mark-to-market gains (losses) (before income taxes) relating to mark-to-market activity on commodity derivative instruments entered into for proprietary trading purposes and interest rate derivative contracts to hedge risk associated with the interest rate component of underlying commodity positions. Gains and losses associated with proprietary trading are reported as operating revenue in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income and are included in “Net fair value changes related to derivatives” in Exelon's and Generation's Consolidated Statements of Cash Flows. In the tables below, “Change in fair value” represents the change in fair value of the derivative contracts held at the reporting date. The “Reclassification to realized at settlement” represents the recognized change in fair value that was reclassified to realized due to settlement of the derivative during the period. | ||||||||||||||||||
Three Months Ended | Six Months Ended | |||||||||||||||||
Location on Income | June 30, | June 30, | ||||||||||||||||
Statement | 2014 | 2013 | 2014 | 2013 | ||||||||||||||
Change in fair value of commodity positions | Operating Revenues | $ | 1 | $ | 5 | $ | 0 | $ | 1 | |||||||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | Operating Revenues | -8 | -1 | -7 | 5 | |||||||||||||
Net commodity mark-to-market gains (losses) | Operating Revenues | $ | -7 | $ | 4 | $ | -7 | $ | 6 | |||||||||
Change in fair value of treasury positions | Operating Revenues | $ | 0 | $ | 0 | $ | -1 | $ | 0 | |||||||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | Operating Revenues | 1 | -1 | 1 | -1 | |||||||||||||
Net treasury mark-to-market gains (losses) | Operating Revenues | $ | 1 | $ | -1 | $ | 0 | $ | -1 | |||||||||
Net mark-to-market gains (losses) | Operating Revenues | $ | -6 | $ | 3 | $ | -7 | $ | 5 | |||||||||
Credit Risk (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
The Registrants would be exposed to credit-related losses in the event of non-performance by counterparties that enter into derivative instruments. The credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts at the reporting date. For energy-related derivative instruments, Generation enters into enabling agreements that allow for payment netting with its counterparties, which reduces Generation's exposure to counterparty risk by providing for the offset of amounts payable to the counterparty against amounts receivable from the counterparty. Typically, each enabling agreement is for a specific commodity and so, with respect to each individual counterparty, netting is limited to transactions involving that specific commodity product, except where master netting agreements exist with a counterparty that allow for cross product netting. In addition to payment netting language in the enabling agreement, Generation's credit department establishes credit limits, margining thresholds and collateral requirements for each counterparty, which are defined in the derivative contracts. Counterparty credit limits are based on an internal credit review process that considers a variety of factors, including the results of a scoring model, leverage, liquidity, profitability, credit ratings by credit rating agencies, and risk management capabilities. To the extent that a counterparty's margining thresholds are exceeded, the counterparty is required to post collateral with Generation as specified in each enabling agreement. Generation's credit department monitors current and forward credit exposure to counterparties and their affiliates, both on an individual and an aggregate basis. | ||||||||||||||||||
The following tables provide information on Generation's credit exposure for all derivative instruments, NPNS, and applicable payables and receivables, net of collateral and instruments that are subject to master netting agreements, as of June 30, 2014. The tables further delineate that exposure by credit rating of the counterparties and provide guidance on the concentration of credit risk to individual counterparties. The figures in the tables below excludes credit risk exposure from individual retail counterparties, uranium procurement contracts, and exposure through RTOs, ISOs, NYMEX, ICE and Nodal commodity exchanges, further discussed in Item 3. Quantitative and Qualitative Disclosures About Market Risk. Additionally, the figures in the tables below exclude exposures with affiliates, including net receivables with ComEd, PECO and BGE of $6 million, $23 million and $36 million, respectively. | ||||||||||||||||||
Total | Number of | Net Exposure of | ||||||||||||||||
Exposure | Counterparties | Counterparties | ||||||||||||||||
Before Credit | Credit | Net | Greater than 10% | Greater than 10% | ||||||||||||||
Rating as of June 30, 2014 | Collateral | Collateral(a) | Exposure | of Net Exposure | of Net Exposure | |||||||||||||
Investment grade | $ | 1,095 | $ | 103 | $ | 992 | 1 | $ | 417 | |||||||||
Non-investment grade | 12 | 9 | 3 | 0 | 0 | |||||||||||||
No external ratings | ||||||||||||||||||
Internally rated - investment grade | 286 | 2 | 284 | 1 | 189 | |||||||||||||
Internally rated - non-investment | ||||||||||||||||||
grade | 21 | 4 | 17 | 0 | 0 | |||||||||||||
Total | $ | 1,414 | $ | 118 | $ | 1,296 | 2 | $ | 606 | |||||||||
Net Credit Exposure by Type of Counterparty | As of June 30, 2014 | |||||||||||||||||
Financial institutions | $ | 185 | ||||||||||||||||
Investor-owned utilities, marketers, power producers | 360 | |||||||||||||||||
Energy cooperatives and municipalities | 729 | |||||||||||||||||
Other | 22 | |||||||||||||||||
Total | $ | 1,296 | ||||||||||||||||
As of June 30, 2014, credit collateral held from counterparties where Generation had credit exposure included $112 million of cash and $6 million of letters of credit. | ||||||||||||||||||
ComEd's power procurement contracts provide suppliers with a certain amount of unsecured credit. The credit position is based on forward market prices compared to the benchmark prices. The benchmark prices are the forward prices of energy projected through the contract term and are set at the point of supplier bid submittals. If the forward market price of energy exceeds the benchmark price, the suppliers are required to post collateral for the secured credit portion after adjusting for any unpaid deliveries and unsecured credit allowed under the contract. The unsecured credit used by the suppliers represents ComEd's net credit exposure. As of June 30, 2014, ComEd's net credit exposure to suppliers was approximately $2 million. | ||||||||||||||||||
ComEd is permitted to recover its costs of procuring energy through the Illinois Settlement Legislation. ComEd's counterparty credit risk is mitigated by its ability to recover realized energy costs through customer rates. See Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K for additional information. | ||||||||||||||||||
PECO's supplier master agreements that govern the terms of its electric supply procurement contracts, which define a supplier's performance assurance requirements, allow a supplier to meet its credit requirements with a certain amount of unsecured credit. The amount of unsecured credit is determined based on the supplier's lowest credit rating from the major credit rating agencies and the supplier's tangible net worth. The credit position is based on the initial market price, which is the forward price of energy on the day a transaction is executed, compared to the current forward price curve for energy. To the extent that the forward price curve for energy exceeds the initial market price, the supplier is required to post collateral to the extent the credit exposure is greater than the supplier's unsecured credit limit. The unsecured credit used by the suppliers represents PECO's net credit exposure. As of June 30, 2014, PECO had no net credit exposure with suppliers. | ||||||||||||||||||
PECO is permitted to recover its costs of procuring electric supply through its PAPUC-approved DSP Program. PECO's counterparty credit risk is mitigated by its ability to recover realized energy costs through customer rates. See Note 5 - Regulatory Matters for additional information. | ||||||||||||||||||
PECO's natural gas procurement plan is reviewed and approved annually on a prospective basis by the PAPUC. PECO's counterparty credit risk under its natural gas supply and asset management agreements is mitigated by its ability to recover its natural gas costs through the PGC, which allows PECO to adjust rates quarterly to reflect realized natural gas prices. PECO does not obtain collateral from suppliers under its natural gas supply and asset management agreements. As of June 30, 2014, PECO had credit exposure of $6 million under its natural gas supply and asset management agreements with investment grade suppliers. | ||||||||||||||||||
BGE is permitted to recover its costs of procuring energy through the MDPSC-approved procurement tariffs. BGE's counterparty credit risk is mitigated by its ability to recover realized energy costs through customer rates. See Note 5 – Regulatory Matters for additional information. | ||||||||||||||||||
BGE's full requirement wholesale electric power agreements that govern the terms of its electric supply procurement contracts, which define a supplier's performance assurance requirements, allow a supplier, or its guarantor, to meet its credit requirements with a certain amount of unsecured credit. The amount of unsecured credit is determined based on the supplier's lowest credit rating from the major credit rating agencies and the supplier's tangible net worth, subject to an unsecured credit cap. The credit position is based on the initial market price, which is the forward price of energy on the day a transaction is executed, compared to the current forward price curve for energy. To the extent that the forward price curve for energy exceeds the initial market price, the supplier is required to post collateral to the extent the credit exposure is greater than the supplier's unsecured credit limit. The unsecured credit used by the suppliers represents BGE's net credit exposure. The seller's credit exposure is calculated each business day. As of June 30, 2014, BGE had a net credit exposure of $38 million to suppliers. | ||||||||||||||||||
BGE's regulated gas business is exposed to market-price risk. This market-price risk is mitigated by BGE's recovery of its costs to procure natural gas through a gas cost adjustment clause approved by the MDPSC. BGE does make off-system sales after BGE has satisfied its customers' demands, which are not covered by the gas cost adjustment clause. At June 30, 2014, BGE had credit exposure of $1 million related to off-system sales which is mitigated by parental guarantees, letters of credit, or right to offset clauses within other contracts with those third party suppliers. | ||||||||||||||||||
Collateral and Contingent-Related Features (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
As part of the normal course of business, Generation routinely enters into physical or financially settled contracts for the purchase and sale of electric capacity, energy, fuels, emissions allowances and other energy-related products. Certain of Generation's derivative instruments contain provisions that require Generation to post collateral. Generation also enters into commodity transactions on exchanges (i.e., NYMEX, ICE). The exchanges act as the counterparty to each trade. Transactions on the exchanges must adhere to comprehensive collateral and margining requirements. This collateral may be posted in the form of cash or credit support with thresholds contingent upon Generation's credit rating from each of the major credit rating agencies. The collateral and credit support requirements vary by contract and by counterparty. These credit-risk-related contingent features stipulate that if Generation were to be downgraded or lose its investment grade credit rating (based on its senior unsecured debt rating), it would be required to provide additional collateral. This incremental collateral requirement allows for the offsetting of derivative instruments that are assets with the same counterparty, where the contractual right of offset exists under applicable master netting agreements. In the absence of expressly agreed-to provisions that specify the collateral that must be provided, collateral requested will be a function of the facts and circumstances of the situation at the time of the demand. In this case, Generation believes an amount of several months of future payments (i.e., capacity payments) rather than a calculation of fair value is the best estimate for the contingent collateral obligation, which has been factored into the disclosure below. | ||||||||||||||||||
The aggregate fair value of all derivative instruments with credit-risk-related contingent features in a liability position that are not fully collateralized (excluding transactions on the exchanges that are fully collateralized) is detailed in the table below: | ||||||||||||||||||
Credit-Risk Related Contingent Feature | 30-Jun-14 | 31-Dec-13 | ||||||||||||||||
Gross Fair Value of Derivative Contracts Containing this Feature(a) | $ | -1,102 | $ | -1,056 | ||||||||||||||
Offsetting Fair Value of In-the-Money Contracts Under Master Netting Arrangements(b) | 825 | 846 | ||||||||||||||||
Net Fair Value of Derivative Contracts Containing This Feature(c) | $ | -277 | $ | -210 | ||||||||||||||
Amount represents the gross fair value of out-of-the-money derivative contracts containing credit-risk related contingent features ignoring the effects of master netting agreements. | ||||||||||||||||||
Amount represents the offsetting fair value of in-the-money derivative contracts under legally enforceable master netting agreements with the same counterparty, which reduces the amount of any liability for which a Registrant could potentially be required to post collateral. | ||||||||||||||||||
Amount represents the net fair value of out-of-the-money derivative contracts containing credit-risk related contingent features after considering the mitigating effects of offsetting positions under master netting arrangements and reflects the actual net liability upon which any potential contingent collateral obligations would be based. | ||||||||||||||||||
Generation had cash collateral posted of $623 million and letters of credit posted of $466 million and cash collateral held of $124 million and letters of credit held of $14 million as of June 30, 2014 for counterparties with derivative positions. Generation had cash collateral posted of $72 million and letters of credit posted of $364 million and cash collateral held of $206 million and letters of credit held of $34 million at December 31, 2013 for counterparties with derivative positions. In the event of a credit downgrade below investment grade (i.e., to BB+ by S&P or Ba1 by Moody's), Generation would have been required to post additional collateral of $2.0 billion as of June 30, 2014 and December 31, 2013. These amounts represent the potential additional collateral required after giving consideration to offsetting derivative and non-derivative positions under master netting agreements. | ||||||||||||||||||
Generation's and Exelon's interest rate swaps contain provisions that, in the event of a merger, if Generation's debt ratings were to materially weaken, it would be in violation of these provisions, resulting in the ability of the counterparty to terminate the agreement prior to maturity. Collateralization would not be required under any circumstance. Termination of the agreement could result in a settlement payment by Exelon or the counterparty on any interest rate swap in a net liability position. The settlement amount would be equal to the fair value of the swap on the termination date. As of June 30, 2014, Generation's swaps were in a liability position and Exelon's swaps were in an asset position, with a fair value of $(4) million and $8 million, respectively. | ||||||||||||||||||
See Note 24 – Segment Information of the Exelon 2013 Form 10-K for further information regarding the letters of credit supporting the cash collateral. | ||||||||||||||||||
Generation entered into supply forward contracts with certain utilities, including PECO and BGE, with one-sided collateral postings only from Generation. If market prices fall below the benchmark price levels in these contracts, the utilities are not required to post collateral. However, when market prices rise above the benchmark price levels, counterparty suppliers, including Generation, are required to post collateral once certain unsecured credit limits are exceeded. Under the terms of ComEd's standard block energy contracts, collateral postings are one-sided from suppliers, including Generation, should exposures between market prices and benchmark prices exceed established unsecured credit limits outlined in the contracts. As of June 30, 2014, ComEd held approximately $2 million from suppliers for the purpose of collateral from suppliers in association with energy procurement contracts. Under the terms of ComEd's annual renewable energy contracts, collateral postings are required to cover a fixed value for RECs only. In addition, under the terms of ComEd's long-term renewable energy contracts, collateral postings are required from suppliers for both RECs and energy. The REC portion is a fixed value and the energy portion is one-sided from suppliers should the forward market prices exceed contract prices. As of June 30, 2014, ComEd held approximately $19 million in the form of cash and letters of credit as margin for both the annual and long-term REC obligations. See Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K for additional information. | ||||||||||||||||||
PECO's natural gas procurement contracts contain provisions that could require PECO to post collateral. This collateral may be posted in the form of cash or credit support with thresholds contingent upon PECO's credit rating from the major credit rating agencies. The collateral and credit support requirements vary by contract and by counterparty. As of June 30, 2014, PECO was not required to post collateral for any of these agreements. If PECO lost its investment grade credit rating as of June 30, 2014, PECO could have been required to post approximately $26 million of collateral to its counterparties. | ||||||||||||||||||
PECO's supplier master agreements that govern the terms of its DSP Program contracts do not contain provisions that would require PECO to post collateral. | ||||||||||||||||||
BGE's full requirements wholesale power agreements that govern the terms of its electric supply procurement contracts do not contain provisions that would require BGE to post collateral. | ||||||||||||||||||
BGE's natural gas procurement contracts contain provisions that could require BGE to post collateral. This collateral may be posted in the form of cash or credit support with thresholds contingent upon BGE's credit rating from the major credit rating agencies. The collateral and credit support requirements vary by contract and by counterparty. As of June 30, 2014, BGE was not required to post collateral for any of these agreements. If BGE lost its investment grade credit rating as of June 30, 2014, BGE could have been required to post approximately $73 million of collateral to its counterparties. |
Debt_and_Credit_Agreements_Exe
Debt and Credit Agreements (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||
Jun. 30, 2014 | |||||||||||
Debt and Credit Agreements [Line Items] | ' | ||||||||||
Debt Disclosure [Text Block] | ' | ||||||||||
10. Debt and Credit Agreements (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||
Short-Term Borrowings | |||||||||||
Exelon, ComEd and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. Generation and PECO meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the intercompany money pool. | |||||||||||
The Registrants had the following amounts of commercial paper borrowings outstanding as of June 30, 2014 and December 31, 2013: | |||||||||||
Commercial Paper Borrowings | 30-Jun-14 | 31-Dec-13 | |||||||||
Exelon Corporate | $ | 0 | $ | 0 | |||||||
Generation | 0 | 0 | |||||||||
ComEd | 498 | 184 | |||||||||
PECO | 0 | 0 | |||||||||
BGE | 70 | 135 | |||||||||
Credit Facilities | |||||||||||
Exelon had bank lines of credit under committed credit facilities at June 30, 2014 for short-term financial needs, as follows: | |||||||||||
Type of Credit Facility | Amount (a) | Expiration Dates | Capacity Type | ||||||||
Exelon Corporate | (In billions) | ||||||||||
Syndicated Revolver(b) | $ | 0.5 | May-19 | Letters of credit and cash | |||||||
Generation | |||||||||||
Syndicated Revolver | 5.1 | May-19 | Letters of credit and cash | ||||||||
Syndicated Revolver | 0.2 | Aug-18 | Letters of credit and cash | ||||||||
Bilateral | 0.3 | December 2015 and March 2016 | Letters of credit and cash | ||||||||
Bilateral | 0.1 | Jan-15 | Letters of credit | ||||||||
Bilateral | 0.1 | Oct-14 | Letters of credit and cash | ||||||||
ComEd | |||||||||||
Syndicated Revolver | 1 | Mar-19 | Letters of credit and cash | ||||||||
PECO | |||||||||||
Syndicated Revolver(b) | 0.6 | May-19 | Letters of credit and cash | ||||||||
BGE | |||||||||||
Syndicated Revolver(b) | 0.6 | May-19 | Letters of credit and cash | ||||||||
Total | $ | 8.5 | |||||||||
_____________ | |||||||||||
Excludes additional credit facility agreements for Generation, ComEd, PECO and BGE with aggregate commitments of $50 million, $34 million, $34 million and $5 million, respectively, arranged with minority and community banks located primarily within ComEd's, PECO's and BGE's service territories. These facilities expire on October 18, 2014 and are solely utilized to issue letters of credit. As of June 30, 2014, letters of credit issued under these agreements for Generation, ComEd, PECO and BGE totaled $20 million, $18 million, $21 million and $1 million, respectively. Also, excludes the unsecured bridge credit facility of $7.2 billion to support the PHI transaction discussed below. | |||||||||||
Includes credit facilities for Exelon Corporate, PECO and BGE with aggregate commitments of $22 million, $27 million and $27 million, respectively, that expire in August 2018. | |||||||||||
As of June 30, 2014, there were no borrowings under the Registrants' credit facilities, with the exception of CENG, see discussion below | |||||||||||
On March 28, 2014, ComEd extended for an additional year the expiration date of its unsecured revolving credit facility with aggregate bank commitments of $1.0 billion. Under this facility, ComEd may issue letters of credit in the aggregate amount of up to $500 million. The credit agreement expires on March 28, 2019. The credit facility also allows ComEd to request increases in the aggregate commitments of up to an additional $500 million. Any increases are subject to the approval of the lenders party to the credit agreement in their sole discretion. Costs incurred to extend the facility for ComEd were not material. | |||||||||||
On April 1, 2014, as a result of the CENG integration, a $100 million bilateral CENG credit facility expiring October 2014 is now consolidated in Exelon's and Generation's consolidated financial statements. This facility will be utilized by CENG to fund working capital and capital projects and obtain letters of credit. As of June 30, 2014, CENG borrowed $40 million against its credit facility. | |||||||||||
On May 30, 2014, Exelon, Generation, PECO and BGE extended for an additional year the expiration date of its unsecured revolving credit facility with aggregate bank commitments of $500 million, $5.3 billion, $600 million, $600 million, respectively into May 2019, with the exception of a cumulative amount of $300 million which expires in August 2018. Costs incurred to extend the facility were not material. | |||||||||||
Borrowings under Exelon Corporate's, Generation's, ComEd's, PECO's and BGE's credit agreements bear interest at a rate based upon either the prime rate or a LIBOR-based rate, plus an adder based upon the particular registrant's credit rating. Exelon Corporate, Generation, ComEd, PECO and BGE have adders of 27.5, 27.5, 7.5, 0.0 and 0.0 basis points for prime based borrowings and 127.5, 127.5, 107.5, 90.0 and 100.0 basis points for LIBOR-based borrowings. The maximum adders for prime rate borrowings and LIBOR-based rate borrowings are 65 basis points and 165 basis points, respectively. The credit agreements also require the borrower to pay a facility fee based upon the aggregate commitments under the agreement. The fee varies depending upon the respective credit ratings of the borrower. | |||||||||||
Credit Agreements | |||||||||||
In May 2014, concurrently and in connection with entering into the agreement to acquire PHI, Exelon entered into a credit facility to which the lenders committed to provide Exelon a 364-day senior unsecured bridge credit facility of $7.2 billion to support the contemplated transaction and provide flexibility for timing of permanent financing. The bridge credit facility was subsequently reduced to $4.2 billion as a result of the June 2014 equity issuances discussed below. During the three and six months ended June 30, 2014, Exelon recorded $9 million to interest expense in connection with the bridge facility. It is not currently expected that Exelon will be required to draw upon this credit facility. | |||||||||||
Long-Term Debt | |||||||||||
Issuance of Long-Term Debt | |||||||||||
During the six months ended June 30, 2014, the following long-term debt was issued: | |||||||||||
Company | Type | Interest Rate | Maturity | Amount | Use of Proceeds | ||||||
Exelon | Junior Subordinated Notes | 2.5 | % | 1-Jun-24 | $ | 1,150 | Used to finance a portion of the acquisition of PHI and for general corporate purposes | ||||
Generation | Nuclear Fuel Purchase Contract | 3.35 | % | 30-Jun-18 | $ | 38 | Used for procurement of uranium | ||||
Generation | ExGen Renewables I Project Financing(a) | LIBOR + 4.250% | 6-Feb-21 | $ | 300 | Used for general corporate purposes | |||||
ComEd | Mortgage Bonds Series 115 | 2.15 | % | 15-Jan-19 | $ | 300 | Used to refinance existing mortgage bonds | ||||
ComEd | Mortgage Bonds Series 116 | 4.7 | % | 15-Jan-44 | $ | 350 | Used to refinance existing mortgage bonds | ||||
_______________ | |||||||||||
See ExGen Renewables I Project Financing, non recourse debt, discussed below | |||||||||||
Junior Subordinated Notes | |||||||||||
Exelon issued $1.15 billion of junior subordinated notes in the form of 23 million equity units at a stated amount of $50.00 per unit. Proceeds from the issuance were $1.11 billion, net of a $35 million underwriter fee. The net proceeds are expected to be used to finance a portion of the acquisition of PHI and for general corporate purposes. | |||||||||||
Each equity unit represents an undivided beneficial ownership interest in Exelon's 2.5% junior subordinated notes due in 2024 and a forward equity purchase contract which settles in 2017. The junior subordinated notes are expected to be remarketed in 2017. In connection with the remarketing, Exelon may modify the maturity date of the notes to a date earlier than June 1, 2024 but not earlier than June 1, 2020, remove redemption provisions of the notes, or change the interest rate on the notes, including changing the interest rate from fixed to floating. Investors that participate in the remarketing receive the remarketing proceeds and may use those funds to either settle the equity forward upon settlement date or invest in the remarketed debt and use other funds for the share purchase. Exelon intends to use the remarketing proceeds to repay debt issued or for other corporate purposes as soon as practical following such settlements. If the remarketing fails, holders of the notes will have the right to put their notes to Exelon for an amount equal to the principal amount plus accrued interest. The equity units carry a total annual distribution rate of 6.5%, which is comprised of a quarterly coupon rate of interest of 2.5% and a quarterly contract payment of 4.0% (contract payments). | |||||||||||
Each purchase contract obligates the holder to purchase, and Exelon to sell, for $50.00 a number of shares of Exelon's common stock in accordance with the conversion ratios set forth below: | |||||||||||
If the market price equals or exceeds $43.7484, then 1.1429 shares. | |||||||||||
If the market price is less than $43.7484 but greater than $35.00, a number of shares of common stock having a value, based on the market price, equal to $50.00. | |||||||||||
If the market price is less than or equal to $35.00, then 1.4286 shares. | |||||||||||
A holder's ownership interest in the notes is pledged to Exelon to secure the holder's obligation under the related forward equity purchase contract. If a holder of the forward equity purchase contract chooses at any time to no longer be a holder of the notes, such holder's obligation under the purchase contract must be secured by a U.S. Treasury security. | |||||||||||
At the time of issuance, the $1.15 billion of junior subordinated notes were recorded within Long-term debt on Exelon's Consolidated Balance Sheet. Additionally, at the time of issuance, the present value of the contract payments of $131 million were recorded to Long-term debt, representing the obligation to make contract payments, with an offsetting reduction to Common stock. The obligation for the contract payments will be accreted to interest expense over the 3 year period ending in 2017 in Exelon's Consolidated Statement of Operations and Comprehensive Income. The Long-term debt recorded for the contract payments is considered a non-cash financing transaction that was excluded from Exelon's Consolidated Statements of Cash Flows. Until settlement of the equity purchase contract, earnings per share dilution resulting from the equity unit issuance will be determined under the treasury stock method. | |||||||||||
ExGen Renewables Energy I LLC | |||||||||||
On February 6, 2014, ExGen Renewables I, LLC (EGR), an indirect subsidiary of Exelon and Generation, borrowed $300 million aggregate principal amount pursuant to a non-recourse senior secured loan, due February 6, 2021. The loan bears interest at a variable rate equal to LIBOR plus 4.25%. EGR indirectly owns Continental Wind LLC (Continental Wind). In addition to the financing, EGR entered into interest rate swaps with a notional amount of $240 million to manage a portion of the interest rate exposure in connection with the financing. The assets pledged as collateral related to EGR have a net book value of approximately $796 million as of June 30, 2014, See Note 9 – Derivative Financial Instruments for additional information regarding interest rate swaps. | |||||||||||
During the six months ended June 30, 2013, the following long-term debt was issued: | |||||||||||
Company | Type | Interest Rate | Maturity | Amount | Use of Proceeds | ||||||
Generation | Upstream Gas Lending Agreement | 2.21 | % | 22-Jul-16 | $ | 3 | Used to fund Upstream gas activities | ||||
Generation | DOE Project Financing | 2.535 - 2.922 | % | 5-Jan-37 | $ | 197 | Funding for Antelope Valley Solar Development | ||||
Generation | Energy Efficiency Project Financing | 4.4 | % | 31-Aug-14 | $ | 9 | Funding to install energy conservation measures in Beckley, West Virginia | ||||
BGE | Senior Notes | 3.35 | % | 1-Jul-23 | $ | 300 | Used to partially refinance Notes due July 1, 2013 and for general corporate purposes | ||||
Retirement and Redemptions of Current and Long-Term Debt | |||||||||||
During the six months ended June 30, 2014, the following long-term debt was retired and/or redeemed: | |||||||||||
Company | Type | Interest Rate | Maturity | Amount | |||||||
Generation | 2003 Senior Notes | 5.35 | % | 15-Jan-14 | $ | 500 | |||||
Generation | Pollution Control Loan | 4.1 | % | 1-Jul-14 | $ | 20 | |||||
Generation | Continental Wind Project Financing | 6 | % | 28-Feb-33 | $ | 11 | |||||
Generation | Kennett Square Capital Lease | 7.83 | % | 20-Sep-20 | $ | 2 | |||||
Generation | ExGen Renewables I | 3mL + 4.25 | % | 6-Feb-21 | $ | 3 | |||||
Generation | AVSR | 2.33% - 3.55% | 5-Jan-37 | $ | 1 | ||||||
Generation | Clean Horizons Solar | 2.56 | % | 7-Sep-30 | $ | 1 | |||||
Generation | Sacramento Solar | 2.56 | % | 31-Dec-30 | $ | 1 | |||||
ComEd | Mortgage Bonds Series 110 | 1.63 | % | 15-Jan-14 | $ | 600 | |||||
ComEd | Pollution Control Series 1994C | 5.85 | % | 15-Jan-14 | $ | 17 | |||||
BGE | Rate Stabilization Bonds | 5.72 | % | 1-Apr-17 | $ | 35 | |||||
During the six months ended June 30, 2013, the following long-term debt was retired and/or redeemed: | |||||||||||
Company | Type | Interest Rate | Maturity | Amount | |||||||
Generation | Kennett Square Capital Lease | 7.83 | % | 20-Sep-20 | $ | 1 | |||||
Generation | Solar Revolver | 1.95 | % | 7-Jul-14 | $ | 6 | |||||
Generation | Clean Horizons Solar | 2.563 | % | 7-Sep-30 | $ | 1 | |||||
Generation | (a) | Series A Junior Subordinated Debentures | 8.625 | % | 15-Jun-63 | $ | 450 | ||||
ComEd | First Mortgage Bonds Series 92 | 7.625 | % | 15-Apr-13 | $ | 125 | |||||
BGE | Rate Stabilization Bonds | 5.72 | % | 1-Apr-17 | $ | 33 | |||||
______________ | |||||||||||
(a) Represents debt obligations assumed by Exelon as part of the merger on March 12, 2012 that became callable at face value on June 15, 2013. Exelon and subsidiaries of Generation (former Constellation subsidiaries) assumed intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, which are eliminated in consolidation on Exelon's Consolidated Balance Sheets. The debentures were redeemed and the intercompany loan agreements repaid on June 15, 2013. |
Income_Taxes_Exelon_Generation
Income Taxes (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | |||||||||||||||
Jun. 30, 2014 | ||||||||||||||||
Income Taxes [Line Items] | ' | |||||||||||||||
Income Taxes (Exelon, Generation, ComEd, PECO and BGE) | ' | |||||||||||||||
11. Income Taxes (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||
The effective income tax rate from continuing operations varies from the U.S. Federal statutory rate principally due to the following: | ||||||||||||||||
For the Three Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||
U.S. Federal statutory rate | 35 | % | 35 | % | 35 | % | 35 | % | 35 | % | ||||||
Increase (decrease) due to: | ||||||||||||||||
State income taxes, net of Federal income tax benefit | 2.1 | 1.7 | 4.6 | -0.5 | 4.1 | |||||||||||
Qualified nuclear decommissioning trust fund income | 4.1 | 6 | 0 | 0 | 0 | |||||||||||
Domestic production activities deduction | -2 | -2.9 | 0 | 0 | 0 | |||||||||||
Health care reform legislation | 0 | 0 | 0.2 | 0 | 0.2 | |||||||||||
Amortization of investment tax credit, net deferred taxes | -0.4 | -0.5 | -0.3 | -0.1 | -0.7 | |||||||||||
Plant basis differences | -1.6 | 0 | -0.4 | -13.2 | 5.1 | |||||||||||
Production tax credits and other credits | -0.8 | -1.1 | 0 | 0 | 0 | |||||||||||
Noncontrolling interest | -2 | -2.9 | 0 | 0 | 0 | |||||||||||
Other | -1.2 | -0.4 | 0.2 | 0.3 | -1.3 | |||||||||||
Effective income tax rate | 33.2 | % | 34.9 | % | 39.3 | % | 21.5 | % | 42.4 | % | ||||||
For the Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||
U.S. Federal statutory rate | 35 | % | 35 | % | 35 | % | 35 | % | 35 | % | ||||||
Increase (decrease) due to: | ||||||||||||||||
State income taxes, net of Federal income tax benefit | -0.6 | -14.7 | 5 | 0.4 | 5 | |||||||||||
Qualified nuclear decommissioning trust fund income | 5.9 | 27.7 | 0 | 0 | 0 | |||||||||||
Domestic production activities deduction | -3.2 | -14.8 | 0 | 0 | 0 | |||||||||||
Health care reform legislation | 0.1 | 0 | 0.2 | 0 | 0.2 | |||||||||||
Amortization of investment tax credit, net deferred taxes | -1.2 | -4.9 | -0.3 | -0.1 | -0.3 | |||||||||||
Plant basis differences | -3 | 0 | -0.5 | -10.8 | 0.4 | |||||||||||
Production tax credits and other credits | -2.4 | -11.1 | 0 | 0 | 0 | |||||||||||
Noncontrolling interest | -1.9 | -8.8 | 0 | 0 | 0 | |||||||||||
Other | -3.1 | -8.9 | 0.2 | 0.3 | 0.1 | |||||||||||
Effective income tax rate | 25.6 | % | -0.5 | % | 39.6 | % | 24.8 | % | 40.4 | % | ||||||
For the Three Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||
U.S. Federal statutory rate | 35 | % | 35 | % | 35 | % | 35 | % | 35 | % | ||||||
Increase (decrease) due to: | ||||||||||||||||
State income taxes, net of Federal income tax benefit | 4.1 | 3.5 | 5.6 | 2.9 | 5.6 | |||||||||||
Qualified nuclear decommissioning trust fund income | -1.8 | -2.7 | 0 | 0 | 0 | |||||||||||
Domestic production activities deduction | 0.1 | 0.2 | 0 | 0 | 0 | |||||||||||
Tax exempt income | -0.1 | -0.2 | 0 | 0 | 0 | |||||||||||
Health care reform legislation | 0.1 | 0 | 0.4 | 0 | -0.3 | |||||||||||
Amortization of investment tax credit, net deferred taxes | -1.8 | -2.5 | -0.3 | -0.1 | -0.6 | |||||||||||
Plant basis differences | -1.4 | 0 | -0.4 | -8.6 | -0.7 | |||||||||||
Production tax credits and other credits | -1.4 | -2.2 | 0 | 0 | 0 | |||||||||||
Other | -0.3 | 0.1 | 0.4 | -0.1 | 0 | |||||||||||
Effective income tax rate | 32.5 | % | 31.2 | % | 40.7 | % | 29.1 | % | 39 | % | ||||||
For the Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||
U.S. Federal statutory rate | 35 | % | 35 | % | 35 | % | 35 | % | 35 | % | ||||||
Increase (decrease) due to: | ||||||||||||||||
State income taxes, net of Federal income tax benefit | 8.6 | 0.4 | 4.1 | 2.9 | 5.7 | |||||||||||
Qualified nuclear decommissioning trust fund income | 2.8 | 4.8 | 0 | 0 | 0 | |||||||||||
Domestic production activities deduction | 0 | -0.1 | 0 | 0 | 0 | |||||||||||
Tax exempt income | -0.2 | -0.4 | 0 | 0 | 0 | |||||||||||
Health care reform legislation | 0.2 | 0 | 5.7 | 0 | 0.2 | |||||||||||
Amortization of investment tax credit, net deferred taxes | -3.5 | -5.6 | -4.9 | -0.1 | -0.3 | |||||||||||
Plant basis differences | -3.1 | 0 | -8.7 | -7.5 | -0.6 | |||||||||||
Production tax credits and other credits | -2.8 | -4.9 | -0.3 | 0 | 0 | |||||||||||
Other | 0.1 | 3.1 | 5.5 | 0 | -0.2 | |||||||||||
Effective income tax rate | 37.1 | % | 32.3 | % | 36.4 | % | 30.3 | % | 39.8 | % | ||||||
_____ | ||||||||||||||||
(a) | ||||||||||||||||
Accounting for Uncertainty in Income Taxes | ||||||||||||||||
Exelon, Generation, ComEd, PECO, and BGE have $1,871 million, $1,403 million, $153 million, $44 million, and $0 million, of unrecognized tax benefits as of June 30, 2014, respectively, and $2,175 million, $1,415 million, $324 million, $44 million, and $0 million, of unrecognized tax benefits as of December 31, 2013, respectively. The unrecognized tax benefits as of June 30, 2014 reflect a decrease at Exelon and ComEd primarily attributable to the like-kind exchange and the lease termination position discussed below. | ||||||||||||||||
Reasonably possible the total amount of unrecognized tax benefits could significantly increase or decrease within 12 months after the reporting date | ||||||||||||||||
Nuclear Decommissioning Liabilities (Exelon and Generation) | ||||||||||||||||
AmerGen filed income tax refund claims taking the position that nuclear decommissioning liabilities assumed as part of its acquisition of nuclear power plants are taken into account in determining the tax basis in the assets it acquired. The additional basis results primarily in reduced capital gains or increased capital losses on the sale of assets in nonqualified decommissioning funds and increased tax depreciation and amortization deductions. The IRS disagrees with this position and has disallowed the claims. In November 2008, Generation received a final determination from the Appeals division of the IRS (IRS Appeals) disallowing AmerGen's refund claims. Generation filed a complaint in the United States Court of Federal Claims on February 20, 2009 to contest this determination. During the first and second quarters of 2013, AmerGen and the DOJ completed and filed cross motions for summary judgment. On September 17, 2013, the Court granted the government's motion denying AmerGen's claims for refund. In the first quarter of 2014, Exelon filed an appeal of the decision to the United States Court of Appeals for the Federal Circuit. | ||||||||||||||||
Due to the possibility of final resolution through an appellate decision, Generation continues to believe that it is reasonably possible that the total amount of unrecognized tax benefits may significantly decrease in the next 12 months. | ||||||||||||||||
Settlement of Income Tax Audits | ||||||||||||||||
As of June 30, 2014, Exelon and Generation have approximately $225 million of unrecognized state tax benefits that could significantly decrease within the 12 months after the reporting date as a result of completing federal and state audits and expected statute of limitation expirations that if recognized would decrease the effective tax rate. In January 2014, certain unrecognized tax benefits as of December 31, 2013 were effectively settled and thus resulted in reduced tax expense of $33 million at Generation in the first quarter of 2014. | ||||||||||||||||
Other Income Tax Matters | ||||||||||||||||
Like-Kind Exchange | ||||||||||||||||
Exelon, through its ComEd subsidiary, took a position on its 1999 income tax return to defer approximately $1.2 billion of tax gain on the sale of ComEd's fossil generating assets. The gain was deferred by reinvesting a portion of the proceeds from the sale in qualifying replacement property under the like-kind exchange provisions of the IRC. The like-kind exchange replacement property purchased by Exelon included interests in three municipal-owned electric generation facilities which were properly leased back to the municipalities. The IRS disagreed with this position and asserted that the entire gain of approximately $1.2 billion was taxable in 1999. | ||||||||||||||||
Exelon has been unable to reach agreement with the IRS regarding the dispute over the like-kind exchange position. The IRS has asserted that the Exelon purchase and leaseback transaction is substantially similar to a leasing transaction, known as a SILO, which the IRS does not respect as the acquisition of an ownership interest in property. A SILO is a “listed transaction” that the IRS has identified as a potentially abusive tax shelter under guidance issued in 2005. Accordingly, the IRS has asserted that the sale of the fossil plants followed by the purchase and leaseback of the municipal owned generation facilities does not qualify as a like-kind exchange and the gain on the sale is fully subject to tax. The IRS has also asserted a penalty of approximately $87 million for a substantial understatement of tax. | ||||||||||||||||
Exelon disagrees with the IRS and continues to believe that its like-kind exchange transaction is not the same as or substantially similar to a SILO. Although Exelon has been and remains willing to settle the disagreement on terms commensurate with the hazards of litigation, Exelon does not believe a settlement is possible. Because Exelon believed, as of December 31, 2012, that it was more-likely-than-not that Exelon would prevail in litigation, Exelon and ComEd had no liability for unrecognized tax benefits with respect to the like-kind exchange position. | ||||||||||||||||
On January 9, 2013, the U.S. Court of Appeals for the Federal Circuit reversed the U.S. Court of Federal Claims and reached a decision for the government in Consolidated Edison v. United States. The Court disallowed Consolidated Edison's deductions stemming from its participation in a LILO transaction that the IRS also has characterized as a tax shelter. | ||||||||||||||||
In accordance with applicable accounting standards, Exelon is required to assess whether it is more-likely-than-not that it will prevail in litigation. Exelon continues to believe that its transaction is not a SILO and that it has a strong case on the merits. However, in light of the Consolidated Edison decision and Exelon's current determination that settlement is unlikely, Exelon has concluded that subsequent to December 31, 2012, it is no longer more-likely-than-not that its position will be sustained. As a result, in the first quarter of 2013 Exelon recorded a non-cash charge to earnings of approximately $265 million, which represents the amount of interest expense (after-tax) and incremental state income tax expense for periods through March 31, 2013 that would be payable in the event that Exelon is unsuccessful in litigation. Of this amount, approximately $170 million was recorded at ComEd. Exelon intends to hold ComEd harmless from any unfavorable impacts of the after-tax interest amounts on ComEd's equity. As such, ComEd recorded on its consolidated balance sheet as of March 31, 2013, a $172 million receivable and non-cash equity contributions from Exelon. Exelon and ComEd will continue to accrue interest on the unpaid tax liabilities related to the uncertain tax position, and the charges arising from future interest accruals are not expected to be material to the annual operating earnings of Exelon or ComEd. In addition, ComEd will continue to record non-cash equity contributions from Exelon in the amount of the net after-tax interest charges attributable to ComEd in connection with the like-kind exchange position. Exelon continues to believe that it is unlikely that the IRS's assertion of penalties will ultimately be sustained and therefore no liability for the penalty has been recorded. | ||||||||||||||||
On September 30, 2013, the Internal Revenue Service issued a notice of deficiency to Exelon for the like-kind exchange position. Exelon filed a petition on December 13, 2013 to initiate litigation in the United States Tax Court. Exelon was not required to remit any part of the asserted tax or penalty in order to litigate the issue. The litigation could take three to five years including appeals, if necessary. Decisions in the Tax Court are not controlled by the Federal Circuit's decision in Consolidated Edison. | ||||||||||||||||
In the event of a fully successful IRS challenge to Exelon's like-kind exchange position, the potential tax and after-tax interest, exclusive of penalties, that could become currently payable as of June 30, 2014 may be as much as $830 million, of which approximately $310 million would be attributable to ComEd after consideration of Exelon's agreement to hold ComEd harmless, and the balance at Exelon. Litigation could take several years such that the estimated cash and interest impacts would likely change by a material amount. | ||||||||||||||||
In the first quarter of 2014, Exelon entered into an agreement to terminate its investment in one of the three municipal-owned electric generation properties in exchange for a net early termination amount of $335 million. The termination will result in a 2014 tax payment of approximately $285 million by Exelon, including approximately $155 million by ComEd representing the remaining gain deferred pursuant to the like-kind exchange transaction. In the event of a fully successful IRS challenge to Exelon's like-kind exchange position, Exelon will be required to pay the full amount of tax and after-tax interest discussed in the preceding paragraph but will ultimately be entitled to a refund of the 2014 tax payment. See Note 7 – Impairment of Long Lived Assets for further details. | ||||||||||||||||
Accounting for Final Tangible Property Regulations (Exelon, Generation, ComEd, PECO, and BGE) | ||||||||||||||||
On September 19, 2013, the Treasury Department and the IRS published final regulations regarding the tax treatment of costs incurred to acquire, produce, or improve tangible property. The Registrants have assessed the financial impact of this guidance and do not expect it to have a material impact. Any changes in method of accounting required to conform to the final regulations will be made for the Registrant's 2014 taxable year. | ||||||||||||||||
Accounting for Generation Repairs (Exelon and Generation) | ||||||||||||||||
On April 30, 2013, the IRS issued Revenue Procedure 2013-24 providing guidance for determining the appropriate tax treatment of costs incurred to repair electric generation assets. Generation will change its method of accounting for deducting repairs in accordance with this guidance beginning with its 2014 tax year. Generation has estimated that adoption of the new method will result in a cash tax detriment of approximately $100 - $120 million. |
Asset_Retirement_Obligations_E
Asset Retirement Obligations (Exelon, Generation, ComEd and PECO) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Asset Retirement Obligations [Line Items] | ' | ||||||||||||
Asset Retirement Obligations (Exelon, Generation, ComEd and PECO) | ' | ||||||||||||
12. Nuclear Decommissioning (Exelon and Generation) | |||||||||||||
Nuclear Decommissioning Asset Retirement Obligations | |||||||||||||
Generation has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. To estimate its decommissioning obligation related to its nuclear generating stations for financial accounting and reporting purposes, Generation uses a probability-weighted, discounted cash flow model which, on a unit-by-unit basis, considers multiple outcome scenarios that include significant estimates and assumptions, and are based on decommissioning cost studies, cost escalation rates, probabilistic cash flow models and discount rates. Generation generally updates its ARO annually during the third quarter, unless circumstances warrant more frequent updates, based on its review of updated cost studies and its annual evaluation of cost escalation factors and probabilities assigned to various scenarios. | |||||||||||||
The following table provides a rollforward of the nuclear decommissioning ARO reflected on Exelon's and Generation's Consolidated Balance Sheets from December 31, 2013 to June 30, 2014: | |||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
(a) Includes $9 million as the current portion of the ARO at June 30, 2014 and December 31, 2013 which is included in Other current liabilities on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Includes the fair value of the CENG ARO liability as of April 1, 2014, the date of consolidation. See Note 6 - Investment in Constellation Energy Nuclear Group, LLC for additional information. | |||||||||||||
During the six months ended June 30, 2014, Generation's ARO increased by approximately $1.9 billion. The increase is largely driven by the consolidation of CENG. The fair value of CENG's assets and liabilities recorded in consolidation, including the ARO, was determined based on significant estimates and assumptions that are judgmental in nature. The valuation to assess the fair value of the ARO is considered an initial estimate and will be updated with inputs from a third party engineering firm with corresponding adjustments recorded by the end of 2014. For additional details on the consolidation of CENG, see Note 6 – Investment in Constellation Energy Nuclear Group, LLC. | |||||||||||||
Nuclear Decommissioning Trust Fund Investments | |||||||||||||
NDT funds have been established for each generating station unit to satisfy Generation's nuclear decommissioning obligations. Generally, NDT funds established for a particular unit may not be used to fund the decommissioning obligations of any other unit. | |||||||||||||
The NDT funds associated with the former ComEd, former PECO, former AmerGen and the CENG units have been funded with amounts collected from ComEd customers, PECO customers, and the previous owners of the former AmerGen and the CENG plants, respectively. Based on an ICC order, ComEd ceased collecting amounts from its customers to pay for decommissioning costs. PECO is authorized to collect funds, in revenues, for decommissioning the former PECO nuclear plants through regulated rates, and these collections are scheduled through the operating lives of the former PECO plants. The amounts collected from PECO customers are remitted to Generation and deposited into the NDT funds for the unit for which funds are collected. Every five years, PECO files a rate adjustment with the PAPUC that reflects PECO's calculations of the estimated amount needed to decommission each of the former PECO units based on updated fund balances and estimated decommissioning costs. The rate adjustment is used to determine the amount collectible from PECO customers. The most recent rate adjustment occurred on January 1, 2013, and the effective rates currently yield annual collections of approximately $24 million. The next five-year adjustment is expected to be reflected in rates charged to PECO customers effective January 1, 2018. With respect to the former AmerGen and CENG units, Generation does not collect any amounts, nor is there any mechanism by which Generation can seek to collect additional amounts, from customers. Apart from the contributions made to the NDT funds from amounts previously collected from ComEd and currently collected from PECO customers, Generation has not made contributions to the NDT funds. | |||||||||||||
Any shortfall of funds necessary for decommissioning, determined for each generating station unit, is ultimately required to be funded by Generation, with the exception of a shortfall for the current decommissioning activities at Zion Station, where certain decommissioning activities have been transferred to a third party (see Zion Station Decommissioning below) and the CENG units, where any shortfall is required to be funded by both Generation and EDF. Generation, through PECO, has recourse to collect additional amounts from PECO customers related to a shortfall of NDT funds for the former PECO units, subject to certain limitations and thresholds, as prescribed by an order from the PAPUC. Generally, PECO, and likewise Generation, will not be allowed to collect amounts associated with the first $50 million of any shortfall of trust funds, on an aggregate basis for all former PECO units, compared to decommissioning obligations, as well as 5% of any additional shortfalls. The initial $50 million and up to 5% of any additional shortfalls would be borne by Generation. No recourse exists to collect additional amounts from ComEd customers for the former ComEd units or from the previous owners of the former AmerGen and CENG units. With respect to the former ComEd and PECO units, any funds remaining in the NDTs after all decommissioning has been completed are required to be refunded to ComEd's or PECO's customers, subject to certain limitations that allow sharing of excess funds with Generation related to the former PECO units. With respect to the former AmerGen units and CENG units, Generation retains any funds remaining in the trust funds after decommissioning. However, in connection with CENG's acquisition of the Nine Mile Point and Ginna plants and settlements with certain regulatory agencies, CENG is subject to certain conditions pertaining to nuclear decommissioning trust funds that, if met, could possibly result in obligations to make payments to certain third parties (clawbacks). For Nine Mile Point and Ginna, the clawback provisions are triggered only in the event that the required decommissioning activities are discontinued or not started or completed in a timely manner. In the event that the clawback provisions are triggered for Nine Mile Point, then, depending upon the triggering event, an amount equal to 50% of the total amount withdrawn from the funds for non-decommissioning activities or 50% of any excess funds in the trust funds above the amounts required for decommissioning (including spent fuel management and decommissioning) is to be paid to the Nine Mile Point sellers. In the event that the clawback provisions are triggered for Ginna, then an amount equal to any estimated cost savings realized by not completing any of the required decommissioning activities is to be paid to the Ginna sellers. Generation expects to comply with applicable regulations and timely commence and complete all required decommissioning activities. | |||||||||||||
At June 30, 2014 and December 31, 2013, Exelon and Generation had NDT fund investments totaling $10,437 million and $8,071 million, respectively. | |||||||||||||
The following table provides unrealized gains on NDT funds for the three and six months ended June 30, 2014 and 2013: | |||||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
(a) Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(c) Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||
Interest and dividends on NDT fund investments are recognized when earned and are included in Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. Interest and dividends earned on the NDT fund investments for the Regulatory Agreement Units are eliminated within Other, net in Exelon's and Generation's Consolidated Statement of Operations and Comprehensive Income. | |||||||||||||
See Note 3 – Regulatory Matters and Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K for information regarding regulatory liabilities at ComEd and PECO and intercompany balances between Generation, ComEd and PECO reflecting the obligation to refund to customers any decommissioning-related assets in excess of the related decommissioning obligations. | |||||||||||||
Zion Station Decommissioning. On September 1, 2010, Generation completed an Asset Sale Agreement (ASA) with EnergySolutions Inc. and its wholly owned subsidiaries, EnergySolutions, LLC (EnergySolutions) and ZionSolutions under which ZionSolutions has assumed responsibility for decommissioning Zion Station, which is located in Zion, Illinois and ceased operation in 1998. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for information regarding the specific treatment of assets, including NDT funds, and decommissioning liabilities transferred in the transaction. | |||||||||||||
ZionSolutions is subject to certain restrictions on its ability to request reimbursements from the Zion Station NDT funds as defined within the ASA. Therefore, the transfer of the Zion Station assets did not qualify for asset sale accounting treatment and, as a result, the related NDT funds were reclassified to pledged assets for Zion Station decommissioning within Generation's and Exelon's Consolidated Balance Sheets and will continue to be measured in the same manner as prior to the completion of the transaction. Additionally, the transferred ARO for decommissioning was replaced with a payable to ZionSolutions in Generation's and Exelon's Consolidated Balance Sheets. Changes in the value of the Zion Station NDT assets, net of applicable taxes, will be recorded as a change in the payable to ZionSolutions. At no point will the payable to ZionSolutions exceed the project budget of the costs remaining to decommission Zion Station. Generation has retained its obligation for the SNF. Following ZionSolutions' completion of its contractual obligations, Generation will store the SNF at Zion Station until it is transferred to the DOE for ultimate disposal and will complete all remaining decommissioning activities associated with the SNF dry storage facility. Generation has a liability of approximately $85 million, which is included within the nuclear decommissioning ARO at June 30, 2014. Generation also has retained NDT assets to fund its obligation to maintain and transfer the SNF at Zion Station and to complete all remaining decommissioning activities for the SNF storage facility. Any shortage of funds necessary to maintain the SNF and decommission the SNF storage facility is ultimately required to be funded by Generation. Any Zion Station NDT funds remaining after the completion of all decommissioning activities will be returned to ComEd customers in accordance with the applicable orders. The following table provides the pledged assets and payable to ZionSolutions, and withdrawals by ZionSolutions at June 30, 2014 and December 31, 2013: | |||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
__________ | |||||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
NRC Minimum Funding Requirements. NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in specified minimum amounts to decommission the facility at the end of its life. On April 1, 2013, Generation submitted its NRC-required biennial decommissioning funding status report as of December 31, 2012. As of December 31, 2012, Generation provided adequate funding assurance for all of its units, including Limerick Unit 1, where Generation has in place a $115 million parent guarantee to cover the NRC minimum funding assurance requirements. On October 2, 2013, the NRC issued summary findings from the NRC Staff's review of the 2013 decommissioning funding status reports for all 104 operating reactors, including the Generation operating units. Based on that review, the NRC Staff determined that Generation provided decommissioning funding assurance under the NRC regulations for all of its operating units, including Limerick Unit 1. On March 26, 2014, in accordance with a NRC requirement with respect to units involved in a merger or acquisition, CENG submitted its NRC-required decommissioning funding status report as of December 31, 2013 and no additional financial assurance was required. | |||||||||||||
On March 31, 2014, Generation submitted its NRC required annual decommissioning funding report as of December 31, 2013 for shutdown reactors. This submittal also included the required updated financial tests for the Limerick Unit 1 parent guarantee. There was no change to the amount of the parent guarantee, or the funding status of these reactors. Adequate decommissioning funding assurance is in place for all reactors owned by Generation. | |||||||||||||
On January 31, 2013, Generation received a letter from the NRC indicating that the NRC has identified potential “apparent violations” of its regulations because of alleged inaccuracies in the Decommissioning Funding Status reports for 2005, 2006, 2007, and 2009. The NRC asserted that Generation's status reports deliberately reflected cost estimates for decommissioning its nuclear plants that were less than what the NRC says are the minimum amounts required by NRC regulations. The January 31, 2013 letter from the NRC does not take issue with Generation's current funding status, and as reflected in Generation's April 1, 2013 decommissioning funding status report referenced above, Generation continues to provide adequate funding assurance for each of its units. Generation met with the NRC on April 30, 2013 for a pre-decisional enforcement conference to provide additional information to explain why Generation believes that it complied with the regulatory requirements and did not deliberately or otherwise provide incomplete or inaccurate information in its decommissioning funding status reports. On May 1, 2014, the NRC issued its final determination. Although the NRC determined that these historical status reports did not provide complete and accurate information, the violation of the regulatory requirements was not a deliberate violation. The NRC noted the low safety significance and Generation's corrective actions to satisfy the NRC Staff's expectations and issued a Severity Level IV violation, with no monetary penalty. A Severity Level IV violation is the lowest level of violation. | |||||||||||||
In addition, on June 24, 2013, Exelon received a subpoena from the SEC requesting that Exelon provide the SEC with certain documents generally relating to Exelon and Generation's reporting and funding of the future decommissioning of Generation's nuclear power plants. Exelon and Generation have cooperated with the SEC and provided the requested documents. On February 13, 2014, Exelon received a letter from the SEC confirming that it had concluded its investigation and that no further action was anticipated based on information provided by Exelon. | |||||||||||||
Exelon Generation Co L L C [Member] | ' | ||||||||||||
Asset Retirement Obligations [Line Items] | ' | ||||||||||||
Asset Retirement Obligations (Exelon, Generation, ComEd and PECO) | ' | ||||||||||||
12. Nuclear Decommissioning (Exelon and Generation) | |||||||||||||
Nuclear Decommissioning Asset Retirement Obligations | |||||||||||||
Generation has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. To estimate its decommissioning obligation related to its nuclear generating stations for financial accounting and reporting purposes, Generation uses a probability-weighted, discounted cash flow model which, on a unit-by-unit basis, considers multiple outcome scenarios that include significant estimates and assumptions, and are based on decommissioning cost studies, cost escalation rates, probabilistic cash flow models and discount rates. Generation generally updates its ARO annually during the third quarter, unless circumstances warrant more frequent updates, based on its review of updated cost studies and its annual evaluation of cost escalation factors and probabilities assigned to various scenarios. | |||||||||||||
The following table provides a rollforward of the nuclear decommissioning ARO reflected on Exelon's and Generation's Consolidated Balance Sheets from December 31, 2013 to June 30, 2014: | |||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
(a) Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(c) Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||
Interest and dividends on NDT fund investments are recognized when earned and are included in Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. Interest and dividends earned on the NDT fund investments for the Regulatory Agreement Units are eliminated within Other, net in Exelon's and Generation's Consolidated Statement of Operations and Comprehensive Income. | |||||||||||||
See Note 3 – Regulatory Matters and Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K for information regarding regulatory liabilities at ComEd and PECO and intercompany balances between Generation, ComEd and PECO reflecting the obligation to refund to customers any decommissioning-related assets in excess of the related decommissioning obligations. | |||||||||||||
Zion Station Decommissioning. On September 1, 2010, Generation completed an Asset Sale Agreement (ASA) with EnergySolutions Inc. and its wholly owned subsidiaries, EnergySolutions, LLC (EnergySolutions) and ZionSolutions under which ZionSolutions has assumed responsibility for decommissioning Zion Station, which is located in Zion, Illinois and ceased operation in 1998. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for information regarding the specific treatment of assets, including NDT funds, and decommissioning liabilities transferred in the transaction. | |||||||||||||
ZionSolutions is subject to certain restrictions on its ability to request reimbursements from the Zion Station NDT funds as defined within the ASA. Therefore, the transfer of the Zion Station assets did not qualify for asset sale accounting treatment and, as a result, the related NDT funds were reclassified to pledged assets for Zion Station decommissioning within Generation's and Exelon's Consolidated Balance Sheets and will continue to be measured in the same manner as prior to the completion of the transaction. Additionally, the transferred ARO for decommissioning was replaced with a payable to ZionSolutions in Generation's and Exelon's Consolidated Balance Sheets. Changes in the value of the Zion Station NDT assets, net of applicable taxes, will be recorded as a change in the payable to ZionSolutions. At no point will the payable to ZionSolutions exceed the project budget of the costs remaining to decommission Zion Station. Generation has retained its obligation for the SNF. Following ZionSolutions' completion of its contractual obligations, Generation will store the SNF at Zion Station until it is transferred to the DOE for ultimate disposal and will complete all remaining decommissioning activities associated with the SNF dry storage facility. Generation has a liability of approximately $85 million, which is included within the nuclear decommissioning ARO at June 30, 2014. Generation also has retained NDT assets to fund its obligation to maintain and transfer the SNF at Zion Station and to complete all remaining decommissioning activities for the SNF storage facility. Any shortage of funds necessary to maintain the SNF and decommission the SNF storage facility is ultimately required to be funded by Generation. Any Zion Station NDT funds remaining after the completion of all decommissioning activities will be returned to ComEd customers in accordance with the applicable orders. The following table provides the pledged assets and payable to ZionSolutions, and withdrawals by ZionSolutions at June 30, 2014 and December 31, 2013: | |||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
__________ | |||||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
NRC Minimum Funding Requirements. NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in specified minimum amounts to decommission the facility at the end of its life. On April 1, 2013, Generation submitted its NRC-required biennial decommissioning funding status report as of December 31, 2012. As of December 31, 2012, Generation provided adequate funding assurance for all of its units, including Limerick Unit 1, where Generation has in place a $115 million parent guarantee to cover the NRC minimum funding assurance requirements. On October 2, 2013, the NRC issued summary findings from the NRC Staff's review of the 2013 decommissioning funding status reports for all 104 operating reactors, including the Generation operating units. Based on that review, the NRC Staff determined that Generation provided decommissioning funding assurance under the NRC regulations for all of its operating units, including Limerick Unit 1. On March 26, 2014, in accordance with a NRC requirement with respect to units involved in a merger or acquisition, CENG submitted its NRC-required decommissioning funding status report as of December 31, 2013 and no additional financial assurance was required. | |||||||||||||
On March 31, 2014, Generation submitted its NRC required annual decommissioning funding report as of December 31, 2013 for shutdown reactors. This submittal also included the required updated financial tests for the Limerick Unit 1 parent guarantee. There was no change to the amount of the parent guarantee, or the funding status of these reactors. Adequate decommissioning funding assurance is in place for all reactors owned by Generation. | |||||||||||||
On January 31, 2013, Generation received a letter from the NRC indicating that the NRC has identified potential “apparent violations” of its regulations because of alleged inaccuracies in the Decommissioning Funding Status reports for 2005, 2006, 2007, and 2009. The NRC asserted that Generation's status reports deliberately reflected cost estimates for decommissioning its nuclear plants that were less than what the NRC says are the minimum amounts required by NRC regulations. The January 31, 2013 letter from the NRC does not take issue with Generation's current funding status, and as reflected in Generation's April 1, 2013 decommissioning funding status report referenced above, Generation continues to provide adequate funding assurance for each of its units. Generation met with the NRC on April 30, 2013 for a pre-decisional enforcement conference to provide additional information to explain why Generation believes that it complied with the regulatory requirements and did not deliberately or otherwise provide incomplete or inaccurate information in its decommissioning funding status reports. On May 1, 2014, the NRC issued its final determination. Although the NRC determined that these historical status reports did not provide complete and accurate information, the violation of the regulatory requirements was not a deliberate violation. The NRC noted the low safety significance and Generation's corrective actions to satisfy the NRC Staff's expectations and issued a Severity Level IV violation, with no monetary penalty. A Severity Level IV violation is the lowest level of violation. | |||||||||||||
In addition, on June 24, 2013, Exelon received a subpoena from the SEC requesting that Exelon provide the SEC with certain documents generally relating to Exelon and Generation's reporting and funding of the future decommissioning of Generation's nuclear power plants. Exelon and Generation have cooperated with the SEC and provided the requested documents. On February 13, 2014, Exelon received a letter from the SEC confirming that it had concluded its investigation and that no further action was anticipated based on information provided by Exelon. | |||||||||||||
Nuclear_Decommissioning_Exelon
Nuclear Decommissioning (Exelon and Generation) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Nuclear Decommissioning Disclosure [Line Items] | ' | ||||||||||||
Nuclear Decommissioning (Exelon and Generation) | ' | ||||||||||||
12. Nuclear Decommissioning (Exelon and Generation) | |||||||||||||
Nuclear Decommissioning Asset Retirement Obligations | |||||||||||||
Generation has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. To estimate its decommissioning obligation related to its nuclear generating stations for financial accounting and reporting purposes, Generation uses a probability-weighted, discounted cash flow model which, on a unit-by-unit basis, considers multiple outcome scenarios that include significant estimates and assumptions, and are based on decommissioning cost studies, cost escalation rates, probabilistic cash flow models and discount rates. Generation generally updates its ARO annually during the third quarter, unless circumstances warrant more frequent updates, based on its review of updated cost studies and its annual evaluation of cost escalation factors and probabilities assigned to various scenarios. | |||||||||||||
The following table provides a rollforward of the nuclear decommissioning ARO reflected on Exelon's and Generation's Consolidated Balance Sheets from December 31, 2013 to June 30, 2014: | |||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
(a) Includes $9 million as the current portion of the ARO at June 30, 2014 and December 31, 2013 which is included in Other current liabilities on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Includes the fair value of the CENG ARO liability as of April 1, 2014, the date of consolidation. See Note 6 - Investment in Constellation Energy Nuclear Group, LLC for additional information. | |||||||||||||
During the six months ended June 30, 2014, Generation's ARO increased by approximately $1.9 billion. The increase is largely driven by the consolidation of CENG. The fair value of CENG's assets and liabilities recorded in consolidation, including the ARO, was determined based on significant estimates and assumptions that are judgmental in nature. The valuation to assess the fair value of the ARO is considered an initial estimate and will be updated with inputs from a third party engineering firm with corresponding adjustments recorded by the end of 2014. For additional details on the consolidation of CENG, see Note 6 – Investment in Constellation Energy Nuclear Group, LLC. | |||||||||||||
Nuclear Decommissioning Trust Fund Investments | |||||||||||||
NDT funds have been established for each generating station unit to satisfy Generation's nuclear decommissioning obligations. Generally, NDT funds established for a particular unit may not be used to fund the decommissioning obligations of any other unit. | |||||||||||||
The NDT funds associated with the former ComEd, former PECO, former AmerGen and the CENG units have been funded with amounts collected from ComEd customers, PECO customers, and the previous owners of the former AmerGen and the CENG plants, respectively. Based on an ICC order, ComEd ceased collecting amounts from its customers to pay for decommissioning costs. PECO is authorized to collect funds, in revenues, for decommissioning the former PECO nuclear plants through regulated rates, and these collections are scheduled through the operating lives of the former PECO plants. The amounts collected from PECO customers are remitted to Generation and deposited into the NDT funds for the unit for which funds are collected. Every five years, PECO files a rate adjustment with the PAPUC that reflects PECO's calculations of the estimated amount needed to decommission each of the former PECO units based on updated fund balances and estimated decommissioning costs. The rate adjustment is used to determine the amount collectible from PECO customers. The most recent rate adjustment occurred on January 1, 2013, and the effective rates currently yield annual collections of approximately $24 million. The next five-year adjustment is expected to be reflected in rates charged to PECO customers effective January 1, 2018. With respect to the former AmerGen and CENG units, Generation does not collect any amounts, nor is there any mechanism by which Generation can seek to collect additional amounts, from customers. Apart from the contributions made to the NDT funds from amounts previously collected from ComEd and currently collected from PECO customers, Generation has not made contributions to the NDT funds. | |||||||||||||
Any shortfall of funds necessary for decommissioning, determined for each generating station unit, is ultimately required to be funded by Generation, with the exception of a shortfall for the current decommissioning activities at Zion Station, where certain decommissioning activities have been transferred to a third party (see Zion Station Decommissioning below) and the CENG units, where any shortfall is required to be funded by both Generation and EDF. Generation, through PECO, has recourse to collect additional amounts from PECO customers related to a shortfall of NDT funds for the former PECO units, subject to certain limitations and thresholds, as prescribed by an order from the PAPUC. Generally, PECO, and likewise Generation, will not be allowed to collect amounts associated with the first $50 million of any shortfall of trust funds, on an aggregate basis for all former PECO units, compared to decommissioning obligations, as well as 5% of any additional shortfalls. The initial $50 million and up to 5% of any additional shortfalls would be borne by Generation. No recourse exists to collect additional amounts from ComEd customers for the former ComEd units or from the previous owners of the former AmerGen and CENG units. With respect to the former ComEd and PECO units, any funds remaining in the NDTs after all decommissioning has been completed are required to be refunded to ComEd's or PECO's customers, subject to certain limitations that allow sharing of excess funds with Generation related to the former PECO units. With respect to the former AmerGen units and CENG units, Generation retains any funds remaining in the trust funds after decommissioning. However, in connection with CENG's acquisition of the Nine Mile Point and Ginna plants and settlements with certain regulatory agencies, CENG is subject to certain conditions pertaining to nuclear decommissioning trust funds that, if met, could possibly result in obligations to make payments to certain third parties (clawbacks). For Nine Mile Point and Ginna, the clawback provisions are triggered only in the event that the required decommissioning activities are discontinued or not started or completed in a timely manner. In the event that the clawback provisions are triggered for Nine Mile Point, then, depending upon the triggering event, an amount equal to 50% of the total amount withdrawn from the funds for non-decommissioning activities or 50% of any excess funds in the trust funds above the amounts required for decommissioning (including spent fuel management and decommissioning) is to be paid to the Nine Mile Point sellers. In the event that the clawback provisions are triggered for Ginna, then an amount equal to any estimated cost savings realized by not completing any of the required decommissioning activities is to be paid to the Ginna sellers. Generation expects to comply with applicable regulations and timely commence and complete all required decommissioning activities. | |||||||||||||
At June 30, 2014 and December 31, 2013, Exelon and Generation had NDT fund investments totaling $10,437 million and $8,071 million, respectively. | |||||||||||||
The following table provides unrealized gains on NDT funds for the three and six months ended June 30, 2014 and 2013: | |||||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
(a) Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(c) Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||
Interest and dividends on NDT fund investments are recognized when earned and are included in Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. Interest and dividends earned on the NDT fund investments for the Regulatory Agreement Units are eliminated within Other, net in Exelon's and Generation's Consolidated Statement of Operations and Comprehensive Income. | |||||||||||||
See Note 3 – Regulatory Matters and Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K for information regarding regulatory liabilities at ComEd and PECO and intercompany balances between Generation, ComEd and PECO reflecting the obligation to refund to customers any decommissioning-related assets in excess of the related decommissioning obligations. | |||||||||||||
Zion Station Decommissioning. On September 1, 2010, Generation completed an Asset Sale Agreement (ASA) with EnergySolutions Inc. and its wholly owned subsidiaries, EnergySolutions, LLC (EnergySolutions) and ZionSolutions under which ZionSolutions has assumed responsibility for decommissioning Zion Station, which is located in Zion, Illinois and ceased operation in 1998. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for information regarding the specific treatment of assets, including NDT funds, and decommissioning liabilities transferred in the transaction. | |||||||||||||
ZionSolutions is subject to certain restrictions on its ability to request reimbursements from the Zion Station NDT funds as defined within the ASA. Therefore, the transfer of the Zion Station assets did not qualify for asset sale accounting treatment and, as a result, the related NDT funds were reclassified to pledged assets for Zion Station decommissioning within Generation's and Exelon's Consolidated Balance Sheets and will continue to be measured in the same manner as prior to the completion of the transaction. Additionally, the transferred ARO for decommissioning was replaced with a payable to ZionSolutions in Generation's and Exelon's Consolidated Balance Sheets. Changes in the value of the Zion Station NDT assets, net of applicable taxes, will be recorded as a change in the payable to ZionSolutions. At no point will the payable to ZionSolutions exceed the project budget of the costs remaining to decommission Zion Station. Generation has retained its obligation for the SNF. Following ZionSolutions' completion of its contractual obligations, Generation will store the SNF at Zion Station until it is transferred to the DOE for ultimate disposal and will complete all remaining decommissioning activities associated with the SNF dry storage facility. Generation has a liability of approximately $85 million, which is included within the nuclear decommissioning ARO at June 30, 2014. Generation also has retained NDT assets to fund its obligation to maintain and transfer the SNF at Zion Station and to complete all remaining decommissioning activities for the SNF storage facility. Any shortage of funds necessary to maintain the SNF and decommission the SNF storage facility is ultimately required to be funded by Generation. Any Zion Station NDT funds remaining after the completion of all decommissioning activities will be returned to ComEd customers in accordance with the applicable orders. The following table provides the pledged assets and payable to ZionSolutions, and withdrawals by ZionSolutions at June 30, 2014 and December 31, 2013: | |||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
__________ | |||||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
NRC Minimum Funding Requirements. NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in specified minimum amounts to decommission the facility at the end of its life. On April 1, 2013, Generation submitted its NRC-required biennial decommissioning funding status report as of December 31, 2012. As of December 31, 2012, Generation provided adequate funding assurance for all of its units, including Limerick Unit 1, where Generation has in place a $115 million parent guarantee to cover the NRC minimum funding assurance requirements. On October 2, 2013, the NRC issued summary findings from the NRC Staff's review of the 2013 decommissioning funding status reports for all 104 operating reactors, including the Generation operating units. Based on that review, the NRC Staff determined that Generation provided decommissioning funding assurance under the NRC regulations for all of its operating units, including Limerick Unit 1. On March 26, 2014, in accordance with a NRC requirement with respect to units involved in a merger or acquisition, CENG submitted its NRC-required decommissioning funding status report as of December 31, 2013 and no additional financial assurance was required. | |||||||||||||
On March 31, 2014, Generation submitted its NRC required annual decommissioning funding report as of December 31, 2013 for shutdown reactors. This submittal also included the required updated financial tests for the Limerick Unit 1 parent guarantee. There was no change to the amount of the parent guarantee, or the funding status of these reactors. Adequate decommissioning funding assurance is in place for all reactors owned by Generation. | |||||||||||||
On January 31, 2013, Generation received a letter from the NRC indicating that the NRC has identified potential “apparent violations” of its regulations because of alleged inaccuracies in the Decommissioning Funding Status reports for 2005, 2006, 2007, and 2009. The NRC asserted that Generation's status reports deliberately reflected cost estimates for decommissioning its nuclear plants that were less than what the NRC says are the minimum amounts required by NRC regulations. The January 31, 2013 letter from the NRC does not take issue with Generation's current funding status, and as reflected in Generation's April 1, 2013 decommissioning funding status report referenced above, Generation continues to provide adequate funding assurance for each of its units. Generation met with the NRC on April 30, 2013 for a pre-decisional enforcement conference to provide additional information to explain why Generation believes that it complied with the regulatory requirements and did not deliberately or otherwise provide incomplete or inaccurate information in its decommissioning funding status reports. On May 1, 2014, the NRC issued its final determination. Although the NRC determined that these historical status reports did not provide complete and accurate information, the violation of the regulatory requirements was not a deliberate violation. The NRC noted the low safety significance and Generation's corrective actions to satisfy the NRC Staff's expectations and issued a Severity Level IV violation, with no monetary penalty. A Severity Level IV violation is the lowest level of violation. | |||||||||||||
In addition, on June 24, 2013, Exelon received a subpoena from the SEC requesting that Exelon provide the SEC with certain documents generally relating to Exelon and Generation's reporting and funding of the future decommissioning of Generation's nuclear power plants. Exelon and Generation have cooperated with the SEC and provided the requested documents. On February 13, 2014, Exelon received a letter from the SEC confirming that it had concluded its investigation and that no further action was anticipated based on information provided by Exelon. | |||||||||||||
Exelon Generation Co L L C [Member] | ' | ||||||||||||
Nuclear Decommissioning Disclosure [Line Items] | ' | ||||||||||||
Nuclear Decommissioning (Exelon and Generation) | ' | ||||||||||||
12. Nuclear Decommissioning (Exelon and Generation) | |||||||||||||
Nuclear Decommissioning Asset Retirement Obligations | |||||||||||||
Generation has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. To estimate its decommissioning obligation related to its nuclear generating stations for financial accounting and reporting purposes, Generation uses a probability-weighted, discounted cash flow model which, on a unit-by-unit basis, considers multiple outcome scenarios that include significant estimates and assumptions, and are based on decommissioning cost studies, cost escalation rates, probabilistic cash flow models and discount rates. Generation generally updates its ARO annually during the third quarter, unless circumstances warrant more frequent updates, based on its review of updated cost studies and its annual evaluation of cost escalation factors and probabilities assigned to various scenarios. | |||||||||||||
The following table provides a rollforward of the nuclear decommissioning ARO reflected on Exelon's and Generation's Consolidated Balance Sheets from December 31, 2013 to June 30, 2014: | |||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
(a) Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(c) Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||
Interest and dividends on NDT fund investments are recognized when earned and are included in Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. Interest and dividends earned on the NDT fund investments for the Regulatory Agreement Units are eliminated within Other, net in Exelon's and Generation's Consolidated Statement of Operations and Comprehensive Income. | |||||||||||||
See Note 3 – Regulatory Matters and Note 25 – Related Party Transactions of the Exelon 2013 Form 10-K for information regarding regulatory liabilities at ComEd and PECO and intercompany balances between Generation, ComEd and PECO reflecting the obligation to refund to customers any decommissioning-related assets in excess of the related decommissioning obligations. | |||||||||||||
Zion Station Decommissioning. On September 1, 2010, Generation completed an Asset Sale Agreement (ASA) with EnergySolutions Inc. and its wholly owned subsidiaries, EnergySolutions, LLC (EnergySolutions) and ZionSolutions under which ZionSolutions has assumed responsibility for decommissioning Zion Station, which is located in Zion, Illinois and ceased operation in 1998. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for information regarding the specific treatment of assets, including NDT funds, and decommissioning liabilities transferred in the transaction. | |||||||||||||
ZionSolutions is subject to certain restrictions on its ability to request reimbursements from the Zion Station NDT funds as defined within the ASA. Therefore, the transfer of the Zion Station assets did not qualify for asset sale accounting treatment and, as a result, the related NDT funds were reclassified to pledged assets for Zion Station decommissioning within Generation's and Exelon's Consolidated Balance Sheets and will continue to be measured in the same manner as prior to the completion of the transaction. Additionally, the transferred ARO for decommissioning was replaced with a payable to ZionSolutions in Generation's and Exelon's Consolidated Balance Sheets. Changes in the value of the Zion Station NDT assets, net of applicable taxes, will be recorded as a change in the payable to ZionSolutions. At no point will the payable to ZionSolutions exceed the project budget of the costs remaining to decommission Zion Station. Generation has retained its obligation for the SNF. Following ZionSolutions' completion of its contractual obligations, Generation will store the SNF at Zion Station until it is transferred to the DOE for ultimate disposal and will complete all remaining decommissioning activities associated with the SNF dry storage facility. Generation has a liability of approximately $85 million, which is included within the nuclear decommissioning ARO at June 30, 2014. Generation also has retained NDT assets to fund its obligation to maintain and transfer the SNF at Zion Station and to complete all remaining decommissioning activities for the SNF storage facility. Any shortage of funds necessary to maintain the SNF and decommission the SNF storage facility is ultimately required to be funded by Generation. Any Zion Station NDT funds remaining after the completion of all decommissioning activities will be returned to ComEd customers in accordance with the applicable orders. The following table provides the pledged assets and payable to ZionSolutions, and withdrawals by ZionSolutions at June 30, 2014 and December 31, 2013: | |||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
__________ | |||||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
NRC Minimum Funding Requirements. NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in specified minimum amounts to decommission the facility at the end of its life. On April 1, 2013, Generation submitted its NRC-required biennial decommissioning funding status report as of December 31, 2012. As of December 31, 2012, Generation provided adequate funding assurance for all of its units, including Limerick Unit 1, where Generation has in place a $115 million parent guarantee to cover the NRC minimum funding assurance requirements. On October 2, 2013, the NRC issued summary findings from the NRC Staff's review of the 2013 decommissioning funding status reports for all 104 operating reactors, including the Generation operating units. Based on that review, the NRC Staff determined that Generation provided decommissioning funding assurance under the NRC regulations for all of its operating units, including Limerick Unit 1. On March 26, 2014, in accordance with a NRC requirement with respect to units involved in a merger or acquisition, CENG submitted its NRC-required decommissioning funding status report as of December 31, 2013 and no additional financial assurance was required. | |||||||||||||
On March 31, 2014, Generation submitted its NRC required annual decommissioning funding report as of December 31, 2013 for shutdown reactors. This submittal also included the required updated financial tests for the Limerick Unit 1 parent guarantee. There was no change to the amount of the parent guarantee, or the funding status of these reactors. Adequate decommissioning funding assurance is in place for all reactors owned by Generation. | |||||||||||||
On January 31, 2013, Generation received a letter from the NRC indicating that the NRC has identified potential “apparent violations” of its regulations because of alleged inaccuracies in the Decommissioning Funding Status reports for 2005, 2006, 2007, and 2009. The NRC asserted that Generation's status reports deliberately reflected cost estimates for decommissioning its nuclear plants that were less than what the NRC says are the minimum amounts required by NRC regulations. The January 31, 2013 letter from the NRC does not take issue with Generation's current funding status, and as reflected in Generation's April 1, 2013 decommissioning funding status report referenced above, Generation continues to provide adequate funding assurance for each of its units. Generation met with the NRC on April 30, 2013 for a pre-decisional enforcement conference to provide additional information to explain why Generation believes that it complied with the regulatory requirements and did not deliberately or otherwise provide incomplete or inaccurate information in its decommissioning funding status reports. On May 1, 2014, the NRC issued its final determination. Although the NRC determined that these historical status reports did not provide complete and accurate information, the violation of the regulatory requirements was not a deliberate violation. The NRC noted the low safety significance and Generation's corrective actions to satisfy the NRC Staff's expectations and issued a Severity Level IV violation, with no monetary penalty. A Severity Level IV violation is the lowest level of violation. | |||||||||||||
In addition, on June 24, 2013, Exelon received a subpoena from the SEC requesting that Exelon provide the SEC with certain documents generally relating to Exelon and Generation's reporting and funding of the future decommissioning of Generation's nuclear power plants. Exelon and Generation have cooperated with the SEC and provided the requested documents. On February 13, 2014, Exelon received a letter from the SEC confirming that it had concluded its investigation and that no further action was anticipated based on information provided by Exelon. | |||||||||||||
Retirement_Benefits_Exelon_Gen
Retirement Benefits (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Retirement Benefits [Line Items] | ' | ||||||||||||
Retirement Benefits (Exelon, Generation, ComEd, PECO and BGE) | ' | ||||||||||||
13. Retirement Benefits (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||
Exelon sponsors defined benefit pension plans and other postretirement benefit plans for essentially all Generation, ComEd, PECO, BGE and BSC employees. | |||||||||||||
On April 1, 2014, as a result of the consolidation of CENG into Generation, the obligations associated with CENG's pension and other postretirement plans are reflected in the disclosures below based on an April 1, 2014 valuation. The plans include essentially all employees at CENG. Exelon will assume sponsorship of the CENG pension and other postretirement benefit plans in the third quarter of 2014. | |||||||||||||
Defined Benefit Pension and Other Postretirement Benefits | |||||||||||||
During the first quarter of 2014, Exelon received an updated valuation of several of its pension and other postretirement benefit obligations to reflect actual census data as of January 1, 2014. This valuation resulted in an increase to the pension obligation of $35 million and an increase to the other postretirement benefit obligation of $12 million. Additionally, accumulated other comprehensive loss increased by approximately $12 million (after tax), regulatory assets increased by approximately $34 million, and regulatory liabilities increased by approximately $5 million. During the second quarter of 2014, Exelon received an updated valuation for the remainder of its pension and other postretirement benefit obligations to reflect actual census data as of January 1, 2014. This valuation resulted in an increase to the pension obligation of $13 million and an increase to the other postretirement benefit obligation of $3 million. Additionally, accumulated other comprehensive loss increased by approximately $1 million (after tax) and regulatory assets increased by approximately $15 million. | |||||||||||||
In April 2014, Exelon announced plan design changes for certain other postretirement benefit plans, which required an interim remeasurement of the benefit obligation for those plans using assumptions as of April 30, 2014, including updated discount rates and asset values. The remeasurement is expected to result in a decrease in the net periodic benefit costs for other postretirement benefits of approximately $149 million for the period May 2014 through December 2014 as compared to the net periodic benefit costs that were anticipated based on the January 1, 2014 valuation. The remeasurement resulted in a decrease in Exelon's non-pension postretirement benefit obligations, regulatory assets, and accumulated other compressive loss of approximately $790 million, $240 million, and $259 million (after tax), respectively, and an increase in regulatory liabilities of approximately $125 million. | |||||||||||||
The following tables present the components of Exelon's net periodic benefit costs for the three and six months ended June 30, 2014 and 2013. The 2014 pension benefit cost for Exelon-sponsored plans is calculated using an expected long-term rate of return on plan assets of 7.00% and a discount rate of 4.80%. The 2014 other postretirement benefit cost is calculated using an expected long-term rate of return on plan assets of 6.59% for funded plans and a discount rate of 4.90% for all plans. Certain of the other postretirement benefit plans were remeasured as of April 30, 2014 using an expected long-term rate of return on plan assets of 6.59% and a discount rate of 4.30%. Costs for the three and six months ended June 30, 2014 reflect the impact of this remeasurement. A portion of the net periodic benefit cost is capitalized within the Consolidated Balance Sheets. | |||||||||||||
Pension Benefits | Other Postretirement Benefits | ||||||||||||
Three Months Ended | Three Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014(a) | 2013 | 2014(a) | 2013 | ||||||||||
Service cost | $ | 69 | $ | 79 | $ | 29 | $ | 40 | |||||
Interest cost | 184 | 163 | 45 | 49 | |||||||||
Expected return on assets | -242 | -254 | -38 | -33 | |||||||||
Amortization of: | |||||||||||||
Prior service cost (benefit) | 4 | 4 | -30 | -6 | |||||||||
Actuarial loss | 104 | 141 | 12 | 21 | |||||||||
Net periodic benefit cost | $ | 119 | $ | 133 | $ | 18 | $ | 71 | |||||
Pension Benefits | Other Postretirement Benefits | ||||||||||||
Six Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014(a) | 2013 | 2014(a) | 2013 | ||||||||||
Service cost | $ | 138 | $ | 159 | $ | 61 | $ | 81 | |||||
Interest cost | 367 | 326 | 101 | 97 | |||||||||
Expected return on assets | -483 | -508 | -76 | -66 | |||||||||
Amortization of: | |||||||||||||
Prior service cost (benefit) | 7 | 7 | -34 | -10 | |||||||||
Actuarial loss | 209 | 281 | 20 | 42 | |||||||||
Net periodic benefit cost | $ | 238 | $ | 265 | $ | 72 | $ | 144 | |||||
Excludes components of CENG's net periodic benefit costs for the period April 1, 2014 to June 30, 2014 as presented in the below table. | |||||||||||||
The following tables present the components of net periodic benefit costs for the CENG-sponsored benefit plans for the period April 1, 2014 to June 30, 2014 and reflect the valuation performed as of April 1, 2014. The 2014 pension benefit cost for CENG sponsored plans is calculated using an expected long-term rate of return on plan assets of 7.75% and discount rates ranging from 3.60% - 4.30%. The 2014 other postretirement benefit cost is calculated using a discount rate of 4.55% for all plans. | |||||||||||||
Pension Benefits | Other Postretirement Benefits | ||||||||||||
Service cost | $ | 5 | $ | 1 | |||||||||
Interest cost | 6 | 2 | |||||||||||
Expected return on assets | -9 | 0 | |||||||||||
Net periodic benefit cost | $ | 2 | $ | 3 | |||||||||
The amounts below represent Generation's, ComEd's, PECO's, BGE's and BSC's allocated portion of the pension and postretirement benefit plan costs, which were included in Capital expenditures and Operating and maintenance expense during the three and six months ended June 30, 2014 and 2013. | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Pension and Other Postretirement Benefit Costs | 2014 | 2013 | 2014 | 2013 | |||||||||
Generation(a) | $ | 63 | $ | 87 | $ | 139 | $ | 173 | |||||
ComEd | 40 | 77 | 96 | 154 | |||||||||
PECO | 9 | 10 | 21 | 21 | |||||||||
BGE | 17 | 14 | 33 | 27 | |||||||||
BSC(b) | 13 | 16 | 26 | 34 | |||||||||
(a) Includes $5 million related to CENG for the period April 1, 2014 to June 30, 2014. | |||||||||||||
(b) These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO or BGE amounts above. | |||||||||||||
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006, management of the pension obligation and regulatory implications. Exelon expects to make qualified pension plan contributions of $317 million to its qualified pension plans in 2014, of which Generation, ComEd, PECO and BGE will contribute $169 million, $119 million, $11 million and $0 million, respectively. Exelon's and Generation's expected qualified pension plan contributions above include $53 million and $51 million, respectively, related to CENG-sponsored plans for the period April 1, 2014 to December 31, 2014. Unlike the qualified pension plans, Exelon's non-qualified pension plans are not funded. Exelon expects to make non-qualified pension plan benefit payments of $18 million in 2014, of which Generation, ComEd, PECO and BGE will make payments of $9 million, $1 million, $0 million and $1 million, respectively. Exelon's and Generation's expected non-qualified pension plan benefit payments above include $3 million related to CENG-sponsored plans for the period April 1, to December 31, 2014. | |||||||||||||
Unlike qualified pension plans, other postretirement benefit plans are not subject to statutory minimum contribution requirements and certain plans are not funded. Exelon's management has historically considered several factors in determining the level of contributions to its funded other postretirement benefit plans, including levels of benefit claims paid and regulatory implications (amounts deemed prudent to meet regulator expectations and best assure continued rate recovery). Exelon expects to make other postretirement benefit plan contributions, including benefit payments related to unfunded plans and considering the impact of recent plan design changes, of approximately $290 million in 2014, of which Generation, ComEd, PECO and BGE expect to contribute $128 million, $121 million, $4 million and $18 million, respectively. Exelon's and Generation's expected other postretirement benefit plan payments above include $5 million related to CENG-sponsored plans for the period April 1, 2014 to December 31, 2014. | |||||||||||||
Plan Assets | |||||||||||||
Investment Strategy. On a regular basis, Exelon evaluates its investment strategy to ensure that plan assets will be sufficient to pay plan benefits when due. As part of this ongoing evaluation, Exelon may make changes to its targeted asset allocation and investment strategy. | |||||||||||||
Exelon has developed and implemented a liability hedging investment strategy for its qualified pension plans that has reduced the volatility of its pension assets relative to its pension liabilities. Exelon is likely to continue to gradually increase the liability hedging portfolio as the funded status of its plans improves. The overall objective is to achieve attractive risk-adjusted returns that will balance the liquidity requirements of the plans' liabilities while striving to minimize the risk of significant losses. Trust assets for Exelon's other postretirement plans are managed in a diversified investment strategy that prioritizes maximizing liquidity and returns while minimizing asset volatility. | |||||||||||||
CENG's investment strategy for its qualified pension assets is generally consistent with Exelon's investment strategy as outlined above. | |||||||||||||
Defined Contribution Savings Plans | |||||||||||||
The Registrants participate in various 401(k) defined contribution savings plans that are sponsored by Exelon. The plans are qualified under applicable sections of the IRC and allow employees to contribute a portion of their pre-tax income in accordance with specified guidelines. All Registrants match a percentage of the employee contributions up to certain limits. The following table presents the matching contributions to the savings plans during the three and six months ended June 30, 2014 and 2013: | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Savings Plan Matching Contributions | 2014 | 2013 | 2014 | 2013 | |||||||||
Exelon(a) | $ | 19 | $ | 21 | $ | 48 | $ | 43 | |||||
Generation(a) | 10 | 10 | 24 | 21 | |||||||||
ComEd | 5 | 5 | 12 | 10 | |||||||||
PECO | 2 | 2 | 4 | 4 | |||||||||
BGE | 1 | 2 | 4 | 4 | |||||||||
BSC(b) | 1 | 2 | 4 | 4 | |||||||||
Includes $1 million of matching contributions to CENG's 401(k) defined contribution savings plan for the period April 1, 2014 to June 30, 2014. | |||||||||||||
These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These costs are not included in the Generation, ComEd, PECO or BGE amounts above. | |||||||||||||
Severance_And_Plants_Retiremen
Severance And Plants Retirements (exelon and Generation) | 6 Months Ended | ||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||
Restructuring Charges [Abstract] | ' | ||||||||||||||||
Corporate Restructuring and Plant Retirements (Exelon, Generation, ComEd and PECO) | ' | ||||||||||||||||
14. Severance (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||
The Registrants have an ongoing severance plan under which, in general, the longer an employee worked prior to termination the greater the amount of severance benefits. The Registrants record a liability and expense or regulatory asset for severance once terminations are probable of occurrence and the related severance benefits can be reasonably estimated. For severance benefits that are incremental to its ongoing severance plan (“one-time termination benefits”), the Registrants measure the obligation and record the expense at fair value at the communication date if there are no future service requirements, or, if future service is required to receive the termination benefit, ratably over the required service period. | |||||||||||||||||
CENG Integration-Related Severance | |||||||||||||||||
In connection with the Master Agreement, Generation and CENG recorded a severance accrual in the fourth quarter of 2013 for the anticipated employee position reductions as a result of the integration. The majority of these positions are corporate and support positions at CENG. On April 1, 2014, the date the NOSA was executed, Generation consolidated the CENG severance liability pursuant to the Master Agreement. Generation adjusts its accrual each quarter to reflect its best estimate of remaining severance costs. The estimated amount of severance payments associated with this plan is expected to be approximately $27 million. As of June 30, 2014, management recorded its best estimate of severance benefits, which could be adjusted through the completion of the integration process if additional employee position reductions are identified or if employees resign prior to their agreed upon service termination date. Estimated costs to be incurred after June 30, 2014 are not material. | |||||||||||||||||
Exelon and Generation recorded severance benefit costs associated with the employee reductions of $1 million and $2 million within Operating and maintenance expense for the three and six months ended June 30, 2014, respectively, in their Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||||||
Amounts included in the table below represent the severance liability recorded by Exelon and Generation related to the CENG integration: | |||||||||||||||||
Six Months Ended June 30, 2014 | |||||||||||||||||
Severance Liability | Exelon | Generation | |||||||||||||||
Balance at December 31, 2013 | $ | 2 | $ | 2 | |||||||||||||
Integration of CENG (a) | 19 | 19 | |||||||||||||||
Severance charges | 2 | 2 | |||||||||||||||
Payments | -3 | -3 | |||||||||||||||
Balance at June 30, 2014 | $ | 20 | $ | 20 | |||||||||||||
Includes the fair value of the CENG integration-related obligation as of April 1, 2014, the date of consolidation. See Note 6 – Investment in CENG for additional information. | |||||||||||||||||
Cash payments under the severance plan began in the second quarter of 2014. Substantially all cash payments under the plan are expected to be made by the end of 2014. | |||||||||||||||||
Constellation Merger-Related Severance | |||||||||||||||||
Six Months Ended June 30, 2014 | |||||||||||||||||
Severance Liability | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||
Balance at December 31, 2013 | $ | 53 | $ | 10 | $ | 0 | $ | 0 | $ | 6 | |||||||
Payments | -20 | -2 | 0 | 0 | -3 | ||||||||||||
Balance at June 30, 2014 | $ | 33 | $ | 8 | $ | 0 | $ | 0 | $ | 3 | |||||||
Substantially all cash payments under the plan are expected to be made by the end of 2016. | |||||||||||||||||
Ongoing Severance Plans | |||||||||||||||||
The Registrants provide severance and health and welfare benefits under Exelon's ongoing severance benefit plans to terminated employees in the normal course of business, which are not directly related to the merger with Constellation or with the integration of CENG. These benefits are accrued for when the benefits are considered probable and can be reasonably estimated. | |||||||||||||||||
For the three and six months ended June 30, 2014 and 2013, the Registrants recorded the following severance costs associated with these ongoing severance benefits within Operating and maintenance expense in their Consolidated Statements of Operations and Comprehensive Income: | |||||||||||||||||
Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Three Months Ending | |||||||||||||||||
30-Jun-14 | $ | 4 | $ | 2 | $ | 0 | $ | 0 | $ | 0 | |||||||
30-Jun-13 | $ | 1 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | |||||||
Six Months Ending | |||||||||||||||||
30-Jun-14 | $ | 6 | $ | 4 | $ | 0 | $ | 0 | $ | 0 | |||||||
30-Jun-13 | $ | 2 | $ | 1 | $ | 1 | $ | 0 | $ | 0 | |||||||
For the three and six months ended June 30, 2013, the Registrants recorded the following severance costs associated with these ongoing severance benefits within operating and maintenance expense in their Consolidated Statements of Operations and Comprehensive Income: |
StockBased_Compensation_Plans_
Stock-Based Compensation Plans (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Stock-Based Compensation Plans [Line Items] | ' | ||||||||||||
Stock-Based Compensation Plans (Exelon, Generation, ComEd, PECO and BGE) | ' | ||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Components of Stock-Based Compensation Expense | 2014 | 2013 | 2014 | 2013 | |||||||||
Performance share awards | $ | 12 | $ | 5 | $ | 41 | $ | 32 | |||||
Stock options | 1 | 2 | 3 | 13 | |||||||||
Restricted stock units | 13 | 12 | 49 | 41 | |||||||||
Other stock-based awards | 1 | 1 | 4 | 3 | |||||||||
Total stock-based compensation expense included in | |||||||||||||
operating and maintenance expense | 27 | 20 | 97 | 89 | |||||||||
Income tax benefit | -10 | -8 | -37 | -34 | |||||||||
Total after-tax stock-based compensation expense | $ | 17 | $ | 12 | $ | 60 | $ | 55 | |||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Subsidiaries | 2014 | 2013 | 2014 | 2013 | |||||||||
Generation | $ | 10 | $ | 9 | $ | 38 | $ | 33 | |||||
ComEd | 3 | 2 | 7 | 9 | |||||||||
PECO | 1 | 1 | 4 | 4 | |||||||||
BGE (a) | 1 | 1 | 5 | 4 | |||||||||
BSC (b) | 12 | 7 | 43 | 39 | |||||||||
Total (c) | $ | 27 | $ | 20 | $ | 97 | $ | 89 | |||||
(a) BGE's stock-based compensation expense (pre-tax) for the six months ended June 30, 2013 excludes $2 million of cost incurred in 2012 prior to the closing of Exelon's merger with Constellation on March 12, 2012. This amount is not included in Exelon's stock-based compensation expense for the six months ended June 30, 2013 shown in the tables titled Components of Stock-Based Compensation Expense and Subsidiaries above. | |||||||||||||
(b) These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO and BGE amounts above. | |||||||||||||
(c) The stock-based compensation expense (pre-tax) for the three and six months ended June 30, 2014 reflects the impact of changes to the retirement eligibility requirements for employees participating in the LTIP. In addition, the stock-based compensation expense at ComEd reflects the adoption of the ComEd Key Manager Long-Term Performance Program in 2013 for certain employees, which is not considered stock-based compensation expense under the applicable authoritative guidance. In 2012, these employees participated in the Exelon Restricted Stock Award Program. | |||||||||||||
There were no significant stock-based compensation costs capitalized during the three and six months ended June 30, 2014 and 2013. | |||||||||||||
Restricted Stock Units | |||||||||||||
Restricted stock units are granted under the LTIP with the majority being settled in a specific number of shares of common stock after the service condition has been met. The corresponding cost of services is measured based on the grant date fair value of the restricted stock unit issued. The requisite service period for restricted stock units is generally three to five years. However, certain restricted stock unit awards become fully vested upon the employee reaching retirement-eligibility. | |||||||||||||
16. Common Stock (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||
Equity Securities Offering | |||||||||||||
In June 2014, Exelon marketed an equity offering of 57.5 million shares of its common stock at a public offering price of $35 per share. Concurrently, Exelon entered into forward sale agreements requiring Exelon to, at its election, prior to October 29, 2015; i) physically settle the transaction through the issuance of 57.5 million shares of its common stock in exchange for net proceeds at the forward price specified in the agreements of between approximately $1.85 billion and $1.95 billion, after consideration of underwriters discount of approximately $60 million and subject to certain adjustments as provided in the forward sales agreement, or ii) net settle the transaction either through the payment of cash or shares of its common stock based on the then current market value of the shares minus the value of the shares at the forward price, net of the underwriters discount and the daily accretion rate. No amounts have or will be recorded in Exelon's consolidated financial statements until settlement of the forward sale agreements occurs. At June 30, 2014, if Exelon had elected to net share settle the contract, the maximum number of common shares that would have been required to be issued is approximately 4 million shares at a forward price of $33.94. If Exelon elects to cash settle the contract, the transaction costs will be recorded as a charge to earnings in the period in which it becomes probable that Exelon will cash settle. Otherwise, all transaction costs will be reflected as a reduction to the value of the common stock issued in Exelon's Consolidated Balance Sheet. The net proceeds received upon settlement are expected to be used to finance a portion of the acquisition of PHI and for general corporate purposes. Until settlement, earnings per share dilution resulting from the forward sales agreement, if any, will be determined under the treasury stock method. | |||||||||||||
Concurrent with the forward equity transaction, Exelon also issued $1.15 billion of junior subordinated notes in the form of 23 million equity units. See Note 10 – Debt and Credit Agreements for further information on the equity units. |
Changes_in_Accumulated_Other_C
Changes in Accumulated Other Comprehensive Income (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | |||||||||||||||
Jun. 30, 2014 | Jun. 30, 2013 | |||||||||||||||
Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ||||||||||||||
Accumulated Other Comprehensive Income Loss [Text Block] | ' | [1] | ' | |||||||||||||
Three Months Ended June 30, 2014 | 15. Changes in Accumulated Other Comprehensive Income (Exelon, Generation, and PECO) | |||||||||||||||
Severance Benefits | Exelon | Generation | ||||||||||||||
Severance charges (a) | $ | 1 | $ | 1 | The following tables present changes in accumulated other comprehensive income (loss) (AOCI) by component for the six months ended June 30, 2014 and 2013: | |||||||||||
Total severance benefits | $ | 1 | $ | 1 | ||||||||||||
Six Months Ended June 30, 2014 | ||||||||||||||||
Severance Benefits | Exelon | Generation | ||||||||||||||
Severance charges (a) | $ | 2 | $ | 2 | ||||||||||||
Total severance benefits | $ | 2 | $ | 2 | ||||||||||||
For The Six Months Ended June 30, 2014 | Gains and (Losses) on Cash Flow Hedges | Unrealized Gains and (Losses) on Marketable Securities | Pension and Non-Pension Postretirement Benefit Plan Items | Foreign Currency Items | AOCI of Equity Investments | Total | ||||||||||
Exelon (a) | ||||||||||||||||
Beginning balance | $ | 120 | $ | 2 | $ | -2,260 | $ | -10 | $ | 108 | $ | -2,040 | ||||
OCI before reclassifications | -11 | 1 | 246 | -1 | 11 | 246 | ||||||||||
Amounts reclassified from AOCI (b) | -62 | 0 | 66 | 0 | -116 | -112 | ||||||||||
Net current-period OCI | -73 | 1 | 312 | -1 | -105 | 134 | ||||||||||
Ending balance | $ | 47 | $ | 3 | $ | -1,948 | $ | -11 | $ | 3 | $ | -1,906 | ||||
Generation (a) | ||||||||||||||||
Beginning balance | $ | 114 | $ | 2 | $ | 0 | $ | -10 | $ | 108 | $ | 214 | ||||
OCI before reclassifications | -8 | -1 | 0 | -1 | 11 | 1 | ||||||||||
Amounts reclassified from AOCI (b) | -62 | 0 | 0 | 0 | -116 | -178 | ||||||||||
Net current-period OCI | -70 | -1 | 0 | -1 | -105 | -177 | ||||||||||
Ending balance | $ | 44 | $ | 1 | $ | 0 | $ | -11 | $ | 3 | $ | 37 | ||||
ComEd (a) | ||||||||||||||||
PECO (a) | ||||||||||||||||
Beginning balance | $ | 0 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | $ | 1 | ||||
OCI before reclassifications | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
Net current-period OCI | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
Ending balance | $ | 0 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | $ | 1 | ||||
BGE (a) | ||||||||||||||||
(a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. | ||||||||||||||||
(b) See tables following changes in accumulated other comprehensive income tables for details about these reclassifications. | ||||||||||||||||
Three Months Ended June 30, 2014 | ||||||||||||||||
Details about AOCI components | Items reclassified out of AOCI (a) | Affected line item in the statement where Net Income is presented | ||||||||||||||
Exelon | Generation | |||||||||||||||
Gains on cash flow hedges | ||||||||||||||||
Energy related hedges | $ | 63 | $ | 63 | Operating revenues | |||||||||||
63 | 63 | Total before tax | ||||||||||||||
-25 | -25 | Tax (expense) | ||||||||||||||
$ | 38 | $ | 38 | Net of tax | ||||||||||||
Gains and (losses) on available for sale securities | ||||||||||||||||
Amortization of pension and other | ||||||||||||||||
postretirement benefit plan items | ||||||||||||||||
Prior service costs | $ | 12 | $ | 0 | (b) | |||||||||||
Actuarial losses | -61 | 0 | (b) | |||||||||||||
-49 | 0 | Total before tax | ||||||||||||||
18 | 0 | Tax benefit | ||||||||||||||
$ | -31 | $ | 0 | Net of tax | ||||||||||||
Equity investments | ||||||||||||||||
Reversal of CENG equity method AOCI | $ | 193 | $ | 193 | Gain on consolidation of CENG | |||||||||||
193 | 193 | Total before tax | ||||||||||||||
-77 | -77 | Tax benefit | ||||||||||||||
$ | 116 | $ | 116 | Net of tax | ||||||||||||
Total Reclassifications | ||||||||||||||||
for the period | $ | 123 | $ | 154 | Net of Tax | |||||||||||
Six Months Ended June 30, 2014 | ||||||||||||||||
Details about AOCI components | Items reclassified out of AOCI (a) | Affected line item in the statement where Net Income is presented | ||||||||||||||
Exelon | Generation | |||||||||||||||
Gains on cash flow hedges | ||||||||||||||||
Energy related hedges | $ | 102 | $ | 102 | Operating revenues | |||||||||||
Other cash flow hedges | 0 | 0 | Interest expense | |||||||||||||
102 | 102 | Total before tax | ||||||||||||||
-40 | -40 | Tax (expense) | ||||||||||||||
$ | 62 | $ | 62 | Net of tax | ||||||||||||
Gains and (losses) on available for sale securities | ||||||||||||||||
Amortization of pension and other | ||||||||||||||||
postretirement benefit plan items | ||||||||||||||||
Prior service costs | 10 | 0 | (b) | |||||||||||||
Actuarial losses | $ | -117 | $ | 0 | (b) | |||||||||||
-107 | 0 | Total before tax | ||||||||||||||
41 | 0 | Tax benefit | ||||||||||||||
$ | -66 | $ | 0 | Net of tax | ||||||||||||
Equity investments | ||||||||||||||||
Reversal of CENG equity method AOCI | $ | 193 | $ | 193 | Gain on consolidation of CENG | |||||||||||
193 | 193 | Total before tax | ||||||||||||||
-77 | -77 | Tax benefit | ||||||||||||||
$ | 116 | $ | 116 | Net of tax | ||||||||||||
Total Reclassifications | ||||||||||||||||
for the period | $ | 112 | $ | 178 | Net of Tax | |||||||||||
Three Months Ended June 30, 2013 | ||||||||||||||||
Details about AOCI components | Items reclassified out of AOCI (a) | Affected line item in the statement where Net Income is presented | ||||||||||||||
Exelon | Generation | |||||||||||||||
Gains on cash flow hedges | ||||||||||||||||
Energy related hedges | $ | 141 | $ | 236 | Operating revenues | |||||||||||
Other cash flow hedges | 0 | 1 | Interest expense | |||||||||||||
141 | 237 | Total before tax | ||||||||||||||
-52 | -93 | Tax (expense) | ||||||||||||||
$ | 89 | $ | 144 | Net of tax | ||||||||||||
Gains and (losses) on available for sale securities | ||||||||||||||||
Amortization of pension and other | ||||||||||||||||
postretirement benefit plan items | ||||||||||||||||
Prior service costs | $ | -1 | $ | 0 | (b) | |||||||||||
Actuarial (losses) | -82 | 0 | (b) | |||||||||||||
-83 | 0 | Total before tax | ||||||||||||||
32 | 0 | Tax benefit | ||||||||||||||
$ | -51 | $ | 0 | Net of tax | ||||||||||||
Equity investments | ||||||||||||||||
Reversal of CENG equity method AOCI | $ | -5 | $ | -5 | Equity in losses of unconsolidated affiliates | |||||||||||
-5 | -5 | Total before tax | ||||||||||||||
2 | 2 | Tax benefit | ||||||||||||||
$ | -3 | $ | -3 | Net of tax | ||||||||||||
Total Reclassifications | ||||||||||||||||
for the period | $ | 35 | $ | 141 | Net of Tax | |||||||||||
Six Months Ended June 30, 2013 | ||||||||||||||||
Details about AOCI components | Items reclassified out of AOCI (a) | Affected line item in the statement where Net Income is presented | ||||||||||||||
Exelon | Generation | |||||||||||||||
Gains on cash flow hedges | ||||||||||||||||
Energy related hedges | $ | 240 | $ | 459 | Operating revenues | |||||||||||
Other cash flow hedges | -1 | 1 | Interest (expense) or benefit | |||||||||||||
239 | 460 | Total before tax | ||||||||||||||
-92 | -181 | Tax (expense) | ||||||||||||||
$ | 147 | $ | 279 | Net of tax | ||||||||||||
Gains and (losses) on available for sale securities | ||||||||||||||||
Amortization of pension and other | ||||||||||||||||
postretirement benefit plan items | ||||||||||||||||
Prior service costs | $ | -1 | $ | 0 | (b) | |||||||||||
Actuarial (losses) | -165 | 0 | (b) | |||||||||||||
0 | -166 | 0 | Total before tax | |||||||||||||
0 | 65 | 0 | Tax (expense) | |||||||||||||
$ | -101 | $ | 0 | Net of tax | ||||||||||||
Equity investments | ||||||||||||||||
Reversal of CENG equity method AOCI | $ | -8 | $ | -8 | Equity in losses of unconsolidated affiliates | |||||||||||
-8 | -8 | Total before tax | ||||||||||||||
3 | 3 | Tax benefit | ||||||||||||||
$ | -5 | $ | -5 | Net of tax | ||||||||||||
Total Reclassifications | ||||||||||||||||
for the period | $ | 41 | $ | 274 | Net of Tax | |||||||||||
(a) All amounts are net of tax. Amounts in parenthesis represent a decrease in net income. | ||||||||||||||||
(b) This accumulated other comprehensive income component is included in the computation of net periodic pension and OPEB cost (see Note 13 for additional details). | ||||||||||||||||
Three Months Ended | Six Months Ended | |||||||||||||||
June 30, | June 30, | |||||||||||||||
2014 | 2013 | 2014 | 2013 | |||||||||||||
Exelon | ||||||||||||||||
Pension and non-pension postretirement benefit plans: | ||||||||||||||||
Prior service benefit reclassified to periodic benefit cost | $ | 5 | $ | 0 | $ | 5 | $ | 1 | ||||||||
Actuarial loss reclassified to periodic cost | -23 | -32 | -46 | -66 | ||||||||||||
Pension and non-pension post retirement benefit plans valuation adjustment | -166 | -1 | -159 | -50 | ||||||||||||
Change in unrealized loss on cash flow hedges | 28 | 45 | 48 | 77 | ||||||||||||
Change in unrealized income on equity investments | 77 | -5 | 70 | -23 | ||||||||||||
Deferred compensation unit valuation adjustment | 0 | -6 | 0 | -6 | ||||||||||||
Total | $ | -79 | $ | 1 | $ | -82 | $ | -67 | ||||||||
Generation | ||||||||||||||||
Change in unrealized loss on cash flow hedges | $ | 25 | $ | 89 | $ | 44 | $ | 175 | ||||||||
Change in unrealized income on equity investments | 77 | -5 | 70 | -23 | ||||||||||||
Change in marketable securities | 0 | 0 | -2 | 0 | ||||||||||||
Total | $ | 102 | $ | 84 | $ | 112 | $ | 152 | ||||||||
[1] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in net income. |
Common_Stock_Exelon_Generation
Common Stock (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Common Stock [Line Items] | ' | ||||||||||||
Stock-Based Compensation Plans (Exelon, Generation, ComEd, PECO and BGE) | ' | ||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Components of Stock-Based Compensation Expense | 2014 | 2013 | 2014 | 2013 | |||||||||
Performance share awards | $ | 12 | $ | 5 | $ | 41 | $ | 32 | |||||
Stock options | 1 | 2 | 3 | 13 | |||||||||
Restricted stock units | 13 | 12 | 49 | 41 | |||||||||
Other stock-based awards | 1 | 1 | 4 | 3 | |||||||||
Total stock-based compensation expense included in | |||||||||||||
operating and maintenance expense | 27 | 20 | 97 | 89 | |||||||||
Income tax benefit | -10 | -8 | -37 | -34 | |||||||||
Total after-tax stock-based compensation expense | $ | 17 | $ | 12 | $ | 60 | $ | 55 | |||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Subsidiaries | 2014 | 2013 | 2014 | 2013 | |||||||||
Generation | $ | 10 | $ | 9 | $ | 38 | $ | 33 | |||||
ComEd | 3 | 2 | 7 | 9 | |||||||||
PECO | 1 | 1 | 4 | 4 | |||||||||
BGE (a) | 1 | 1 | 5 | 4 | |||||||||
BSC (b) | 12 | 7 | 43 | 39 | |||||||||
Total (c) | $ | 27 | $ | 20 | $ | 97 | $ | 89 | |||||
(a) BGE's stock-based compensation expense (pre-tax) for the six months ended June 30, 2013 excludes $2 million of cost incurred in 2012 prior to the closing of Exelon's merger with Constellation on March 12, 2012. This amount is not included in Exelon's stock-based compensation expense for the six months ended June 30, 2013 shown in the tables titled Components of Stock-Based Compensation Expense and Subsidiaries above. | |||||||||||||
(b) These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO and BGE amounts above. | |||||||||||||
(c) The stock-based compensation expense (pre-tax) for the three and six months ended June 30, 2014 reflects the impact of changes to the retirement eligibility requirements for employees participating in the LTIP. In addition, the stock-based compensation expense at ComEd reflects the adoption of the ComEd Key Manager Long-Term Performance Program in 2013 for certain employees, which is not considered stock-based compensation expense under the applicable authoritative guidance. In 2012, these employees participated in the Exelon Restricted Stock Award Program. | |||||||||||||
There were no significant stock-based compensation costs capitalized during the three and six months ended June 30, 2014 and 2013. | |||||||||||||
Restricted Stock Units | |||||||||||||
Restricted stock units are granted under the LTIP with the majority being settled in a specific number of shares of common stock after the service condition has been met. The corresponding cost of services is measured based on the grant date fair value of the restricted stock unit issued. The requisite service period for restricted stock units is generally three to five years. However, certain restricted stock unit awards become fully vested upon the employee reaching retirement-eligibility. | |||||||||||||
16. Common Stock (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||
Equity Securities Offering | |||||||||||||
In June 2014, Exelon marketed an equity offering of 57.5 million shares of its common stock at a public offering price of $35 per share. Concurrently, Exelon entered into forward sale agreements requiring Exelon to, at its election, prior to October 29, 2015; i) physically settle the transaction through the issuance of 57.5 million shares of its common stock in exchange for net proceeds at the forward price specified in the agreements of between approximately $1.85 billion and $1.95 billion, after consideration of underwriters discount of approximately $60 million and subject to certain adjustments as provided in the forward sales agreement, or ii) net settle the transaction either through the payment of cash or shares of its common stock based on the then current market value of the shares minus the value of the shares at the forward price, net of the underwriters discount and the daily accretion rate. No amounts have or will be recorded in Exelon's consolidated financial statements until settlement of the forward sale agreements occurs. At June 30, 2014, if Exelon had elected to net share settle the contract, the maximum number of common shares that would have been required to be issued is approximately 4 million shares at a forward price of $33.94. If Exelon elects to cash settle the contract, the transaction costs will be recorded as a charge to earnings in the period in which it becomes probable that Exelon will cash settle. Otherwise, all transaction costs will be reflected as a reduction to the value of the common stock issued in Exelon's Consolidated Balance Sheet. The net proceeds received upon settlement are expected to be used to finance a portion of the acquisition of PHI and for general corporate purposes. Until settlement, earnings per share dilution resulting from the forward sales agreement, if any, will be determined under the treasury stock method. | |||||||||||||
Concurrent with the forward equity transaction, Exelon also issued $1.15 billion of junior subordinated notes in the form of 23 million equity units. See Note 10 – Debt and Credit Agreements for further information on the equity units. |
Earnings_Per_Share_and_Equity_
Earnings Per Share and Equity (Exelon) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Earnings Per Share and Equity [Abstract] | ' | ||||||||||||
Earnings Per Share and Equity (Exelon) | ' | ||||||||||||
17. Earnings Per Share and Equity (Exelon) | |||||||||||||
Earnings per Share (Exelon) | |||||||||||||
Diluted earnings per share is calculated by dividing Net income attributable to common shareholders by the weighted average number of shares of common stock outstanding adjusted to include the potentially dilutive effect of stock options, performance share awards, restricted stock outstanding under Exelon's LTIPs, and Exelon's equity forward sales agreement, which is further described in Note 10 – Debt and Credit Agreements. The following table sets forth the components of basic and diluted earnings per share and shows the effect of these stock options, performance share awards and restricted stock on the weighted average number of shares outstanding (in millions) used in calculating diluted earnings per share: | |||||||||||||
Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net income attributable to common shareholders | $ | 522 | $ | 490 | $ | 612 | $ | 486 | |||||
Average common shares outstanding — basic | 860 | 856 | 860 | 856 | |||||||||
Potentially dilutive effect of stock options, performance share awards, | |||||||||||||
restricted stock, and Exelon's equity forward sales agreement | 4 | 4 | 3 | 3 | |||||||||
Average common shares outstanding — diluted | 864 | 860 | 863 | 859 | |||||||||
The number of stock options not included in the calculation of diluted common shares outstanding due to their antidilutive effect was approximately 16 million for the three and six months ended June 30, 2014 and 17 million and 18 million for the three and six months ended June 30, 2013, respectively. | |||||||||||||
Under share repurchase programs, 35 million shares of common stock are held as treasury stock with a cost of $2.3 billion as of June 30, 2014. In 2008, Exelon management decided to defer indefinitely any share repurchases. | |||||||||||||
Preferred Securities Redemption (Exelon and PECO) | |||||||||||||
On March 25, 2013, PECO announced that it issued a notice of redemption for all of its outstanding preferred securities with a redemption date of May 1, 2013. PECO had $87 million of cumulative preferred securities that were redeemable at its option at any time for the redemption price established when each series of securities were issued. The redemption premium of $6 million is treated as a reduction to Net income to arrive at Net income attributable to common shareholders utilized in the calculation of the earnings per share for Exelon. As a result of the redemption, PECO is now indirectly, wholly-owned by Exelon. |
Commitments_and_Contingencies_
Commitments and Contingencies (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||||
Commitments And Contingencies Tables Disclosure [Line Items] | ' | ||||||||||||||||||||
Commitments and Contingencies (Exelon, Generation, ComEd, PECO and BGE) | ' | ||||||||||||||||||||
18. Commitments and Contingencies (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||||||
The following is an update to the current status of commitments and contingencies set forth in Note 22 of the Exelon 2013 Form 10-K. | |||||||||||||||||||||
Commitments | |||||||||||||||||||||
Energy Commitments | |||||||||||||||||||||
As of June 30, 2014, Generation's commitments relating to its purchases from unaffiliated utilities and others of energy, capacity, transmission rights and RECs, are as indicated in the following table: | |||||||||||||||||||||
Net Capacity | REC | Transmission Rights | |||||||||||||||||||
Purchases (a) | Purchases (b) | Purchases (c) | Total | ||||||||||||||||||
2014 | $ | 208 | $ | 43 | $ | 13 | $ | 264 | |||||||||||||
2015 | 353 | 163 | 13 | 529 | |||||||||||||||||
2016 | 269 | 122 | 2 | 393 | |||||||||||||||||
2017 | 208 | 59 | 2 | 269 | |||||||||||||||||
2018 | 98 | 13 | 2 | 113 | |||||||||||||||||
Thereafter | 388 | 4 | 32 | 424 | |||||||||||||||||
Total | $ | 1,524 | $ | 404 | $ | 64 | $ | 1,992 | |||||||||||||
(a) Net capacity purchases include PPAs and other capacity contracts including those that are accounted for as operating leases. Amounts presented in the commitments represent Generation's expected payments under these arrangements at June 30, 2014, net of fixed capacity payments expected to be received by Generation under contracts to resell such acquired capacity to third parties under long-term capacity sale contracts. Expected payments include certain fixed capacity charges which may be reduced based on plant availability. | |||||||||||||||||||||
(b) The table excludes renewable energy purchases that are contingent in nature. | |||||||||||||||||||||
(c) Transmission rights purchases include estimated commitments for additional transmission rights that will be required to fulfill firm sales contracts. | |||||||||||||||||||||
ComEd's, PECO's and BGE's electric supply procurement, curtailment services, REC and AEC purchase commitments, as applicable, as of June 30, 2014 are as follows: | |||||||||||||||||||||
Expiration within | |||||||||||||||||||||
2019 | |||||||||||||||||||||
Total | 2014 | 2015 | 2016 | 2017 | 2018 | and beyond | |||||||||||||||
ComEd | |||||||||||||||||||||
Electric supply procurement (a) | $ | 740 | $ | 217 | $ | 232 | $ | 151 | $ | 140 | $ | 0 | $ | 0 | |||||||
Renewable energy and RECs (b) | 1,548 | 32 | 73 | 76 | 77 | 78 | 1,212 | ||||||||||||||
PECO | |||||||||||||||||||||
Electric supply procurement (c) | 550 | 381 | 169 | 0 | 0 | 0 | 0 | ||||||||||||||
AECs (d) | 13 | 1 | 2 | 2 | 2 | 2 | 4 | ||||||||||||||
BGE | |||||||||||||||||||||
Electric supply procurement (e) | 1,320 | 448 | 632 | 240 | 0 | 0 | 0 | ||||||||||||||
Curtailment services (f) | 136 | 21 | 40 | 34 | 29 | 12 | 0 | ||||||||||||||
(a) ComEd entered into various contracts for the procurement of electricity that started to expire in 2012, and will continue to expire through 2017. ComEd is permitted to recover its electric supply procurement costs from retail customers with no mark-up. As of June 30, 2014, ComEd has completed the ICC-approved procurement process for a portion of its energy requirements through the periods ending May 31, 2015, 2016 and 2017. | |||||||||||||||||||||
(b) Primarily related to ComEd 20-year contracts for renewable energy and RECs beginning in June 2012. ComEd is permitted to recover its renewable energy and REC costs from retail customers with no mark-up. The commitments represent the maximum settlements with suppliers for renewable energy and RECs under the existing contract terms. | |||||||||||||||||||||
(c) PECO entered into various contracts for the procurement of electric supply to serve its default service customers that expire between 2014 and 2016. PECO is permitted to recover its electric supply procurement costs from default service customers with no mark-up in accordance with its PAPUC-approved DSP Programs. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
(d) PECO is subject to requirements related to the use of alternative energy resources established by the AEPS Act. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
(e) BGE entered into various contracts for the procurement of electricity that expire between 2014 through 2016. The cost of power under these contracts is recoverable under MDPSC approved fuel clauses. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
(f) BGE has entered into various contracts with curtailment services providers related to transactions in PJM's capacity market. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
Fuel Purchase Obligations | |||||||||||||||||||||
In addition to the energy commitments described above, Generation has commitments to purchase fuel supplies for nuclear and fossil generation. Beginning this quarter, all of CENG's nuclear fuel commitments are disclosed within the Generation line below, since CENG is now fully consolidated by Generation. PECO and BGE have commitments to purchase natural gas related to transportation, storage capacity and services to serve customers in their gas distribution service territory. As of June 30, 2014, these net commitments were as follows: | |||||||||||||||||||||
Expiration within | |||||||||||||||||||||
2019 | |||||||||||||||||||||
Total | 2014 | 2015 | 2016 | 2017 | 2018 | and beyond | |||||||||||||||
Generation | $ | 9,973 | $ | 694 | $ | 1,526 | $ | 1,230 | $ | 1,276 | $ | 929 | $ | 4,318 | |||||||
PECO | 411 | 90 | 112 | 93 | 35 | 15 | 66 | ||||||||||||||
BGE | 618 | 64 | 83 | 82 | 65 | 53 | 271 | ||||||||||||||
Other Purchase Obligations | |||||||||||||||||||||
The Registrants' other purchase obligations as of June 30, 2014, which primarily represent commitments for services, materials and information technology, are as follows: | |||||||||||||||||||||
Expiration within | |||||||||||||||||||||
2019 | |||||||||||||||||||||
Total | 2014 | 2015 | 2016 | 2017 | 2018 | and beyond | |||||||||||||||
Exelon | $ | 568 | $ | 140 | $ | 171 | $ | 65 | $ | 55 | $ | 37 | $ | 100 | |||||||
Generation | 474 | 110 | 155 | 52 | 47 | 31 | 79 | ||||||||||||||
ComEd (a) | 53 | 16 | 8 | 5 | 5 | 5 | 14 | ||||||||||||||
PECO (a) | 28 | 12 | 4 | 3 | 1 | 1 | 7 | ||||||||||||||
BGE (a) | 12 | 1 | 4 | 5 | 2 | 0 | 0 | ||||||||||||||
____________________ | |||||||||||||||||||||
(a) Purchase obligations include commitments related to smart meter installation. See Note 5 – Regulatory Matters for additional information. | |||||||||||||||||||||
Construction Commitments | |||||||||||||||||||||
Generation has committed to the construction of the Antelope Valley solar PV facility in Los Angeles County, California. The first portion of the project began operations in December 2012, with six additional blocks coming online in 2013. As of June 30, 2014, the facility was fully operational. Generation has no further remaining construction commitments for the project. | |||||||||||||||||||||
On July 3, 2013, Generation executed a Turbine Supply Agreement to expand its Beebe wind project in Michigan. The estimated remaining commitment under the contract is $53 million and achievement of commercial operations is expected in the fourth quarter of 2014. | |||||||||||||||||||||
On July 26, 2013, Generation executed an engineering procurement and construction contract to expand its Perryman, Maryland generation site with 120 MW of new natural gas-fired generation to satisfy certain Exelon/Constellation merger commitments. The estimated remaining commitment under the contract is $84 million and achievement of commercial operation is expected in 2015. This project will satisfy a portion of Exelon's commitment to Maryland. See Note 4 – Mergers and Acquisitions of the Exelon 2013 Form 10-K for additional information on commitments to develop or assist in development of new generation in Maryland resulting from the Exelon/Constellation merger. | |||||||||||||||||||||
On December 27, 2013, Generation executed a Turbine Supply Agreement for construction of the 40 MW Fourmile Wind project in western Maryland. The estimated remaining commitment under the contract is $38 million and achievement of commercial operations is expected in the fourth quarter 2014. In the first quarter of 2014, Generation approved expansion of the Fourmile project to 40 MW. This project will satisfy a portion of Exelon's 125 MW Tier I land-based renewables commitment in Maryland. See Note 4 – Mergers and Acquisitions of the Exelon 2013 Form 10-K for additional information on commitments to develop or assist in development of new generation in Maryland resulting from the Exelon/Constellation merger. | |||||||||||||||||||||
Refer to Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K for information on investment programs associated with regulatory mandates, such as ComEd's Infrastructure Investment Plan under EIMA, PECO's Smart Meter Procurement and Installation Plan and BGE's comprehensive smart grid initiative. | |||||||||||||||||||||
Constellation Merger Commitments | |||||||||||||||||||||
In February 2012, the MDPSC issued an Order approving the Exelon and Constellation merger. As part of the MDPSC Order, Exelon agreed to provide a package of benefits to BGE customers, the City of Baltimore and the State of Maryland, resulting in an estimated direct investment in the State of Maryland of approximately $ 1 billion. | |||||||||||||||||||||
The direct investment estimate includes $95 million to $120 million relating to the construction of a headquarters building in Baltimore for Generation's competitive energy businesses. On March 20, 2013, Generation signed a 20 year lease agreement that was contingent upon the developer obtaining all required approvals, permits and financing for the construction of a building in Baltimore, Maryland. The operating lease became effective during the second quarter of 2014 when these outstanding contingencies were met by the developer. Generation's total commitments under the lease agreement are $0 related to 2014 and 2015, and $9 million, $12 million, $12 million, and $270 million related to 2016, 2017, 2018, and 2019 and thereafter. | |||||||||||||||||||||
The direct investment commitment also includes $600 million to $650 million relating to Exelon and Generation's development or assistance in the development of 285—300 MWs of new generation in Maryland, which is expected to be completed over a period of 10 years. The MDPSC Order contemplates various options for complying with the new generation development commitments, including building or acquiring generating assets, making subsidy or compliance payments, or in circumstances in which the generation build is delayed, making liquidated damages payments. Exelon and Generation expect that the majority of these commitments will be satisfied by building or acquiring generating assets and, therefore, will be primarily capital in nature and recognized as incurred. If in the future Exelon determines that it is probable that it will make subsidy, compliance or liquidated damages payments related to the new generation development commitments, Exelon will record a liability at that time. As of June 30, 2014, it is reasonably possible that Exelon will be required to make subsidy or liquidated damages payments of approximately $40 million rather than build one of the generation projects contemplated by the commitments, given that the generation build is dependent upon the passage of legislation and other conditions that Exelon does not control. | |||||||||||||||||||||
Contingencies | |||||||||||||||||||||
Commercial Commitments | |||||||||||||||||||||
The Registrants' commercial commitments as of June 30, 2014, representing commitments potentially triggered by future events were as follows: | |||||||||||||||||||||
Exelon | Generation | ComEd | PECO | BGE | |||||||||||||||||
Letters of credit (non-debt) (a) | $ | 1,514 | $ | 1,470 | $ | 19 | $ | 22 | $ | 1 | |||||||||||
Guarantees | 4,706 | (b) | 1,346 | (c) | 206 | (d) | 181 | (e) | 259 | (f) | |||||||||||
Nuclear insurance premiums (g) | 3,559 | 3,559 | 0 | 0 | 0 | ||||||||||||||||
Underwriters discount (h) | 60 | 0 | 0 | 0 | 0 | ||||||||||||||||
Total commercial commitments | $ | 9,839 | $ | 6,375 | $ | 225 | $ | 203 | $ | 260 | |||||||||||
(a) Non-debt letters of credit maintained to provide credit support for certain transactions as requested by third parties. | |||||||||||||||||||||
(b) Primarily reflects parental guarantees issued on behalf of Generation to allow the flexibility needed to conduct business with counterparties without having to post other forms of collateral. Also reflects guarantees issued to ensure performance under specific contracts, preferred securities of financing trusts, property leases, indemnifications, NRC minimum funding assurance requirements and miscellaneous guarantees. The estimated net exposure for obligations under commercial transactions covered by these guarantees was $0.6 billion at June 30, 2014, which represents the total amount Exelon could be required to fund based on June 30, 2014 market prices. | |||||||||||||||||||||
(c) Primarily reflects guarantees issued to ensure performance under energy marketing and other specific contracts. The estimated net exposure for obligations under commercial transactions covered by these guarantees was $0.3 billion at June 30, 2014, which represents the total amount Generation could be required to fund based on June 30, 2014 market prices. | |||||||||||||||||||||
(d) Primarily reflects full and unconditional guarantees of $200 million Trust Preferred Securities of ComEd Financing III, which is a 100% owned finance subsidiary of ComEd. | |||||||||||||||||||||
(e) Primarily reflects full and unconditional guarantees of $178 million Trust Preferred Securities of PECO Trust III and IV, which are 100% owned finance subsidiaries of PECO. | |||||||||||||||||||||
(f) Primarily reflects full and unconditional guarantees of $250 million Trust Preferred Securities of BGE Capital Trust II, which is a 100% owned finance subsidiary of BGE. | |||||||||||||||||||||
(g) Represents the maximum amount that Generation would be required to pay for retrospective premiums in the event of nuclear disaster at any domestic site, including CENG sites, under the Secondary Financial Protection pool as required under the Price-Anderson Act as well as the current aggregate annual retrospective premium obligation that could be imposed by NEIL. See the Nuclear Insurance section within this note for additional details on Generation's nuclear insurance premiums. | |||||||||||||||||||||
(h) Represents the underwriters discount for Exelon's forward equity transaction. See Note 16 – Common Stock of the Combined Notes to Consolidated Financial Statements for further details of the equity securities offering. | |||||||||||||||||||||
Nuclear Insurance (Exelon and Generation) | |||||||||||||||||||||
Generation is subject to liability, property damage and other risks associated with major incidents at any of its nuclear stations, including the CENG nuclear stations. Generation has reduced its financial exposure to these risks through insurance and other industry risk-sharing provisions | |||||||||||||||||||||
The Price-Anderson Act was enacted to ensure the availability of funds for public liability claims arising from an incident at any of the U.S. licensed nuclear facilities and also to limit the liability of nuclear reactor owners for such claims from any single incident. As of June 30, 2014, the current liability limit per incident was $13.6 billion and is subject to change to account for the effects of inflation and changes in the number of licensed reactors. An inflation adjustment must be made at least once every 5 years and the last inflation adjustment was made effective September 10, 2013. In accordance with the Price-Anderson Act, Generation maintains financial protection at levels equal to the amount of liability insurance available from private sources through the purchase of private nuclear energy liability insurance for public liability claims that could arise in the event of an incident. As of June 30, 2014, the amount of nuclear energy liability insurance purchased is $375 million for each operating site. Additionally, the Price-Anderson Act requires a second layer of protection through the mandatory participation in a retrospective rating plan for power reactors (currently 104 reactors) resulting in an additional $13.2 billion in funds available for public liability claims. Participation in this secondary financial protection pool requires the operator of each reactor to fund its proportionate share of costs for any single incident that exceeds the primary layer of financial protection. Under the Price-Anderson Act, the maximum assessment in the event of an incident for each nuclear operator, per reactor, per incident (including a 5% surcharge), is $127.3 million, payable at no more than $19 million per reactor per incident per year. Exelon's maximum liability per incident is approximately $2.7 billion, including CENG's related liability. | |||||||||||||||||||||
In addition, the U.S. Congress could impose revenue-raising measures on the nuclear industry to pay public liability claims exceeding the $13.6 billion limit for a single incident. | |||||||||||||||||||||
Generation is also required each year to report to the NRC the current levels and sources of property insurance that demonstrates Generation possesses sufficient financial resources to stabilize and decontaminate a reactor and reactor station site in the event of an accident. The property insurance maintained for each facility is currently provided through insurance policies purchased from NEIL, an industry mutual insurance company of which Generation is a member. Premiums paid to NEIL by its members are subject to assessment for adverse loss experience (the retrospective premium obligation). The maximum combined retrospective premium amount that Generation could be required to pay due to participation in the Price-Anderson Act retrospective rating plan for power reactors and the NEIL retrospective premium obligation is $3.6 billion, including CENG's obligation, which is included above in the Commercial Commitments table. See the Nuclear Insurance section within Note 22 – Commitments and Contingencies of the Exelon 2013 Form 10-K for additional details on Generation's nuclear insurance premiums. | |||||||||||||||||||||
As part of the execution of NOSA on April 1, 2014, Generation executed an Indemnity Agreement pursuant to which Generation agreed to indemnify EDF and its affiliates against third-party claims that may arise from any future nuclear incident (as defined in the Price Anderson Act) in connection with the CENG nuclear plants or their operations. Exelon guarantees Generation's obligations under this indemnity. See Note 6 – Investment in CENG for additional information on Generation's operations relating to CENG. | |||||||||||||||||||||
Spent Nuclear Fuel Obligation (Exelon and Generation) | |||||||||||||||||||||
Under the NWPA, the DOE is responsible for the development of a geologic repository for and the disposal of SNF and high-level radioactive waste. As required by the NWPA, Generation is a party to contracts with the DOE (Standard Contracts) to provide for disposal of SNF from Generation's nuclear generating stations. In accordance with the NWPA and the Standard Contracts, Generation pays the DOE one mill ($0.001) per kWh of net nuclear generation for the cost of SNF disposal. This fee may be adjusted prospectively in order to ensure full cost recovery. The NWPA and the Standard Contracts required the DOE to begin taking possession of SNF generated by nuclear generating units by no later than January 31, 1998. The DOE, however, failed to meet that deadline and its performance will be delayed significantly. On November 19, 2013, the D.C. Circuit Court ordered the DOE to submit to Congress a proposal to reduce the current SNF disposal fee to zero, unless and until there is a viable disposal program. On January 3, 2014, the DOE filed a petition for rehearing which was denied by the D.C. Circuit Court on March 18, 2014. Also, on January 3, 2014, the DOE submitted a proposal to Congress to reduce the current SNF disposal fee to zero. On May 9, 2014, the DOE notified Generation that the SNF disposal fee will remain in effect through May 15, 2014, after which time the fee will be set to zero. For the six months ended June 30, 2014, and for the year ended December 31, 2013, Generation incurred expense of $49 million and $136 million, respectively, in SNF disposal fees, recorded in Purchased power and fuel expense within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income, including Exelon's share of Salem and net of co-owner reimbursements (not including such fees incurred by CENG). | |||||||||||||||||||||
Indemnifications Related to Sale of Sithe (Exelon and Generation) | |||||||||||||||||||||
On January 31, 2005, subsidiaries of Generation completed a series of transactions that resulted in Generation's sale of its investment in Sithe. Specifically, subsidiaries of Generation consummated the acquisition of Reservoir Capital Group's 50% interest in Sithe and subsequently sold 100% of Sithe to Dynegy, Inc. (Dynegy). | |||||||||||||||||||||
The estimated maximum possible exposure to Exelon related to the guarantees provided as part of the sales transaction to Dynegy was approximately $200 million at December 31, 2013. The guarantee expired January 31, 2014. Generation was not required to make payments under the guarantee, and, therefore, has no further obligation related to this guarantee as of June 30, 2014. | |||||||||||||||||||||
Environmental Issues | |||||||||||||||||||||
General. The Registrants' operations have in the past, and may in the future, require substantial expenditures in order to comply with environmental laws. Additionally, under Federal and state environmental laws, the Registrants are generally liable for the costs of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. In addition, the Registrants are currently involved in a number of proceedings relating to sites where hazardous substances have been deposited and may be subject to additional proceedings in the future. | |||||||||||||||||||||
ComEd, PECO and BGE have identified sites where former MGP activities have or may have resulted in actual site contamination. For almost all of these sites, ComEd, PECO or BGE is one of several PRPs that may be responsible for ultimate remediation of each location. | |||||||||||||||||||||
ComEd has identified 42 sites, 16 of which have been approved for cleanup by the Illinois EPA or the U.S. EPA and 26 that are currently under some degree of active study and/or remediation. ComEd expects the majority of the remediation at these sites to continue through at least 2017. | |||||||||||||||||||||
PECO has identified 26 sites, 16 of which have been approved for cleanup by the PA DEP and 10 that are currently under some degree of active study and/or remediation. PECO expects the majority of the remediation at these sites to continue through at least 2020. | |||||||||||||||||||||
BGE has identified 13 former gas manufacturing or purification sites that it currently owns or owned at one time through a predecessor's acquisition. Two gas manufacturing sites require some level of remediation and ongoing monitoring under the direction of the MDE. The required costs at these two sites are not considered material. One gas purification site is in the initial stages of investigation at the direction of the MDE. | |||||||||||||||||||||
ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, are currently recovering environmental remediation costs of former MGP facility sites through customer rates. BGE is authorized to and is currently recovering environmental costs for the remediation of former MGP facility sites from customers; however, while BGE does not have a rider for MGP clean-up costs, BGE has historically received recovery of actual clean-up costs in distribution rates. ComEd, PECO and BGE have recorded regulatory assets for the recovery of these costs. See Note 5 - Regulatory Matters for additional information regarding the associated regulatory assets. | |||||||||||||||||||||
As of June 30, 2014 and December 31, 2013, the Registrants had accrued the following undiscounted amounts for environmental liabilities in other current liabilities and other deferred credits and other liabilities within their respective Consolidated Balance Sheets: | |||||||||||||||||||||
30-Jun-14 | Total Environmental Investigation and Remediation Reserve | Portion of Total Related to MGP Investigation and Remediation | |||||||||||||||||||
Exelon | $ | 323 | $ | 258 | |||||||||||||||||
Generation | 56 | 0 | |||||||||||||||||||
ComEd | 222 | 217 | |||||||||||||||||||
PECO | 44 | 41 | |||||||||||||||||||
BGE | 1 | 0 | |||||||||||||||||||
31-Dec-13 | Total Environmental Investigation and Remediation Reserve | Portion of Total Related to MGP Investigation and Remediation | |||||||||||||||||||
Exelon | $ | 338 | $ | 273 | |||||||||||||||||
Generation | 56 | 0 | |||||||||||||||||||
ComEd | 234 | 229 | |||||||||||||||||||
PECO | 47 | 44 | |||||||||||||||||||
BGE | 1 | 0 | |||||||||||||||||||
The Registrants cannot reasonably estimate whether they will incur other significant liabilities for additional investigation and remediation costs at these or additional sites identified by the Registrants, environmental agencies or others, or whether such costs will be recoverable from third parties, including customers. | |||||||||||||||||||||
Water Quality | |||||||||||||||||||||
Section 316(b) of the Clean Water Act. Section 316(b) requires that the cooling water intake structures at electric power plants reflect the best technology available to minimize adverse environmental impacts, and is implemented through state-level NPDES permit programs. All of Generation's and CENG's power generation facilities with cooling water systems are subject to the regulations. Facilities without closed-cycle recirculating systems (e.g., cooling towers) are potentially most affected by changes to the existing regulations. For Generation, those facilities are Clinton, Dresden, Eddystone, Fairless Hills, Gould Street, Handley, Mountain Creek, Mystic 7, Oyster Creek, Peach Bottom, Quad Cities, Riverside, Salem and Schuylkill. For CENG, those facilities are Calvert Cliffs, Nine Mile Point Unit 1 and R.E. Ginna. | |||||||||||||||||||||
On May, 19 2014, the U.S. EPA released the final Section 316(b) rule. The rule has not been published in the Federal Register, and will become effective 60 days after publication. The rule requires that a series of studies and analyses be performed to determine the best technology available, followed by an implementation period. The timing of the various requirements for each facility is related to the status of its current NPDES permit and the subsequent renewal period. There is no fixed compliance schedule, as this is left to the discretion of the state permitting director. | |||||||||||||||||||||
The rule does not require closed-cycle cooling (e.g., cooling towers) as the best technology available to address impingement and entrainment. The rule provides the state permitting director with significant discretion to determine the best technology available to limit entrainment (drawing aquatic life into the plants cooling system) mortality, including application of a cost-benefit test and the consideration of a number of site-specific factors. After consideration of these factors, the state permitting agency may require closed cycle cooling, an alternate technology, or determine that the current technology is the best available. The rule also provides a number of flexible compliance options to reduce impingement (trapping aquatic life on screens) mortality, which likely will be accomplished by the installation of screens or other technology at the intake. A number of concerns raised by the electric generation industry about the proposed rule were resolved favorably in the final rule. | |||||||||||||||||||||
New York Facilities. In July 2011, the New York Department of Environmental Conservation (DEC) issued a policy regarding the best available technology for cooling water intake structures. Through its policy, the DEC established closed-cycle cooling or its equivalent as the performance goal for all existing facilities, but also provided that the DEC will select a feasible technology whose costs are not wholly disproportionate to the environmental benefits to be gained and allows for a site-specific determination where the entrainment performance goal cannot be achieved. Each of CENG's New York facilities has filed for its SPDES permit renewal in 2014 and the renewal applications are currently pending with the NYDEC. | |||||||||||||||||||||
Salem and Other Power Generation Facilities. In June 2001, the NJDEP issued a renewed NPDES permit for Salem, allowing for the continued operation of Salem with its existing cooling water system. NJDEP advised PSEG, in July 2004 that it strongly recommended reducing cooling water intake flow commensurate with closed-cycle cooling as a compliance option for Salem. PSEG submitted an application for a renewal of the permit on February 1, 2006. In the permit renewal application, PSEG analyzed closed-cycle cooling and other options and demonstrated that the continuation of the Estuary Enhancement Program, an extensive environmental restoration program at Salem, is the best technology to meet the Section 316(b) requirements. PSEG continues to operate Salem under the approved June 2001 NPDES permit while the NPDES permit renewal application is being reviewed. If the final permit or Section 316(b) regulations ultimately requires the retrofitting of Salem's cooling water intake structure to reduce cooling water intake flow commensurate with closed-cycle cooling, Exelon's and Generation's share of the total cost of the retrofit and any resulting interim replacement power would likely be in excess of $430 million, based on a 2006 estimate, and would result in increased depreciation expense related to the retrofit investment. However, it is unknown at this time whether implementation of the final EPA rule will result in a requirement to install closed cycle cooling at Salem. | |||||||||||||||||||||
Until the compliance requirements are determined by the applicable state permitting director on a site-specific basis for each plant, Generation cannot estimate the effect that compliance with the rule will have on the operation of its and CENG's generating facilities and its future results of operations, cash flows and financial position. Should a state permitting director determine that a facility must install cooling towers to comply with the rule, that facility's economic viability would be called into question. However, the likely impact of the rule has been significantly decreased since the final rule does not mandate cooling towers as a national standard, and the state permitting director is required to apply a cost-benefit test and can take into consideration site-specific factors. | |||||||||||||||||||||
Groundwater Contamination. In October 2007, a subsidiary of Constellation entered into a consent decree with the MDE relating to groundwater contamination at a third-party facility that was licensed to accept fly ash, a byproduct generated by coal-fired plants. The consent decree required the payment of a $1 million penalty, remediation of groundwater contamination resulting from the ash placement operations at the site, replacement of drinking water supplies in the vicinity of the site, and monitoring of groundwater conditions. As of June 30, 2014, and December 31, 2013, Generation's remaining groundwater contamination reserve was $15 million and $14 million respectively. In addition, a private party asserted claims relating to groundwater contamination. In February 2014, Generation settled these private party claims for an amount that was not material to the financial condition of Generation. | |||||||||||||||||||||
Air Quality | |||||||||||||||||||||
Cross State Air Pollution Rule (CSAPR). On July 11, 2008, the U.S. Court of Appeals for the District of Columbia Circuit (D.C. Circuit Court) vacated the CAIR, which had been promulgated by the U.S. EPA to reduce power plant emissions of SO2 and NOx. The D.C. Circuit Court later remanded the CAIR to the U.S. EPA, without invalidating the entire rulemaking, so that the U.S. EPA could correct CAIR in accordance with the D.C. Circuit Court's July 11, 2008 opinion. On July 7, 2011, the U.S. EPA published the final rule, known as the CSAPR. The CSAPR requires 28 states in the eastern half of the United States to significantly improve air quality by reducing power plant emissions that cross state lines and contribute to ground-level ozone and fine particle pollution in other states. | |||||||||||||||||||||
Numerous entities challenged the CSAPR in the D.C. Circuit Court, and some requested a stay of the rule pending the Court's consideration of the matter on the merits. On December 30, 2011, the Court granted a stay of the CSAPR, and directed the U.S. EPA to continue the administration of CAIR in the interim. On August 21, 2012, a three-judge panel of the D.C. Circuit Court held that the U.S. EPA has exceeded its authority in certain material aspects of the CSAPR and vacated the rule and remanded it to the U.S. EPA for further rulemaking consistent with its decision. The Court also ordered that CAIR remain in effect pending finalization of CSAPR on remand. The Court's order was appealed to the U.S. Supreme Court, and on April 29, 2014, the U.S. Supreme Court reversed the D.C. Circuit Court decision and upheld CSAPR, and remanded the case to the D.C. Circuit Court to resolve the remaining implementation issues. On June 26, 2014, the U.S. EPA filed a motion with the D.C. Circuit Court seeking to have the stay of the CSAPR lifted, and proposed a three-year tolling of the effective dates under the rule so that the first phase of emission budgets would be implemented on January 1, 2015. The U.S. EPA believes that this would allow sufficient time to complete the remaining aspects of the rulemaking before the implementation of the more stringent second phase of emission budgets that, under the tolling proposal, would begin on January 1, 2017. | |||||||||||||||||||||
The CSAPR restricts entirely the use of pre-2012 allowances. Existing SO2 allowances under the ARP would remain available for use. As of June 30, 2014, Generation had $64 million of emission allowances carried at the lower of weighted average cost or market. | |||||||||||||||||||||
EPA Mercury and Air Toxics Standards (MATS). The MATS rule became final on April 16, 2012. The MATS rule reduces emissions of toxic air pollutants, and finalized the new source performance standards for fossil fuel-fired electric utility steam generating units (EGUs). The MATS rule requires coal-fired EGUs to achieve high removal rates of mercury, acid gases and other metals from air emissions. To achieve these standards, coal units with no pollution control equipment installed (uncontrolled coal units) will have to make capital investments and incur higher operating expenses. It is expected that smaller, older, uncontrolled coal units will retire rather than make these investments. Coal units with existing controls that do not meet the required standards may need to upgrade existing controls or add new controls to comply. In addition, the new standards will require oil units to achieve high removal rates of metals. Owners of oil units not currently meeting the proposed emission standards may choose to convert the units to light oils or natural gas, install control technologies or retire the units. The MATS rule requires generating stations to meet the new standards three years after the rule takes effect, April 16, 2015, with specific guidelines for an additional one or two years in limited cases. Numerous entities challenged MATS in the D.C. Circuit Court, and Exelon intervened in support of the rule. On April 15, 2014, the D.C Circuit Court issued an opinion upholding MATS in its entirety. On July 14, 2014, three petitions for certiorari were filed with the U.S. Supreme Court seeking review of the D.C. Circuit Court decision upholding MATS. | |||||||||||||||||||||
Exelon, along with the other co-owners of Conemaugh Generating Station have improved the existing scrubbers and installed Selective Catalytic Reduction (SCR) controls to meet the requirements of MATS. | |||||||||||||||||||||
In addition, as of June 30, 2014, Exelon had a $353 million net investment in coal-fired plants in Georgia subject to long-term leases extending through 2028-2032. While Exelon currently estimates the value of these plants at the end of the lease term will be in excess of the recorded residual lease values, after the impairments recorded in the second quarter of 2013 and 2014, final applications of the CSAPR and MATS regulations could negatively impact the end-of-lease term values of these assets, which could result in a future impairment loss that could be material. See Note 7 – Impairment of Long-Lived Assets for additional information. | |||||||||||||||||||||
National Ambient Air Quality Standards (NAAQS). The U.S. EPA previously announced that it would complete a review of all NAAQS by 2014. Oral argument in the litigation (State of Miss. v. EPA) of the final 2008 ozone standard occurred in the D.C. Circuit Court in November 2012 and a final Court decision was issued on July 23, 2013 with the 2008 primary ozone standard upheld, but the secondary standard remanded to EPA for reconsideration. Concurrent with litigation of the 2008 ozone standard, the U.S. EPA continues its regular, periodic review of the ozone NAAQS and is expected to propose revisions in the fall of 2014, with preliminary indications that the U.S. EPA will likely propose a tightened standard. It is unclear at this point in time whether the U.S. EPA will be able to respond to the Court remand of the secondary 2008 ozone standard on a timeframe that would be any quicker than that of the U.S. EPA's current, periodic review schedule. In December 2012, the U.S. EPA issued its final revisions to the Agency's particulate matter (PM) NAAQS. In its final rule, the U.S. EPA lowered the annual PM2.5 standard, but declined to issue a new secondary NAAQS to improve urban visibility. The U.S. EPA indicated in its final rule that by 2020 it expects most areas of the country will be in attainment of the new PM2.5 NAAQS based on currently expected regulations, such as the MATS regulation. It is unclear if the vacatur of the CSAPR, one of the regulations that the U.S. EPA is relying on to assist with future PM reduction, would alter the U.S. EPA's view since either CAIR or a finalized CSAPR regulation would be in effect leading up to 2020. In March 2013, a number of industry coalitions filed a joint lawsuit challenging the new PM2.5 standard. Also during early 2013, the D.C. Circuit remanded several rules for implementation of earlier PM2.5 NAAQS to the U.S. EPA for revision of certain aspects of the rules, with a requirement that the U.S. EPA re-promulgate regulations in conformance with the correct subparts of the Clean Air Act. | |||||||||||||||||||||
In addition to these NAAQS, the U.S. EPA also finalized nonattainment designations for certain areas in the United States for the 2010 one-hour SO2 standard on August 5, 2013, and indicated that additional nonattainment areas will be designated in a future rulemaking. U.S. EPA will require states to submit state implementation plans (SIPs) for nonattainment areas by April 2015. With regard to Texas and Maryland, no nonattainment areas were identified in EPA's final designation rule. With regard to Illinois and Pennsylvania, several counties, or portions of counties, in each state were identified as nonattainment. The U.S. EPA will follow the approach outlined in a February 2013 U.S. EPA strategy document that establishes a process and timeline for the Agency to address additional designations in states' counties under a future rulemaking. Nonattainment county compliance with the one-hour SO2 standard is required by October 2018. While significant SO2 reductions will occur as a result of MATS compliance in 2015, Exelon is unable to predict the requirements of pending states' SIPs to further reduce SO2 emissions in support of attainment of the one hour SO2 standard. | |||||||||||||||||||||
Notices and Finding of Violations and Midwest Generation Bankruptcy. In December 1999, ComEd sold several generating stations to Midwest Generation, LLC (Midwest Generation), a subsidiary of Edison Mission Energy (EME). Under the terms of the sale agreement, Midwest Generation and EME assumed responsibility for environmental liabilities associated with the ownership, occupancy, use and operation of the stations, including responsibility for compliance by the stations with environmental laws before their purchase by Midwest Generation. Midwest Generation and EME additionally agreed to indemnify and hold ComEd and its affiliates harmless from claims, fines, penalties, liabilities and expenses arising from third party claims against ComEd resulting from or arising out of the environmental liabilities assumed by Midwest Generation and EME under the terms of the agreement governing the sale. In connection with Exelon's 2001 corporate restructuring, Generation assumed ComEd's rights and obligations with respect to its former generation business, including its rights and obligations under the sale agreement with Midwest Generation and EME. | |||||||||||||||||||||
Under a supplemental agreement reached in 2003, Midwest Generation agreed to reimburse ComEd and Generation for 50% of the specific asbestos claims pending as of February 2003 and related expenses less recovery of insurance costs and agreed to a sharing arrangement for liabilities and expenses associated with future asbestos-related claims as specified in the agreement. | |||||||||||||||||||||
On December 17, 2012 (Petition Date), EME and certain of its subsidiaries, including Midwest Generation, filed for protection under Chapter 11 of the U.S. Bankruptcy Code. | |||||||||||||||||||||
In 2012, the Bankruptcy Court approved the rejection of an agency agreement related to a coal rail car lease under which Midwest Generation had agreed to reimburse ComEd for all obligations incurred under the coal rail car lease. The rejection left Generation as the party responsible for making all remaining payments under the lease and performing all other obligations thereunder. In January 2013, Generation made the final $10 million payment due under the lease agreement which had been accrued at December 31, 2012. | |||||||||||||||||||||
On January 17, 2014, Midwest Generation filed a plan supplement to its bankruptcy filing that included a list of contracts to be rejected upon the effective date of the reorganization plan. This list included the sale agreement, including the environmental indemnity, and the asbestos cost-sharing agreement. | |||||||||||||||||||||
On March 11, 2014, the Bankruptcy Court for the Northern District of Illinois entered its Order Confirming Debtors' Joint Chapter 11 Plan of Reorganization. On April 1, 2014 (Effective Date), NRG Energy purchased EME's portfolio of generation, including Midwest Generation and the Joint Chapter 11 Plan of Reorganization (Plan) became effective. As part of the Plan, the sale agreement, including the environmental indemnity, and the asbestos cost-sharing agreement were rejected. Creditors were provided 30 days from the Effective Date to file rejection damages claims associated with contracts rejected under the Plan. | |||||||||||||||||||||
During the second quarter of 2013, Exelon filed proofs of claim for approximately $21 million with the Bankruptcy Court for amounts owed by EME and Midwest Generation for the coal rail car lease, ComEd utility payments and certain legal costs. Further, Exelon filed an environmental claim with an unspecified amount that listed the indemnifications that were in place pre-Petition Date and other factors associated with the remediation and a claim under the asbestos cost-sharing agreement with an unspecified amount. As of June 30, 2014, Exelon has not recorded a receivable for the filed proofs of claim because recovery of any amount cannot be assured at this point in the bankruptcy. Exelon will not record claim recoveries unless and until they are realized. | |||||||||||||||||||||
Certain environmental laws and regulations subject current and prior owners of properties or generators of hazardous substances at such properties to liability for remediation costs of environmental contamination. As a prior owner of the generating stations, ComEd (and Generation, through its agreement in Exelon's 2001 corporate restructuring to assume ComEd's rights and obligations associated with its former generation business) could face liability (along with any other potentially responsible parties) for environmental conditions at the stations requiring remediation, with the determination of the allocation among the parties subject to many uncertain factors. ComEd and Generation have reviewed available public information as to potential environmental exposures regarding the Midwest Generation station sites. Midwest Generation publicly disclosed in its March 31, 2014 Form 10-Q that (i) it has accrued a probable amount of approximately $9 million for estimated environmental investigation and remediation costs under CERCLA, or similar laws, for the investigation and remediation of contaminated property at two Midwest Generation plant sites, (ii) it has identified stations for which a reasonable estimate for investigation and/ or remediation cannot be made and (iii) it and the Illinois EPA entered into Compliance Commitment Agreements outlining specified environmental remediation measures and groundwater monitoring activities to be undertaken at its Crawford, Powerton, Joliet, Will County and Waukegan generating stations. At this time, however, ComEd and Generation do not have sufficient information to reasonably assess the potential likelihood or magnitude of any remediation requirements that may be asserted. For these reasons, ComEd and Generation are unable to predict whether and to what extent they may ultimately be held responsible for remediation and other costs relating to the generating stations and as a result no liability has been recorded as of June 30, 2014. Any liability imposed on ComEd or Generation for environmental matters relating to the generating stations could have a material adverse impact on their future results of operations and cash flows. | |||||||||||||||||||||
Generation increased its reserve for asbestos-related bodily injury claims at December 31, 2013 by $25 million, as a result of Midwest Generation listing such agreement in the January 2014 plan supplement as an agreement to be rejected in connection with the Plan. As discussed above, the rejection became effective as part of the Plan. Subsequently, Generation increased its reserve by $15 million pursuant to the second quarter 2014 actuarial study of such claims, of which an estimated $6 million pertains to Midwest Generation's share. Midwest Generation publicly disclosed in its March 31, 2014 Form 10-Q that it had $53 million recorded related to asbestos bodily injury claims under the contractual indemnity with ComEd. Exelon and Generation may be entitled to damages associated with the rejection of the agreement. These amounts are considered to be contingent gains and would not be recognized until realized. | |||||||||||||||||||||
Solid and Hazardous Waste | |||||||||||||||||||||
Cotter Corporation. The U.S. EPA has advised Cotter Corporation (Cotter), a former ComEd subsidiary, that it is potentially liable in connection with radiological contamination at a site known as the West Lake Landfill in Missouri. On February 18, 2000, ComEd sold Cotter to an unaffiliated third party. As part of the sale, ComEd agreed to indemnify Cotter for any liability arising in connection with the West Lake Landfill. In connection with Exelon's 2001 corporate restructuring, this responsibility to indemnify Cotter was transferred to Generation. On May 29, 2008, the U.S. EPA issued a Record of Decision approving the remediation option submitted by Cotter and the two other PRPs that required additional landfill cover. The current estimated cost of the anticipated landfill cover remediation for the site is approximately $42 million, which will be allocated among all PRPs. Generation has accrued what it believes to be an adequate amount to cover its anticipated share of such liability. By letter dated January 11, 2010, the U.S. EPA requested that the PRPs perform a supplemental feasibility study for a remediation alternative that would involve complete excavation of the radiological contamination. On September 30, 2011, the PRPs submitted the final supplemental feasibility study to the U.S. EPA for review. In June 2012, the U.S. EPA requested that the PRPs perform additional analysis and groundwater sampling as part of the supplemental feasibility study, and subsequently requested additional analysis sampling and modeling that will be conducted throughout 2014 and into 2015. In light of these additional requests, it is unknown when the U.S EPA will propose a remedy for public comment, but will likely be sometime in 2015 at the earliest. Thereafter the U.S. EPA will select a final remedy and enter into a Consent Decree with the PRPs to effectuate the remedy. A complete excavation remedy would be significantly more expensive than the previously selected additional cover remedy; however, Generation believes the likelihood that the U.S. EPA would require a complete excavation remedy is remote. | |||||||||||||||||||||
On August 8, 2011, Cotter was notified by the DOJ that Cotter is considered a PRP with respect to the government's clean-up costs for contamination attributable to low level radioactive residues at a former storage and reprocessing facility named Latty Avenue near St. Louis, Missouri. The Latty Avenue site is included in ComEd's indemnification responsibilities discussed above as part of the sale of Cotter. The radioactive residues had been generated initially in connection with the processing of uranium ores as part of the U.S. government's Manhattan Project. Cotter purchased the residues in 1969 for initial processing at the Latty Avenue facility for the subsequent extraction of uranium and metals. In 1976, the NRC found that the Latty Avenue site had radiation levels exceeding NRC criteria for decontamination of land areas. Latty Avenue was investigated and remediated by the United States Army Corps of Engineers pursuant to funding under the Formerly Utilized Sites Remedial Action Program. The DOJ has not yet formally advised the PRPs of the amount that it is seeking, but it is believed to be approximately $90 million. The DOJ and the PRPs agreed to toll the statute of limitations until August 2014 so that settlement discussions could proceed. Based on Generation's preliminary review, it appears probable that Generation has liability to Cotter under the indemnification agreement and has established an appropriate accrual for this liability. | |||||||||||||||||||||
On February 28, 2012, and April 12, 2012, two lawsuits were filed in the U.S. District Court for the Eastern District of Missouri against 15 and 14 defendants, respectively, including Exelon, Generation and ComEd (the Exelon defendants) and Cotter. The suits allege that individuals living in the North St. Louis area developed some form of cancer due to the Exelon defendants' negligent or reckless conduct in processing, transporting, storing, handling and/or disposing of radioactive materials. Plaintiffs have asserted claims for negligence, strict liability, emotional distress, medical monitoring, and violations of the Price-Anderson Act. The complaints do not contain specific damage claims. On May 30, 2012, the plaintiffs filed voluntary motions to dismiss the Exelon defendants from both lawsuits which were subsequently granted. Since May 30, 2012, several related lawsuits have been filed in the same court on behalf of various plaintiffs against Cotter and other defendants, but not Exelon. The allegations in these related lawsuits mirror the initially filed lawsuits. In the event of a finding of liability, it is reasonably possible that Exelon would be considered liable due to its indemnification responsibilities of Cotter described above. On March 27, 2013, the U.S. District Court dismissed all state common law actions brought under the initial two lawsuits; and also found that the plaintiffs had not properly brought the actions under the Price-Anderson Act. On July 8, 2013, the plaintiffs filed amended complaints under the Price-Anderson Act. Cotter moved to dismiss the amended complaints and has motions currently pending before the court. At this stage of the litigation, Exelon, Generation, and ComEd cannot estimate a range of loss, if any. | |||||||||||||||||||||
On April 11, 2014, a class action complaint was filed in the U.S. District Court for the Eastern District of Missouri against Cotter and six additional defendants. The complaint alleges that individuals living in the North St. Louis area within a three-mile radius of the West Lake Landfill suffered damage to property or loss of use of property due to the defendants' negligent handling of radioactive materials. Plaintiffs have asserted claims for monetary damages under the Price-Anderson Act. At this stage of the litigation, Exelon and Generation cannot estimate a range of loss, if any. | |||||||||||||||||||||
68th Street Dump. In 1999, the U.S. EPA proposed to add the 68th Street Dump in Baltimore, Maryland to the Superfund National Priorities List, and notified BGE and 19 others that they are PRPs at the site. In March 2004, BGE and other PRPs formed the 68th Street Coalition and entered into consent order negotiations with the U.S. EPA to investigate clean-up options for the site under the Superfund Alternative Sites Program. In May 2006, a settlement among the U.S. EPA and 19 of the PRPs, including BGE, with respect to investigation of the site became effective. The settlement requires the PRPs, over the course of several years, to identify contamination at the site and recommend clean-up options. The PRP's submitted their investigation of the range of clean-up options in the first quarter of 2011. Although the investigation and options provided to the U.S. EPA are still subject to U.S. EPA review and selection of a remedy, the range of estimated clean-up costs to be allocated among all of the PRPs is in the range of $50 million to $64 million. On September 30, 2013, U.S. EPA issued the Record of Decision identifying its preferred remedial alternative for the site. The estimated cost for the alternative chosen by U.S. EPA is consistent with the PRPs estimated range of costs noted above. Based on Generation's preliminary review, it appears probable that Generation has liability and has established an appropriate accrual for its share of the estimated clean-up costs. A wholly owned subsidiary of Generation has agreed to indemnify BGE for most of the costs related to this settlement and clean-up of the site. | |||||||||||||||||||||
Rossville Ash Site. The Rossville Ash Site is a 32-acre property located in Rosedale, Baltimore County, Maryland, which was used for the placement of fly ash from 1983-2007. The property is owned by Constellation Power Source Generation, LLC (CPSG). In 2008, CPSG investigated and remediated the property by entering it into the Maryland Voluntary Cleanup Program (VCP) to address any historic environmental concerns and ready the site for appropriate future redevelopment. The site was accepted into the program in 2010 and is currently going through the process to remediate the site and receive closure from MDE. Exelon currently estimates the cost to close the site to be approximately $6 million, which has been fully reserved as of June 30, 2014. | |||||||||||||||||||||
Sauer Dump. On May 30, 2012, BGE was notified by the U.S. EPA that it is considered a PRP at the Sauer Dump Superfund site in Dundalk, Maryland. The U.S. EPA offered BGE and three other PRPs the opportunity to conduct an environmental investigation and present cleanup recommendations at the site. In addition, the U.S. EPA is seeking recovery from the PRPs of $1.7 million for past cleanup and investigation costs at the site. On March 11, 2013, BGE and three other PRP's signed an Administrative Settlement Agreement and Order on Consent with the U.S. EPA which requires the PRP's to conduct a Remedial Investigation and Feasibility Study at the site to determine what, if any, are the appropriate and recommended cleanup activities for the site. The ultimate outcome of this proceeding is uncertain. Since the U.S. EPA has not selected a cleanup remedy and the allocation of the cleanup costs among the PRPs has not been determined, an estimate of the range of BGE's reasonably possible loss, if any, cannot be determined. | |||||||||||||||||||||
Climate Change Regulation. Exelon is subject to climate change regulation or legislation at the Federal, regional and state levels. In 2007, the U.S. Supreme Court ruled that GHG emissions are pollutants subject to regulation under the new motor vehicle provisions of the Clean Air Act. Consequently, on December 7, 2009, the U.S. EPA issued an endangerment finding under Section 202 of the Clean Air Act regarding GHGs from new motor vehicles and on April 1, 2010 issued final regulations limiting GHG emissions from cars and light trucks effective on January 2, 2011. While such regulations do not specifically address stationary sources, such as a generating plant, it is the U.S. EPA's position that the regulation of GHGs under the mobile source provisions of the Clean Air Act has triggered the permitting requirements under the Prevention of Significant Deterioration (PSD) and Title V operating permit sections of the Clean Air Act for new and modified stationary sources effective January 2, 2011. Therefore, on May 13, 2010, the U.S. EPA issued final regulations (the Tailoring Rule) relating to these provisions of the Clean Air Act for major stationary sources of GHG emissions that apply to new sources that emit greater than 100,000 tons per year, on a CO2 equivalent basis, and to modifications to existing sources that result in emissions increases greater than 75,000 tons per year on a CO2 equivalent basis. These thresholds became effective January 2, 2011, apply for six years and will be reviewed by the U.S. EPA for future applicability thereafter. On July 2, 2012 the U.S. EPA declined to lower GHG permit thresholds in its final “Step 3” Tailoring Rule update. The U.S. EPA will review permit thresholds again in a 2015 rulemaking process. On June 26, 2012, the United States Court of Appeals for the District of Columbia, in a per curium decision, dismissed industry and state petitions challenging the U.S. EPA's “Tailpipe Rule” for cars and light duty trucks, the endangerment finding for GHG's from stationary sources, and the Tailoring Rule. On October 15, 2013, the U.S. Supreme Court granted industry petitions to review one aspect of the PSD permitting regulations. Under the PSD regulations, new and modified major stationary sources could be required to install best available control technology, to be determined on a case by case basis. Generation could be significantly affected by the regulations if it were to build new plants or modify existing plants. | |||||||||||||||||||||
On June 25, 2013, President Obama announced “The President's Climate Action Plan,” a summary of executive branch actions intended to: reduce carbon emissions; prepare the United States for the impacts of climate change; and lead international efforts to combat global climate change and prepare for its impacts. Concurrent with the announcement of the Administration's plan, the President also issued a Memorandum for the Administrator of the Environmental Protection Agency that focused on power generation sector carbon reductions under the Section 111 New Source Performance Standards (NSPS) section of the federal Clean Air Act. The memorandum directs the U.S. EPA Administrator to issue two sets of proposed rulemakings with regard to power plant carbon emissions under Section 111 of the Clean Air Act. | |||||||||||||||||||||
The first rulemaking, under Section 111(b) of the Clean Air Act, focuses on establishing carbon regulations for new fossil-fuel power plants. This rulemaking was proposed on September 20, 2013 and is to be finalized “in a timely fashion.” In the proposed rule, U.S. EPA sets separate standards for fossil-fuel fired utility boilers and natural gas fired stationary combustion turbines. | |||||||||||||||||||||
The second rulemaking, under Section 111(d) of the Clean Air Act, focuses on modified, reconstructed and existing fossil power plants. The proposed rule was published in the Federal Register on June 18, 2014 and is open for public comment until October 16, 2014. The Climate Action Plan calls for the rule to be finalized no later than June 1, 2015, and requires that states submit to U.S. EPA their implementation plans no later than June 30, 2016. The proposed rule establishes emission reduction targets for each state and provides flexibility for each state to determine how to achieve its required reductions, including heat rate improvements at coal-fired power plants, fuel switching from coal to gas, renewable generation and new nuclear facilities, demand side energy efficiency, and the use of market-based instruments. | |||||||||||||||||||||
To the extent that the final Section 111(d) rule results in emission reductions from fossil fuel fired plants, and thereby imposes some form of direct or indirect price of carbon in competitive electricity markets, Exelon's overall low carbon generation portfolio results could benefit. | |||||||||||||||||||||
Litigation and Regulatory Matters | |||||||||||||||||||||
Except to the extent noted below, the circumstances set forth in Note 22 of the Exelon 2013 Form 10-K describe, in all material respects, the current status of litigation matters. The following is an update to that discussion. | |||||||||||||||||||||
Asbestos Personal Injury Claims (Exelon, Generation, PECO and BGE) | |||||||||||||||||||||
Exelon and Generation. Generation maintains a reserve for claims associated with asbestos-related personal injury actions in certain facilities that are currently owned by Generation or were previously owned by ComEd and PECO. The reserve is recorded on an undiscounted basis and excludes the estimated legal costs associated with handling these matters, which could be material. | |||||||||||||||||||||
At June 30, 2014 and December 31, 2013, Generation had reserved approximately $104 million and $90 million, respectively, in total for asbestos-related bodily injury claims. As of June 30, 2014, approximately $21 million of this amount related to 247 open claims presented to Generation, while the remaining $83 million of the reserve is for estimated future asbestos-related bodily injury claims anticipated to arise through 2050, based on actuarial assumptions and analyses, which are updated on an annual basis. On a quarterly basis, Generation monitors actual experience against the number of forecasted claims to be received and expected claim payments and evaluates whether an adjustment to the reserve is necessary. During the second quarter of 2014, Generation increased its reserve by approximately $15 million, primarily due to increased actual and projected number and severity of claims. | |||||||||||||||||||||
On November 22, 2013, the Supreme Court of Pennsylvania held that the Pennsylvania Workers Compensation Act does not apply to an employee's disability or death resulting from occupational disease, such as diseases related to asbestos exposure, which manifests more than 300 weeks after the employee's last employment-based exposure, and that therefore the exclusivity provision of the Act does not preclude such employee from suing his or her employer in court. The Supreme Court's ruling reverses previous rulings by the Pennsylvania Superior Court precluding current and former employees from suing their employers in court, despite the fact that the same employee was not eligible for workers compensation benefits for diseases that manifest more than 300 weeks after the employee's last employment-based exposure to asbestos. Currently, Exelon, Generation and PECO are unable to predict whether and to what extent they may experience additional claims in the future as a result of this ruling; as such no increase to the asbestos-related bodily injury liability has been recorded as of June 30, 2014. Increased claims activity resulting from this ruling could have a material adverse effect on Exelon's, Generation's and PECO's future results of operations and cash flows. | |||||||||||||||||||||
BGE. Since 1993, BGE and certain Constellation (now Generation) subsidiaries have been involved in several actions concerning asbestos. The actions are based upon the theory of "premises liability," alleging that BGE and Generation knew of and exposed individuals to an asbestos hazard. In addition to BGE and Generation, numerous other parties are defendants in these cases. | |||||||||||||||||||||
Approximately 486 individuals who were never employees of BGE or certain Constellation subsidiaries have pending claims each seeking several million dollars in compensatory and punitive damages. Cross-claims and third-party claims brought by other defendants may also be filed against BGE and certain Constellation subsidiaries in these actions. To date, most asbestos claims which have been resolved have been dismissed or resolved without any payment by BGE or certain Constellation subsidiaries and a small minority of these cases has been resolved for amounts that were not material to BGE or Generation's financial results. | |||||||||||||||||||||
Discovery begins in these cases after they are placed on the trial docket. At present, only two of the pending cases are set for trial. Given the limited discovery in these cases, BGE and Generation do not know the specific facts that are necessary to provide an estimate of the reasonably possible loss relating to these claims; as such, no accrual has been made and a range of loss is not estimable. The specific facts not known include: | |||||||||||||||||||||
the identity of the facilities at which the plaintiffs allegedly worked as contractors; | |||||||||||||||||||||
the names of the plaintiffs' employers; | |||||||||||||||||||||
the dates on which and the places where the exposure allegedly occurred; and | |||||||||||||||||||||
the facts and circumstances relating to the alleged exposure. | |||||||||||||||||||||
Insurance and hold harmless agreements from contractors who employed the plaintiffs may cover a portion of any awards in the actions. | |||||||||||||||||||||
Continuous Power Interruption (ComEd) | |||||||||||||||||||||
Section 16-125 of the Illinois Public Utilities Act provides that in the event an electric utility, such as ComEd, experiences a continuous power interruption of four hours or more that affects (in ComEd's case) more than 30,000 customers, the utility may be liable for actual damages suffered by customers as a result of the interruption and may be responsible for reimbursement of local governmental emergency and contingency expenses incurred in connection with the interruption. Recovery of consequential damages is barred. The affected utility may seek from the ICC a waiver of these liabilities when the utility can show that the cause of the interruption was unpreventable damage due to weather events or conditions, customer tampering, or certain other causes enumerated in the law. | |||||||||||||||||||||
On August 18, 2011, ComEd sought from the ICC a determination that ComEd is not liable for damage compensation to customers in connection with the July 11, 2011 storm system that produced multiple power interruptions that in the aggregate affected more than 900,000 customers in ComEd's service territory, as well as for five other storm systems that affected ComEd's customers during June and July 2011 (Summer 2011 Storm Docket). In addition, on September 29, 2011, ComEd sought from the ICC a determination that it was not liable for damage compensation related to the February 1, 2011 blizzard (February 2011 Blizzard Docket). | |||||||||||||||||||||
On June 5, 2013, the ICC approved a complete waiver of liability for five of the six summer storms and the February 2011 blizzard. The ICC held that for the July 11, 2011 storm, 34,559 interruptions were preventable and therefore no waiver should apply. As required by the ICC's Order, ComEd notified relevant customers that they may be entitled to seek reimbursement of incurred costs in accordance with a claims procedure established under ICC rules and regulations. In addition, the ICC found that ComEd did not systematically fail in its duty to provide adequate, reliable and safe service. As a result, the ICC rejected the Illinois Attorney General's request for the ICC to open an investigation into ComEd's infrastructure and storm hardening investments. | |||||||||||||||||||||
Following the ICC's June 26, 2013 denial of ComEd's request for rehearing, on June 27, 2013 ComEd filed an appeal of both the summer and winter storm dockets with the Illinois Appellate Court regarding the ICC's interpretation of Section 16-125 of the Illinois Public Utilities Act. On July 31, 2014, the Illinois Appellate Court reaffirmed the ICC's decision in the appeal of the Summer 2011 Storm Docket and dismissed the appeal of the February 2011 Blizzard Docket. The Illinois Appellate Court's opinion has no accounting impact as ComEd previously established a liability in connection with the June 5, 2013 ICC ruling discussed below. | |||||||||||||||||||||
As a result of the ICC's June 5, 2013 ruling, ComEd established a liability, which was not material, for potential reimbursements for actual damages incurred by the 34,559 customers covered by the ICC's June 5, 2013 Order. The liability recorded represents the low end of a range of potential losses given that no amount within the range represents a better estimate. ComEd's ultimate liability will be based on actual claims eligible for reimbursement as well as the outcome of the appeal. Although reimbursements for actual damages will differ from the estimated accrual recorded, at this time ComEd does not expect the difference to be material to ComEd's results of operations or cash flows. | |||||||||||||||||||||
ComEd has not recorded an accrual for reimbursement of local governmental emergency and contingency expenses as a range of loss, if any, cannot be reasonably estimated at this time, but may be material to ComEd's results of operations and cash flows. | |||||||||||||||||||||
Telephone Consumer Protection Act Lawsuit (ComEd) | |||||||||||||||||||||
On November 19, 2013, a class action complaint was filed in the Northern District of Illinois on behalf of a single individual and a presumptive class that would include all customers that ComEd enrolled in its Outage Alert text message program. The complaint alleges that ComEd violated the Telephone Consumer Protection Act (“TCPA”) by sending approximately 1.2 million text messages to customers without first obtaining their consent to receive such messages. The complaint seeks certification of a class along with statutory damages, attorneys' fees, and an order prohibiting ComEd from sending additional text messages. Such statutory damages could range from $ 500 to $ 1,500 per text. On February 21, 2014, ComEd filed a motion to dismiss this class action complaint and intends to contest the allegations of this suit. On June 4, 2014, ComEd's motion to dismiss was denied. As of June 30, 2014, ComEd has a reserve, which is not material, representing its best estimate of probable loss associated with this class action complaint. As ComEd is unable to predict the ultimate outcome of this proceeding, actual damages may differ from the estimated amount recorded, which may be material to ComEd's results of operations, cash flows, and financial position. | |||||||||||||||||||||
Baltimore City Franchise Taxes (BGE) | |||||||||||||||||||||
The City of Baltimore claims that BGE has maintained electric facilities in the City's public right-of-ways for over one hundred years without the proper franchise rights from the City. BGE has reviewed the City's claim and believes that it lacks merit. BGE has not recorded an accrual for payment of franchise fees for past periods as a range of loss, if any, cannot be reasonably estimated at this time. Franchise fees assessed in future periods may be material to BGE's results of operations and cash flows. | |||||||||||||||||||||
General (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||||||
The Registrants are involved in various other litigation matters that are being defended and handled in the ordinary course of business. The assessment of whether a loss is probable or a reasonable possibility, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. The Registrants maintain accruals for such losses that are probable of being incurred and subject to reasonable estimation. Management is sometimes unable to estimate an amount or range of reasonably possible loss, particularly where (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss. | |||||||||||||||||||||
Income Taxes (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||||||
See Note 11 - Income Taxes for information regarding the Registrants' income tax refund claims and certain tax positions, including the 1999 sale of fossil generating assets. |
Supplemental_Financial_Informa
Supplemental Financial Information (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | |||||||||||||||||
Jun. 30, 2014 | ||||||||||||||||||
Supplemental Financial Information Tables [Line Items] | ' | |||||||||||||||||
Supplemental Financial Information (Exelon, Generation, ComEd, PECO and BGE) | ' | |||||||||||||||||
19. Supplemental Financial Information (Exelon, Generation, ComEd, PECO and BGE) | ||||||||||||||||||
Supplemental Statement of Operations Information | ||||||||||||||||||
The following tables provide additional information about the Registrants' Consolidated Statements of Operations and Comprehensive Income for the three and six months ended June 30, 2014 and 2013: | ||||||||||||||||||
Three Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Other, Net | ||||||||||||||||||
Decommissioning-related activities: | ||||||||||||||||||
Net realized income on decommissioning trust funds (a) | ||||||||||||||||||
Regulatory agreement units | $ | 68 | $ | 68 | $ | 0 | $ | 0 | $ | 0 | ||||||||
Non-regulatory agreement units | 38 | 38 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on decommissioning trust funds | ||||||||||||||||||
Regulatory agreement units | 172 | 172 | 0 | 0 | 0 | |||||||||||||
Non-regulatory agreement units | 128 | 128 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on pledged assets | ||||||||||||||||||
Zion Station decommissioning | 10 | 10 | 0 | 0 | 0 | |||||||||||||
Regulatory offset to decommissioning trust fund-related | ||||||||||||||||||
activities (b) | -204 | -204 | 0 | 0 | 0 | |||||||||||||
Total decommissioning-related activities | 212 | 212 | 0 | 0 | 0 | |||||||||||||
Investment income (expense) | 7 | 7 | 0 | -1 | 2 | (c) | ||||||||||||
Long-term lease income | 10 | 0 | 0 | 0 | 0 | |||||||||||||
Interest income (expense) related to uncertain income tax positions | -2 | 3 | 0 | 0 | 0 | |||||||||||||
AFUDC - Equity | 5 | 0 | 0 | 1 | 3 | |||||||||||||
Other | 11 | 6 | 5 | 1 | 0 | |||||||||||||
Other, net | $ | 243 | $ | 228 | $ | 5 | $ | 1 | $ | 5 | ||||||||
Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Other, Net | ||||||||||||||||||
Decommissioning-related activities: | ||||||||||||||||||
Net realized income on decommissioning trust funds (a) | ||||||||||||||||||
Regulatory agreement units | $ | 111 | $ | 111 | $ | 0 | $ | 0 | $ | 0 | ||||||||
Non-regulatory agreement units | 63 | 63 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on decommissioning trust funds | ||||||||||||||||||
Regulatory agreement units | 234 | 234 | 0 | 0 | 0 | |||||||||||||
Non-regulatory agreement units | 141 | 141 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on pledged assets | ||||||||||||||||||
Zion Station decommissioning | 20 | 20 | 0 | 0 | 0 | |||||||||||||
Regulatory offset to decommissioning trust fund-related | ||||||||||||||||||
activities (b) | -299 | -299 | 0 | 0 | 0 | |||||||||||||
Total decommissioning-related activities | 270 | 270 | 0 | 0 | 0 | |||||||||||||
Investment income (expense) | 8 | 8 | 0 | -1 | 4 | (c) | ||||||||||||
Long-term lease income | 17 | 0 | 0 | 0 | 0 | |||||||||||||
Interest income related to uncertain income tax positions | 7 | 17 | 0 | 0 | 0 | |||||||||||||
AFUDC - Equity | 11 | 0 | 3 | 3 | 6 | |||||||||||||
Other | 35 | 23 | 7 | 1 | -1 | |||||||||||||
Other, net | $ | 348 | $ | 318 | $ | 10 | $ | 3 | $ | 9 | ||||||||
Three Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Other, Net | ||||||||||||||||||
Decommissioning-related activities: | ||||||||||||||||||
Net realized income on decommissioning trust funds (a) | ||||||||||||||||||
Regulatory agreement units | $ | 47 | $ | 47 | $ | 0 | $ | 0 | $ | 0 | ||||||||
Non-regulatory agreement units | 16 | 16 | 0 | 0 | 0 | |||||||||||||
Net unrealized losses on decommissioning trust funds | ||||||||||||||||||
Regulatory agreement units | -102 | -102 | 0 | 0 | 0 | |||||||||||||
Non-regulatory agreement units | -40 | -40 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on pledged assets | ||||||||||||||||||
Zion Station decommissioning | 2 | 2 | 0 | 0 | 0 | |||||||||||||
Regulatory offset to decommissioning trust fund-related | ||||||||||||||||||
activities (b) | 40 | 40 | 0 | 0 | 0 | |||||||||||||
Total decommissioning-related activities | -37 | -37 | 0 | 0 | 0 | |||||||||||||
Investment income (expense) | 2 | 0 | 0 | -1 | 2 | (c) | ||||||||||||
Long-term lease income | 5 | 0 | 0 | 0 | 0 | |||||||||||||
Interest expense related to uncertain income tax positions | -1 | -2 | 0 | 0 | 0 | |||||||||||||
AFUDC - Equity | 5 | 0 | 3 | 1 | 2 | |||||||||||||
Other | 9 | 6 | 3 | 0 | 0 | |||||||||||||
Other, net | $ | -17 | $ | -33 | $ | 6 | $ | 0 | $ | 4 | ||||||||
Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Other, Net | ||||||||||||||||||
Decommissioning-related activities: | ||||||||||||||||||
Net realized income on decommissioning trust funds (a) | ||||||||||||||||||
Regulatory agreement units | $ | 84 | $ | 84 | $ | 0 | $ | 0 | $ | 0 | ||||||||
Non-regulatory agreement units | 30 | 30 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on decommissioning trust funds | ||||||||||||||||||
Regulatory agreement units | 92 | 92 | 0 | 0 | 0 | |||||||||||||
Non-regulatory agreement units | 24 | 24 | 0 | 0 | 0 | |||||||||||||
Net unrealized gains on pledged assets | ||||||||||||||||||
Zion Station decommissioning | 3 | 3 | 0 | 0 | 0 | |||||||||||||
Regulatory offset to decommissioning trust fund-related | ||||||||||||||||||
activities (b) | -148 | -148 | 0 | 0 | 0 | |||||||||||||
Total decommissioning-related activities | 85 | 85 | 0 | 0 | 0 | |||||||||||||
Investment income (expense) | 5 | -1 | 0 | -1 | 5 | (c) | ||||||||||||
Long-term lease income | 13 | 0 | 0 | 0 | 0 | |||||||||||||
Interest income related to uncertain income tax positions | 24 | 3 | 0 | 0 | 0 | |||||||||||||
AFUDC - Equity | 12 | 0 | 6 | 2 | 4 | |||||||||||||
Other | 16 | 8 | 5 | 2 | 0 | |||||||||||||
Other, net | $ | 155 | $ | 95 | $ | 11 | $ | 3 | $ | 9 | ||||||||
__________ | ||||||||||||||||||
(a) Includes investment income and realized gains and losses on sales of investments of the trust funds. | ||||||||||||||||||
(b) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of net income taxes related to all NDT fund activity for those units. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | ||||||||||||||||||
(c) Relates to the cash return on BGE's rate stabilization deferral. See Note 5 - Regulatory Matters for additional information regarding the rate stabilization deferral. | ||||||||||||||||||
Supplemental Cash Flow Information | ||||||||||||||||||
The following tables provide additional information regarding the Registrants' Consolidated Statements of Cash Flows for the six months ended June 30, 2014 and 2013: | ||||||||||||||||||
Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Depreciation, amortization, accretion and depletion | ||||||||||||||||||
Property, plant and equipment | $ | 1,015 | $ | 444 | $ | 290 | $ | 112 | $ | 142 | ||||||||
Regulatory assets | 117 | 0 | 57 | 5 | 55 | |||||||||||||
Amortization of intangible assets, net | 22 | 22 | 0 | 0 | 0 | |||||||||||||
Amortization of energy contract assets and liabilities (a) | 113 | 118 | 0 | 0 | 0 | |||||||||||||
Nuclear fuel (b) | 499 | 499 | 0 | 0 | 0 | |||||||||||||
ARO accretion (c) | 159 | 159 | 0 | 0 | 0 | |||||||||||||
Total depreciation, amortization, accretion and depletion | $ | 1,925 | $ | 1,242 | $ | 347 | $ | 117 | $ | 197 | ||||||||
Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Depreciation, amortization, accretion and depletion | ||||||||||||||||||
Property, plant and equipment | $ | 942 | $ | 402 | $ | 275 | $ | 109 | $ | 128 | ||||||||
Regulatory assets | 112 | 0 | 62 | 4 | 47 | |||||||||||||
Amortization of intangible assets, net | 22 | 22 | 0 | 0 | 0 | |||||||||||||
Amortization of energy contract assets and liabilities (a) | 306 | 344 | 0 | 0 | 0 | |||||||||||||
Nuclear fuel (b) | 454 | 454 | 0 | 0 | 0 | |||||||||||||
ARO accretion (c) | 136 | 136 | 0 | 0 | 0 | |||||||||||||
Total depreciation, amortization, accretion and depletion | $ | 1,972 | $ | 1,358 | $ | 337 | $ | 113 | $ | 175 | ||||||||
__________ | ||||||||||||||||||
Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Other non-cash operating activities: | ||||||||||||||||||
Pension and non-pension postretirement benefit costs | $ | 315 | $ | 139 | $ | 96 | $ | 21 | $ | 33 | ||||||||
Loss from equity method investments | 20 | 20 | 0 | 0 | 0 | |||||||||||||
Provision for uncollectible accounts | 59 | 8 | -8 | 28 | 30 | |||||||||||||
Stock-based compensation costs | 68 | 0 | 0 | 0 | 0 | |||||||||||||
Other decommissioning-related activity (a) | -85 | -85 | 0 | 0 | 0 | |||||||||||||
Energy-related options (b) | 63 | 63 | 0 | 0 | 0 | |||||||||||||
Amortization of regulatory asset related to debt costs | 5 | 0 | 4 | 1 | 0 | |||||||||||||
Amortization of rate stabilization deferral | 33 | 0 | 0 | 0 | 33 | |||||||||||||
Amortization of debt fair value adjustment | -26 | -12 | 0 | 0 | 0 | |||||||||||||
Discrete impacts of EIMA (c) | 9 | 0 | 9 | 0 | 0 | |||||||||||||
Amortization of debt costs | 19 | 6 | -3 | 1 | 1 | |||||||||||||
Increase in inventory reserve | 3 | 3 | 1 | 0 | 0 | |||||||||||||
Impairment of investments in direct financing leases (e) | 24 | 0 | 0 | 0 | 0 | |||||||||||||
Impairment charges (f) | 86 | 86 | 0 | 0 | 0 | |||||||||||||
Other | -26 | -19 | 0 | -1 | -8 | |||||||||||||
Total other non-cash operating activities | $ | 567 | $ | 209 | $ | 99 | $ | 50 | $ | 89 | ||||||||
Changes in other assets and liabilities: | ||||||||||||||||||
Under/over-recovered energy and transmission costs | $ | 60 | $ | 0 | $ | 61 | $ | -6 | $ | 8 | ||||||||
Other regulatory assets and liabilities | -25 | 0 | -30 | -13 | -49 | |||||||||||||
Other current assets | -157 | 13 | -5 | -89 | (h) | 51 | ||||||||||||
Other noncurrent assets and liabilities | -158 | -69 | 22 | -6 | -2 | |||||||||||||
Total changes in other assets and liabilities | $ | -280 | $ | -56 | $ | 48 | $ | -114 | $ | 8 | ||||||||
Non-cash investing and financing activities: | ||||||||||||||||||
Fair value of net assets recorded upon CENG | ||||||||||||||||||
consolidation (j) | $ | 3,400 | $ | 3,400 | $ | 0 | $ | 0 | $ | 0 | ||||||||
Issuance of equity units (k) | 131 | 0 | 0 | 0 | 0 | |||||||||||||
Uranium procurement (l) | 38 | 38 | 0 | 0 | 0 | |||||||||||||
Indemnification of like-kind exchange position (m) | 0 | 0 | 2 | 0 | 0 | |||||||||||||
Total non-cash investing and financing activities: | $ | 3,569 | $ | 3,438 | $ | 2 | $ | 0 | $ | 0 | ||||||||
Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Other non-cash operating activities: | ||||||||||||||||||
Pension and non-pension postretirement benefit costs | $ | 409 | $ | 173 | $ | 154 | $ | 21 | $ | 27 | ||||||||
Loss in equity method investments | 30 | 30 | 0 | 0 | 0 | |||||||||||||
Provision for uncollectible accounts | 55 | 10 | 4 | 27 | 14 | |||||||||||||
Stock-based compensation costs | 70 | 0 | 0 | 0 | 0 | |||||||||||||
Other decommissioning-related activity (a) | -62 | -62 | 0 | 0 | 0 | |||||||||||||
Energy-related options (b) | 65 | 65 | 0 | 0 | 0 | |||||||||||||
Amortization of regulatory asset related to debt costs | 6 | 0 | 5 | 1 | 0 | |||||||||||||
Amortization of rate stabilization deferral | 29 | 0 | 0 | 0 | 29 | |||||||||||||
Amortization of debt fair value adjustment | -22 | -22 | 0 | 0 | 0 | |||||||||||||
Discrete impacts from EIMA (c) | -126 | 0 | -126 | 0 | 0 | |||||||||||||
Amortization of debt costs | 8 | 5 | 2 | 1 | 0 | |||||||||||||
Merger integration costs (d) | -6 | 0 | 0 | 0 | -6 | |||||||||||||
Impairment of investments in direct financing leases(e) | 14 | 0 | 0 | 0 | 0 | |||||||||||||
Increase in inventory reserve | 13 | 13 | 0 | 0 | 0 | |||||||||||||
Impairment charges (g) | 110 | 110 | 0 | 0 | 0 | |||||||||||||
Other | -17 | -7 | 0 | 0 | -3 | |||||||||||||
Total other non-cash operating activities | $ | 576 | $ | 315 | $ | 39 | $ | 50 | $ | 61 | ||||||||
Changes in other assets and liabilities: | ||||||||||||||||||
Under/over-recovered energy and transmission costs | $ | -24 | $ | 0 | $ | -61 | $ | 19 | $ | 18 | ||||||||
Other regulatory assets and liabilities | 3 | 0 | -28 | -5 | -82 | |||||||||||||
Other current assets | -123 | -134 | 2 | -62 | (h) | 99 | ||||||||||||
Other noncurrent assets and liabilities | 277 | -34 | 304 | (i) | -1 | 28 | ||||||||||||
Total changes in other assets and liabilities | $ | 133 | $ | -168 | $ | 217 | $ | -49 | $ | 63 | ||||||||
Non-cash investing and financing activities: | ||||||||||||||||||
Consolidated VIE dividend to non-controlling interest | $ | 63 | 63 | 0 | 0 | 0 | ||||||||||||
Indemnification of like-kind exchange position (l) | 0 | 0 | 174 | 0 | 0 | |||||||||||||
Total non-cash investing and financing activities | $ | 63 | $ | 63 | $ | 174 | $ | 0 | $ | 0 | ||||||||
DOE Smart Grid Investment Grant (Exelon, BGE and PECO). For the six months ended June 30, 2014, PECO has included in the capital expenditures line item under investing activities of the cash flow statement capital expenditures of $2 million and reimbursements of $3 million related to PECO's DOE SGIG programs. For the six months ended June 30, 2013, Exelon, PECO and BGE have included in the capital expenditures line item under investing activities of the cash flow statement capital expenditures of $41 million, $12 million and $29 million, respectively, and reimbursements of $50 million, $16 million and $34 million, respectively, related to PECO's and BGE's DOE SGIG programs. See Note 5 - Regulatory Matters for additional information regarding the DOE SGIG. | ||||||||||||||||||
_________ | ||||||||||||||||||
(a) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | ||||||||||||||||||
(b) Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations. | ||||||||||||||||||
(c) Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate tariff. See Note 5 – Regulatory Matters for more information. | ||||||||||||||||||
(d) Relates to integration costs to achieve distribution synergies related to the Constellation merger transaction. See Note 5 – Regulatory Matters for more information. | ||||||||||||||||||
(e) Relates to an other than temporary decline in the estimated residual value of Exelon's direct financing leases. See Note 7 – Impairment of Long-Lived Assets for more information. | ||||||||||||||||||
(f) Relates to the impairment of long-lived assets at Generation. See Note 7 – Impairment of Long-Lived Assets for additional information. | ||||||||||||||||||
(g) Relates to the cancellation of uprate projects at Generation. See Note 7 – Impairment of Long-Lived Assets for additional information. | ||||||||||||||||||
(h) Relates primarily to prepaid utility taxes. | ||||||||||||||||||
(i) Relates primarily to interest payable related to like-kind exchange tax position. See Note 11 – Income Taxes for discussion of the like-kind exchange tax position. | ||||||||||||||||||
(j) See Note 6 – Investment in Constellation Energy Nuclear Group, LLC for additional information. | ||||||||||||||||||
(k) Relates to the present value of the contract payments for the equity units issued by Exelon. See Note 16 – Common Stock for additional information. | ||||||||||||||||||
(l) Relates to the nuclear fuel procurement contract for the purchase of a fixed quantity of uranium, which was delivered to Generation on June 30, 2014. Generation is required to make payments starting June 30, 2016, with the final payment being due no later than June 30, 2018. | ||||||||||||||||||
(m) See Note 11 – Income Taxes for discussion of the like-kind exchange tax position. | ||||||||||||||||||
Supplemental Balance Sheet Information | ||||||||||||||||||
The following tables provide additional information about assets and liabilities of the Registrants as of June 30, 2014 and December 31, 2013. | ||||||||||||||||||
30-Jun-14 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Property, plant and equipment: | ||||||||||||||||||
Accumulated depreciation and amortization | $ | 14,369 | (a) | $ | 7,397 | (a) | $ | 3,325 | $ | 2,969 | $ | 2,781 | ||||||
Accounts receivable: | ||||||||||||||||||
Allowance for uncollectible accounts | 293 | 56 | 71 | 124 | 42 | |||||||||||||
31-Dec-13 | Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Property, plant and equipment: | ||||||||||||||||||
Accumulated depreciation and amortization | $ | 13,713 | (b) | $ | 7,034 | (b) | $ | 3,184 | $ | 2,935 | $ | 2,702 | ||||||
Accounts receivable: | ||||||||||||||||||
Allowance for uncollectible accounts | 272 | 57 | 62 | 107 | 46 | |||||||||||||
___________ | ||||||||||||||||||
(a) Includes accumulated amortization of nuclear fuel in the reactor core of $2,411 million. | ||||||||||||||||||
(b) Includes accumulated amortization of nuclear fuel in the reactor core of $2,371 million. | ||||||||||||||||||
PECO Installment Plan Receivables (Exelon and PECO) | ||||||||||||||||||
PECO enters into payment agreements with certain delinquent customers, primarily residential, seeking to restore their service, as required by the PAPUC. Customers with past due balances that meet certain income criteria are provided the option to enter into an installment payment plan, some of which have terms greater than one year, to repay past due balances in addition to paying for their ongoing service on a current basis. The receivable balance for these payment agreement receivables is recorded in accounts receivable for the current portion and other deferred debits and other assets for the noncurrent portion. The net receivable balance for installment plans with terms greater than one year was $21 million as of June 30, 2014 and $19 million as of December 31, 2013. The allowance for uncollectible accounts reserve methodology and assessment of the credit quality of the installment plan receivables are consistent with the customer accounts receivable methodology discussed in Note 1 – Significant Accounting Policies of the Exelon 2013 Form 10-K. The allowance for uncollectible accounts balance associated with these receivables at June 30, 2014 of $20 million consists of $1 million, $4 million and $15 million for low risk, medium risk and high risk segments, respectively. The allowance for uncollectible accounts balance at December 31, 2013 of $18 million consists of $1 million, $4 million and $13 million for low risk, medium risk and high risk segments, respectively. The balance of the payment agreement is billed to the customer in equal monthly installments over the term of the agreement. Installment receivables outstanding as of June 30, 2014 and December 31, 2013 include balances not yet presented on the customer bill, accounts currently billed and an immaterial amount of past due receivables. When a customer defaults on its payment agreement, the terms of which are defined by plan type, the entire balance of the agreement becomes due and the balance is reclassified to current customer accounts receivable and reserved for in accordance with the methodology discussed in Note 1 – Significant Accounting Policies of the Exelon 2013 Form 10-K. |
Segment_Information_Exelon_Gen
Segment Information (Exelon, Generation, ComEd, PECO and BGE) | 6 Months Ended | ||||||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||||||
Segment Information [Line Items] | ' | ||||||||||||||||||||||
Segment Information (Exelon, Generation, ComEd, PECO and BGE) | ' | ||||||||||||||||||||||
20. Segment Information (Exelon, Generation, ComEd, PECO and BGE) | |||||||||||||||||||||||
Operating segments for each of the Registrants are determined based on information used by the chief operating decision maker(s) (CODM) in deciding how to evaluate performance and allocate resources at each of the Registrants. | |||||||||||||||||||||||
Exelon has nine reportable segments, ComEd, PECO, BGE and Generation's six power marketing reportable segments consisting of the Mid-Atlantic, Midwest, New England, New York, ERCOT and all other regions not considered individually significant referred to collectively as “Other Regions”; including the South, West and Canada. ComEd, PECO and BGE each represent a single reportable segment; as such, no separate segment information is provided for these Registrants. Exelon's CODM evaluates the performance of and allocates resources to ComEd, PECO and BGE based on net income and return on equity. | |||||||||||||||||||||||
The CODMs for ComEd, PECO, and BGE evaluate performance and allocate resources for their respective companies based on net income and return on equity for ComEd, PECO, and BGE each as single integrated businesses. | |||||||||||||||||||||||
The foundation of Generation's six reportable segments is based on the geographic location of its assets, and is largely representative of the footprints of an ISO / RTO and/or NERC region. Descriptions of each of Generation's six reportable segments are as follows: | |||||||||||||||||||||||
Mid-Atlantic represents operations in the eastern half of PJM, which includes Pennsylvania, New Jersey, Maryland, Virginia, West Virginia, Delaware, the District of Columbia and parts of North Carolina. | |||||||||||||||||||||||
Midwest represents operations in the western half of PJM, which includes portions of Illinois, Indiana, Ohio, Michigan, Kentucky and Tennessee, and the United States footprint of MISO excluding MISO's Southern Region, which covers all or most of North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, the remaining parts of Illinois, Indiana, Michigan and Ohio not covered by PJM, and parts of Montana, Missouri and Kentucky. | |||||||||||||||||||||||
New England represents the operations within ISO-NE covering the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont. | |||||||||||||||||||||||
New York represents operations within ISO-NY, which covers the state of New York in its entirety. | |||||||||||||||||||||||
ERCOT represents operations within Electric Reliability Council of Texas, covering most of the state of Texas. | |||||||||||||||||||||||
Other Regions not considered individually significant: | |||||||||||||||||||||||
South represents operations in the FRCC, MISO's Southern Region, and the remaining portions of the SERC not included within MISO or PJM, which includes all or most of Florida, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Tennessee, North Carolina, South Carolina and parts of Missouri, Kentucky and Texas. Generation's South region also includes operations in the SPP, covering Kansas, Oklahoma, most of Nebraska and parts of New Mexico, Texas, Louisiana, Missouri, Mississippi and Arkansas. | |||||||||||||||||||||||
West represents operations in the WECC, which includes California ISO, and covers the states of California, Oregon, Washington, Arizona, Nevada, Utah, Idaho, Colorado, and parts of New Mexico, Wyoming and South Dakota. | |||||||||||||||||||||||
Canada represents operations across the entire country of Canada and includes the AESO, OIESO and the Canadian portion of MISO. | |||||||||||||||||||||||
The CODMs for Exelon and Generation evaluate the performance of Generation's power marketing activities and allocate resources based on revenue net of purchased power and fuel expense. Generation believes that revenue net of purchased power and fuel expense is a useful measurement of operational performance. Revenue net of purchased power and fuel expense is not a presentation defined under GAAP and may not be comparable to other companies' presentations or deemed more useful than the GAAP information provided elsewhere in this report. Generation's operating revenues include all sales to third parties and sales to its affiliates, ComEd, PECO and BGE. Purchased power costs include all costs associated with the procurement and supply of electricity including capacity, energy and ancillary services. Fuel expense includes the fuel costs for Generation's own generation and fuel costs associated with tolling agreements. Generation's other business activities, including retail and wholesale gas, upstream natural gas, proprietary trading, energy efficiency and demand response, heating, cooling, and cogeneration facilities, and home improvements, sales of electric and gas appliances, servicing of heating, air conditioning, plumbing, electrical, and indoor quality systems, and investments in energy-related proprietary technology are not allocated to regions. Further, Generation's other miscellaneous revenues, unrealized mark-to-market impact of economic hedging activities, and amortization of certain intangible assets relating to commodity contracts recorded at fair value as a result of the merger with Constellation and the consolidation of CENG are also not allocated to a region. | |||||||||||||||||||||||
An analysis and reconciliation of the Registrants' reportable segment information to the respective information in the consolidated financial statements for the three months ended June 30, 2014 and 2013 is as follows: | |||||||||||||||||||||||
Three Months Ended June 30, 2014 and 2013 | |||||||||||||||||||||||
__________ | |||||||||||||||||||||||
(a) Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the three months ended June 30, 2014 include revenue from sales to PECO of $49 million and sales to BGE of $87 million in the Mid-Atlantic region, and sales to ComEd of $65 million in the Midwest region. For the three months ended June 30, 2013 intersegment revenues for Generation include revenue from sales to PECO of $97 million and sales to BGE of $99 million in the Mid-Atlantic region, sales to ComEd of $121 million in the Midwest region, and $10 million related to the unrealized mark-to-market gains related to the ComEd swap, which eliminate upon consolidation. | |||||||||||||||||||||||
(b) Other primarily includes Exelon's corporate operations, shared service entities and other financing and investment activities. | |||||||||||||||||||||||
(c) For the three months ended June 30, 2014 and 2013, utility taxes of $21 million and $18 million, respectively, are included in revenues and expenses for Generation. For the three months ended June 30, 2014 and 2013, utility taxes of $56 million and $56 million, respectively, are included in revenues and expenses for ComEd. For the three months ended June 30, 2014 and 2013, utility taxes of $30 million and $31 million, respectively, are included in revenues and expenses for PECO. For the three months ended June 30, 2014 and 2013, utility taxes of $19 million and $19 million, respectively, are included in revenues and expenses for BGE. | |||||||||||||||||||||||
(d) Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with Generation's sale of certain products and services by and between Exelon's segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||||||||||||
Generation total revenues (three months ended): | |||||||||||||||||||||||
2014 | 2013 | ||||||||||||||||||||||
Revenues from external customers (a) | Intersegment revenues | Total Revenues | Revenues from external customers (a) | Intersegment revenues | Total Revenues | ||||||||||||||||||
Mid-Atlantic | $ | 1,272 | $ | 5 | $ | 1,277 | $ | 1,220 | $ | 9 | $ | 1,229 | |||||||||||
Midwest | 981 | 0 | 981 | 1,076 | -5 | 1,071 | |||||||||||||||||
New England | 211 | 1 | 212 | 209 | -20 | 189 | |||||||||||||||||
New York | 194 | 0 | 194 | 175 | -1 | 174 | |||||||||||||||||
ERCOT | 198 | -1 | 197 | 319 | -4 | 315 | |||||||||||||||||
Other Regions (b) | 314 | -6 | 308 | 246 | -6 | 240 | |||||||||||||||||
Total Revenues for Reportable Segments | 3,170 | -1 | 3,169 | 3,245 | -27 | 3,218 | |||||||||||||||||
Other (c) | 619 | 1 | 620 | 825 | 27 | 852 | |||||||||||||||||
Total Generation Consolidated Operating Revenues | $ | 3,789 | $ | 0 | $ | 3,789 | $ | 4,070 | $ | - | $ | 4,070 | |||||||||||
(a) Includes all electric sales to third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||||||||||||||||
(b) Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||||||||||||||||
(c) Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $88 million and $234 million, for the three months ended June 30, 2014 and 2013, respectively, and elimination of intersegment revenues. | |||||||||||||||||||||||
Generation total revenues net of purchased power and fuel expense (three months ended): | |||||||||||||||||||||||
2014 | 2013 | ||||||||||||||||||||||
RNF from external customers (a) | Intersegment RNF | Total RNF | RNF from external customers (a) | Intersegment RNF | Total RNF | ||||||||||||||||||
Mid-Atlantic | $ | 906 | $ | 14 | $ | 920 | $ | 770 | $ | -2 | $ | 768 | |||||||||||
Midwest | 604 | 1 | 605 | 687 | -3 | 684 | |||||||||||||||||
New England | 88 | -24 | 64 | 85 | -35 | 50 | |||||||||||||||||
New York | 142 | 6 | 148 | 0 | 14 | 14 | |||||||||||||||||
ERCOT | 117 | -58 | 59 | 143 | -31 | 112 | |||||||||||||||||
Other Regions (b) | 157 | -82 | 75 | 111 | -52 | 59 | |||||||||||||||||
Total Revenues net of purchased power and fuel expense for Reportable Segments | 2,014 | -143 | 1,871 | 1,796 | -109 | 1,687 | |||||||||||||||||
Other (c) | -60 | 143 | 83 | 328 | 109 | 437 | |||||||||||||||||
Total Generation Revenues net of purchased power and fuel expense | $ | 1,954 | $ | 0 | $ | 1,954 | $ | 2,124 | $ | - | $ | 2,124 | |||||||||||
(a) Includes purchases and sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||||||||||||||||
(b) Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||||||||||||||||
(c) Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $50 million and $167 million for the three months ended June 30, 2014 and 2013, respectively, and the elimination of intersegment revenues. | |||||||||||||||||||||||
Six Months Ended June 30, 2014 and 2013 | |||||||||||||||||||||||
Intersegment Eliminations | |||||||||||||||||||||||
Generation (a)(b) | ComEd | PECO | BGE | Other (c) | Exelon | ||||||||||||||||||
Total revenues (d): | |||||||||||||||||||||||
2014 | $ | 8,179 | $ | 2,262 | $ | 1,649 | $ | 1,707 | $ | 619 | $ | -1,155 | $ | 13,261 | |||||||||
2013 | 7,603 | 2,239 | 1,567 | 1,533 | 615 | -1,334 | 12,223 | ||||||||||||||||
Intersegment revenues (e): | |||||||||||||||||||||||
2014 | $ | 517 | $ | 1 | $ | 1 | $ | 18 | $ | 618 | $ | -1,155 | $ | 0 | |||||||||
2013 | 710 | 1 | 0 | 8 | 615 | -1,334 | 0 | ||||||||||||||||
Net income (loss): | |||||||||||||||||||||||
2014 | $ | 188 | $ | 209 | $ | 173 | $ | 106 | $ | -25 | $ | 0 | $ | 651 | |||||||||
2013 | 310 | 14 | 200 | 106 | -132 | 0 | 498 | ||||||||||||||||
__________ | |||||||||||||||||||||||
(a) Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the six months ended June 30, 2014 include revenue from sales to PECO of $ 137 million and sales to BGE of $ 207 million in the Mid-Atlantic region, and sales to ComEd of $ 173 million in the Midwest region. For the six months ended June 30, 2013 intersegment revenues for Generation include revenue from sales to PECO of $238 million in the Mid-Atlantic region and sales to BGE of $212 million in the Mid-Atlantic region, and sales to ComEd of $266 million in the Midwest region, net of $7 million related to the unrealized mark-to-market losses related to the ComEd swap, which eliminate upon consolidation. | |||||||||||||||||||||||
(b) Amounts include activity recorded at CENG from April 1, 2014, the date of integration, through June 30, 2014. | |||||||||||||||||||||||
(c) Other primarily includes Exelon's corporate operations, shared service entities and other financing and investment activities. | |||||||||||||||||||||||
(d) For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. | |||||||||||||||||||||||
(e) Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with the Generation's sale of certain products and services by and between Exelon's segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||||||||||||
Generation total revenues (six months ended): | |||||||||||||||||||||||
2014 | 2013 | ||||||||||||||||||||||
Revenues from external customers (a) | Intersegment revenues | Total Revenues | Revenues from external customers (a) | Intersegment revenues | Total Revenues | ||||||||||||||||||
Mid-Atlantic (b) | $ | 2,713 | $ | -18 | $ | 2,695 | $ | 2,551 | $ | 1 | $ | 2,552 | |||||||||||
Midwest | 2,239 | 12 | 2,251 | 2,257 | 2 | 2,259 | |||||||||||||||||
New England | 756 | 5 | 761 | 600 | -8 | 592 | |||||||||||||||||
New York (b) | 384 | -3 | 381 | 350 | -7 | 343 | |||||||||||||||||
ERCOT | 441 | -1 | 440 | 612 | -4 | 608 | |||||||||||||||||
Other Regions (c) | 648 | 1 | 649 | 429 | 36 | 465 | |||||||||||||||||
Total Revenues for Reportable Segments | 7,181 | -4 | 7,177 | 6,799 | 20 | 6,819 | |||||||||||||||||
Other (d) | 998 | 4 | 1,002 | 804 | -20 | 784 | |||||||||||||||||
Total Generation Consolidated Operating Revenues | $ | 8,179 | $ | 0 | $ | 8,179 | $ | 7,603 | $ | 0 | $ | 7,603 | |||||||||||
(a) Includes all wholesale and retail electric sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||||||||||||||||
(b) Amounts include activity recorded at CENG from April 1, 2014, the date of integration, through June 30, 2014. | |||||||||||||||||||||||
(c) Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||||||||||||||||
(d) Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $180 million and $478 million, for the six months ended June 30, 2014 and 2013, respectively, and elimination of intersegment revenues. | |||||||||||||||||||||||
Generation total revenues net of purchased power and fuel expense (six months ended): | |||||||||||||||||||||||
2014 | 2013 | ||||||||||||||||||||||
RNF from external customers (a) | Intersegment RNF | Total RNF | RNF from external customers (a) | Intersegment RNF | Total RNF | ||||||||||||||||||
Mid-Atlantic (b) | $ | 1,690 | $ | -75 | $ | 1,615 | $ | 1,622 | $ | -10 | $ | 1,612 | |||||||||||
Midwest | 1,134 | 27 | 1,161 | 1,397 | 4 | 1,401 | |||||||||||||||||
New England | 242 | -42 | 200 | 103 | -23 | 80 | |||||||||||||||||
New York (b) | 113 | 14 | 127 | -16 | 8 | -8 | |||||||||||||||||
ERCOT | 272 | -130 | 142 | 255 | -42 | 213 | |||||||||||||||||
Other Regions (c) | 307 | -127 | 180 | 122 | -17 | 105 | |||||||||||||||||
Total Revenues net of purchased power and fuel expense for Reportable Segments | 3,758 | -333 | 3,425 | 3,483 | -80 | 3,403 | |||||||||||||||||
Other (d) | -770 | 333 | -437 | 6 | 80 | 86 | |||||||||||||||||
Total Generation Revenues net of purchased power and fuel expense | $ | 2,988 | $ | 0 | $ | 2,988 | $ | 3,489 | $ | 0 | $ | 3,489 | |||||||||||
(a) Includes purchases and sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||||||||||||||||
(b) Amounts include activity recorded at CENG from April 1, 2014, the date of integration, through June 30, 2014. | |||||||||||||||||||||||
(c) Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||||||||||||||||
(d) Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $92 million and $341 million, for the six months ended June 30, 2014 and 2013, respectively. |
Subsequent_Events_Exelon_PECO_
Subsequent Events (Exelon, PECO and BGE) | 6 Months Ended |
Jun. 30, 2014 | |
Subsequent Events Disclosure [Line Items] | ' |
Subsequent Events TextBlock (Exelon, PECO and BGE) | ' |
21. Subsequent Events (Exelon, Generation and PECO) | |
Summer storms during July 2014 interrupted electric service delivery in PECO's service territory. Restoration efforts included significant costs associated with employee overtime, support from other utilities and incremental equipment, contracted tree trimming crews and supplies. PECO estimates that restoration efforts will result in $10 million to $20 million of incremental operating and maintenance expense and $10 million to $20 million of incremental capital expenditures for the third quarter of 2014. | |
On July 29, 2014, Generation entered into a Stock Purchase Agreement (the Purchase Agreement) with Integrys Energy Group, Inc. (Integrys). Pursuant to the Purchase Agreement, Integrys agreed to sell its competitive retail electric and natural gas businesses through a sale of all of the stock of its wholly-owned subsidiary, Integrys Energy Services, Inc. (IES), to Generation for an all cash purchase price of $60 million plus adjusted net working capital at the time of the closing. IES's adjusted net working capital balance was approximately $183 million as of May 31, 2014. Pursuant to the Purchase Agreement, Generation has agreed to use its commercially reasonable efforts to replace the guarantees and other credit support currently being provided by Integrys for IES in support of the ongoing competitive retail businesses and to reimburse Integrys for any payments arising pursuant to such arrangements continuing for any post-closing period. The generation and solar asset businesses of IES are excluded from the transaction. | |
The transaction is expected to close in the fourth quarter of 2014 or the first quarter of 2015. The closing of the transaction is subject to certain conditions, included, among others, approval by the FERC and expiration or termination of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976. Either party may terminate the Purchase Agreement if the transaction has not been consummated by the 6 month anniversary of the date of the Purchase Agreement, subject to an extension of up to 180 days, if necessary, to obtain regulatory approval. The Purchase Agreement also includes various representations, warranties, covenants, indemnification and other provisions customary for a transaction of this nature. |
Fair_Value_of_Financial_Assets1
Fair Value of Financial Assets and Liabilities (Policies) | 6 Months Ended |
Jun. 30, 2014 | |
Fair Value Of Financial Liabilities Recorded At The Carrying Amount [Abstract] | ' |
Cash Equivalents Valuation Techniques Used to Determine Fair Value | ' |
Cash Equivalents (Exelon, Generation, ComEd, PECO and BGE). The Registrants' cash equivalents include investments with maturities of three months or less when purchased. The cash equivalents shown in the fair value tables are comprised of investments in mutual and money market funds. The fair values of the shares of these funds are based on observable market prices and, therefore, have been categorized in Level 1 in the fair value hierarchy. | |
Nuclear Decommissioning Trust Fund Investments Valuation Techniques Used to Determine Fair Value | ' |
Nuclear Decommissioning Trust Fund Investments and Pledged Assets for Zion Station Decommissioning (Exelon and Generation). The trust fund investments have been established to satisfy Generation's and CENG's nuclear decommissioning obligations as required by the NRC. The NDT funds hold debt and equity securities directly and indirectly through commingled funds. Generation's and CENG's investment policies place limitations on the types and investment grade ratings of the securities that may be held by the trusts. These policies limit the trust funds' exposures to investments in highly illiquid markets and other alternative investments. Investments with maturities of three months or less when purchased, including certain short-term fixed income securities are considered cash equivalents and included in the recurring fair value measurements hierarchy as Level 1 or Level 2. | |
With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are obtained from direct feeds from market exchanges, which Generation is able to independently corroborate. The fair values of equity securities held directly by the trust funds are based on quoted prices in active markets and are categorized in Level 1. Equity securities held individually are primarily traded on the New York Stock Exchange and NASDAQ-Global Select Market, which contain only actively traded securities due to the volume trading requirements imposed by these exchanges. | |
For fixed income securities, multiple prices from pricing services are obtained whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class or issue for each security. The trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the portfolio managers challenge an assigned price and the trustees determine that another price source is considered to be preferable. Generation has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Generation selectively corroborates the fair values of securities by comparison to other market-based price sources. U.S. Treasury securities are categorized as Level 1 because they trade in a highly liquid and transparent market. The fair values of fixed income securities, excluding U.S. Treasury securities, are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities, adjusted for observable differences and are categorized in Level 2. The fair values of private placement fixed income securities are determined using a third party valuation that contains significant unobservable inputs and are categorized in Level 3. | |
Equity, balanced and fixed income commingled funds and fixed income mutual funds are maintained by investment companies and hold certain investments in accordance with a stated set of fund objectives. The fair values of fixed income commingled and mutual funds held within the trust funds, which generally hold short-term fixed income securities and are not subject to restrictions regarding the purchase or sale of shares, are derived from observable prices. The objectives of the remaining equity commingled funds in which Exelon, Generation and CENG invest primarily seek to track the performance of certain equity indices by purchasing equity securities to replicate the capitalization and characteristics of the indices. Comingled and mutual funds are categorized in Level 2 because the fair value of the funds are based on NAVs per fund share (the unit of account), primarily derived from the quoted prices in active markets on the underlying equity securities. See Note 12 — Nuclear Decommissioning for further discussion on the NDT fund investments. | |
Middle market lending are investments in loans or managed funds which invest in private companies. Generation elected the fair value option for its investments in certain limited partnerships that invest in middle market lending managed funds. The fair value of these loans is determined using a combination of valuation models including cost models, market models, and income models. Investments in middle market lending are categorized as Level 3 because the fair value of these securities is based largely on inputs that are unobservable and utilize complex valuation models. Investments in middle market lending typically cannot be redeemed until maturity of the term loan. | |
As of June 30, 2014, Generation has outstanding commitments to invest in middle market lending, corporate debt securities, private equity investments, and real estate investments of approximately $430 million. These commitments will be funded by Generation's existing nuclear decommissioning trust funds. | |
Rabbi Trust Investments Valuation Techniques Used to Determine Fair Value | ' |
Rabbi Trust Investments (Exelon, Generation, ComEd, PECO and BGE). The Rabbi trusts were established to hold assets related to deferred compensation plans existing for certain active and retired members of Exelon's executive management and directors. The investments in the Rabbi trusts are included in investments in the Registrants' Consolidated Balance Sheets and consist primarily of mutual funds. These funds are maintained by investment companies and hold certain investments in accordance with a stated set of fund objectives, which are consistent with Exelon's overall investment strategy. Mutual funds are publicly quoted and have been categorized as Level 1 given the clear observability of the prices. | |
Mark-to-Market Valuation Techniques Used to Determine Fair Value | ' |
Mark-to-Market Derivatives (Exelon, Generation, and ComEd). Derivative contracts are traded in both exchange-based and non-exchange-based markets. Exchange-based derivatives that are valued using unadjusted quoted prices in active markets are categorized in Level 1 in the fair value hierarchy. Certain derivatives' pricing is verified using indicative price quotations available through brokers or over-the-counter, on-line exchanges and are categorized in Level 2. These price quotations reflect the average of the bid-ask, mid-point prices and are obtained from sources that the Registrants believe provide the most liquid market for the commodity. The price quotations are reviewed and corroborated to ensure the prices are observable and representative of an orderly transaction between market participants. This includes consideration of actual transaction volumes, market delivery points, bid-ask spreads and contract duration. The remainder of derivative contracts are valued using the Black model, an industry standard option valuation model. The Black model takes into account inputs such as contract terms, including maturity, and market parameters, including assumptions of the future prices of energy, interest rates, volatility, credit worthiness and credit spread. For derivatives that trade in liquid markets, such as generic forwards, swaps and options, model inputs are generally observable. Such instruments are categorized in Level 2. The Registrants' derivatives are predominately at liquid trading points. For derivatives that trade in less liquid markets with limited pricing information model inputs generally would include both observable and unobservable inputs. These valuations may include an estimated basis adjustment from an illiquid trading point to a liquid trading point for which active price quotations are available. Such instruments are categorized in Level 3. | |
Exelon may utilize fixed-to-floating interest rate swaps, which are typically designated as fair value hedges, as a means to achieve its targeted level of variable-rate debt as a percent of total debt. In addition, the Registrants may utilize interest rate derivatives to lock in interest rate levels in anticipation of future financings. These interest rate derivatives are typically designated as cash flow hedges. Exelon determines the current fair value by calculating the net present value of expected payments and receipts under the swap agreement, based on and discounted by the market's expectation of future interest rates. Additional inputs to the net present value calculation may include the contract terms, counterparty credit risk and other market parameters. As these inputs are based on observable data and valuations of similar instruments, the interest rate swaps are categorized in Level 2 in the fair value hierarchy. See Note 9 — Derivative Financial Instruments for further discussion on mark-to-market derivatives. | |
Mark-to-Market Derivatives (Exelon, Generation, ComEd). For valuations that include both observable and unobservable inputs, if the unobservable input is determined to be significant to the overall inputs, the entire valuation is categorized in Level 3. This includes derivatives valued using indicative price quotations whose contract tenure extends into unobservable periods. In instances where observable data is unavailable, consideration is given to the assumptions that market participants would use in valuing the asset or liability. This includes assumptions about market risks such as liquidity, volatility and contract duration. Such instruments are categorized in Level 3 as the model inputs generally are not observable. Exelon's RMC approves risk management policies and objectives for risk assessment, control and valuation, counterparty credit approval, and the monitoring and reporting of risk exposures. The RMC is chaired by the chief risk officer and includes the chief financial officer, corporate controller, general counsel, treasurer, vice president of strategy, vice president of audit services and officers representing Exelon's business units. The RMC reports to the Exelon Board of Directors on the scope of the risk management activities and is responsible for approving all valuation procedures at Exelon. Forward price curves for the power market utilized by the front office to manage the portfolio, are reviewed and verified by the middle office, and used for financial reporting by the back office. The Registrants consider credit and nonperformance risk in the valuation of derivative contracts categorized in Level 2 and 3, including both historical and current market data in its assessment of credit and nonperformance risk by counterparty. Due to master netting agreements and collateral posting requirements, the impacts of credit and nonperformance risk were not material to the financial statements. | |
Deferred Compensation Obligations Valuation Techniques Used to Determine Fair Value | ' |
Deferred Compensation Obligations (Exelon, Generation, ComEd, PECO and BGE). The Registrants' deferred compensation plans allow participants to defer certain cash compensation into a notional investment account. The Registrants include such plans in other current and noncurrent liabilities in their Consolidated Balance Sheets. The value of the Registrants' deferred compensation obligations is based on the market value of the participants' notional investment accounts. The notional investments are comprised primarily of mutual funds, which are based on observable market prices. However, since the deferred compensation obligations themselves are not exchanged in an active market, they are categorized as Level 2 in the fair value hierarchy. |
Variable_Interest_Entities_Tab
Variable Interest Entities (Tables) | 6 Months Ended | ||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||
Variable Interest Entity [Line Items] | ' | ||||||||||||||||||
Schedule of Variable Interest Entities [Table Text Block] | ' | ||||||||||||||||||
30-Jun-14 | 31-Dec-13 | ||||||||||||||||||
Exelon (a) (b) | Generation (b) | BGE | Exelon (a) | Generation | BGE | ||||||||||||||
Current assets | $ | 991 | $ | 956 | $ | 28 | $ | 484 | $ | 446 | $ | 28 | |||||||
Noncurrent assets | 7,426 | 7,407 | 3 | 1,905 | 1,884 | 3 | |||||||||||||
Total assets | $ | 8,417 | $ | 8,363 | $ | 31 | $ | 2,389 | $ | 2,330 | $ | 31 | |||||||
Current liabilities | $ | 815 | $ | 732 | $ | 76 | $ | 566 | $ | 481 | $ | 74 | |||||||
Noncurrent liabilities | 2,911 | 2,738 | 158 | 774 | 562 | 195 | |||||||||||||
Total liabilities | $ | 3,726 | $ | 3,470 | $ | 234 | $ | 1,340 | $ | 1,043 | $ | 269 | |||||||
30-Jun-14 | 31-Dec-13 | ||||||||||||||||||
Exelon | Generation | BGE | Exelon | Generation | BGE | ||||||||||||||
Cash and cash equivalents | $ | 126 | $ | 126 | $ | - | $ | 62 | $ | 62 | $ | - | |||||||
Restricted cash | 75 | 47 | 28 | 80 | 52 | 28 | |||||||||||||
Accounts receivable, net | |||||||||||||||||||
Customer | 296 | 296 | - | 260 | 260 | - | |||||||||||||
Other | 133 | 133 | - | - | - | - | |||||||||||||
Inventory | |||||||||||||||||||
Fossil fuel | 103 | 103 | - | 2 | 2 | - | |||||||||||||
Materials and supplies | 165 | 165 | - | - | - | - | |||||||||||||
Other current assets | 61 | 54 | - | 53 | 42 | - | |||||||||||||
Total current assets | 959 | 924 | 28 | 457 | 418 | 28 | |||||||||||||
Property, plant and equipment, net | 4,603 | 4,603 | - | 1,171 | 1,171 | - | |||||||||||||
Nuclear decommissioning trust funds | 2,030 | 2,030 | - | - | - | - | |||||||||||||
Goodwill | 48 | 48 | - | - | - | - | |||||||||||||
Other noncurrent assets | 125 | 106 | 3 | 127 | 106 | 3 | |||||||||||||
Total noncurrent assets | 6,806 | 6,787 | 3 | 1,298 | 1,277 | 3 | |||||||||||||
Total assets | $ | 7,765 | $ | 7,711 | $ | 31 | $ | 1,755 | $ | 1,695 | $ | 31 | |||||||
Short-term borrowings | $ | 40 | $ | 40 | $ | - | $ | - | $ | - | $ | - | |||||||
Long-term debt due within one year | 84 | 5 | 72 | 85 | 5 | 70 | |||||||||||||
Accounts payable | 243 | 243 | - | 170 | 170 | - | |||||||||||||
Accrued expenses | 89 | 86 | 4 | 26 | 22 | 4 | |||||||||||||
Mark-to-market derivative liabilities | 24 | 24 | - | 29 | 29 | - | |||||||||||||
Unamortized energy contracts | 12 | 12 | - | 5 | 5 | - | |||||||||||||
Other current liabilities | 165 | 165 | - | 5 | 5 | - | |||||||||||||
Total current liabilities | 657 | 575 | 76 | 320 | 236 | 74 | |||||||||||||
Long-term debt | 258 | 84 | 158 | 298 | 86 | 195 | |||||||||||||
Asset retirement obligations | 1,731 | 1,731 | - | - | - | - | |||||||||||||
Pension obligation (a) | 133 | 133 | - | - | - | - | |||||||||||||
Non-pension postretirement benefit | 136 | 136 | - | - | - | - | |||||||||||||
Unamortized energy contracts | 18 | 18 | - | 12 | 12 | - | |||||||||||||
Other noncurrent liabilities | 178 | 178 | - | 28 | 28 | - | |||||||||||||
Noncurrent liabilities | 2,454 | 2,280 | 158 | 338 | 126 | 195 | |||||||||||||
Total liabilities | $ | 3,111 | $ | 2,855 | $ | 234 | $ | 658 | $ | 362 | $ | 269 | |||||||
Schedule Of Unconsolidated Variable Interest Entities [Text Block] | ' | ||||||||||||||||||
Commercial | Equity | ||||||||||||||||||
Agreement | Investment | ||||||||||||||||||
30-Jun-14 | VIEs | VIEs | Total | ||||||||||||||||
Total assets (a) | $ | 119 | $ | 325 | $ | 444 | |||||||||||||
Total liabilities (a) | 2 | 120 | 122 | ||||||||||||||||
Exelon's ownership interest in VIE (a) | 0 | 63 | 63 | ||||||||||||||||
Other ownership interests in VIE (a) | 117 | 142 | 259 | ||||||||||||||||
Registrants' maximum exposure to loss: | |||||||||||||||||||
Carrying amount of equity method investments | 0 | 73 | 73 | ||||||||||||||||
Contract intangible asset | 9 | 0 | 9 | ||||||||||||||||
Debt and payment guarantees | 0 | 3 | 3 | ||||||||||||||||
Net assets pledged for Zion Station decommissioning (b) | 45 | 0 | 45 | ||||||||||||||||
Commercial | Equity | ||||||||||||||||||
Agreement | Investment | ||||||||||||||||||
31-Dec-13 | VIEs | VIEs | Total | ||||||||||||||||
Total assets (a) | $ | 128 | $ | 332 | $ | 460 | |||||||||||||
Total liabilities (a) | 17 | 123 | 140 | ||||||||||||||||
Exelon's ownership interest in VIE (a) | 0 | 86 | 86 | ||||||||||||||||
Other ownership interests in VIE (a) | 111 | 123 | 234 | ||||||||||||||||
Registrants' maximum exposure to loss: | |||||||||||||||||||
Carrying amount of equity method investments | 7 | 67 | 74 | ||||||||||||||||
Contract intangible asset | 9 | 0 | 9 | ||||||||||||||||
Debt and payment guarantees | 0 | 5 | 5 | ||||||||||||||||
Net assets pledged for Zion Station decommissioning (b) | 44 | 0 | 44 | ||||||||||||||||
These items represent amounts on the unconsolidated VIE balance sheets, not on Exelon's or Generation's Consolidated Balance Sheets. These items are included to provide information regarding the relative size of the unconsolidated VIEs. | |||||||||||||||||||
These items represent amounts on Exelon's and Generation's Consolidated Balance Sheets related to the asset sale agreement with ZionSolutions, LLC. The net assets pledged for Zion Station decommissioning includes gross pledged assets of $402 million and $458 million as of June 30, 2014 and December 31, 2013, respectively; offset by payables to ZionSolutions LLC of $357 million and $414 million as of June 30, 2014 and December 31, 2013, respectively. These items are included to provide information regarding the relative size of the ZionSolutions LLC unconsolidated VIE. | |||||||||||||||||||
Merger_and_Acquisitions_Tables
Merger and Acquisitions (Tables) | 6 Months Ended | ||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||
Business Acquisition [Line Items] | ' | ||||||||||||||||
Schedule of Restructuring and Related Costs [Text Block] | ' | ||||||||||||||||
Three Months Ended June 30, 2014 | |||||||||||||||||
Severance Benefits | Exelon | Generation | |||||||||||||||
Severance charges (a) | $ | 1 | $ | 1 | |||||||||||||
Total severance benefits | $ | 1 | $ | 1 | |||||||||||||
Six Months Ended June 30, 2014 | |||||||||||||||||
Severance Benefits | Exelon | Generation | |||||||||||||||
Severance charges (a) | $ | 2 | $ | 2 | |||||||||||||
Total severance benefits | $ | 2 | $ | 2 | |||||||||||||
Schedule Of Severance Costs [TableTextBlock] | ' | ||||||||||||||||
Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Three Months Ending | |||||||||||||||||
30-Jun-14 | $ | 4 | $ | 2 | $ | 0 | $ | 0 | $ | 0 | |||||||
30-Jun-13 | $ | 1 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | |||||||
Six Months Ending | |||||||||||||||||
30-Jun-14 | $ | 6 | $ | 4 | $ | 0 | $ | 0 | $ | 0 | |||||||
30-Jun-13 | $ | 2 | $ | 1 | $ | 1 | $ | 0 | $ | 0 |
Regulatory_Matters_Tables
Regulatory Matters (Tables) | 6 Months Ended | ||||||||||||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||||||||||||
Regulatory Matters [Line Items] | ' | ||||||||||||||||||||||||||||
Regulatory assets and liabilities | ' | ||||||||||||||||||||||||||||
30-Jun-14 | Exelon | ComEd | PECO | BGE | |||||||||||||||||||||||||
Regulatory assets | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | |||||||||||||||||||||
Pension and other postretirement | |||||||||||||||||||||||||||||
benefits | $ | 208 | $ | 2,510 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | |||||||||||||
Deferred income taxes | 13 | 1,495 | 1 | 68 | 0 | 1,358 | 12 | 69 | |||||||||||||||||||||
AMI programs | 7 | 222 | 7 | 56 | 0 | 72 | 0 | 94 | |||||||||||||||||||||
Under-recovered distribution service | |||||||||||||||||||||||||||||
costs | 219 | 220 | 219 | 220 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Debt costs | 10 | 51 | 8 | 49 | 2 | 2 | 1 | 8 | |||||||||||||||||||||
Fair value of BGE long-term debt (a) | 7 | 198 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Fair value of BGE supply contract (b) | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Severance | 4 | 11 | 0 | 0 | 0 | 0 | 4 | 11 | |||||||||||||||||||||
Asset retirement obligations | 1 | 110 | 1 | 73 | 0 | 26 | 0 | 11 | |||||||||||||||||||||
MGP remediation costs | 40 | 196 | 33 | 165 | 6 | 30 | 1 | 1 | |||||||||||||||||||||
RTO start-up costs | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Under-recovered uncollectible | |||||||||||||||||||||||||||||
accounts | 0 | 70 | 0 | 70 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Renewable energy | 13 | 121 | 13 | 121 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Energy and transmission programs | 17 | 4 | 12 | 0 | 0 | 0 | 5 | (f) | 4 | ||||||||||||||||||||
Deferred storm costs | 3 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | |||||||||||||||||||||
Electric generation-related | |||||||||||||||||||||||||||||
regulatory asset | 13 | 24 | 0 | 0 | 0 | 0 | 13 | 24 | |||||||||||||||||||||
Rate stabilization deferral | 73 | 119 | 0 | 0 | 0 | 0 | 73 | 119 | |||||||||||||||||||||
Energy efficiency and demand | |||||||||||||||||||||||||||||
response programs | 63 | 148 | 0 | 0 | 0 | 0 | 63 | 148 | |||||||||||||||||||||
Merger integration costs | 2 | 7 | 0 | 0 | 0 | 0 | 2 | 7 | |||||||||||||||||||||
Conservation voltage reduction | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | |||||||||||||||||||||
Other | 32 | 37 | 9 | 28 | 21 | 7 | 1 | 1 | |||||||||||||||||||||
Total regulatory assets | $ | 732 | $ | 5,545 | $ | 304 | $ | 850 | $ | 29 | $ | 1,495 | $ | 178 | $ | 499 | |||||||||||||
30-Jun-14 | Exelon | ComEd | PECO | BGE | |||||||||||||||||||||||||
Regulatory liabilities | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | |||||||||||||||||||||
Other postretirement benefits | $ | 53 | $ | 111 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | |||||||||||||
Nuclear decommissioning | 0 | 2,917 | 0 | 2,427 | 0 | 490 | 0 | 0 | |||||||||||||||||||||
Removal costs | 107 | 1,449 | 83 | 1,248 | 0 | 0 | 24 | 201 | |||||||||||||||||||||
Energy efficiency and demand | |||||||||||||||||||||||||||||
response programs | 14 | 2 | 14 | 0 | 0 | 2 | 0 | 0 | |||||||||||||||||||||
DLC Program Costs | 1 | 9 | 0 | 0 | 1 | 9 | 0 | 0 | |||||||||||||||||||||
Energy efficiency Phase 2 | 0 | 32 | 0 | 0 | 0 | 32 | 0 | 0 | |||||||||||||||||||||
Electric distribution tax repairs | 20 | 104 | 0 | 0 | 20 | 104 | 0 | 0 | |||||||||||||||||||||
Gas distribution tax repairs | 8 | 34 | 0 | 0 | 8 | 34 | 0 | 0 | |||||||||||||||||||||
Energy and transmission programs | 89 | 11 | 19 | 11 | 52 | (c) | 0 | 18 | (f) | 0 | |||||||||||||||||||
Over-recovered gas and electric | |||||||||||||||||||||||||||||
universal service fund costs | 5 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | |||||||||||||||||||||
Revenue subject to refund (d) | 47 | 0 | 47 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Over-recovered gas and electric | |||||||||||||||||||||||||||||
revenue decoupling (e) | 21 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | |||||||||||||||||||||
Other | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | |||||||||||||||||||||
Total regulatory liabilities | $ | 368 | $ | 4,670 | $ | 164 | $ | 3,686 | $ | 88 | $ | 671 | $ | 63 | $ | 202 | |||||||||||||
31-Dec-13 | Exelon | ComEd | PECO | BGE | |||||||||||||||||||||||||
Regulatory assets | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | |||||||||||||||||||||
Pension and other postretirement | |||||||||||||||||||||||||||||
benefits | $ | 221 | $ | 2,794 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | |||||||||||||
Deferred income taxes | 10 | 1,459 | 2 | 65 | 0 | 1,317 | 8 | 77 | |||||||||||||||||||||
AMI programs | 5 | 159 | 5 | 35 | 0 | 58 | 0 | 66 | |||||||||||||||||||||
AMI meter events | 0 | 5 | 0 | 0 | 0 | 5 | 0 | 0 | |||||||||||||||||||||
Under-recovered distribution service | |||||||||||||||||||||||||||||
costs | 178 | 285 | 178 | 285 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Debt costs | 12 | 56 | 9 | 53 | 3 | 3 | 1 | 8 | |||||||||||||||||||||
Fair value of BGE long-term debt (a) | 0 | 219 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Fair value of BGE supply contract (b) | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Severance | 16 | 12 | 12 | 0 | 0 | 0 | 4 | 12 | |||||||||||||||||||||
Asset retirement obligations | 1 | 102 | 1 | 67 | 0 | 25 | 0 | 10 | |||||||||||||||||||||
MGP remediation costs | 40 | 212 | 33 | 178 | 6 | 33 | 1 | 1 | |||||||||||||||||||||
RTO start-up costs | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Under-recovered uncollectible | |||||||||||||||||||||||||||||
accounts | 0 | 48 | 0 | 48 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Renewable energy | 17 | 176 | 17 | 176 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Energy and transmission programs | 53 | 0 | 52 | 0 | 0 | 0 | 1 | (f) | 0 | ||||||||||||||||||||
Deferred storm costs | 3 | 3 | 0 | 0 | 0 | 0 | 3 | 3 | |||||||||||||||||||||
Electric generation-related | |||||||||||||||||||||||||||||
regulatory asset | 13 | 30 | 0 | 0 | 0 | 0 | 13 | 30 | |||||||||||||||||||||
Rate stabilization deferral | 71 | 154 | 0 | 0 | 0 | 0 | 71 | 154 | |||||||||||||||||||||
Energy efficiency and demand | |||||||||||||||||||||||||||||
response programs | 73 | 148 | 0 | 0 | 0 | 0 | 73 | 148 | |||||||||||||||||||||
Merger integration costs | 2 | 9 | 0 | 0 | 0 | 0 | 2 | 9 | |||||||||||||||||||||
Other | 31 | 39 | 18 | 26 | 8 | 7 | 4 | 6 | |||||||||||||||||||||
Total regulatory assets | $ | 760 | $ | 5,910 | $ | 329 | $ | 933 | $ | 17 | $ | 1,448 | $ | 181 | $ | 524 | |||||||||||||
31-Dec-13 | Exelon | ComEd | PECO | BGE | |||||||||||||||||||||||||
Regulatory liabilities | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | Current | Noncurrent | |||||||||||||||||||||
Other postretirement benefits | $ | 2 | $ | 43 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | $ | 0 | |||||||||||||
Nuclear decommissioning | 0 | 2,740 | 0 | 2,293 | 0 | 447 | 0 | 0 | |||||||||||||||||||||
Removal costs | 99 | 1,423 | 78 | 1,219 | 0 | 0 | 21 | 204 | |||||||||||||||||||||
Energy efficiency and demand | |||||||||||||||||||||||||||||
response programs | 53 | 0 | 45 | 0 | 8 | 0 | 0 | 0 | |||||||||||||||||||||
DLC Program Costs | 1 | 10 | 0 | 0 | 1 | 10 | 0 | 0 | |||||||||||||||||||||
Energy efficiency phase II | 0 | 21 | 0 | 0 | 0 | 21 | 0 | 0 | |||||||||||||||||||||
Electric distribution tax repairs | 20 | 114 | 0 | 0 | 20 | 114 | 0 | 0 | |||||||||||||||||||||
Gas distribution tax repairs | 8 | 37 | 0 | 0 | 8 | 37 | |||||||||||||||||||||||
Energy and transmission programs | 78 | 0 | 9 | 0 | 58 | (c) | 0 | 11 | (f) | 0 | |||||||||||||||||||
Over-recovered gas and electric | |||||||||||||||||||||||||||||
universal service fund costs | 8 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | |||||||||||||||||||||
Revenue subject to refund (d) | 38 | 0 | 38 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
Over-recovered electric and gas | |||||||||||||||||||||||||||||
revenue decoupling (e) | 16 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | |||||||||||||||||||||
Other | 4 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | |||||||||||||||||||||
Total regulatory liabilities | $ | 327 | $ | 4,388 | $ | 170 | $ | 3,512 | $ | 106 | $ | 629 | $ | 48 | $ | 204 | |||||||||||||
Represents the regulatory asset recorded at Exelon Corporate for the difference in the fair value of the long-term debt of BGE as of the merger date. The asset is amortized over the life of the underlying debt. See Note 10 – Debt and Credit Agreements for additional information. | |||||||||||||||||||||||||||||
Represents the regulatory asset recorded at Exelon Corporate representing the fair value of BGE's supply contracts as of the close of the merger date. BGE is allowed full recovery of the costs of its electric and gas supply contracts through approved, regulated rates. The asset is amortized over a period of approximately 3 years. | |||||||||||||||||||||||||||||
Includes $26 million related to the DSP program, $19 million related to the over-recovered natural gas costs under the PGC and $7 million related to over-recovered electric transmission costs as of June 30, 2014. As of December 31, 2013, includes $34 million related to the DSP program, $8 million related to the over-recovered electric transmission costs and $16 million related to the over-recovered natural gas costs under the PGC. | |||||||||||||||||||||||||||||
Primarily represents the regulatory liability for revenue subject to refund recorded pursuant to the ICC's order in the 2007 Rate Case. See Note 3 – Regulatory Matters of the Exelon 2013 Form 10-K for further information. | |||||||||||||||||||||||||||||
Represents the electric and gas distribution costs recoverable from customers under BGE's decoupling mechanism. As of June 30, 2014, BGE had a regulatory liability of $3 million related to over-recovered electric revenue decoupling and $18 million related to over-recovered natural gas revenue decoupling. As of December 31, 2013, BGE had a regulatory liability of $7 million related to over-recovered electric revenue decoupling and $9 million related to over-recovered natural gas revenue decoupling. | |||||||||||||||||||||||||||||
Relates to $1 million of under-recovered electric supply costs, $4 million associated with the transmission formula rate and $18 million of over-recovered natural gas supply costs as of June 30, 2014. As of December 31, 2013, includes $1 million of under-recovered electric supply costs, $0 million associated with the transmission formula rate and $11 million of over-recovered natural gas supply costs. | |||||||||||||||||||||||||||||
As of June 30, 2014 | Exelon | ComEd | PECO | BGE | |||||||||||||||||||||||||
Purchased receivables (a) | $ | 270 | $ | 116 | $ | 75 | $ | 79 | |||||||||||||||||||||
Allowance for uncollectible accounts (b) | -32 | -17 | -8 | -7 | |||||||||||||||||||||||||
Purchased receivables, net | $ | 238 | $ | 99 | $ | 67 | $ | 72 | |||||||||||||||||||||
As of December 31, 2013 | Exelon | ComEd | PECO | BGE | |||||||||||||||||||||||||
Purchased receivables (a) | $ | 263 | $ | 105 | $ | 72 | $ | 86 | |||||||||||||||||||||
Allowance for uncollectible accounts (b) | -30 | -16 | -7 | -7 | |||||||||||||||||||||||||
Purchased receivables, net | $ | 233 | $ | 89 | $ | 65 | $ | 79 | |||||||||||||||||||||
__________ | |||||||||||||||||||||||||||||
(a) PECO's gas POR program became effective on January 1, 2012 and includes a 1% discount on purchased receivables in order to recover the implementation costs of the program. If the costs are not fully recovered when PECO files its next gas distribution rate case, PECO will propose a mechanism to recover the remaining implementation costs as a distribution charge to low volume transportation customers or apply future discounts on purchased receivables from natural gas suppliers serving those customers. | |||||||||||||||||||||||||||||
(b) For ComEd and BGE, reflects the incremental allowance for uncollectible accounts recorded, which is in addition to the purchase discount. For ComEd, the incremental uncollectible accounts expense is recovered through its Purchase of Receivables with Consolidated Billing (PORCB) tariff. | |||||||||||||||||||||||||||||
Investment_in_Constellation_En1
Investment in Constellation Energy Nuclear Group, LLC (Tables) | 6 Months Ended | ||||||
Jun. 30, 2014 | |||||||
Schedule of Equity Method Investments [Line Items] | ' | ||||||
Schedule of total equity in earnings of investment in CENG | ' | ||||||
Three Months | Three Months | ||||||
Ended March 31, | Ended March 31, | ||||||
2014 | 2013 | ||||||
Equity investment income | $ | -2 | $ | 15 | |||
Amortization of basis difference in CENG | -17 | -27 | |||||
Total equity in earnings - CENG | $ | -19 | $ | -12 | |||
Exelon Generation Co L L C [Member] | ' | ||||||
Schedule of Equity Method Investments [Line Items] | ' | ||||||
Schedule of total equity in earnings of investment in CENG | ' | ||||||
Three Months | Three Months | ||||||
Ended March 31, | Ended March 31, | ||||||
2014 | 2013 | ||||||
Equity investment income | $ | -2 | $ | 15 | |||
Amortization of basis difference in CENG | -17 | -27 | |||||
Total equity in earnings - CENG | $ | -19 | $ | -12 |
Recovered_Sheet1
Impairment of Long-Lived assets (Tables) | 6 Months Ended | |||||
Jun. 30, 2014 | ||||||
Impaired Long-Lived Assets Held and Used [Line Items] | ' | |||||
Schedule of Capital Leased Assets [Table Text Block] | ' | |||||
30-Jun-14 | 31-Dec-13 | |||||
Estimated residual value of leased assets | $ | 685 | $ | 1,465 | ||
Less: unearned income | 332 | 767 | ||||
Net investment in long-term leases | $ | 353 | $ | 698 |
Fair_Value_of_Financial_Assets2
Fair Value of Financial Assets and Liabilities (Tables) | 6 Months Ended | ||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||
Fair Value Tables [Line Items] | ' | ||||||||||||||||||
Fair value of financial liabilities recorded at the carrying amount | ' | ||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 624 | $ | 3 | $ | 621 | $ | 0 | $ | 624 | |||||||||
Long-term debt (including amounts due within one year) | 20,180 | 1,150 | 19,373 | 1,135 | 21,658 | ||||||||||||||
Long-term debt to financing trusts | 648 | 0 | 0 | 668 | 668 | ||||||||||||||
SNF obligation | 1,021 | 0 | 814 | 0 | 814 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 344 | $ | 3 | $ | 341 | $ | 0 | $ | 344 | |||||||||
Long-term debt (including amounts due within one year) | 19,132 | 0 | 18,672 | 1,079 | 19,751 | ||||||||||||||
Long-term debt to financing trusts | 648 | 0 | 0 | 631 | 631 | ||||||||||||||
SNF obligation | 1,021 | 0 | 790 | 0 | 790 | ||||||||||||||
Assets and liabilities measured and recorded at fair value on recurring basis | ' | ||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 1,034 | $ | 0 | $ | 0 | $ | 1,034 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 151 | 66 | 0 | 217 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 2,572 | 0 | 0 | 2,572 | |||||||||||||||
Exchange traded funds | 164 | 0 | 0 | 164 | |||||||||||||||
Commingled funds | 0 | 2,529 | 0 | 2,529 | |||||||||||||||
Equity funds subtotal | 2,736 | 2,529 | 0 | 5,265 | |||||||||||||||
Balanced funds - commingled funds | 0 | 273 | 0 | 273 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 990 | 0 | 0 | 990 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 416 | 0 | 416 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 114 | 0 | 114 | |||||||||||||||
Corporate debt securities | 0 | 2,059 | 181 | 2,240 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 84 | 0 | 84 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 43 | 0 | 43 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 3 | 0 | 3 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Commingled funds | 0 | 325 | 0 | 325 | |||||||||||||||
Fixed income subtotal | 990 | 3,062 | 181 | 4,233 | |||||||||||||||
Middle market lending | 0 | 0 | 376 | 376 | |||||||||||||||
Private Equity | 0 | 0 | 35 | 35 | |||||||||||||||
Other debt obligations | 0 | 24 | 0 | 24 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,877 | 5,954 | 592 | 10,423 | |||||||||||||||
Pledged assets for Zion Station decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 45 | 0 | 45 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 4 | 2 | 0 | 6 | |||||||||||||||
Equity funds subtotal | 4 | 2 | 0 | 6 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 12 | 3 | 0 | 15 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 19 | 0 | 19 | |||||||||||||||
Corporate debt securities | 0 | 172 | 0 | 172 | |||||||||||||||
Commingled funds | 0 | 5 | 0 | 5 | |||||||||||||||
Fixed income subtotal | 12 | 199 | 0 | 211 | |||||||||||||||
Middle market lending | 0 | 0 | 133 | 133 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 16 | 246 | 133 | 395 | |||||||||||||||
Rabbi trust investments(e) | |||||||||||||||||||
Cash equivalents | 2 | 0 | 0 | 2 | |||||||||||||||
Mutual funds(d) | 43 | 0 | 0 | 43 | |||||||||||||||
Rabbi trust investments subtotal | 45 | 0 | 0 | 45 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 434 | 2,969 | 1,413 | 4,816 | |||||||||||||||
Proprietary trading | 178 | 712 | 184 | 1,074 | |||||||||||||||
Effect of netting and allocation of collateral(f) | -569 | -3,119 | -1,127 | -4,815 | |||||||||||||||
Commodity derivative assets subtotal | 43 | 562 | 470 | 1,075 | |||||||||||||||
Interest rate and foreign currency derivative assets | 24 | 40 | 0 | 64 | |||||||||||||||
Effect of netting and allocation of collateral | -21 | -7 | 0 | -28 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 3 | 33 | 0 | 36 | |||||||||||||||
Other investments | 13 | 0 | 10 | 23 | |||||||||||||||
Total assets | 5,031 | 6,795 | 1,205 | 13,031 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -434 | -2,803 | -1,465 | -4,702 | |||||||||||||||
Proprietary trading | -182 | -707 | -176 | -1,065 | |||||||||||||||
Effect of netting and allocation of collateral(f) | 618 | 3,408 | 1,279 | 5,305 | |||||||||||||||
Commodity derivative liabilities subtotal | 2 | -102 | -362 | -462 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | -24 | -34 | 0 | -58 | |||||||||||||||
Effect of netting and allocation of collateral | 24 | 6 | 0 | 30 | |||||||||||||||
Interest rate and foreign currency derivative liabilities subtotal | 0 | -28 | 0 | -28 | |||||||||||||||
Deferred compensation obligation | 0 | -104 | 0 | -104 | |||||||||||||||
Total liabilities | 2 | -234 | -362 | -594 | |||||||||||||||
Total net assets | $ | 5,033 | $ | 6,561 | $ | 843 | $ | 12,437 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 1,230 | $ | 0 | $ | 0 | $ | 1,230 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 459 | 0 | 0 | 459 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 1,776 | 0 | 0 | 1,776 | |||||||||||||||
Exchange traded funds | 115 | 0 | 0 | 115 | |||||||||||||||
Commingled funds | 0 | 2,271 | 0 | 2,271 | |||||||||||||||
Equity funds subtotal | 1,891 | 2,271 | 0 | 4,162 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 882 | 0 | 0 | 882 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 294 | 0 | 294 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 87 | 0 | 87 | |||||||||||||||
Corporate debt securities | 0 | 1,753 | 31 | 1,784 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 10 | 0 | 10 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 40 | 0 | 40 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 7 | 0 | 7 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Fixed income subtotal | 882 | 2,209 | 31 | 3,122 | |||||||||||||||
Middle market lending | 0 | 0 | 314 | 314 | |||||||||||||||
Private Equity | 0 | 0 | 5 | 5 | |||||||||||||||
Other debt obligations | 0 | 14 | 0 | 14 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,232 | 4,494 | 350 | 8,076 | |||||||||||||||
Pledged assets for Zion decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 26 | 0 | 26 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 16 | 0 | 0 | 16 | |||||||||||||||
Equity funds subtotal | 16 | 0 | 0 | 16 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other | |||||||||||||||||||
U.S. government corporations and agencies | 45 | 4 | 0 | 49 | |||||||||||||||
Debt securities issued by states of the United States | |||||||||||||||||||
and political subdivisions of the states | 0 | 20 | 0 | 20 | |||||||||||||||
Corporate debt securities | 0 | 227 | 0 | 227 | |||||||||||||||
Fixed income subtotal | 45 | 251 | 0 | 296 | |||||||||||||||
Middle market lending | 0 | 0 | 112 | 112 | |||||||||||||||
Other debt obligations | 0 | 1 | 0 | 1 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 61 | 278 | 112 | 451 | |||||||||||||||
Rabbi trust investments(e) | |||||||||||||||||||
Cash equivalents | 2 | 0 | 0 | 2 | |||||||||||||||
Mutual funds(d) | 54 | 0 | 0 | 54 | |||||||||||||||
Rabbi trust investments subtotal | 56 | 0 | 0 | 56 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 493 | 2,582 | 885 | 3,960 | |||||||||||||||
Proprietary trading | 324 | 1,315 | 122 | 1,761 | |||||||||||||||
Effect of netting and allocation of collateral(f) | -863 | -3,131 | -430 | -4,424 | |||||||||||||||
Commodity derivative assets subtotal | -46 | 766 | 577 | 1,297 | |||||||||||||||
Interest rate and foreign currency derivative assets | 30 | 39 | 0 | 69 | |||||||||||||||
Effect of netting and allocation of collateral | -30 | -2 | 0 | -32 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 0 | 37 | 0 | 37 | |||||||||||||||
Other Investments | 0 | 0 | 15 | 15 | |||||||||||||||
Total assets | 4,533 | 5,575 | 1,054 | 11,162 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -540 | -1,890 | -590 | -3,020 | |||||||||||||||
Proprietary trading | -328 | -1,256 | -119 | -1,703 | |||||||||||||||
Effect of netting and allocation of collateral(f) | 869 | 3,007 | 404 | 4,280 | |||||||||||||||
Commodity derivative liabilities subtotal | 1 | -139 | -305 | -443 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | -31 | -17 | 0 | -48 | |||||||||||||||
Effect of netting and allocation of collateral | 31 | 1 | 0 | 32 | |||||||||||||||
Interest rate and foreign currency derivative liabilities subtotal | 0 | -16 | 0 | -16 | |||||||||||||||
Deferred compensation obligation | 0 | -114 | 0 | -114 | |||||||||||||||
Total liabilities | 1 | -269 | -305 | -573 | |||||||||||||||
Total net assets | $ | 4,534 | $ | 5,306 | $ | 749 | $ | 10,589 | |||||||||||
(a) Excludes certain cash equivalents considered to be held-to-maturity and not reported at fair value. | |||||||||||||||||||
(b) Excludes net assets (liabilities) of $14 million and $(5) million at June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(c) Excludes net assets of $7 million at both June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(d) The mutual funds held by the Rabbi trusts include $42 million related to deferred compensation and $1 million related to Supplemental Executive Retirement Plan at June 30, 2014, and $53 million related to deferred compensation and $1 million related to Supplemental Executive Retirement Plan at December 31, 2013. | |||||||||||||||||||
(e) Excludes $34 million and $32 million of the cash surrender value of life insurance investments at June 30, 2014 and December 31, 2013, respectively. | |||||||||||||||||||
(f) Includes collateral postings to counterparties. Collateral posted to counterparties, net of collateral paid to counterparties, totaled $49 million, $289 million and $152 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of June 30, 2014. Collateral posted (received) from counterparties, net of collateral paid to counterparties, totaled $6 million, $(124) million and $(26) million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2013. | |||||||||||||||||||
Fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis | ' | ||||||||||||||||||
Three Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2014 | $ | 486 | $ | 137 | $ | 119 | $ | 10 | $ | 752 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | -48 | (a) | 0 | -46 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 8 | 0 | 34 | 0 | 42 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 0 | 34 | 0 | 34 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 109 | 13 | 5 | 0 | 127 | ||||||||||||||
Sales | -1 | -21 | -4 | 0 | -26 | ||||||||||||||
Settlements | -12 | 0 | 0 | 0 | -12 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -4 | 0 | -4 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -28 | 0 | -28 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 108 | $ | 10 | $ | 843 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the three months ended June 30, 2014 | $ | 2 | $ | 0 | $ | 19 | $ | 0 | $ | 21 | |||||||||
Six Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2013 | $ | 350 | $ | 112 | $ | 272 | $ | 15 | $ | 749 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 3 | 0 | -360 | (a) | 0 | -357 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 11 | 0 | 59 | 0 | 70 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 0 | 178 | 0 | 178 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 249 | 42 | 15 | 2 | 308 | ||||||||||||||
Sales | -2 | -25 | -6 | 0 | -33 | ||||||||||||||
Settlements | -19 | 0 | 0 | 0 | -19 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -30 | 0 | -30 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -20 | -7 | -27 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 108 | $ | 10 | $ | 843 | |||||||||
The amount of total losses included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the nine months ended June 30, 2014 | $ | 2 | $ | 0 | $ | -427 | $ | 0 | $ | -425 | |||||||||
(a) Includes the increase for the reclassification of $67 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three months ended June 30, 2014. | |||||||||||||||||||
Three Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2013 | $ | 210 | $ | 104 | $ | 260 | $ | 9 | $ | 583 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 1 | 0 | 158 | (a) | 0 | 159 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 8 | 0 | -10 | (b) | 0 | -2 | |||||||||||||
Included in payable for Zion Station | |||||||||||||||||||
decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Change in collateral | 0 | 0 | 10 | 0 | 10 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 35 | 11 | 13 | 2 | 61 | ||||||||||||||
Sales | -11 | -5 | -4 | 0 | -20 | ||||||||||||||
Settlements | -3 | 0 | 0 | 0 | -3 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 3 | 0 | 3 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 431 | $ | 11 | $ | 793 | |||||||||
The amount of total losses included in income | |||||||||||||||||||
attributed to the change in unrealized losses related to assets and liabilities held for the three months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 187 | $ | 0 | $ | 188 | |||||||||
Six Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2012 | $ | 183 | $ | 89 | $ | 367 | $ | 17 | $ | 656 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | 31 | (a) | 0 | 33 | |||||||||||||
Included in other comprehensive income | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
Included in regulatory assets | 9 | 0 | -18 | (b) | 0 | -9 | |||||||||||||
Included in payable for Zion Station | |||||||||||||||||||
decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Change in collateral | 0 | 0 | 43 | 0 | 43 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 67 | 33 | 8 | (c) | 2 | 110 | |||||||||||||
Sales | -13 | -12 | -8 | -8 | -41 | ||||||||||||||
Settlements | -8 | 0 | 0 | 0 | -8 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 7 | 0 | 7 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 431 | $ | 11 | $ | 793 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the six months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 108 | $ | 0 | $ | 109 | |||||||||
(a) Includes the reclassification of $29 million and $77 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2013, respectively. | |||||||||||||||||||
(b) Excludes decreases in fair value of $3 million and $11 million and realized losses reclassified due to settlements of $82 million and $215 million associated with Generation's financial swap contract with ComEd for the three and six months ended June 30, 2013. All items eliminate upon consolidation in Exelon's Consolidated Financial Statements. | |||||||||||||||||||
Total realized and unrealized gains (losses) included in income for Level 3 assets and liabilities measured at fair value on a recurring basis | ' | ||||||||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains (losses) included in income for the three months ended | |||||||||||||||||||
30-Jun-14 | $ | -62 | $ | 14 | $ | 2 | |||||||||||||
Total gains (losses) included in income for the six months ended | |||||||||||||||||||
30-Jun-14 | $ | -330 | $ | -30 | $ | 3 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the three months ended June 30, 2014 | $ | -10 | $ | 29 | $ | 2 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the six months ended June 30, 2014 | $ | -435 | $ | 8 | $ | 2 | |||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains included in income for the three months | |||||||||||||||||||
ended June 30, 2013 | $ | 137 | $ | 21 | $ | 1 | |||||||||||||
Total gains (losses) included in income for the six months ended | |||||||||||||||||||
30-Jun-13 | $ | -22 | $ | 53 | $ | 2 | |||||||||||||
Change in the unrealized gains relating to assets and | |||||||||||||||||||
liabilities held for the three months ended June 30, 2013 | $ | 156 | $ | 31 | $ | 1 | |||||||||||||
Change in the unrealized gains relating to assets and | |||||||||||||||||||
liabilities held for the six months ended June 30, 2013 | $ | 39 | $ | 69 | $ | 1 | |||||||||||||
(a) Other, net activity consists of realized and unrealized gains (losses) included in income for the NDT funds held by Generation. | |||||||||||||||||||
Fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis, valuation technique | ' | ||||||||||||||||||
Type of trade | Fair Value at June 30, 2014 (c) | Valuation Technique | Unobservable Input | Range | |||||||||||||||
Mark-to-market derivatives – Economic Hedges (Generation) (a) | $ | 82 | Discounted Cash Flow | Forward power price | $ | 16 | - | $ | 170 | (d) | |||||||||
Forward gas price | $ | 2.19 | - | $ | 19.84 | (d) | |||||||||||||
Option Model | Volatility percentage | 8 | % | - | 260 | % | |||||||||||||
Mark-to-market derivatives – Proprietary trading (Generation) (a) | $ | 8 | Discounted Cash Flow | Forward power price | $ | 13 | - | $ | 168 | (d) | |||||||||
Option Model | Volatility percentage | 8 | % | - | 260 | % | |||||||||||||
Mark-to-market derivatives (ComEd) | $ | -134 | Discounted Cash Flow | Forward heat rate (b) | 8 | x | - | 9 | x | ||||||||||
Marketability reserve | 3.5 | % | - | 8 | % | ||||||||||||||
Renewable factor | 86 | % | - | 123 | % | ||||||||||||||
The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions. | |||||||||||||||||||
Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contract's delivery. | |||||||||||||||||||
The fair values do not include cash collateral held on level three positions of $152 million as of June 30, 2014. | |||||||||||||||||||
The upper ends of the ranges are driven by the winter power and gas prices in the New England region. Without the New England region, the upper ends of the ranges for power and gas economic hedges would be approximately $106 and $10.29, respectively, and would be approximately $93 for power proprietary trading. | |||||||||||||||||||
Type of trade | Fair Value at December 31, 2013 (c) | Valuation Technique | Unobservable Input | Range | |||||||||||||||
Mark-to-market derivatives – Economic Hedges (Generation) (a) | $ | 488 | Discounted Cash Flow | Forward power price | $ | 8 | - | $ | 176 | (d) | |||||||||
Forward gas price | $ | 2.98 | - | $ | 16.63 | (d) | |||||||||||||
Option Model | Volatility percentage | 15 | % | - | 142 | % | |||||||||||||
Mark-to-market derivatives – Proprietary trading (Generation) (a) | $ | 3 | Discounted Cash Flow | Forward power price | $ | 10 | - | $ | 176 | (d) | |||||||||
Option Model | Volatility percentage | 14 | % | - | 19 | % | |||||||||||||
Mark-to-market derivatives (ComEd) | $ | -193 | Discounted Cash Flow | Forward heat rate (b) | 8 | x | - | 9 | x | ||||||||||
Marketability reserve | 3.5 | % | - | 8 | % | ||||||||||||||
Renewable factor | 84 | % | - | 128 | % | ||||||||||||||
The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions. | |||||||||||||||||||
Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contract's delivery. | |||||||||||||||||||
The fair values do not include cash collateral held on level three positions of $26 million as of December 31, 2013 | |||||||||||||||||||
The upper ends of the ranges are driven by the winter power and gas prices in the New England region. Without the New England region, the upper ends of the ranges for power and gas would be approximately $100 and $5.70, respectively. | |||||||||||||||||||
Exelon Generation Co L L C [Member] | ' | ||||||||||||||||||
Fair Value Tables [Line Items] | ' | ||||||||||||||||||
Fair value of financial liabilities recorded at the carrying amount | ' | ||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 53 | $ | 0 | $ | 53 | $ | 0 | $ | 53 | |||||||||
Long-term debt (including amounts due within one year) | 7,507 | 0 | 6,881 | 1,135 | 8,016 | ||||||||||||||
SNF obligation | 1,021 | 0 | 814 | 0 | 814 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 22 | $ | 0 | $ | 22 | $ | 0 | $ | 22 | |||||||||
Long-term debt (including amounts due within one year) | 7,729 | 0 | 6,586 | 1,062 | 7,648 | ||||||||||||||
SNF obligation | 1,021 | 0 | 790 | 0 | 790 | ||||||||||||||
Assets and liabilities measured and recorded at fair value on recurring basis | ' | ||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 65 | $ | 0 | $ | 0 | $ | 65 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 151 | 66 | 0 | 217 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 2,572 | 0 | 0 | 2,572 | |||||||||||||||
Exchange traded funds | 164 | 0 | 0 | 164 | |||||||||||||||
Commingled funds | 0 | 2,529 | 0 | 2,529 | |||||||||||||||
Equity funds subtotal | 2,736 | 2,529 | 0 | 5,265 | |||||||||||||||
Balanced funds - commingled funds | 0 | 273 | 0 | 273 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 990 | 0 | 0 | 990 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 416 | 0 | 416 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 114 | 0 | 114 | |||||||||||||||
Corporate debt securities | 0 | 2,059 | 181 | 2,240 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 84 | 0 | 84 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 43 | 0 | 43 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 3 | 0 | 3 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Commingled funds | 0 | 325 | 0 | 325 | |||||||||||||||
Fixed income subtotal | 990 | 3,062 | 181 | 4,233 | |||||||||||||||
Middle market lending | 0 | 0 | 376 | 376 | |||||||||||||||
Private Equity | 0 | 0 | 35 | 35 | |||||||||||||||
Other debt obligations | 0 | 24 | 0 | 24 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,877 | 5,954 | 592 | 10,423 | |||||||||||||||
Pledged assets for Zion Station decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 45 | 0 | 45 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 4 | 2 | 0 | 6 | |||||||||||||||
Equity funds subtotal | 4 | 2 | 0 | 6 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 12 | 3 | 0 | 15 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 19 | 0 | 19 | |||||||||||||||
Corporate debt securities | 0 | 172 | 0 | 172 | |||||||||||||||
Commingled funds | 0 | 5 | 0 | 5 | |||||||||||||||
Fixed income subtotal | 12 | 199 | 0 | 211 | |||||||||||||||
Middle market lending | 0 | 0 | 133 | 133 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 16 | 246 | 133 | 395 | |||||||||||||||
Rabbi trust investments(d) | |||||||||||||||||||
Cash equivalents | 1 | 0 | 0 | 1 | |||||||||||||||
Mutual funds | 14 | 0 | 0 | 14 | |||||||||||||||
Rabbi trust investments subtotal | 15 | 0 | 0 | 15 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 434 | 2,969 | 1,413 | 4,816 | |||||||||||||||
Proprietary trading | 178 | 712 | 184 | 1,074 | |||||||||||||||
Effect of netting and allocation of collateral(e) | -569 | -3,119 | -1,127 | -4,815 | |||||||||||||||
Commodity derivative assets subtotal | 43 | 562 | 470 | 1,075 | |||||||||||||||
Interest rate and foreign currency derivative assets | 24 | 22 | 0 | 46 | |||||||||||||||
Effect of netting and allocation of collateral | -21 | -7 | 0 | -28 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 3 | 15 | 0 | 18 | |||||||||||||||
Other investments | 13 | 0 | 10 | 23 | |||||||||||||||
Total assets | 4,032 | 6,777 | 1,205 | 12,014 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -434 | -2,803 | -1,331 | -4,568 | |||||||||||||||
Proprietary trading | -182 | -707 | -176 | -1,065 | |||||||||||||||
Effect of netting and allocation of collateral(e) | 618 | 3,408 | 1,279 | 5,305 | |||||||||||||||
Commodity derivative liabilities subtotal | 2 | -102 | -228 | -328 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | -24 | -28 | 0 | -52 | |||||||||||||||
Effect of netting and allocation of collateral | 24 | 6 | 0 | 30 | |||||||||||||||
Interest rate and foreign currency derivative liabilities subtotal | 0 | -22 | 0 | -22 | |||||||||||||||
Deferred compensation obligation | 0 | -29 | 0 | -29 | |||||||||||||||
Total liabilities | 2 | -153 | -228 | -379 | |||||||||||||||
Total net assets | $ | 4,034 | $ | 6,624 | $ | 977 | $ | 11,635 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents(a) | $ | 1,006 | $ | 0 | $ | 0 | $ | 1,006 | |||||||||||
Nuclear decommissioning trust fund investments | |||||||||||||||||||
Cash equivalents | 459 | 0 | 0 | 459 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 1,776 | 0 | 0 | 1,776 | |||||||||||||||
Exchange traded funds | 115 | 0 | 0 | 115 | |||||||||||||||
Commingled funds | 0 | 2,271 | 0 | 2,271 | |||||||||||||||
Equity funds subtotal | 1,891 | 2,271 | 0 | 4,162 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 882 | 0 | 0 | 882 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 294 | 0 | 294 | |||||||||||||||
Debt securities issued by foreign governments | 0 | 87 | 0 | 87 | |||||||||||||||
Corporate debt securities | 0 | 1,753 | 31 | 1,784 | |||||||||||||||
Federal agency mortgage-backed securities | 0 | 10 | 0 | 10 | |||||||||||||||
Commercial mortgage-backed securities (non-agency) | 0 | 40 | 0 | 40 | |||||||||||||||
Residential mortgage-backed securities (non-agency) | 0 | 7 | 0 | 7 | |||||||||||||||
Mutual funds | 0 | 18 | 0 | 18 | |||||||||||||||
Fixed income subtotal | 882 | 2,209 | 31 | 3,122 | |||||||||||||||
Middle market lending | 0 | 0 | 314 | 314 | |||||||||||||||
Private Equity | 0 | 0 | 5 | 5 | |||||||||||||||
Other debt obligations | 0 | 14 | 0 | 14 | |||||||||||||||
Nuclear decommissioning trust fund investments subtotal(b) | 3,232 | 4,494 | 350 | 8,076 | |||||||||||||||
Pledged assets for Zion Station decommissioning | |||||||||||||||||||
Cash equivalents | 0 | 26 | 0 | 26 | |||||||||||||||
Equity | |||||||||||||||||||
Individually held | 16 | 0 | 0 | 16 | |||||||||||||||
Equity funds subtotal | 16 | 0 | 0 | 16 | |||||||||||||||
Fixed income | |||||||||||||||||||
Debt securities issued by the U.S. Treasury and other U.S. | |||||||||||||||||||
government corporations and agencies | 45 | 4 | 0 | 49 | |||||||||||||||
Debt securities issued by states of the United States and | |||||||||||||||||||
political subdivisions of the states | 0 | 20 | 0 | 20 | |||||||||||||||
Corporate debt securities | 0 | 227 | 0 | 227 | |||||||||||||||
Fixed income subtotal | 45 | 251 | 0 | 296 | |||||||||||||||
Middle market lending | 0 | 0 | 112 | 112 | |||||||||||||||
Other debt obligations | 0 | 1 | 0 | 1 | |||||||||||||||
Pledged assets for Zion Station decommissioning subtotal(c) | 61 | 278 | 112 | 451 | |||||||||||||||
Rabbi trust investments(d) | |||||||||||||||||||
Mutual funds | 13 | 0 | 0 | 13 | |||||||||||||||
Rabbi trust investments subtotal | 13 | 0 | 0 | 13 | |||||||||||||||
Commodity derivative assets | |||||||||||||||||||
Economic hedges | 493 | 2,582 | 885 | 3,960 | |||||||||||||||
Proprietary trading | 324 | 1,315 | 122 | 1,761 | |||||||||||||||
Effect of netting and allocation of collateral(e) | -863 | -3,131 | -430 | -4,424 | |||||||||||||||
Commodity and foreign currency assets subtotal | -46 | 766 | 577 | 1,297 | |||||||||||||||
Interest rate and foreign currency derivative assets | 30 | 32 | 0 | 62 | |||||||||||||||
Effect of netting and allocation of collateral | -30 | -2 | 0 | -32 | |||||||||||||||
Interest rate and foreign currency derivative assets subtotal | 0 | 30 | 0 | 30 | |||||||||||||||
Other investments | 0 | 0 | 15 | 15 | |||||||||||||||
Total assets | 4,266 | 5,568 | 1,054 | 10,888 | |||||||||||||||
Liabilities | |||||||||||||||||||
Commodity derivative liabilities | |||||||||||||||||||
Economic hedges | -540 | -1,890 | -397 | -2,827 | |||||||||||||||
Proprietary trading | -328 | -1,256 | -119 | -1,703 | |||||||||||||||
Effect of netting and allocation of collateral(e) | 869 | 3,007 | 404 | 4,280 | |||||||||||||||
Commodity derivative liabilities subtotal | 1 | -139 | -112 | -250 | |||||||||||||||
Interest rate derivative liabilities | -31 | -13 | 0 | -44 | |||||||||||||||
Effect of netting and allocation of collateral | 31 | 1 | 0 | 32 | |||||||||||||||
Interest rate and foreign currency derivative liabilities | 0 | -12 | 0 | -12 | |||||||||||||||
Deferred compensation obligation | 0 | -29 | 0 | -29 | |||||||||||||||
Total liabilities | 1 | -180 | -112 | -291 | |||||||||||||||
Total net assets | $ | 4,267 | $ | 5,388 | $ | 942 | $ | 10,597 | |||||||||||
(a) Excludes certain cash equivalents considered to be held-to-maturity and not reported at fair value. | |||||||||||||||||||
(b) Excludes net assets (liabilities) of $14 million and $(5) million at June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(c) Excludes net assets of $7 million at both June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | |||||||||||||||||||
(d) Excludes $10 million of the cash surrender value of life insurance investments at both June 30, 2014 and December 31, 2013. | |||||||||||||||||||
(e) Includes collateral postings to counterparties. Collateral posted to counterparties, net of collateral paid to counterparties, totaled $49 million, $289 million and $152 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of June 30, 2014. Collateral posted (received) from counterparties, net of collateral paid to counterparties, totaled $6 million, $(124) million and $(26) million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2013. | |||||||||||||||||||
Fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis | ' | ||||||||||||||||||
Three Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2014 | $ | 486 | $ | 137 | $ | 287 | $ | 10 | $ | 920 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | -48 | (a) | 0 | -46 | |||||||||||||
Included in noncurrent payables to affiliates | 8 | 0 | 0 | 0 | 8 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 0 | 34 | 0 | 34 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 109 | 13 | 5 | 0 | 127 | ||||||||||||||
Sales | -1 | -21 | -4 | 0 | -26 | ||||||||||||||
Settlements | -12 | 0 | 0 | 0 | -12 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -4 | 0 | -4 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -28 | 0 | -28 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 242 | $ | 10 | $ | 977 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the three months ended June 30, 2014 | $ | 2 | $ | 0 | $ | 19 | $ | 0 | $ | 21 | |||||||||
Six Months Ended June 30, 2014 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2013 | $ | 350 | $ | 112 | $ | 465 | $ | 15 | $ | 942 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 3 | 0 | -360 | (a) | 0 | -357 | |||||||||||||
Included in noncurrent payables to affiliates | 11 | 0 | 0 | 0 | 11 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 4 | 0 | 0 | 4 | ||||||||||||||
Change in collateral | 0 | 178 | 0 | 178 | |||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 249 | 42 | 15 | 2 | 308 | ||||||||||||||
Sales | -2 | -25 | -6 | 0 | -33 | ||||||||||||||
Settlements | -19 | 0 | 0 | 0 | -19 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | -30 | 0 | -30 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | -20 | -7 | -27 | ||||||||||||||
Balance as of June 30, 2014 | $ | 592 | $ | 133 | $ | 242 | $ | 10 | $ | 977 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the six months ended June 30, 2014 | $ | 2 | $ | 0 | $ | -427 | $ | 0 | $ | -425 | |||||||||
(a) Includes an increase for the reclassification of $67 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2014, respectively. | |||||||||||||||||||
Three Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of March 31, 2013 | $ | 210 | $ | 104 | $ | 420 | $ | 9 | $ | 743 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 1 | 0 | 168 | (a)(b) | 0 | 169 | |||||||||||||
Included in other comprehensive income | 0 | 0 | -95 | (b) | 0 | -95 | |||||||||||||
Included in noncurrent payables to affiliates | 8 | 0 | 0 | 0 | 8 | ||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Changes in collateral | 0 | 0 | 10 | 0 | 10 | ||||||||||||||
Purchases, sales, issuances and settlements | |||||||||||||||||||
Purchases | 35 | 11 | 13 | 2 | 61 | ||||||||||||||
Sales | -11 | -5 | -4 | 0 | -20 | ||||||||||||||
Settlements | -3 | 0 | 0 | 0 | -3 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 3 | 0 | 3 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 516 | $ | 11 | $ | 878 | |||||||||
The amount of total losses included in income | |||||||||||||||||||
attributed to the change in unrealized losses related to assets and liabilities held for the three months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 183 | $ | 0 | $ | 184 | |||||||||
Six Months Ended June 30, 2013 | Nuclear Decommissioning Trust Fund Investments | Pledged Assets for Zion Station Decommissioning | Mark-to-Market Derivatives | Other Investments | Total | ||||||||||||||
Balance as of December 31, 2012 | $ | 183 | $ | 89 | $ | 660 | $ | 17 | $ | 949 | |||||||||
Total realized / unrealized gains (losses) | |||||||||||||||||||
Included in net income | 2 | 0 | 24 | (a)(b) | 0 | 26 | |||||||||||||
Included in other comprehensive income | 0 | 0 | -219 | (b) | 0 | -219 | |||||||||||||
Included in noncurrent payables to affiliates | 9 | 0 | 0 | 9 | |||||||||||||||
Included in payable for Zion Station decommissioning | 0 | 1 | 0 | 0 | 1 | ||||||||||||||
Changes in collateral | 0 | 0 | 43 | 0 | 43 | ||||||||||||||
Purchases, sales, issuances and settlements | 0 | ||||||||||||||||||
Purchases | 67 | 33 | 8 | (c) | 2 | 110 | |||||||||||||
Sales | -13 | -12 | -8 | -8 | -41 | ||||||||||||||
Settlements | -8 | 0 | 0 | 0 | -8 | ||||||||||||||
Transfers into Level 3 | 0 | 0 | 7 | 0 | 7 | ||||||||||||||
Transfers out of Level 3 | 0 | 0 | 1 | 0 | 1 | ||||||||||||||
Balance as of June 30, 2013 | $ | 240 | $ | 111 | $ | 516 | $ | 11 | $ | 878 | |||||||||
The amount of total gains included in income | |||||||||||||||||||
attributed to the change in unrealized gains related to assets and liabilities held for the six months ended June 30, 2013 | $ | 1 | $ | 0 | $ | 97 | $ | 0 | $ | 98 | |||||||||
(a) Includes the reclassification of $15 million and $73 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2013, respectively. | |||||||||||||||||||
(b) Includes $3 million of decreases in fair value and $11 million of increases in fair value and realized losses due to settlements of $82 million and $215 million associated with Generation's financial swap contract with ComEd for the three and six months ended June 30, 2013, respectively. This position eliminates upon consolidation in Exelon's Consolidated Financial Statements. | |||||||||||||||||||
(c) Includes $10 million which Generation was paid to enter into out of the money purchase contracts. | |||||||||||||||||||
Total realized and unrealized gains (losses) included in income for Level 3 assets and liabilities measured at fair value on a recurring basis | ' | ||||||||||||||||||
(a) Other, net activity consists of realized and unrealized gains (losses) included in income for the NDT funds held by Generation. | |||||||||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains (losses) included in net income for the three months | $ | -62 | $ | 14 | $ | 2 | |||||||||||||
ended June 30, 2014 | |||||||||||||||||||
Total losses included in net income for the six months | |||||||||||||||||||
ended June 30, 2014 | $ | -330 | $ | -30 | $ | 3 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the three months ended June 30, 2014 | $ | -10 | $ | 29 | $ | 2 | |||||||||||||
Change in the unrealized gains (losses) relating to assets and liabilities | |||||||||||||||||||
held for the six months ended June 30, 2014 | $ | -435 | $ | 8 | $ | 2 | |||||||||||||
Operating Revenue | Purchased Power and Fuel | Other, net (a) | |||||||||||||||||
Total gains included in net income for the three months | $ | 148 | $ | 20 | $ | 1 | |||||||||||||
ended June 30, 2013 | |||||||||||||||||||
Total gains (losses) included in net income for the six months | $ | -28 | $ | 52 | $ | 2 | |||||||||||||
ended June 30, 2013 | |||||||||||||||||||
Change in the unrealized gains relating to assets and | $ | 153 | $ | 30 | $ | 1 | |||||||||||||
liabilities held for the three months ended June 30, 2013 | |||||||||||||||||||
Change in the unrealized gains relating to assets and | $ | 29 | $ | 68 | $ | 1 | |||||||||||||
liabilities held for the nine months ended June 30, 2013 | |||||||||||||||||||
(a) Other, net activity consists of realized and unrealized gains (losses) included in income for the NDT funds held by Generation. | |||||||||||||||||||
Commonwealth Edison Co [Member] | ' | ||||||||||||||||||
Fair Value Tables [Line Items] | ' | ||||||||||||||||||
Fair value of financial liabilities recorded at the carrying amount | ' | ||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 498 | $ | 0 | $ | 498 | $ | 0 | $ | 498 | |||||||||
Long-term debt (including amounts due within one year) | 5,708 | 0 | 6,452 | 0 | 6,452 | ||||||||||||||
Long-term debt to financing trust | 206 | 0 | 0 | 211 | 211 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 184 | $ | 0 | $ | 184 | $ | 0 | $ | 184 | |||||||||
Long-term debt (including amounts due within one year) | 5,675 | 0 | 6,238 | 17 | 6,255 | ||||||||||||||
Long-term debt to financing trust | 206 | 0 | 0 | 202 | 202 | ||||||||||||||
Assets and liabilities measured and recorded at fair value on recurring basis | ' | ||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | $ | 1 | $ | 0 | $ | 0 | $ | 1 | |||||||||||
Rabbi trust investments subtotal | 1 | 0 | 0 | 1 | |||||||||||||||
Total assets | $ | 1 | $ | 0 | $ | 0 | $ | 1 | |||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -8 | 0 | -8 | |||||||||||||||
Mark-to-market derivative liabilities(a) | 0 | 0 | -134 | -134 | |||||||||||||||
Total liabilities | 0 | -8 | -134 | -142 | |||||||||||||||
Total net assets (liabilities) | $ | 1 | $ | -8 | $ | -134 | $ | -141 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | $ | 5 | $ | 0 | $ | 0 | $ | 5 | |||||||||||
Rabbi trust investments subtotal | 5 | 0 | 0 | 5 | |||||||||||||||
Total assets | 5 | 0 | 0 | 5 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -8 | 0 | -8 | |||||||||||||||
Mark-to-market derivative liabilities(a) | 0 | 0 | -193 | -193 | |||||||||||||||
Total liabilities | 0 | -8 | -193 | -201 | |||||||||||||||
Total net assets (liabilities) | $ | 5 | $ | -8 | $ | -193 | $ | -196 | |||||||||||
(a) The Level 3 balance includes the current and noncurrent liability of $13 million and $121 million at June 30, 2014, respectively, and $17 million and $176 million at December 31, 2013, respectively, related to floating-to-fixed energy swap contracts with unaffiliated suppliers. | |||||||||||||||||||
Fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis | ' | ||||||||||||||||||
Three Months Ended June 30, 2014 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of March 31, 2014 | $ | -168 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(a) | 34 | ||||||||||||||||||
Balance as of June 30, 2014 | $ | -134 | |||||||||||||||||
Six Months Ended June 30, 2014 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of December 31, 2013 | $ | -193 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(b) | 59 | ||||||||||||||||||
Balance as of June 30, 2014 | $ | -134 | |||||||||||||||||
Includes $34 million decreases in the fair value partially offset by immaterial realized losses due to settlements recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the three months ended June 30, 2014. | |||||||||||||||||||
Includes $64 million of decreases in the fair value partially offset by realized gains due to settlements of $5 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the six months ended June 30, 2014. | |||||||||||||||||||
Three Months Ended June 30, 2013 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of March 31, 2013 | $ | -160 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(a)(b) | 75 | ||||||||||||||||||
Balance as of June 30, 2013 | $ | -85 | |||||||||||||||||
Six Months Ended June 30, 2013 | Mark-to-Market Derivatives | ||||||||||||||||||
Balance as of December 31, 2012 | $ | -293 | |||||||||||||||||
Total realized / unrealized gains included in regulatory assets(a)(b) | 208 | ||||||||||||||||||
Balance as of June 30, 2013 | $ | -85 | |||||||||||||||||
Total realized and unrealized gains (losses) included in income for Level 3 assets and liabilities measured at fair value on a recurring basis | ' | ||||||||||||||||||
Includes $3 million of increases in fair value and $11 million of decreases in fair value and realized gains due to settlements of $82 million and $215 million of associated with ComEd's financial swap contract with Generation for the three and six months ended June 30, 2013, respectively. All items eliminate upon consolidation in Exelon's Consolidated Financial Statements. | |||||||||||||||||||
Includes $9 million and $20 million of increases in the fair value and realized losses due to settlements of $1 million and $4 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the three and six months ended June 30, 2013, respectively. | |||||||||||||||||||
PECO Energy Co [Member] | ' | ||||||||||||||||||
Fair Value Tables [Line Items] | ' | ||||||||||||||||||
Fair value of financial liabilities recorded at the carrying amount | ' | ||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Long-term debt (including amounts due within one year) | $ | 2,197 | $ | 0 | $ | 2,436 | $ | 0 | $ | 2,436 | |||||||||
Long-term debt to financing trusts | 184 | 0 | 0 | 198 | 198 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Long-term debt (including amounts due within one year) | $ | 2,197 | $ | 0 | $ | 2,358 | $ | 0 | $ | 2,358 | |||||||||
Long-term debt to financing trusts | 184 | 0 | 0 | 180 | 180 | ||||||||||||||
Assets and liabilities measured and recorded at fair value on recurring basis | ' | ||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 50 | $ | 0 | $ | 0 | $ | 50 | |||||||||||
Rabbi trust investments(a) | |||||||||||||||||||
Mutual funds | 9 | 0 | 0 | 9 | |||||||||||||||
Rabbi trust investments subtotal | 9 | 0 | 0 | 9 | |||||||||||||||
Total assets | 59 | 0 | 0 | 59 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -15 | 0 | -15 | |||||||||||||||
Total liabilities | 0 | -15 | 0 | -15 | |||||||||||||||
Total net assets (liabilities) | $ | 59 | $ | -15 | $ | 0 | $ | 44 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 175 | $ | 0 | $ | 0 | $ | 175 | |||||||||||
Rabbi trust investments(a) | |||||||||||||||||||
Mutual funds | 9 | 0 | 0 | 9 | |||||||||||||||
Rabbi trust investments subtotal | 9 | 0 | 0 | 9 | |||||||||||||||
Total assets | 184 | 0 | 0 | 184 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -17 | 0 | -17 | |||||||||||||||
Total liabilities | 0 | -17 | 0 | -17 | |||||||||||||||
Total net assets (liabilities) | $ | 184 | $ | -17 | $ | 0 | $ | 167 | |||||||||||
(a) Excludes $14 million of the cash surrender value of life insurance investments at both June 30, 2014 and December 31, 2013. | |||||||||||||||||||
Baltimore Gas and Electric Company [Member] | ' | ||||||||||||||||||
Fair Value Tables [Line Items] | ' | ||||||||||||||||||
Fair value of financial liabilities recorded at the carrying amount | ' | ||||||||||||||||||
30-Jun-14 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 73 | $ | 3 | $ | 70 | $ | 0 | $ | 73 | |||||||||
Long-term debt (including amounts due within one year) | 1,976 | 0 | 2,206 | 0 | 2,206 | ||||||||||||||
Long-term debt to financing trusts | 258 | 0 | 0 | 259 | 259 | ||||||||||||||
31-Dec-13 | |||||||||||||||||||
Carrying | Fair Value | ||||||||||||||||||
Amount | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Short-term liabilities | $ | 138 | $ | 3 | $ | 135 | $ | 0 | $ | 138 | |||||||||
Long-term debt (including amounts due within one year) | 2,011 | 0 | 2,148 | 0 | 2,148 | ||||||||||||||
Long-term debt to financing trusts | 258 | 0 | 0 | 249 | 249 | ||||||||||||||
Assets and liabilities measured and recorded at fair value on recurring basis | ' | ||||||||||||||||||
As of June 30, 2014 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 53 | $ | 0 | $ | 0 | $ | 53 | |||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | 5 | 0 | 0 | 5 | |||||||||||||||
Rabbi trust investments subtotal | 5 | 0 | 0 | 5 | |||||||||||||||
Total assets | 58 | 0 | 0 | 58 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -5 | 0 | -5 | |||||||||||||||
Total liabilities | 0 | -5 | 0 | -5 | |||||||||||||||
Total net assets (liabilities) | $ | 58 | $ | -5 | $ | 0 | $ | 53 | |||||||||||
As of December 31, 2013 | Level 1 | Level 2 | Level 3 | Total | |||||||||||||||
Assets | |||||||||||||||||||
Cash equivalents | $ | 31 | $ | 0 | $ | 0 | $ | 31 | |||||||||||
Rabbi trust investments | |||||||||||||||||||
Mutual funds | 6 | 0 | 0 | 6 | |||||||||||||||
Rabbi trust investments subtotal | 6 | 0 | 0 | 6 | |||||||||||||||
Total assets | 37 | 0 | 0 | 37 | |||||||||||||||
Liabilities | |||||||||||||||||||
Deferred compensation obligation | 0 | -6 | 0 | -6 | |||||||||||||||
Total liabilities | 0 | -6 | 0 | -6 | |||||||||||||||
Total net assets (liabilities) | $ | 37 | $ | -6 | $ | 0 | $ | 31 |
Derivative_Financial_Instrumen1
Derivative Financial Instruments (Tables) | 6 Months Ended | |||||||||||||||||
Jun. 30, 2014 | ||||||||||||||||||
Derivative Financial Instruments [Line Items] | ' | |||||||||||||||||
Gain or loss on the hedged items and the offsetting loss or gain on the related interest rate swaps in interest expense | ' | |||||||||||||||||
__________ | ||||||||||||||||||
For the three and six months ended June 30, 2014, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. For the three and six months ended June 30, 2013, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. | ||||||||||||||||||
Summary of the derivative fair value | ' | |||||||||||||||||
Generation | Other | Exelon | ||||||||||||||||
Description | Derivatives Designated as Hedging Instruments | Economic Hedges | Proprietary Trading(a) | Collateral and Netting(b) | Subtotal | Derivatives Designated as Hedging Instruments | Total | |||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 0 | $ | 2 | $ | 14 | $ | -18 | $ | -2 | $ | 0 | $ | -2 | ||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 16 | 2 | 12 | -10 | 20 | 18 | 38 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 16 | $ | 4 | $ | 26 | $ | -28 | $ | 18 | $ | 18 | $ | 36 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -1 | $ | -4 | $ | -15 | $ | 19 | $ | -1 | $ | 0 | $ | -1 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -19 | -2 | -11 | 11 | -21 | -6 | -27 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -20 | $ | -6 | $ | -26 | $ | 30 | $ | -22 | $ | -6 | $ | -28 | ||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | -4 | $ | -2 | $ | 0 | $ | 2 | $ | -4 | $ | 12 | $ | 8 | ||||
Generation enters into interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The characterization of the interest rate derivative contracts between the proprietary trading activity in the above table is driven by the corresponding characterization of the underlying commodity position that gives rise to the interest rate exposure. Generation does not utilize proprietary trading interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates. | ||||||||||||||||||
Represents the netting of fair value balances with the same counterparty and any associated cash collateral. | ||||||||||||||||||
Generation | Other | Exelon | ||||||||||||||||
Description | Derivatives Designated as Hedging Instruments | Economic Hedges | Proprietary Trading(a) | Collateral and Netting(b) | Subtotal | Derivatives Designated as Hedging Instruments | Total | |||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 0 | $ | 3 | $ | 15 | $ | -19 | $ | -1 | $ | 0 | $ | -1 | ||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 26 | 3 | 15 | -13 | 31 | 7 | 38 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 26 | $ | 6 | $ | 30 | $ | -32 | $ | 30 | $ | 7 | $ | 37 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -1 | $ | -1 | $ | -18 | $ | 19 | $ | -1 | $ | 0 | $ | -1 | ||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -10 | -1 | -13 | 13 | -11 | -4 | -15 | |||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -11 | $ | -2 | $ | -31 | $ | 32 | $ | -12 | $ | -4 | $ | -16 | ||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | 15 | $ | 4 | $ | -1 | $ | 0 | $ | 18 | $ | 3 | $ | 21 | ||||
Generation enters into interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The characterization of the interest rate derivative contracts between the proprietary trading activity in the above table is driven by the corresponding characterization of the underlying commodity position that gives rise to the interest rate exposure. Generation does not utilize proprietary trading interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates. | ||||||||||||||||||
Represents the netting of fair value balances with the same counterparty and any associated cash collateral. | ||||||||||||||||||
Three Months Ended June 30, | ||||||||||||||||||
Income Statement | 2014 | 2013 | 2014 | 2013 | ||||||||||||||
Location | Gain (Loss) on Swaps | Gain (Loss) on Borrowings | ||||||||||||||||
Generation | Interest expense(a) | $ | -3 | $ | -5 | $ | 2 | $ | 2 | |||||||||
Exelon | Interest expense | 3 | -6 | -3 | 3 | |||||||||||||
Six Months Ended June 30, | ||||||||||||||||||
Income Statement | 2014 | 2013 | 2014 | 2013 | ||||||||||||||
Location | Gain (Loss) on Swaps | Gain (Loss) on Borrowings | ||||||||||||||||
Generation | Interest expense(a) | $ | -8 | $ | -9 | $ | 1 | $ | 1 | |||||||||
Exelon | Interest expense | 5 | -12 | -7 | 4 | |||||||||||||
Generation | ComEd | Exelon | ||||||||||||||||
Economic | Proprietary | Collateral and | Economic | Total | ||||||||||||||
Derivatives | Hedges | Trading | Netting(a) | Subtotal(b) | Hedges(c) | Derivatives | ||||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 3,422 | $ | 925 | $ | -3,716 | $ | 631 | $ | 0 | $ | 631 | ||||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 1,394 | 149 | -1,099 | 444 | 0 | 444 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 4,816 | $ | 1,074 | $ | -4,815 | $ | 1,075 | $ | 0 | $ | 1,075 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -3,354 | $ | -900 | $ | 4,040 | $ | -214 | $ | -13 | $ | -227 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -1,214 | -165 | 1,265 | -114 | -121 | -235 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -4,568 | $ | -1,065 | $ | 5,305 | $ | -328 | $ | -134 | $ | -462 | ||||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | 248 | $ | 9 | $ | 490 | $ | 747 | $ | -134 | $ | 613 | ||||||
__________ | ||||||||||||||||||
(a) Exelon and Generation net all available amounts allowed under the derivative accounting guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, letters of credit and other forms of non-cash collateral. These are not reflected in the table above. | ||||||||||||||||||
(b) Current and noncurrent assets are shown net of collateral of $(126) million and $(56) million, respectively, and current and noncurrent liabilities are shown net of collateral of $(198) million and $(110) million, respectively. The total cash collateral posted, net of cash collateral received and offset against mark-to-market assets and liabilities was $490 million at June 30, 2014. | ||||||||||||||||||
(c) Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers. | ||||||||||||||||||
Generation | ComEd | Exelon | ||||||||||||||||
Economic | Proprietary | Collateral and | Economic | Total | ||||||||||||||
Description | Hedges | Trading | Netting(a) | Subtotal(b) | Hedges (c) | Derivatives | ||||||||||||
Mark-to-market derivative assets | ||||||||||||||||||
(current assets) | $ | 2,616 | $ | 1,476 | $ | -3,364 | $ | 728 | $ | 0 | $ | 728 | ||||||
Mark-to-market derivative assets | ||||||||||||||||||
(noncurrent assets) | 1,344 | 285 | -1,060 | 569 | 0 | 569 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
assets | $ | 3,960 | $ | 1,761 | $ | -4,424 | $ | 1,297 | $ | 0 | $ | 1,297 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(current liabilities) | $ | -2,023 | $ | -1,410 | $ | 3,292 | $ | -141 | $ | -17 | $ | -158 | ||||||
Mark-to-market derivative liabilities | ||||||||||||||||||
(noncurrent liabilities) | -804 | -293 | 988 | -109 | -176 | -285 | ||||||||||||
Total mark-to-market derivative | ||||||||||||||||||
liabilities | $ | -2,827 | $ | -1,703 | $ | 4,280 | $ | -250 | $ | -193 | $ | -443 | ||||||
Total mark-to-market derivative | ||||||||||||||||||
net assets (liabilities) | $ | 1,133 | $ | 58 | $ | -144 | $ | 1,047 | $ | -193 | $ | 854 | ||||||
__________ | ||||||||||||||||||
(a) Exelon and Generation net all available amounts allowed under the derivative accounting guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, and letters of credit. These are not reflected in the table above. | ||||||||||||||||||
(b) Current and noncurrent assets are shown net of collateral of $84 million and $72 million, respectively, and current and noncurrent liabilities are shown net of collateral of $(12) million and $0 million, respectively. The total cash collateral received, net of cash collateral posted and offset against mark-to-market assets and liabilities was $144 million at December 31, 2013. | ||||||||||||||||||
(c) Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers. | ||||||||||||||||||
Other Derivatives - Gain (loss) and reclassification | ' | |||||||||||||||||
Prior to the merger, the five-year financial swap contract between Generation and ComEd was de-designated. As a result, all prospective changes in fair value were recorded to operating revenues and eliminated in consolidation. | ||||||||||||||||||
Change in fair value and reclassification of derivative contracts | ' | |||||||||||||||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Three Months Ended June 30, 2014 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | -124 | $ | 111 | $ | 0 | $ | -13 | $ | 0 | $ | 0 | $ | -13 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | 45 | -42 | 0 | 3 | 0 | 0 | 3 | |||||||||||
Net commodity mark-to-market gains (losses) | $ | -79 | $ | 69 | $ | 0 | $ | -10 | $ | 0 | $ | 0 | $ | -10 | ||||
Change in fair value of treasury positions | $ | -3 | $ | 0 | $ | -1 | $ | -4 | $ | 0 | $ | 0 | $ | -4 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | -1 | 0 | 0 | -1 | 0 | 0 | -1 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | -4 | $ | 0 | $ | -1 | $ | -5 | $ | 0 | $ | 0 | $ | -5 | ||||
Net mark-to-market gains (losses) | $ | -83 | $ | 69 | $ | -1 | $ | -15 | $ | 0 | $ | 0 | $ | -15 | ||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Six Months Ended June 30, 2014 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | -975 | $ | 282 | $ | 0 | $ | -693 | $ | 0 | $ | 0 | $ | -693 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | 137 | -183 | 0 | -46 | 0 | 0 | -46 | |||||||||||
Net commodity mark-to-market gains (losses) | $ | -838 | $ | 99 | $ | 0 | $ | -739 | $ | 0 | $ | 0 | $ | -739 | ||||
Change in fair value of treasury positions | $ | -4 | $ | 0 | $ | -1 | $ | -5 | $ | 0 | $ | 0 | $ | -5 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | -1 | 0 | 0 | -1 | 0 | 0 | -1 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | -5 | $ | 0 | $ | -1 | $ | -6 | $ | 0 | $ | 0 | $ | -6 | ||||
Net mark-to-market gains (losses) | $ | -843 | $ | 99 | $ | -1 | $ | -745 | $ | 0 | $ | 0 | $ | -745 | ||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Three Months Ended June 30, 2013 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | 460 | $ | -77 | $ | 0 | $ | 383 | $ | -13 | $ | 0 | $ | 370 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | 44 | 1 | 0 | 45 | 3 | 0 | 48 | |||||||||||
Net commodity mark-to-market gains (losses) | $ | 504 | $ | -76 | $ | 0 | $ | 428 | $ | -10 | $ | 0 | $ | 418 | ||||
Change in fair value of treasury positions | $ | 0 | $ | 0 | $ | -2 | $ | -2 | $ | 0 | $ | 0 | $ | -2 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | 0 | $ | 0 | $ | -2 | $ | -2 | $ | 0 | $ | 0 | $ | -2 | ||||
Net mark-to-market gains (losses) | $ | 504 | $ | -76 | $ | -2 | $ | 426 | $ | -10 | $ | 0 | $ | 416 | ||||
Generation | Intercompany Eliminations | HoldCo | Exelon | |||||||||||||||
Purchased | ||||||||||||||||||
Operating | Power | Interest | Operating | Interest | ||||||||||||||
Six Months Ended June 30, 2013 | Revenues | and Fuel | Expense | Total | Revenues(a) | Expense | Total | |||||||||||
Change in fair value of commodity positions | $ | -26 | $ | 69 | $ | $ | 43 | $ | -6 | $ | 0 | $ | 37 | |||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | -56 | 38 | -18 | 13 | 0 | -5 | ||||||||||||
Net commodity mark-to-market gains (losses) | $ | -82 | $ | 107 | $ | 0 | $ | 25 | $ | 7 | $ | 0 | $ | 32 | ||||
Change in fair value of treasury positions | $ | 0 | $ | 0 | $ | -3 | $ | -3 | $ | 0 | $ | 0 | $ | -3 | ||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||
Net treasury mark-to-market gains (losses) | $ | 0 | $ | 0 | $ | -3 | $ | -3 | $ | 0 | $ | 0 | $ | -3 | ||||
Net mark-to-market gains (losses) | $ | -82 | $ | 107 | $ | -3 | $ | 22 | $ | 7 | $ | 0 | $ | 29 | ||||
Three Months Ended | Six Months Ended | |||||||||||||||||
Location on Income | June 30, | June 30, | ||||||||||||||||
Statement | 2014 | 2013 | 2014 | 2013 | ||||||||||||||
Change in fair value of commodity positions | Operating Revenues | $ | 1 | $ | 5 | $ | 0 | $ | 1 | |||||||||
Reclassification to realized at settlement | ||||||||||||||||||
of commodity positions | Operating Revenues | -8 | -1 | -7 | 5 | |||||||||||||
Net commodity mark-to-market gains (losses) | Operating Revenues | $ | -7 | $ | 4 | $ | -7 | $ | 6 | |||||||||
Change in fair value of treasury positions | Operating Revenues | $ | 0 | $ | 0 | $ | -1 | $ | 0 | |||||||||
Reclassification to realized at settlement | ||||||||||||||||||
of treasury positions | Operating Revenues | 1 | -1 | 1 | -1 | |||||||||||||
Net treasury mark-to-market gains (losses) | Operating Revenues | $ | 1 | $ | -1 | $ | 0 | $ | -1 | |||||||||
Net mark-to-market gains (losses) | Operating Revenues | $ | -6 | $ | 3 | $ | -7 | $ | 5 | |||||||||
Information on Generation's credit exposure for all derivative instruments, normal purchase normal sales, and applicable payables and receivables, net of collateral and instruments that are subject to master netting agreements | ' | |||||||||||||||||
Total | Number of | Net Exposure of | ||||||||||||||||
Exposure | Counterparties | Counterparties | ||||||||||||||||
Before Credit | Credit | Net | Greater than 10% | Greater than 10% | ||||||||||||||
Rating as of June 30, 2014 | Collateral | Collateral(a) | Exposure | of Net Exposure | of Net Exposure | |||||||||||||
Investment grade | $ | 1,095 | $ | 103 | $ | 992 | 1 | $ | 417 | |||||||||
Non-investment grade | 12 | 9 | 3 | 0 | 0 | |||||||||||||
No external ratings | ||||||||||||||||||
Internally rated - investment grade | 286 | 2 | 284 | 1 | 189 | |||||||||||||
Internally rated - non-investment | ||||||||||||||||||
grade | 21 | 4 | 17 | 0 | 0 | |||||||||||||
Total | $ | 1,414 | $ | 118 | $ | 1,296 | 2 | $ | 606 | |||||||||
Net Credit Exposure by Type of Counterparty | As of June 30, 2014 | |||||||||||||||||
Financial institutions | $ | 185 | ||||||||||||||||
Investor-owned utilities, marketers, power producers | 360 | |||||||||||||||||
Energy cooperatives and municipalities | 729 | |||||||||||||||||
Other | 22 | |||||||||||||||||
Total | $ | 1,296 | ||||||||||||||||
Credit-Risk Related Contingent Feature | 30-Jun-14 | 31-Dec-13 | ||||||||||||||||
Gross Fair Value of Derivative Contracts Containing this Feature(a) | $ | -1,102 | $ | -1,056 | ||||||||||||||
Offsetting Fair Value of In-the-Money Contracts Under Master Netting Arrangements(b) | 825 | 846 | ||||||||||||||||
Net Fair Value of Derivative Contracts Containing This Feature(c) | $ | -277 | $ | -210 | ||||||||||||||
Amount represents the gross fair value of out-of-the-money derivative contracts containing credit-risk related contingent features ignoring the effects of master netting agreements. | ||||||||||||||||||
Amount represents the offsetting fair value of in-the-money derivative contracts under legally enforceable master netting agreements with the same counterparty, which reduces the amount of any liability for which a Registrant could potentially be required to post collateral. | ||||||||||||||||||
Amount represents the net fair value of out-of-the-money derivative contracts containing credit-risk related contingent features after considering the mitigating effects of offsetting positions under master netting arrangements and reflects the actual net liability upon which any potential contingent collateral obligations would be based. | ||||||||||||||||||
Debt_and_Credit_Agreements_Yea
Debt and Credit Agreements Year-End (Tables) | 6 Months Ended | ||||||||||
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | |||||||||
Commonwealth Edison Co [Member] | Baltimore Gas and Electric Company [Member] | ||||||||||
Debt Instrument [Line Items] | ' | ' | ' | ||||||||
Schedule Of Short Term Debt [Text Block] | ' | '184 | '135 | ||||||||
Type of Credit Facility | Amount (a) | Expiration Dates | Capacity Type | ||||||||
Exelon Corporate | (In billions) | ||||||||||
Syndicated Revolver(b) | $ | 0.5 | May-19 | Letters of credit and cash | |||||||
Generation | |||||||||||
Syndicated Revolver | 5.1 | May-19 | Letters of credit and cash | ||||||||
Syndicated Revolver | 0.2 | Aug-18 | Letters of credit and cash | ||||||||
Bilateral | 0.3 | December 2015 and March 2016 | Letters of credit and cash | ||||||||
Bilateral | 0.1 | Jan-15 | Letters of credit | ||||||||
Bilateral | 0.1 | Oct-14 | Letters of credit and cash | ||||||||
ComEd | |||||||||||
Syndicated Revolver | 1 | Mar-19 | Letters of credit and cash | ||||||||
PECO | |||||||||||
Syndicated Revolver(b) | 0.6 | May-19 | Letters of credit and cash | ||||||||
BGE | |||||||||||
Syndicated Revolver(b) | 0.6 | May-19 | Letters of credit and cash | ||||||||
Total | $ | 8.5 | |||||||||
Excludes additional credit facility agreements for Generation, ComEd, PECO and BGE with aggregate commitments of $50 million, $34 million, $34 million and $5 million, respectively, arranged with minority and community banks located primarily within ComEd's, PECO's and BGE's service territories. These facilities expire on October 18, 2014 and are solely utilized to issue letters of credit. As of June 30, 2014, letters of credit issued under these agreements for Generation, ComEd, PECO and BGE totaled $20 million, $18 million, $21 million and $1 million, respectively. Also, excludes the unsecured bridge credit facility of $7.2 billion to support the PHI transaction discussed below. | |||||||||||
Includes credit facilities for Exelon Corporate, PECO and BGE with aggregate commitments of $22 million, $27 million and $27 million, respectively, that expire in August 2018. | |||||||||||
Debt_and_Credit_Agreements_Qua
Debt and Credit Agreements Quarter-End (Tables) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | |||||||||||
Commonwealth Edison Co [Member] | Baltimore Gas and Electric Company [Member] | ||||||||||||
Debt and Credit Agreements [Line Items] | ' | ' | ' | ||||||||||
Commercial paper and credit facility borrowings outstanding | ' | '184 | '135 | ||||||||||
Type of Credit Facility | Amount (a) | Expiration Dates | Capacity Type | ||||||||||
Exelon Corporate | (In billions) | ||||||||||||
Syndicated Revolver(b) | $ | 0.5 | May-19 | Letters of credit and cash | |||||||||
Generation | |||||||||||||
Syndicated Revolver | 5.1 | May-19 | Letters of credit and cash | ||||||||||
Syndicated Revolver | 0.2 | Aug-18 | Letters of credit and cash | ||||||||||
Bilateral | 0.3 | December 2015 and March 2016 | Letters of credit and cash | ||||||||||
Bilateral | 0.1 | Jan-15 | Letters of credit | ||||||||||
Bilateral | 0.1 | Oct-14 | Letters of credit and cash | ||||||||||
ComEd | |||||||||||||
Syndicated Revolver | 1 | Mar-19 | Letters of credit and cash | ||||||||||
PECO | |||||||||||||
Syndicated Revolver(b) | 0.6 | May-19 | Letters of credit and cash | ||||||||||
BGE | |||||||||||||
Syndicated Revolver(b) | 0.6 | May-19 | Letters of credit and cash | ||||||||||
Total | $ | 8.5 | |||||||||||
Excludes additional credit facility agreements for Generation, ComEd, PECO and BGE with aggregate commitments of $50 million, $34 million, $34 million and $5 million, respectively, arranged with minority and community banks located primarily within ComEd's, PECO's and BGE's service territories. These facilities expire on October 18, 2014 and are solely utilized to issue letters of credit. As of June 30, 2014, letters of credit issued under these agreements for Generation, ComEd, PECO and BGE totaled $20 million, $18 million, $21 million and $1 million, respectively. Also, excludes the unsecured bridge credit facility of $7.2 billion to support the PHI transaction discussed below. | |||||||||||||
Includes credit facilities for Exelon Corporate, PECO and BGE with aggregate commitments of $22 million, $27 million and $27 million, respectively, that expire in August 2018. | |||||||||||||
Issuance of Long-Term Debt | ' | ' | ' | ||||||||||
Company | Type | Interest Rate | Maturity | Amount | Use of Proceeds | ||||||||
Exelon | Junior Subordinated Notes | 2.5 | % | 1-Jun-24 | $ | 1,150 | Used to finance a portion of the acquisition of PHI and for general corporate purposes | ||||||
Generation | Nuclear Fuel Purchase Contract | 3.35 | % | 30-Jun-18 | $ | 38 | Used for procurement of uranium | ||||||
Generation | ExGen Renewables I Project Financing(a) | LIBOR + 4.250% | 6-Feb-21 | $ | 300 | Used for general corporate purposes | |||||||
ComEd | Mortgage Bonds Series 115 | 2.15 | % | 15-Jan-19 | $ | 300 | Used to refinance existing mortgage bonds | ||||||
ComEd | Mortgage Bonds Series 116 | 4.7 | % | 15-Jan-44 | $ | 350 | Used to refinance existing mortgage bonds | ||||||
Company | Type | Interest Rate | Maturity | Amount | Use of Proceeds | ||||||||
Generation | Upstream Gas Lending Agreement | 2.21 | % | 22-Jul-16 | $ | 3 | Used to fund Upstream gas activities | ||||||
Generation | DOE Project Financing | 2.535 - 2.922 | % | 5-Jan-37 | $ | 197 | Funding for Antelope Valley Solar Development | ||||||
Generation | Energy Efficiency Project Financing | 4.4 | % | 31-Aug-14 | $ | 9 | Funding to install energy conservation measures in Beckley, West Virginia | ||||||
BGE | Senior Notes | 3.35 | % | 1-Jul-23 | $ | 300 | Used to partially refinance Notes due July 1, 2013 and for general corporate purposes | ||||||
Retirement of Long-Term Debt | ' | ' | ' | ||||||||||
Company | Type | Interest Rate | Maturity | Amount | |||||||||
Generation | 2003 Senior Notes | 5.35 | % | 15-Jan-14 | $ | 500 | |||||||
Generation | Pollution Control Loan | 4.1 | % | 1-Jul-14 | $ | 20 | |||||||
Generation | Continental Wind Project Financing | 6 | % | 28-Feb-33 | $ | 11 | |||||||
Generation | Kennett Square Capital Lease | 7.83 | % | 20-Sep-20 | $ | 2 | |||||||
Generation | ExGen Renewables I | 3mL + 4.25 | % | 6-Feb-21 | $ | 3 | |||||||
Generation | AVSR | 2.33% - 3.55% | 5-Jan-37 | $ | 1 | ||||||||
Generation | Clean Horizons Solar | 2.56 | % | 7-Sep-30 | $ | 1 | |||||||
Generation | Sacramento Solar | 2.56 | % | 31-Dec-30 | $ | 1 | |||||||
ComEd | Mortgage Bonds Series 110 | 1.63 | % | 15-Jan-14 | $ | 600 | |||||||
ComEd | Pollution Control Series 1994C | 5.85 | % | 15-Jan-14 | $ | 17 | |||||||
BGE | Rate Stabilization Bonds | 5.72 | % | 1-Apr-17 | $ | 35 | |||||||
Company | Type | Interest Rate | Maturity | Amount | |||||||||
Generation | Kennett Square Capital Lease | 7.83 | % | 20-Sep-20 | $ | 1 | |||||||
Generation | Solar Revolver | 1.95 | % | 7-Jul-14 | $ | 6 | |||||||
Generation | Clean Horizons Solar | 2.563 | % | 7-Sep-30 | $ | 1 | |||||||
Generation | (a) | Series A Junior Subordinated Debentures | 8.625 | % | 15-Jun-63 | $ | 450 | ||||||
ComEd | First Mortgage Bonds Series 92 | 7.625 | % | 15-Apr-13 | $ | 125 | |||||||
BGE | Rate Stabilization Bonds | 5.72 | % | 1-Apr-17 | $ | 33 |
Asset_Retirement_Obligations_T
Asset Retirement Obligations (Tables) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Asset Retirement Obligations Tables [Line Items] | ' | ||||||||||||
Nuclear decommissioning asset retirement obligation rollforward | ' | ||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
(a) Includes $9 million as the current portion of the ARO at June 30, 2014 and December 31, 2013 which is included in Other current liabilities on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Includes the fair value of the CENG ARO liability as of April 1, 2014, the date of consolidation. See Note 6 - Investment in Constellation Energy Nuclear Group, LLC for additional information. | |||||||||||||
Unrealized Gains (Losses) on nuclear decommissioning trust funds | ' | ||||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
(a) Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(c) Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||
Zion Station pledged assets | ' | ||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
Exelon Generation Co L L C [Member] | ' | ||||||||||||
Asset Retirement Obligations Tables [Line Items] | ' | ||||||||||||
Nuclear decommissioning asset retirement obligation rollforward | ' | ||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
Unrealized Gains (Losses) on nuclear decommissioning trust funds | ' | ||||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
Zion Station pledged assets | ' | ||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
Nuclear_Decommissioning_Tables
Nuclear Decommissioning (Tables) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Schedule Of Nuclear Decommissioning [Line Items] | ' | ||||||||||||
Nuclear decommissioning asset retirement obligation rollforward | ' | ||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
(a) Includes $9 million as the current portion of the ARO at June 30, 2014 and December 31, 2013 which is included in Other current liabilities on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Includes the fair value of the CENG ARO liability as of April 1, 2014, the date of consolidation. See Note 6 - Investment in Constellation Energy Nuclear Group, LLC for additional information. | |||||||||||||
Unrealized Gains (Losses) on nuclear decommissioning trust funds | ' | ||||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
(a) Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||||||
(b) Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
(c) Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||
Zion Station pledged assets | ' | ||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
Exelon Generation Co L L C [Member] | ' | ||||||||||||
Schedule Of Nuclear Decommissioning [Line Items] | ' | ||||||||||||
Nuclear decommissioning asset retirement obligation rollforward | ' | ||||||||||||
Nuclear decommissioning ARO at December 31, 2013 (a) | $ | 4,855 | |||||||||||
Consolidation of CENG (b) | 1,701 | ||||||||||||
Accretion expense | 154 | ||||||||||||
Costs incurred to decommission retired plants | -3 | ||||||||||||
Nuclear decommissioning ARO at June 30, 2014 (a) | $ | 6,707 | |||||||||||
Unrealized Gains (Losses) on nuclear decommissioning trust funds | ' | ||||||||||||
Exelon and Generation | |||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Regulatory Agreement Units (a) | $ | 172 | $ | -102 | $ | 234 | $ | 92 | |||||
Net unrealized gains (losses) on decommissioning trust funds — | |||||||||||||
Non-Regulatory Agreement Units (b)(c) | 128 | -40 | 141 | 24 | |||||||||
Zion Station pledged assets | ' | ||||||||||||
Exelon and Generation | |||||||||||||
June 30, | December 31, | ||||||||||||
2014 | 2013 | ||||||||||||
Carrying value of Zion Station pledged assets | $ | 402 | $ | 458 | |||||||||
Payable to Zion Solutions (a) | 357 | 414 | |||||||||||
Current portion of payable to Zion Solutions (b) | 93 | 109 | |||||||||||
Withdrawals by Zion Solutions to pay decommissioning costs (c) | 575 | 498 | |||||||||||
Excludes a liability recorded within Exelon's and Generation's Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||||||
Included in Other current liabilities within Exelon's and Generation's Consolidated Balance Sheets. | |||||||||||||
Cumulative withdrawals since September 1, 2010. | |||||||||||||
Retirement_Benefits_Tables
Retirement Benefits (Tables) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Retirement Benefits [Line Items] | ' | ||||||||||||
Schedule of Defined Benefit Plans Disclosures [Text Block] | ' | ||||||||||||
Pension Benefits | Other Postretirement Benefits | ||||||||||||
Three Months Ended | Three Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014(a) | 2013 | 2014(a) | 2013 | ||||||||||
Service cost | $ | 69 | $ | 79 | $ | 29 | $ | 40 | |||||
Interest cost | 184 | 163 | 45 | 49 | |||||||||
Expected return on assets | -242 | -254 | -38 | -33 | |||||||||
Amortization of: | |||||||||||||
Prior service cost (benefit) | 4 | 4 | -30 | -6 | |||||||||
Actuarial loss | 104 | 141 | 12 | 21 | |||||||||
Net periodic benefit cost | $ | 119 | $ | 133 | $ | 18 | $ | 71 | |||||
Pension Benefits | Other Postretirement Benefits | ||||||||||||
Six Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
2014(a) | 2013 | 2014(a) | 2013 | ||||||||||
Service cost | $ | 138 | $ | 159 | $ | 61 | $ | 81 | |||||
Interest cost | 367 | 326 | 101 | 97 | |||||||||
Expected return on assets | -483 | -508 | -76 | -66 | |||||||||
Amortization of: | |||||||||||||
Prior service cost (benefit) | 7 | 7 | -34 | -10 | |||||||||
Actuarial loss | 209 | 281 | 20 | 42 | |||||||||
Net periodic benefit cost | $ | 238 | $ | 265 | $ | 72 | $ | 144 | |||||
Schedule Of Pension And Other Postretirement Benefit Costs [Text Block] | ' | ||||||||||||
Pension Benefits | Other Postretirement Benefits | ||||||||||||
Service cost | $ | 5 | $ | 1 | |||||||||
Interest cost | 6 | 2 | |||||||||||
Expected return on assets | -9 | 0 | |||||||||||
Net periodic benefit cost | $ | 2 | $ | 3 | |||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Pension and Other Postretirement Benefit Costs | 2014 | 2013 | 2014 | 2013 | |||||||||
Generation(a) | $ | 63 | $ | 87 | $ | 139 | $ | 173 | |||||
ComEd | 40 | 77 | 96 | 154 | |||||||||
PECO | 9 | 10 | 21 | 21 | |||||||||
BGE | 17 | 14 | 33 | 27 | |||||||||
BSC(b) | 13 | 16 | 26 | 34 | |||||||||
These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO or BGE amounts above. | |||||||||||||
Schedule Of Defined Contributions [Text Block] | ' | ||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Savings Plan Matching Contributions | 2014 | 2013 | 2014 | 2013 | |||||||||
Exelon(a) | $ | 19 | $ | 21 | $ | 48 | $ | 43 | |||||
Generation(a) | 10 | 10 | 24 | 21 | |||||||||
ComEd | 5 | 5 | 12 | 10 | |||||||||
PECO | 2 | 2 | 4 | 4 | |||||||||
BGE | 1 | 2 | 4 | 4 | |||||||||
BSC(b) | 1 | 2 | 4 | 4 | |||||||||
Includes $1 million of matching contributions to CENG's 401(k) defined contribution savings plan for the period April 1, 2014 to June 30, 2014. | |||||||||||||
These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These costs are not included in the Generation, ComEd, PECO or BGE amounts above. | |||||||||||||
Serverance_And_Plant_Retiremen
Serverance And Plant Retirements (Tables) | 6 Months Ended | ||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||
Corporate Restructuring And Plant Retirements Tables [Abstract] | ' | ||||||||||||||||
Total severance benefits costs, recorded as operating and maintenance expense | ' | ||||||||||||||||
Three Months Ended June 30, 2014 | |||||||||||||||||
Severance Benefits | Exelon | Generation | |||||||||||||||
Severance charges (a) | $ | 1 | $ | 1 | |||||||||||||
Total severance benefits | $ | 1 | $ | 1 | |||||||||||||
Six Months Ended June 30, 2014 | |||||||||||||||||
Severance Benefits | Exelon | Generation | |||||||||||||||
Severance charges (a) | $ | 2 | $ | 2 | |||||||||||||
Total severance benefits | $ | 2 | $ | 2 | |||||||||||||
Activity of severance obligations for the corporate restructuring (excluding obligations recorded in equity) | ' | ||||||||||||||||
Six Months Ended June 30, 2014 | |||||||||||||||||
Severance Liability | Exelon | Generation | |||||||||||||||
Balance at December 31, 2013 | $ | 2 | $ | 2 | |||||||||||||
Integration of CENG (a) | 19 | 19 | |||||||||||||||
Severance charges | 2 | 2 | |||||||||||||||
Payments | -3 | -3 | |||||||||||||||
Balance at June 30, 2014 | $ | 20 | $ | 20 | |||||||||||||
Six Months Ended June 30, 2014 | |||||||||||||||||
Severance Liability | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||
Balance at December 31, 2013 | $ | 53 | $ | 10 | $ | 0 | $ | 0 | $ | 6 | |||||||
Payments | -20 | -2 | 0 | 0 | -3 | ||||||||||||
Balance at June 30, 2014 | $ | 33 | $ | 8 | $ | 0 | $ | 0 | $ | 3 | |||||||
Schedule Of Severance Costs [TableTextBlock] | ' | ||||||||||||||||
Exelon | Generation | ComEd | PECO | BGE | |||||||||||||
Three Months Ending | |||||||||||||||||
30-Jun-14 | $ | 4 | $ | 2 | $ | 0 | $ | 0 | $ | 0 | |||||||
30-Jun-13 | $ | 1 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | |||||||
Six Months Ending | |||||||||||||||||
30-Jun-14 | $ | 6 | $ | 4 | $ | 0 | $ | 0 | $ | 0 | |||||||
30-Jun-13 | $ | 2 | $ | 1 | $ | 1 | $ | 0 | $ | 0 |
StockBased_Compensation_Plans_1
Stock-Based Compensation Plans (Tables) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Stock-Based Compensation Plans [Line Items] | ' | ||||||||||||
Stock Based Compensation Components [Text Block] | ' | ||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Components of Stock-Based Compensation Expense | 2014 | 2013 | 2014 | 2013 | |||||||||
Performance share awards | $ | 12 | $ | 5 | $ | 41 | $ | 32 | |||||
Stock options | 1 | 2 | 3 | 13 | |||||||||
Restricted stock units | 13 | 12 | 49 | 41 | |||||||||
Other stock-based awards | 1 | 1 | 4 | 3 | |||||||||
Total stock-based compensation expense included in | |||||||||||||
operating and maintenance expense | 27 | 20 | 97 | 89 | |||||||||
Income tax benefit | -10 | -8 | -37 | -34 | |||||||||
Total after-tax stock-based compensation expense | $ | 17 | $ | 12 | $ | 60 | $ | 55 | |||||
Stock Based Compensation Expense Subsidiaries [Text Block] | ' | ||||||||||||
Three Months Ended | Six Months Ended | ||||||||||||
June 30, | June 30, | ||||||||||||
Subsidiaries | 2014 | 2013 | 2014 | 2013 | |||||||||
Generation | $ | 10 | $ | 9 | $ | 38 | $ | 33 | |||||
ComEd | 3 | 2 | 7 | 9 | |||||||||
PECO | 1 | 1 | 4 | 4 | |||||||||
BGE (a) | 1 | 1 | 5 | 4 | |||||||||
BSC (b) | 12 | 7 | 43 | 39 | |||||||||
Total (c) | $ | 27 | $ | 20 | $ | 97 | $ | 89 | |||||
(a) BGE's stock-based compensation expense (pre-tax) for the six months ended June 30, 2013 excludes $2 million of cost incurred in 2012 prior to the closing of Exelon's merger with Constellation on March 12, 2012. This amount is not included in Exelon's stock-based compensation expense for the six months ended June 30, 2013 shown in the tables titled Components of Stock-Based Compensation Expense and Subsidiaries above. | |||||||||||||
(b) These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO and BGE amounts above. | |||||||||||||
(c) The stock-based compensation expense (pre-tax) for the three and six months ended June 30, 2014 reflects the impact of changes to the retirement eligibility requirements for employees participating in the LTIP. In addition, the stock-based compensation expense at ComEd reflects the adoption of the ComEd Key Manager Long-Term Performance Program in 2013 for certain employees, which is not considered stock-based compensation expense under the applicable authoritative guidance. In 2012, these employees participated in the Exelon Restricted Stock Award Program. | |||||||||||||
Changes_in_Accumulated_Other_C1
Changes in Accumulated Other Comprehensive Income (Tables) | 6 Months Ended | |||||||||||||
Jun. 30, 2014 | ||||||||||||||
Accumulated Other Comprehensive Income Loss [Line Items] | ' | |||||||||||||
Schedule Of Accumulated Other Comprehensive Income Loss Table [Text Block] | ' | |||||||||||||
For The Six Months Ended June 30, 2014 | Gains and (Losses) on Cash Flow Hedges | Unrealized Gains and (Losses) on Marketable Securities | Pension and Non-Pension Postretirement Benefit Plan Items | Foreign Currency Items | AOCI of Equity Investments | Total | ||||||||
Exelon (a) | ||||||||||||||
Beginning balance | $ | 120 | $ | 2 | $ | -2,260 | $ | -10 | $ | 108 | $ | -2,040 | ||
OCI before reclassifications | -11 | 1 | 246 | -1 | 11 | 246 | ||||||||
Amounts reclassified from AOCI (b) | -62 | 0 | 66 | 0 | -116 | -112 | ||||||||
Net current-period OCI | -73 | 1 | 312 | -1 | -105 | 134 | ||||||||
Ending balance | $ | 47 | $ | 3 | $ | -1,948 | $ | -11 | $ | 3 | $ | -1,906 | ||
Generation (a) | ||||||||||||||
Beginning balance | $ | 114 | $ | 2 | $ | 0 | $ | -10 | $ | 108 | $ | 214 | ||
OCI before reclassifications | -8 | -1 | 0 | -1 | 11 | 1 | ||||||||
Amounts reclassified from AOCI (b) | -62 | 0 | 0 | 0 | -116 | -178 | ||||||||
Net current-period OCI | -70 | -1 | 0 | -1 | -105 | -177 | ||||||||
Ending balance | $ | 44 | $ | 1 | $ | 0 | $ | -11 | $ | 3 | $ | 37 | ||
ComEd (a) | ||||||||||||||
PECO (a) | ||||||||||||||
Beginning balance | $ | 0 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | $ | 1 | ||
OCI before reclassifications | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||
Net current-period OCI | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||
Ending balance | $ | 0 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | $ | 1 | ||
BGE (a) | ||||||||||||||
(a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. | ||||||||||||||
(b) See tables following changes in accumulated other comprehensive income tables for details about these reclassifications. | ||||||||||||||
Schedule Of Other Comprehensive Income Loss Tax Table [TextBlock] | ' | |||||||||||||
Three Months Ended | Six Months Ended | |||||||||||||
June 30, | June 30, | |||||||||||||
2014 | 2013 | 2014 | 2013 | |||||||||||
Exelon | ||||||||||||||
Pension and non-pension postretirement benefit plans: | ||||||||||||||
Prior service benefit reclassified to periodic benefit cost | $ | 5 | $ | 0 | $ | 5 | $ | 1 | ||||||
Actuarial loss reclassified to periodic cost | -23 | -32 | -46 | -66 | ||||||||||
Pension and non-pension post retirement benefit plans valuation adjustment | -166 | -1 | -159 | -50 | ||||||||||
Change in unrealized loss on cash flow hedges | 28 | 45 | 48 | 77 | ||||||||||
Change in unrealized income on equity investments | 77 | -5 | 70 | -23 | ||||||||||
Deferred compensation unit valuation adjustment | 0 | -6 | 0 | -6 | ||||||||||
Total | $ | -79 | $ | 1 | $ | -82 | $ | -67 | ||||||
Generation | ||||||||||||||
Change in unrealized loss on cash flow hedges | $ | 25 | $ | 89 | $ | 44 | $ | 175 | ||||||
Change in unrealized income on equity investments | 77 | -5 | 70 | -23 | ||||||||||
Change in marketable securities | 0 | 0 | -2 | 0 | ||||||||||
Total | $ | 102 | $ | 84 | $ | 112 | $ | 152 | ||||||
Earnings_Per_Share_and_Equity_1
Earnings Per Share and Equity (Tables) | 6 Months Ended | ||||||||||||
Jun. 30, 2014 | |||||||||||||
Earnings Per Share and Equity Tables [Abstract] | ' | ||||||||||||
Reconciliation of basic and diluted earnings per share | ' | ||||||||||||
Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||
2014 | 2013 | 2014 | 2013 | ||||||||||
Net income attributable to common shareholders | $ | 522 | $ | 490 | $ | 612 | $ | 486 | |||||
Average common shares outstanding — basic | 860 | 856 | 860 | 856 | |||||||||
Potentially dilutive effect of stock options, performance share awards, | |||||||||||||
restricted stock, and Exelon's equity forward sales agreement | 4 | 4 | 3 | 3 | |||||||||
Average common shares outstanding — diluted | 864 | 860 | 863 | 859 |
Commitments_and_Contingencies_1
Commitments and Contingencies (Tables) | 6 Months Ended | ||||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||||
Commitments And Contingencies Tables Disclosure [Line Items] | ' | ||||||||||||||||||||
Energy Commitments [Text Block] | ' | ||||||||||||||||||||
Net Capacity | REC | Transmission Rights | |||||||||||||||||||
Purchases (a) | Purchases (b) | Purchases (c) | Total | ||||||||||||||||||
2014 | $ | 208 | $ | 43 | $ | 13 | $ | 264 | |||||||||||||
2015 | 353 | 163 | 13 | 529 | |||||||||||||||||
2016 | 269 | 122 | 2 | 393 | |||||||||||||||||
2017 | 208 | 59 | 2 | 269 | |||||||||||||||||
2018 | 98 | 13 | 2 | 113 | |||||||||||||||||
Thereafter | 388 | 4 | 32 | 424 | |||||||||||||||||
Total | $ | 1,524 | $ | 404 | $ | 64 | $ | 1,992 | |||||||||||||
(a) Net capacity purchases include PPAs and other capacity contracts including those that are accounted for as operating leases. Amounts presented in the commitments represent Generation's expected payments under these arrangements at June 30, 2014, net of fixed capacity payments expected to be received by Generation under contracts to resell such acquired capacity to third parties under long-term capacity sale contracts. Expected payments include certain fixed capacity charges which may be reduced based on plant availability. | |||||||||||||||||||||
(b) The table excludes renewable energy purchases that are contingent in nature. | |||||||||||||||||||||
(c) Transmission rights purchases include estimated commitments for additional transmission rights that will be required to fulfill firm sales contracts. | |||||||||||||||||||||
Utility Energy Purchase Commitments [Text Block] | ' | ||||||||||||||||||||
Expiration within | |||||||||||||||||||||
2019 | |||||||||||||||||||||
Total | 2014 | 2015 | 2016 | 2017 | 2018 | and beyond | |||||||||||||||
ComEd | |||||||||||||||||||||
Electric supply procurement (a) | $ | 740 | $ | 217 | $ | 232 | $ | 151 | $ | 140 | $ | 0 | $ | 0 | |||||||
Renewable energy and RECs (b) | 1,548 | 32 | 73 | 76 | 77 | 78 | 1,212 | ||||||||||||||
PECO | |||||||||||||||||||||
Electric supply procurement (c) | 550 | 381 | 169 | 0 | 0 | 0 | 0 | ||||||||||||||
AECs (d) | 13 | 1 | 2 | 2 | 2 | 2 | 4 | ||||||||||||||
BGE | |||||||||||||||||||||
Electric supply procurement (e) | 1,320 | 448 | 632 | 240 | 0 | 0 | 0 | ||||||||||||||
Curtailment services (f) | 136 | 21 | 40 | 34 | 29 | 12 | 0 | ||||||||||||||
(a) ComEd entered into various contracts for the procurement of electricity that started to expire in 2012, and will continue to expire through 2017. ComEd is permitted to recover its electric supply procurement costs from retail customers with no mark-up. As of June 30, 2014, ComEd has completed the ICC-approved procurement process for a portion of its energy requirements through the periods ending May 31, 2015, 2016 and 2017. | |||||||||||||||||||||
(b) Primarily related to ComEd 20-year contracts for renewable energy and RECs beginning in June 2012. ComEd is permitted to recover its renewable energy and REC costs from retail customers with no mark-up. The commitments represent the maximum settlements with suppliers for renewable energy and RECs under the existing contract terms. | |||||||||||||||||||||
(c) PECO entered into various contracts for the procurement of electric supply to serve its default service customers that expire between 2014 and 2016. PECO is permitted to recover its electric supply procurement costs from default service customers with no mark-up in accordance with its PAPUC-approved DSP Programs. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
(d) PECO is subject to requirements related to the use of alternative energy resources established by the AEPS Act. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
(e) BGE entered into various contracts for the procurement of electricity that expire between 2014 through 2016. The cost of power under these contracts is recoverable under MDPSC approved fuel clauses. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
(f) BGE has entered into various contracts with curtailment services providers related to transactions in PJM's capacity market. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||
Fuel Purchase Commitments [Text Block] | ' | ||||||||||||||||||||
Expiration within | |||||||||||||||||||||
2019 | |||||||||||||||||||||
Total | 2014 | 2015 | 2016 | 2017 | 2018 | and beyond | |||||||||||||||
Generation | $ | 9,973 | $ | 694 | $ | 1,526 | $ | 1,230 | $ | 1,276 | $ | 929 | $ | 4,318 | |||||||
PECO | 411 | 90 | 112 | 93 | 35 | 15 | 66 | ||||||||||||||
BGE | 618 | 64 | 83 | 82 | 65 | 53 | 271 | ||||||||||||||
Commercial Commitments [Text Block] | ' | ||||||||||||||||||||
Exelon | Generation | ComEd | PECO | BGE | |||||||||||||||||
Letters of credit (non-debt) (a) | $ | 1,514 | $ | 1,470 | $ | 19 | $ | 22 | $ | 1 | |||||||||||
Guarantees | 4,706 | (b) | 1,346 | (c) | 206 | (d) | 181 | (e) | 259 | (f) | |||||||||||
Nuclear insurance premiums (g) | 3,559 | 3,559 | 0 | 0 | 0 | ||||||||||||||||
Underwriters discount (h) | 60 | 0 | 0 | 0 | 0 | ||||||||||||||||
Total commercial commitments | $ | 9,839 | $ | 6,375 | $ | 225 | $ | 203 | $ | 260 | |||||||||||
(a) Non-debt letters of credit maintained to provide credit support for certain transactions as requested by third parties. | |||||||||||||||||||||
(b) Primarily reflects parental guarantees issued on behalf of Generation to allow the flexibility needed to conduct business with counterparties without having to post other forms of collateral. Also reflects guarantees issued to ensure performance under specific contracts, preferred securities of financing trusts, property leases, indemnifications, NRC minimum funding assurance requirements and miscellaneous guarantees. The estimated net exposure for obligations under commercial transactions covered by these guarantees was $0.6 billion at June 30, 2014, which represents the total amount Exelon could be required to fund based on June 30, 2014 market prices. | |||||||||||||||||||||
(c) Primarily reflects guarantees issued to ensure performance under energy marketing and other specific contracts. The estimated net exposure for obligations under commercial transactions covered by these guarantees was $0.3 billion at June 30, 2014, which represents the total amount Generation could be required to fund based on June 30, 2014 market prices. | |||||||||||||||||||||
(d) Primarily reflects full and unconditional guarantees of $200 million Trust Preferred Securities of ComEd Financing III, which is a 100% owned finance subsidiary of ComEd. | |||||||||||||||||||||
(e) Primarily reflects full and unconditional guarantees of $178 million Trust Preferred Securities of PECO Trust III and IV, which are 100% owned finance subsidiaries of PECO. | |||||||||||||||||||||
(f) Primarily reflects full and unconditional guarantees of $250 million Trust Preferred Securities of BGE Capital Trust II, which is a 100% owned finance subsidiary of BGE. | |||||||||||||||||||||
(g) Represents the maximum amount that Generation would be required to pay for retrospective premiums in the event of nuclear disaster at any domestic site, including CENG sites, under the Secondary Financial Protection pool as required under the Price-Anderson Act as well as the current aggregate annual retrospective premium obligation that could be imposed by NEIL. See the Nuclear Insurance section within this note for additional details on Generation's nuclear insurance premiums. | |||||||||||||||||||||
(h) Represents the underwriters discount for Exelon's forward equity transaction. See Note 16 – Common Stock of the Combined Notes to Consolidated Financial Statements for further details of the equity securities offering. | |||||||||||||||||||||
Accrued environmental liabilities [Text Block] | ' | ||||||||||||||||||||
30-Jun-14 | Total Environmental Investigation and Remediation Reserve | Portion of Total Related to MGP Investigation and Remediation | |||||||||||||||||||
Exelon | $ | 323 | $ | 258 | |||||||||||||||||
Generation | 56 | 0 | |||||||||||||||||||
ComEd | 222 | 217 | |||||||||||||||||||
PECO | 44 | 41 | |||||||||||||||||||
BGE | 1 | 0 | |||||||||||||||||||
31-Dec-13 | Total Environmental Investigation and Remediation Reserve | Portion of Total Related to MGP Investigation and Remediation | |||||||||||||||||||
Exelon | $ | 338 | $ | 273 | |||||||||||||||||
Generation | 56 | 0 | |||||||||||||||||||
ComEd | 234 | 229 | |||||||||||||||||||
PECO | 47 | 44 | |||||||||||||||||||
BGE | 1 | 0 | |||||||||||||||||||
Other Purchase Obligation [Table Text Block] | ' | ||||||||||||||||||||
Expiration within | |||||||||||||||||||||
2019 | |||||||||||||||||||||
Total | 2014 | 2015 | 2016 | 2017 | 2018 | and beyond | |||||||||||||||
Exelon | $ | 568 | $ | 140 | $ | 171 | $ | 65 | $ | 55 | $ | 37 | $ | 100 | |||||||
Generation | 474 | 110 | 155 | 52 | 47 | 31 | 79 | ||||||||||||||
ComEd (a) | 53 | 16 | 8 | 5 | 5 | 5 | 14 | ||||||||||||||
PECO (a) | 28 | 12 | 4 | 3 | 1 | 1 | 7 | ||||||||||||||
BGE (a) | 12 | 1 | 4 | 5 | 2 | 0 | 0 | ||||||||||||||
(a) Purchase obligations include commitments related to smart meter installation. See Note 5 – Regulatory Matters for additional information. | |||||||||||||||||||||
Supplemental_Financial_Informa1
Supplemental Financial Information (Tables) | 6 Months Ended | ||||||||||||||||||
Jun. 30, 2014 | Jun. 30, 2013 | ||||||||||||||||||
Supplemental Financial Information Tables [Line Items] | ' | ' | |||||||||||||||||
Components of non-operating income and expenses | ' | ' | |||||||||||||||||
Three Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | __________ | |||||||||||||
Other, Net | (a) Includes investment income and realized gains and losses on sales of investments of the trust funds. | ||||||||||||||||||
Decommissioning-related activities: | (b) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of net income taxes related to all NDT fund activity for those units. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | ||||||||||||||||||
Net realized income on decommissioning trust funds (a) | (c) Relates to the cash return on BGE's rate stabilization deferral. See Note 5 - Regulatory Matters for additional information regarding the rate stabilization deferral. | ||||||||||||||||||
Regulatory agreement units | $ | 68 | $ | 68 | $ | 0 | $ | 0 | $ | 0 | |||||||||
Non-regulatory agreement units | 38 | 38 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on decommissioning trust funds | |||||||||||||||||||
Regulatory agreement units | 172 | 172 | 0 | 0 | 0 | ||||||||||||||
Non-regulatory agreement units | 128 | 128 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on pledged assets | |||||||||||||||||||
Zion Station decommissioning | 10 | 10 | 0 | 0 | 0 | ||||||||||||||
Regulatory offset to decommissioning trust fund-related | |||||||||||||||||||
activities (b) | -204 | -204 | 0 | 0 | 0 | ||||||||||||||
Total decommissioning-related activities | 212 | 212 | 0 | 0 | 0 | ||||||||||||||
Investment income (expense) | 7 | 7 | 0 | -1 | 2 | (c) | |||||||||||||
Long-term lease income | 10 | 0 | 0 | 0 | 0 | ||||||||||||||
Interest income (expense) related to uncertain income tax positions | -2 | 3 | 0 | 0 | 0 | ||||||||||||||
AFUDC - Equity | 5 | 0 | 0 | 1 | 3 | ||||||||||||||
Other | 11 | 6 | 5 | 1 | 0 | ||||||||||||||
Other, net | $ | 243 | $ | 228 | $ | 5 | $ | 1 | $ | 5 | |||||||||
Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Other, Net | |||||||||||||||||||
Decommissioning-related activities: | |||||||||||||||||||
Net realized income on decommissioning trust funds (a) | |||||||||||||||||||
Regulatory agreement units | $ | 111 | $ | 111 | $ | 0 | $ | 0 | $ | 0 | |||||||||
Non-regulatory agreement units | 63 | 63 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on decommissioning trust funds | |||||||||||||||||||
Regulatory agreement units | 234 | 234 | 0 | 0 | 0 | ||||||||||||||
Non-regulatory agreement units | 141 | 141 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on pledged assets | |||||||||||||||||||
Zion Station decommissioning | 20 | 20 | 0 | 0 | 0 | ||||||||||||||
Regulatory offset to decommissioning trust fund-related | |||||||||||||||||||
activities (b) | -299 | -299 | 0 | 0 | 0 | ||||||||||||||
Total decommissioning-related activities | 270 | 270 | 0 | 0 | 0 | ||||||||||||||
Investment income (expense) | 8 | 8 | 0 | -1 | 4 | (c) | |||||||||||||
Long-term lease income | 17 | 0 | 0 | 0 | 0 | ||||||||||||||
Interest income related to uncertain income tax positions | 7 | 17 | 0 | 0 | 0 | ||||||||||||||
AFUDC - Equity | 11 | 0 | 3 | 3 | 6 | ||||||||||||||
Other | 35 | 23 | 7 | 1 | -1 | ||||||||||||||
Other, net | $ | 348 | $ | 318 | $ | 10 | $ | 3 | $ | 9 | |||||||||
Three Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Other, Net | |||||||||||||||||||
Decommissioning-related activities: | |||||||||||||||||||
Net realized income on decommissioning trust funds (a) | |||||||||||||||||||
Regulatory agreement units | $ | 47 | $ | 47 | $ | 0 | $ | 0 | $ | 0 | |||||||||
Non-regulatory agreement units | 16 | 16 | 0 | 0 | 0 | ||||||||||||||
Net unrealized losses on decommissioning trust funds | |||||||||||||||||||
Regulatory agreement units | -102 | -102 | 0 | 0 | 0 | ||||||||||||||
Non-regulatory agreement units | -40 | -40 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on pledged assets | |||||||||||||||||||
Zion Station decommissioning | 2 | 2 | 0 | 0 | 0 | ||||||||||||||
Regulatory offset to decommissioning trust fund-related | |||||||||||||||||||
activities (b) | 40 | 40 | 0 | 0 | 0 | ||||||||||||||
Total decommissioning-related activities | -37 | -37 | 0 | 0 | 0 | ||||||||||||||
Investment income (expense) | 2 | 0 | 0 | -1 | 2 | (c) | |||||||||||||
Long-term lease income | 5 | 0 | 0 | 0 | 0 | ||||||||||||||
Interest expense related to uncertain income tax positions | -1 | -2 | 0 | 0 | 0 | ||||||||||||||
AFUDC - Equity | 5 | 0 | 3 | 1 | 2 | ||||||||||||||
Other | 9 | 6 | 3 | 0 | 0 | ||||||||||||||
Other, net | $ | -17 | $ | -33 | $ | 6 | $ | 0 | $ | 4 | |||||||||
Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Other, Net | |||||||||||||||||||
Decommissioning-related activities: | |||||||||||||||||||
Net realized income on decommissioning trust funds (a) | |||||||||||||||||||
Regulatory agreement units | $ | 84 | $ | 84 | $ | 0 | $ | 0 | $ | 0 | |||||||||
Non-regulatory agreement units | 30 | 30 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on decommissioning trust funds | |||||||||||||||||||
Regulatory agreement units | 92 | 92 | 0 | 0 | 0 | ||||||||||||||
Non-regulatory agreement units | 24 | 24 | 0 | 0 | 0 | ||||||||||||||
Net unrealized gains on pledged assets | |||||||||||||||||||
Zion Station decommissioning | 3 | 3 | 0 | 0 | 0 | ||||||||||||||
Regulatory offset to decommissioning trust fund-related | |||||||||||||||||||
activities (b) | -148 | -148 | 0 | 0 | 0 | ||||||||||||||
Total decommissioning-related activities | 85 | 85 | 0 | 0 | 0 | ||||||||||||||
Investment income (expense) | 5 | -1 | 0 | -1 | 5 | (c) | |||||||||||||
Long-term lease income | 13 | 0 | 0 | 0 | 0 | ||||||||||||||
Interest income related to uncertain income tax positions | 24 | 3 | 0 | 0 | 0 | ||||||||||||||
AFUDC - Equity | 12 | 0 | 6 | 2 | 4 | ||||||||||||||
Other | 16 | 8 | 5 | 2 | 0 | ||||||||||||||
Other, net | $ | 155 | $ | 95 | $ | 11 | $ | 3 | $ | 9 | |||||||||
__________ | |||||||||||||||||||
(a) Includes investment income and realized gains and losses on sales of investments of the trust funds. | |||||||||||||||||||
(b) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of net income taxes related to all NDT fund activity for those units. See Note 15 – Asset Retirement Obligations of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | |||||||||||||||||||
(c) Relates to the cash return on BGE's rate stabilization deferral. See Note 5 - Regulatory Matters for additional information regarding the rate stabilization deferral. | |||||||||||||||||||
Components of depreciation, amortization and accretion, and other, net | ' | ' | |||||||||||||||||
Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Depreciation, amortization, accretion and depletion | |||||||||||||||||||
Property, plant and equipment | $ | 1,015 | $ | 444 | $ | 290 | $ | 112 | $ | 142 | |||||||||
Regulatory assets | 117 | 0 | 57 | 5 | 55 | ||||||||||||||
Amortization of intangible assets, net | 22 | 22 | 0 | 0 | 0 | ||||||||||||||
Amortization of energy contract assets and liabilities (a) | 113 | 118 | 0 | 0 | 0 | ||||||||||||||
Nuclear fuel (b) | 499 | 499 | 0 | 0 | 0 | ||||||||||||||
ARO accretion (c) | 159 | 159 | 0 | 0 | 0 | ||||||||||||||
Total depreciation, amortization, accretion and depletion | $ | 1,925 | $ | 1,242 | $ | 347 | $ | 117 | $ | 197 | |||||||||
Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Depreciation, amortization, accretion and depletion | |||||||||||||||||||
Property, plant and equipment | $ | 942 | $ | 402 | $ | 275 | $ | 109 | $ | 128 | |||||||||
Regulatory assets | 112 | 0 | 62 | 4 | 47 | ||||||||||||||
Amortization of intangible assets, net | 22 | 22 | 0 | 0 | 0 | ||||||||||||||
Amortization of energy contract assets and liabilities (a) | 306 | 344 | 0 | 0 | 0 | ||||||||||||||
Nuclear fuel (b) | 454 | 454 | 0 | 0 | 0 | ||||||||||||||
ARO accretion (c) | 136 | 136 | 0 | 0 | 0 | ||||||||||||||
Total depreciation, amortization, accretion and depletion | $ | 1,972 | $ | 1,358 | $ | 337 | $ | 113 | $ | 175 | |||||||||
__________ | |||||||||||||||||||
Cash Flow Supplemental Disclosures | ' | ' | |||||||||||||||||
Six Months Ended June 30, 2014 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Other non-cash operating activities: | |||||||||||||||||||
Pension and non-pension postretirement benefit costs | $ | 315 | $ | 139 | $ | 96 | $ | 21 | $ | 33 | |||||||||
Loss from equity method investments | 20 | 20 | 0 | 0 | 0 | ||||||||||||||
Provision for uncollectible accounts | 59 | 8 | -8 | 28 | 30 | ||||||||||||||
Stock-based compensation costs | 68 | 0 | 0 | 0 | 0 | ||||||||||||||
Other decommissioning-related activity (a) | -85 | -85 | 0 | 0 | 0 | ||||||||||||||
Energy-related options (b) | 63 | 63 | 0 | 0 | 0 | ||||||||||||||
Amortization of regulatory asset related to debt costs | 5 | 0 | 4 | 1 | 0 | ||||||||||||||
Amortization of rate stabilization deferral | 33 | 0 | 0 | 0 | 33 | ||||||||||||||
Amortization of debt fair value adjustment | -26 | -12 | 0 | 0 | 0 | ||||||||||||||
Discrete impacts of EIMA (c) | 9 | 0 | 9 | 0 | 0 | ||||||||||||||
Amortization of debt costs | 19 | 6 | -3 | 1 | 1 | ||||||||||||||
Increase in inventory reserve | 3 | 3 | 1 | 0 | 0 | ||||||||||||||
Impairment of investments in direct financing leases (e) | 24 | 0 | 0 | 0 | 0 | ||||||||||||||
Impairment charges (f) | 86 | 86 | 0 | 0 | 0 | ||||||||||||||
Other | -26 | -19 | 0 | -1 | -8 | ||||||||||||||
Total other non-cash operating activities | $ | 567 | $ | 209 | $ | 99 | $ | 50 | $ | 89 | |||||||||
Changes in other assets and liabilities: | |||||||||||||||||||
Under/over-recovered energy and transmission costs | $ | 60 | $ | 0 | $ | 61 | $ | -6 | $ | 8 | |||||||||
Other regulatory assets and liabilities | -25 | 0 | -30 | -13 | -49 | ||||||||||||||
Other current assets | -157 | 13 | -5 | -89 | (h) | 51 | |||||||||||||
Other noncurrent assets and liabilities | -158 | -69 | 22 | -6 | -2 | ||||||||||||||
Total changes in other assets and liabilities | $ | -280 | $ | -56 | $ | 48 | $ | -114 | $ | 8 | |||||||||
Non-cash investing and financing activities: | |||||||||||||||||||
Fair value of net assets recorded upon CENG | |||||||||||||||||||
consolidation (j) | $ | 3,400 | $ | 3,400 | $ | 0 | $ | 0 | $ | 0 | |||||||||
Issuance of equity units (k) | 131 | 0 | 0 | 0 | 0 | ||||||||||||||
Uranium procurement (l) | 38 | 38 | 0 | 0 | 0 | ||||||||||||||
Indemnification of like-kind exchange position (m) | 0 | 0 | 2 | 0 | 0 | ||||||||||||||
Total non-cash investing and financing activities: | $ | 3,569 | $ | 3,438 | $ | 2 | $ | 0 | $ | 0 | |||||||||
Six Months Ended June 30, 2013 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Other non-cash operating activities: | |||||||||||||||||||
Pension and non-pension postretirement benefit costs | $ | 409 | $ | 173 | $ | 154 | $ | 21 | $ | 27 | |||||||||
Loss in equity method investments | 30 | 30 | 0 | 0 | 0 | ||||||||||||||
Provision for uncollectible accounts | 55 | 10 | 4 | 27 | 14 | ||||||||||||||
Stock-based compensation costs | 70 | 0 | 0 | 0 | 0 | ||||||||||||||
Other decommissioning-related activity (a) | -62 | -62 | 0 | 0 | 0 | ||||||||||||||
Energy-related options (b) | 65 | 65 | 0 | 0 | 0 | ||||||||||||||
Amortization of regulatory asset related to debt costs | 6 | 0 | 5 | 1 | 0 | ||||||||||||||
Amortization of rate stabilization deferral | 29 | 0 | 0 | 0 | 29 | ||||||||||||||
Amortization of debt fair value adjustment | -22 | -22 | 0 | 0 | 0 | ||||||||||||||
Discrete impacts from EIMA (c) | -126 | 0 | -126 | 0 | 0 | ||||||||||||||
Amortization of debt costs | 8 | 5 | 2 | 1 | 0 | ||||||||||||||
Merger integration costs (d) | -6 | 0 | 0 | 0 | -6 | ||||||||||||||
Impairment of investments in direct financing leases(e) | 14 | 0 | 0 | 0 | 0 | ||||||||||||||
Increase in inventory reserve | 13 | 13 | 0 | 0 | 0 | ||||||||||||||
Impairment charges (g) | 110 | 110 | 0 | 0 | 0 | ||||||||||||||
Other | -17 | -7 | 0 | 0 | -3 | ||||||||||||||
Total other non-cash operating activities | $ | 576 | $ | 315 | $ | 39 | $ | 50 | $ | 61 | |||||||||
Changes in other assets and liabilities: | |||||||||||||||||||
Under/over-recovered energy and transmission costs | $ | -24 | $ | 0 | $ | -61 | $ | 19 | $ | 18 | |||||||||
Other regulatory assets and liabilities | 3 | 0 | -28 | -5 | -82 | ||||||||||||||
Other current assets | -123 | -134 | 2 | -62 | (h) | 99 | |||||||||||||
Other noncurrent assets and liabilities | 277 | -34 | 304 | (i) | -1 | 28 | |||||||||||||
Total changes in other assets and liabilities | $ | 133 | $ | -168 | $ | 217 | $ | -49 | $ | 63 | |||||||||
Non-cash investing and financing activities: | |||||||||||||||||||
Consolidated VIE dividend to non-controlling interest | $ | 63 | 63 | 0 | 0 | 0 | |||||||||||||
Indemnification of like-kind exchange position (l) | 0 | 0 | 174 | 0 | 0 | ||||||||||||||
Total non-cash investing and financing activities | $ | 63 | $ | 63 | $ | 174 | $ | 0 | $ | 0 | |||||||||
_________ | |||||||||||||||||||
(a) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | |||||||||||||||||||
(b) Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations. | |||||||||||||||||||
(c) Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate tariff. See Note 5 – Regulatory Matters for more information. | |||||||||||||||||||
(d) Relates to integration costs to achieve distribution synergies related to the Constellation merger transaction. See Note 5 – Regulatory Matters for more information. | |||||||||||||||||||
(e) Relates to an other than temporary decline in the estimated residual value of Exelon's direct financing leases. See Note 7 – Impairment of Long-Lived Assets for more information. | |||||||||||||||||||
(f) Relates to the impairment of long-lived assets at Generation. See Note 7 – Impairment of Long-Lived Assets for additional information. | |||||||||||||||||||
(g) Relates to the cancellation of uprate projects at Generation. See Note 7 – Impairment of Long-Lived Assets for additional information. | |||||||||||||||||||
(h) Relates primarily to prepaid utility taxes. | |||||||||||||||||||
(i) Relates primarily to interest payable related to like-kind exchange tax position. See Note 11 – Income Taxes for discussion of the like-kind exchange tax position. | |||||||||||||||||||
(j) See Note 6 – Investment in Constellation Energy Nuclear Group, LLC for additional information. | |||||||||||||||||||
(k) Relates to the present value of the contract payments for the equity units issued by Exelon. See Note 16 – Common Stock for additional information. | |||||||||||||||||||
(l) Relates to the nuclear fuel procurement contract for the purchase of a fixed quantity of uranium, which was delivered to Generation on June 30, 2014. Generation is required to make payments starting June 30, 2016, with the final payment being due no later than June 30, 2018. | |||||||||||||||||||
(m) See Note 11 – Income Taxes for discussion of the like-kind exchange tax position. | |||||||||||||||||||
Supplemental Balance Sheet Disclosures | ' | ' | |||||||||||||||||
30-Jun-14 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Property, plant and equipment: | |||||||||||||||||||
Accumulated depreciation and amortization | $ | 14,369 | (a) | $ | 7,397 | (a) | $ | 3,325 | $ | 2,969 | $ | 2,781 | |||||||
Accounts receivable: | |||||||||||||||||||
Allowance for uncollectible accounts | 293 | 56 | 71 | 124 | 42 | ||||||||||||||
31-Dec-13 | Exelon | Generation | ComEd | PECO | BGE | ||||||||||||||
Property, plant and equipment: | |||||||||||||||||||
Accumulated depreciation and amortization | $ | 13,713 | (b) | $ | 7,034 | (b) | $ | 3,184 | $ | 2,935 | $ | 2,702 | |||||||
Accounts receivable: | |||||||||||||||||||
Allowance for uncollectible accounts | 272 | 57 | 62 | 107 | 46 | ||||||||||||||
___________ | |||||||||||||||||||
(a) Includes accumulated amortization of nuclear fuel in the reactor core of $2,411 million. | |||||||||||||||||||
(b) Includes accumulated amortization of nuclear fuel in the reactor core of $2,371 million. | |||||||||||||||||||
Accumulated Other Comprehensive Income Net Of Taxes | ' | ' | |||||||||||||||||
For The Six Months Ended June 30, 2014 | Gains and (Losses) on Cash Flow Hedges | Unrealized Gains and (Losses) on Marketable Securities | Pension and Non-Pension Postretirement Benefit Plan Items | Foreign Currency Items | AOCI of Equity Investments | Total | |||||||||||||
Exelon (a) | |||||||||||||||||||
Beginning balance | $ | 120 | $ | 2 | $ | -2,260 | $ | -10 | $ | 108 | $ | -2,040 | |||||||
OCI before reclassifications | -11 | 1 | 246 | -1 | 11 | 246 | |||||||||||||
Amounts reclassified from AOCI (b) | -62 | 0 | 66 | 0 | -116 | -112 | |||||||||||||
Net current-period OCI | -73 | 1 | 312 | -1 | -105 | 134 | |||||||||||||
Ending balance | $ | 47 | $ | 3 | $ | -1,948 | $ | -11 | $ | 3 | $ | -1,906 | |||||||
Generation (a) | |||||||||||||||||||
Beginning balance | $ | 114 | $ | 2 | $ | 0 | $ | -10 | $ | 108 | $ | 214 | |||||||
OCI before reclassifications | -8 | -1 | 0 | -1 | 11 | 1 | |||||||||||||
Amounts reclassified from AOCI (b) | -62 | 0 | 0 | 0 | -116 | -178 | |||||||||||||
Net current-period OCI | -70 | -1 | 0 | -1 | -105 | -177 | |||||||||||||
Ending balance | $ | 44 | $ | 1 | $ | 0 | $ | -11 | $ | 3 | $ | 37 | |||||||
ComEd (a) | |||||||||||||||||||
PECO (a) | |||||||||||||||||||
Beginning balance | $ | 0 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | $ | 1 | |||||||
OCI before reclassifications | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||
Net current-period OCI | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||
Ending balance | $ | 0 | $ | 1 | $ | 0 | $ | 0 | $ | 0 | $ | 1 | |||||||
BGE (a) | |||||||||||||||||||
(a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. | |||||||||||||||||||
(b) See tables following changes in accumulated other comprehensive income tables for details about these reclassifications. |
Segment_Information_Tables
Segment Information (Tables) | 6 Months Ended | ||||||||||||||||||||||
Jun. 30, 2014 | |||||||||||||||||||||||
Segment Reporting Information [Line Items] | ' | ||||||||||||||||||||||
Analysis and reconciliation of reportable segment information | ' | ||||||||||||||||||||||
Three Months Ended June 30, 2014 and 2013 | |||||||||||||||||||||||
__________ | |||||||||||||||||||||||
(a) Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the three months ended June 30, 2014 include revenue from sales to PECO of $49 million and sales to BGE of $87 million in the Mid-Atlantic region, and sales to ComEd of $65 million in the Midwest region. For the three months ended June 30, 2013 intersegment revenues for Generation include revenue from sales to PECO of $97 million and sales to BGE of $99 million in the Mid-Atlantic region, sales to ComEd of $121 million in the Midwest region, and $10 million related to the unrealized mark-to-market gains related to the ComEd swap, which eliminate upon consolidation. | |||||||||||||||||||||||
(b) Other primarily includes Exelon's corporate operations, shared service entities and other financing and investment activities. | |||||||||||||||||||||||
(c) For the three months ended June 30, 2014 and 2013, utility taxes of $21 million and $18 million, respectively, are included in revenues and expenses for Generation. For the three months ended June 30, 2014 and 2013, utility taxes of $56 million and $56 million, respectively, are included in revenues and expenses for ComEd. For the three months ended June 30, 2014 and 2013, utility taxes of $30 million and $31 million, respectively, are included in revenues and expenses for PECO. For the three months ended June 30, 2014 and 2013, utility taxes of $19 million and $19 million, respectively, are included in revenues and expenses for BGE. | |||||||||||||||||||||||
(d) Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with Generation's sale of certain products and services by and between Exelon's segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||||||||||||
Six Months Ended June 30, 2014 and 2013 | |||||||||||||||||||||||
Intersegment Eliminations | |||||||||||||||||||||||
Generation (a)(b) | ComEd | PECO | BGE | Other (c) | Exelon | ||||||||||||||||||
Total revenues (d): | |||||||||||||||||||||||
2014 | $ | 8,179 | $ | 2,262 | $ | 1,649 | $ | 1,707 | $ | 619 | $ | -1,155 | $ | 13,261 | |||||||||
2013 | 7,603 | 2,239 | 1,567 | 1,533 | 615 | -1,334 | 12,223 | ||||||||||||||||
Intersegment revenues (e): | |||||||||||||||||||||||
2014 | $ | 517 | $ | 1 | $ | 1 | $ | 18 | $ | 618 | $ | -1,155 | $ | 0 | |||||||||
2013 | 710 | 1 | 0 | 8 | 615 | -1,334 | 0 | ||||||||||||||||
Net income (loss): | |||||||||||||||||||||||
2014 | $ | 188 | $ | 209 | $ | 173 | $ | 106 | $ | -25 | $ | 0 | $ | 651 | |||||||||
2013 | 310 | 14 | 200 | 106 | -132 | 0 | 498 | ||||||||||||||||
__________ | |||||||||||||||||||||||
(a) Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the six months ended June 30, 2014 include revenue from sales to PECO of $ 137 million and sales to BGE of $ 207 million in the Mid-Atlantic region, and sales to ComEd of $ 173 million in the Midwest region. For the six months ended June 30, 2013 intersegment revenues for Generation include revenue from sales to PECO of $238 million in the Mid-Atlantic region and sales to BGE of $212 million in the Mid-Atlantic region, and sales to ComEd of $266 million in the Midwest region, net of $7 million related to the unrealized mark-to-market losses related to the ComEd swap, which eliminate upon consolidation. | |||||||||||||||||||||||
(b) Amounts include activity recorded at CENG from April 1, 2014, the date of integration, through June 30, 2014. | |||||||||||||||||||||||
(c) Other primarily includes Exelon's corporate operations, shared service entities and other financing and investment activities. | |||||||||||||||||||||||
(d) For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. | |||||||||||||||||||||||
(e) Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with the Generation's sale of certain products and services by and between Exelon's segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations and Comprehensive Income. | |||||||||||||||||||||||
Exelon Generation Co L L C [Member] | ' | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ' | ||||||||||||||||||||||
Analysis and reconciliation of reportable segment revenues net of purchased power and fuel expense for Generation | ' | ||||||||||||||||||||||
Three Months Ended June 30, 2014 and 2013 | |||||||||||||||||||||||
Generation total revenues net of purchased power and fuel expense (three months ended): | |||||||||||||||||||||||
2014 | 2013 | ||||||||||||||||||||||
RNF from external customers (a) | Intersegment RNF | Total RNF | RNF from external customers (a) | Intersegment RNF | Total RNF | ||||||||||||||||||
Mid-Atlantic | $ | 906 | $ | 14 | $ | 920 | $ | 770 | $ | -2 | $ | 768 | |||||||||||
Midwest | 604 | 1 | 605 | 687 | -3 | 684 | |||||||||||||||||
New England | 88 | -24 | 64 | 85 | -35 | 50 | |||||||||||||||||
New York | 142 | 6 | 148 | 0 | 14 | 14 | |||||||||||||||||
ERCOT | 117 | -58 | 59 | 143 | -31 | 112 | |||||||||||||||||
Other Regions (b) | 157 | -82 | 75 | 111 | -52 | 59 | |||||||||||||||||
Total Revenues net of purchased power and fuel expense for Reportable Segments | 2,014 | -143 | 1,871 | 1,796 | -109 | 1,687 | |||||||||||||||||
Other (c) | -60 | 143 | 83 | 328 | 109 | 437 | |||||||||||||||||
Total Generation Revenues net of purchased power and fuel expense | $ | 1,954 | $ | 0 | $ | 1,954 | $ | 2,124 | $ | - | $ | 2,124 | |||||||||||
(a) Includes purchases and sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||||||||||||||||
(b) Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||||||||||||||||
(c) Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $50 million and $167 million for the three months ended June 30, 2014 and 2013, respectively, and the elimination of intersegment revenues. | |||||||||||||||||||||||
Six Months Ended June 30, 2014 and 2013 | |||||||||||||||||||||||
Generation total revenues net of purchased power and fuel expense (six months ended): | |||||||||||||||||||||||
2014 | 2013 | ||||||||||||||||||||||
RNF from external customers (a) | Intersegment RNF | Total RNF | RNF from external customers (a) | Intersegment RNF | Total RNF | ||||||||||||||||||
Mid-Atlantic (b) | $ | 1,690 | $ | -75 | $ | 1,615 | $ | 1,622 | $ | -10 | $ | 1,612 | |||||||||||
Midwest | 1,134 | 27 | 1,161 | 1,397 | 4 | 1,401 | |||||||||||||||||
New England | 242 | -42 | 200 | 103 | -23 | 80 | |||||||||||||||||
New York (b) | 113 | 14 | 127 | -16 | 8 | -8 | |||||||||||||||||
ERCOT | 272 | -130 | 142 | 255 | -42 | 213 | |||||||||||||||||
Other Regions (c) | 307 | -127 | 180 | 122 | -17 | 105 | |||||||||||||||||
Total Revenues net of purchased power and fuel expense for Reportable Segments | 3,758 | -333 | 3,425 | 3,483 | -80 | 3,403 | |||||||||||||||||
Other (d) | -770 | 333 | -437 | 6 | 80 | 86 | |||||||||||||||||
Total Generation Revenues net of purchased power and fuel expense | $ | 2,988 | $ | 0 | $ | 2,988 | $ | 3,489 | $ | 0 | $ | 3,489 | |||||||||||
(a) Includes purchases and sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||||||||||||||||
(b) Amounts include activity recorded at CENG from April 1, 2014, the date of integration, through June 30, 2014. | |||||||||||||||||||||||
(c) Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||||||||||||||||
(d) Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $92 million and $341 million, for the six months ended June 30, 2014 and 2013, respectively. |
Related_Party_Transactions_Tab
Related Party Transactions (Tables) | 6 Months Ended | ||||||
Jun. 30, 2014 | |||||||
Related Party Transaction [Line Items] | ' | ||||||
Schedule Of Income Loss From Equity Method Investments [Text Block] | ' | ||||||
Three Months | Three Months | ||||||
Ended March 31, | Ended March 31, | ||||||
2014 | 2013 | ||||||
Equity investment income | $ | -2 | $ | 15 | |||
Amortization of basis difference in CENG | -17 | -27 | |||||
Total equity in earnings - CENG | $ | -19 | $ | -12 | |||
Exelon Generation Co L L C [Member] | ' | ||||||
Related Party Transaction [Line Items] | ' | ||||||
Schedule Of Income Loss From Equity Method Investments [Text Block] | ' | ||||||
Three Months | Three Months | ||||||
Ended March 31, | Ended March 31, | ||||||
2014 | 2013 | ||||||
Equity investment income | $ | -2 | $ | 15 | |||
Amortization of basis difference in CENG | -17 | -27 | |||||
Total equity in earnings - CENG | $ | -19 | $ | -12 |
Significant_Accounting_Policie
Significant Accounting Policies (Details) (USD $) | 3 Months Ended | 6 Months Ended | |||||
Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | 15-May-14 | Dec. 31, 2013 | |
Capitalized Interest And AFUDC [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Total interest incurred | ' | ' | ' | ' | $8,000,000 | ' | ' |
Error Corrections And Prior Period Adjustments Restatement [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Operating and maintenance | 2,166,000,000 | 1,000,000 | 1,892,000,000 | 4,024,000,000 | 3,656,000,000 | ' | ' |
Interest Expense | 228,000,000 | ' | 246,000,000 | 445,000,000 | 863,000,000 | ' | ' |
Consolidation Percentages Detail Tagging [Abstract] | ' | ' | ' | ' | ' | ' | ' |
Equity Method Investment Ownership Percentage | ' | ' | ' | ' | ' | 67.00% | ' |
Third Party interest in ComEd | 1,183,000,000 | ' | ' | 1,183,000,000 | ' | ' | 15,000,000 |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ' | ' |
Capitalized Interest And AFUDC [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Total interest incurred | ' | ' | ' | ' | 8,000,000 | ' | ' |
Error Corrections And Prior Period Adjustments Restatement [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Operating and maintenance | 1,255,000,000 | ' | 1,041,000,000 | 2,194,000,000 | 2,007,000,000 | ' | ' |
Interest Expense | 74,000,000 | ' | 77,000,000 | 147,000,000 | 142,000,000 | ' | ' |
Consolidation Percentages Detail Tagging [Abstract] | ' | ' | ' | ' | ' | ' | ' |
Equity Method Investment Ownership Percentage | 50.01% | ' | ' | 50.01% | ' | ' | ' |
Third Party interest in ComEd | 1,185,000,000 | ' | ' | 1,185,000,000 | ' | ' | 17,000,000 |
Nuclear Fuel [Abstract] | ' | ' | ' | ' | ' | ' | ' |
Cost of spent nuclear fuel disposal per kWh of net nuclear generation | 0.001 | ' | ' | 0.001 | ' | ' | ' |
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ' | ' |
Error Corrections And Prior Period Adjustments Restatement [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Electrical transmission and distribution revenue | 1,128,000,000 | ' | 1,080,000,000 | 2,261,000,000 | 2,238,000,000 | ' | ' |
Operating and maintenance | 316,000,000 | ' | 319,000,000 | 603,000,000 | 611,000,000 | ' | ' |
Interest Expense | 76,000,000 | ' | 72,000,000 | 153,000,000 | 422,000,000 | ' | ' |
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ' | ' |
Error Corrections And Prior Period Adjustments Restatement [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Operating and maintenance | 160,000,000 | ' | 155,000,000 | 416,000,000 | 319,000,000 | ' | ' |
Interest Expense | 25,000,000 | ' | 25,000,000 | 50,000,000 | 51,000,000 | ' | ' |
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ' | ' |
Error Corrections And Prior Period Adjustments Restatement [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Operating and maintenance | 163,000,000 | ' | 139,000,000 | 326,000,000 | 266,000,000 | ' | ' |
Interest Expense | $23,000,000 | ' | $28,000,000 | $47,000,000 | $58,000,000 | ' | ' |
Basis_of_Presentation_Details
Basis of Presentation (Details) (USD $) | 3 Months Ended | 6 Months Ended | |||
In Millions, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 |
Depreciation and amortization | $590 | ' | $533 | $1,154 | $1,076 |
Operating and maintenance | 2,166 | 1 | 1,892 | 4,024 | 3,656 |
Capital expenditures | ' | ' | ' | 2,501 | 2,518 |
Income Tax Expense (Benefit) | 277 | ' | 239 | 224 | 294 |
Interest Expense | 228 | ' | 246 | 445 | 863 |
Total interest expense to affiliates, net | 10 | ' | 6 | 20 | 13 |
Equity Method Investment Summarized Financial Information[Abstract] | ' | ' | ' | ' | ' |
Related Party Purchase Of Nuclear Output By Third Party Percentage | ' | ' | ' | 49.99% | ' |
Scenario Adjustment [Member] | ' | ' | ' | ' | ' |
Purchased power and fuel from affiliate | ' | ' | ' | 605 | ' |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' |
Depreciation and amortization | 254 | ' | 210 | 466 | 424 |
Operating and maintenance | 1,255 | ' | 1,041 | 2,194 | 2,007 |
Capital expenditures | ' | ' | ' | 1,103 | 1,277 |
Income Tax Expense (Benefit) | 199 | ' | 149 | -1 | 148 |
Interest Expense | 74 | ' | 77 | 147 | 142 |
Purchased power and fuel from affiliate | 69 | ' | 290 | 417 | 611 |
Total interest expense to affiliates, net | -12 | ' | -16 | -25 | -34 |
Equity Method Investment Summarized Financial Information[Abstract] | ' | ' | ' | ' | ' |
Related Party Purchase Of Nuclear Output By Third Party Percentage | ' | ' | ' | 49.99% | ' |
Exelon Generation Co L L C [Member] | Scenario Adjustment [Member] | ' | ' | ' | ' | ' |
Purchased power and fuel from affiliate | ' | ' | ' | 611 | ' |
Total interest expense to affiliates, net | ' | ' | ' | 34 | ' |
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' |
Depreciation and amortization | 174 | ' | 170 | 347 | 337 |
Operating and maintenance | 316 | ' | 319 | 603 | 611 |
Capital expenditures | ' | ' | ' | 747 | 711 |
Income Tax Expense (Benefit) | 72 | ' | 66 | 137 | 8 |
Interest Expense | 76 | ' | 72 | 153 | 422 |
Total interest expense to affiliates, net | 4 | ' | 4 | 7 | 7 |
PECO Energy Co [Member] | ' | ' | ' | ' | ' |
Depreciation and amortization | 59 | ' | 56 | 117 | 113 |
Operating and maintenance | 160 | ' | 155 | 416 | 319 |
Capital expenditures | ' | ' | ' | 308 | 254 |
Income Tax Expense (Benefit) | 23 | ' | 32 | 57 | 87 |
Interest Expense | 25 | ' | 25 | 50 | 51 |
Total interest expense to affiliates, net | 3 | ' | 3 | 6 | 6 |
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' |
Depreciation and amortization | 89 | ' | 82 | 197 | 175 |
Operating and maintenance | 163 | ' | 139 | 326 | 266 |
Capital expenditures | ' | ' | ' | 313 | 264 |
Income Tax Expense (Benefit) | 14 | ' | 16 | 72 | 70 |
Interest Expense | 23 | ' | 28 | 47 | 58 |
Purchased power and fuel from affiliate | 85 | ' | 99 | 205 | 212 |
Total interest expense to affiliates, net | -4 | ' | -4 | -8 | -8 |
Baltimore Gas and Electric Company [Member] | Scenario Adjustment [Member] | ' | ' | ' | ' | ' |
Total interest expense to affiliates, net | ' | ' | ' | $8 | ' |
Variable_Interest_Entities_Det
Variable Interest Entities (Details) (USD $) | 6 Months Ended | 12 Months Ended | 1 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | ||||||||||
VIE | VIE | Commercial Agreement Variable Interest Entities [Member] | Commercial Agreement Variable Interest Entities [Member] | Equity Method Investment Variable Interest Entities [Member] | Equity Method Investment Variable Interest Entities [Member] | Investments [Member] | Investments [Member] | Investments [Member] | Investments [Member] | Investments [Member] | Contract Intangible Asset [Member] | Contract Intangible Asset [Member] | Contract Intangible Asset [Member] | Contract Intangible Asset [Member] | Payment Guarantee [Member] | Payment Guarantee [Member] | Payment Guarantee [Member] | Payment Guarantee [Member] | Net assets pledged for Zion Station decommissioning | Net assets pledged for Zion Station decommissioning | Net assets pledged for Zion Station decommissioning | Net assets pledged for Zion Station decommissioning | Net assets pledged for Zion Station decommissioning | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | |||||||||||||
Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | CENGMember [Member] | CENGMember [Member] | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | RSB Bond Co LLC [Member] | RSB Bond Co LLC [Member] | RSB Bond Co LLC [Member] | RSB Bond Co LLC [Member] | RSB Bond Co LLC [Member] | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember | |||||||||||||||||||||||||||||||||||||||||||
Commercial Agreement Variable Interest Entities [Member] | Equity Method Investment Variable Interest Entities [Member] | Equity Method Investment Variable Interest Entities [Member] | Commercial Agreement Variable Interest Entities [Member] | Commercial Agreement Variable Interest Entities [Member] | Equity Method Investment Variable Interest Entities [Member] | Equity Method Investment Variable Interest Entities [Member] | Commercial Agreement Variable Interest Entities [Member] | Commercial Agreement Variable Interest Entities [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Consolidated Variable Interest Entities Disclosure [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Current Assets | $991 | $484 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $956 | $446 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $28 | $28 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Non Current Assets | 7,426 | 1,905 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 7,407 | 1,884 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3 | ' | ' | ' | ' | ' | ' | ' | 3 | ' | ' | ||||||||||
Total Assets | 8,417 | 2,389 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8,363 | 2,330 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 31 | 31 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Current Liabilities | 815 | 566 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 732 | 481 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 76 | 74 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Non Current Liabilites | 2,911 | 774 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,738 | 562 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 158 | 195 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Total Liabilities | 3,726 | 1,340 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,470 | 1,043 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 234 | 269 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Deferred tax assets | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Remittance of payments received from customers for rate stabilization to BondCo. | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 21 | 17 | 42 | 39 | ' | ' | ' | ||||||||||
Parental guarantee provided | 75 | 75 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 7 | 7 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Severance Costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 6 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
RestructuringAndRelatedCostExpectedCostRemaining | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Other long term liabilities | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 113 | 113 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Number of Variable Interest Entities not consolidated by equity holders | 5 | 4 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Number Of Variable Interest Entities Consolidated | 8 | 8 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Variable Interest Entity Nonconsolidated Carrying Amount Assets Liabilities And Other Information [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Total assets | 444 | [1] | 460 | [1] | ' | ' | 119 | [1] | 128 | [1] | 325 | [1] | 332 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||
Total liabilities | 122 | [1] | 140 | [1] | ' | ' | 2 | [1] | 17 | [1] | 120 | [1] | 123 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||
Our ownership interest | 63 | [1] | 86 | [1] | ' | ' | ' | ' | 63 | [1] | 86 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||
Other ownership interests | 259 | [1] | 234 | [1] | ' | ' | 117 | [1] | 111 | [1] | 142 | [1] | 123 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||
Our maximum exposure to loss | ' | ' | ' | ' | ' | ' | ' | ' | 73 | 74 | 7 | 73 | 67 | 9 | 9 | 9 | 9 | 3 | 5 | 3 | 5 | 45 | [2] | ' | 44 | [2] | 45 | [2] | 44 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||
Variable Interest Entity Nonconsolidated Carrying Amount Assets Liabilities And Other Information Footnotes [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Gross pledged assets | 486 | 614 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 402 | 458 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Pledged assets liabilities offset | 443 | 414 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 385 | 414 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Statement of Financial Position [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Restricted Cash and Cash Equivalents, Current | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 75 | 80 | ' | 88 | 71 | ' | ' | ' | ' | 47 | 52 | ' | 4 | 2 | ' | ' | 2 | 2 | ' | ' | 58 | 28 | ' | ' | ' | ' | ' | ' | ' | 28 | 28 | ||||||||||
Accounts Receivable, Net, Current | 2,973 | 2,981 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 296 | 260 | ' | 1,733 | 1,689 | ' | ' | ' | ' | 296 | 260 | ' | 516 | 451 | ' | ' | 304 | 360 | ' | ' | 419 | 480 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Cash and Cash Equivalents, at Carrying Value | 1,362 | 1,609 | 991 | 1,486 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 126 | 62 | ' | 305 | 1,258 | 222 | 671 | ' | ' | 126 | 62 | ' | 38 | 36 | 93 | 144 | 93 | 217 | 56 | 362 | 15 | 31 | 457 | 89 | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Other Receivables | 1,005 | 1,175 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 133 | ' | ' | 441 | 353 | ' | ' | ' | ' | 133 | ' | ' | 428 | 584 | ' | ' | 107 | 107 | ' | ' | 102 | 114 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Energy Related Inventory, Other Fossil Fuel | 409 | 276 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 103 | 2 | ' | 328 | 164 | ' | ' | ' | ' | 103 | 2 | ' | ' | ' | ' | ' | 34 | 60 | ' | ' | 48 | 53 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Inventory, Raw Materials and Supplies | 1,041 | 829 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 165 | ' | ' | 872 | 671 | ' | ' | ' | ' | 165 | ' | ' | ' | ' | ' | ' | 25 | 21 | ' | ' | 33 | 28 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Other Assets Current | 775 | 666 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 61 | 53 | ' | 524 | 505 | ' | ' | ' | ' | 54 | 42 | ' | 32 | 29 | ' | ' | 51 | 36 | ' | ' | 8 | 7 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Assets, Current | 9,823 | 10,137 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 959 | 457 | ' | 5,727 | 6,439 | ' | ' | ' | ' | 924 | 418 | ' | 1,434 | 1,540 | ' | ' | 803 | 906 | ' | ' | 916 | 1,011 | ' | ' | ' | ' | ' | ' | ' | 28 | 28 | ||||||||||
Property, plant and equipment, net | 51,747 | 47,330 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4,603 | 1,171 | ' | 23,743 | 20,111 | ' | ' | ' | ' | 4,603 | 1,171 | ' | 15,121 | 14,666 | ' | ' | 6,545 | 6,384 | ' | ' | 6,030 | 5,864 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Decommissioning Fund Investments | 10,437 | 8,071 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,030 | ' | ' | 10,437 | 8,071 | ' | ' | ' | ' | 2,030 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Goodwill | 2,674 | 2,625 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 48 | ' | ' | 49 | 0 | ' | ' | ' | ' | 48 | ' | ' | 2,625 | 2,625 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Other Assets Noncurrent | 1,092 | 964 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 125 | 127 | ' | 687 | 645 | ' | ' | ' | ' | 106 | 106 | ' | 275 | 291 | ' | ' | 38 | 38 | ' | ' | 24 | 26 | ' | ' | ' | ' | ' | ' | ' | 3 | 3 | ||||||||||
Total Deferred Debits And Other Assets | 22,086 | 22,457 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,298 | ' | ' | ' | 6,806 | ' | ' | 14,952 | 14,682 | ' | ' | ' | ' | 6,787 | 1,277 | ' | 7,989 | 7,912 | ' | ' | 2,413 | 2,327 | ' | ' | 931 | 986 | ' | ' | ' | ' | ' | ' | ' | 3 | 3 | ||||||||||
Assets | 83,656 | 79,924 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 7,765 | 1,755 | ' | 44,422 | 41,232 | ' | ' | ' | ' | 7,711 | 1,695 | ' | 24,544 | 24,118 | ' | ' | 9,761 | 9,617 | ' | ' | 7,877 | 7,861 | ' | ' | ' | ' | ' | ' | ' | 31 | 31 | ||||||||||
Short-term Borrowings | 621 | 341 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 40 | ' | ' | 53 | 22 | ' | ' | ' | ' | 40 | 5 | ' | 498 | 184 | ' | ' | ' | ' | ' | ' | 70 | 135 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Long-term Debt and Capital Lease Obligations, Current | 2,047 | 1,509 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 84 | ' | 85 | 52 | 561 | ' | ' | ' | ' | 5 | ' | ' | 260 | 617 | ' | ' | 250 | 250 | ' | ' | 72 | 70 | ' | ' | ' | ' | ' | ' | ' | 72 | 70 | ||||||||||
Accounts Payable, Current | 2,633 | 2,484 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 243 | 170 | ' | 1,508 | 1,322 | ' | ' | ' | ' | 243 | 170 | ' | 505 | 449 | ' | ' | 298 | 285 | ' | ' | 205 | 270 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Derivative Liabilities Current | 228 | 159 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 24 | 29 | ' | 215 | 142 | ' | ' | ' | ' | 24 | ' | ' | 13 | 17 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Energy Marketing Contract Liabilities, Current | 239 | 261 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 233 | 249 | ' | ' | ' | ' | 12 | 29 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Other Liabilities Current | 994 | 858 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 165 | 5 | ' | 473 | 389 | ' | ' | ' | ' | 165 | 5 | ' | 82 | 72 | ' | ' | 32 | 37 | ' | ' | 61 | 35 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Liabilities, Current | 8,567 | 7,728 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 657 | 320 | ' | 4,215 | 3,867 | ' | ' | ' | ' | 575 | 236 | ' | 2,080 | 2,048 | ' | ' | 922 | 891 | ' | ' | 747 | 827 | ' | ' | ' | ' | ' | ' | ' | 76 | 74 | ||||||||||
Long-term Debt, Excluding Current Maturities | 18,133 | 17,623 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 258 | 298 | ' | 5,944 | 5,645 | ' | ' | ' | ' | 84 | 86 | ' | 5,448 | 5,058 | ' | ' | 1,947 | 1,947 | ' | ' | 1,904 | 1,941 | ' | ' | ' | ' | ' | ' | ' | 158 | 195 | ||||||||||
Asset Retirement Obligations, Noncurrent | 7,054 | 5,194 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,731 | ' | ' | 6,907 | 5,047 | ' | ' | ' | ' | 1,731 | ' | ' | 100 | 99 | ' | ' | 30 | 29 | ' | ' | 17 | 19 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Defined Benefit Pension Plan, Liabilities, Noncurrent | 1,804 | 1,876 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 133 | ' | ' | 125 | ' | ' | ' | ' | ' | 133 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Energy Marketing Contract Liabilities, Noncurrent | 260 | 266 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 18 | ' | ' | ' | ' | 12 | 12 | 5 | 260 | ' | 266 | ' | ' | ' | 18 | 12 | 5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Other Liabilities Noncurrent | 2,133 | 2,540 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 178 | 28 | ' | 761 | 811 | ' | ' | ' | ' | 178 | 28 | ' | 841 | 994 | ' | ' | 92 | 99 | ' | ' | 65 | 67 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Total Deferred Credits And Other Liabilities | 32,079 | 30,985 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,454 | 338 | ' | 19,665 | 17,455 | ' | ' | ' | ' | 2,280 | 126 | ' | 9,112 | 9,278 | ' | ' | 3,630 | 3,530 | ' | ' | 2,313 | 2,280 | ' | ' | ' | ' | ' | ' | ' | 158 | 195 | ||||||||||
Liabilities | 59,427 | 56,984 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,111 | 658 | ' | 30,772 | 28,490 | ' | ' | ' | ' | 2,855 | 362 | ' | 16,846 | 16,590 | ' | ' | 6,683 | 6,552 | ' | ' | 5,222 | 5,306 | ' | ' | ' | ' | ' | ' | ' | 234 | 269 | ||||||||||
Accrued Liabilities, Current | 1,382 | 1,633 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 89 | 26 | ' | 819 | 976 | ' | ' | ' | ' | 86 | 22 | ' | 274 | 307 | ' | ' | 167 | 106 | ' | ' | 95 | 111 | ' | ' | ' | ' | ' | ' | ' | 4 | 4 | ||||||||||
Other Postretirement Defined Benefit Plan, Liabilities, Noncurrent | $1,419 | $2,190 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $136 | ' | ' | $941 | $850 | ' | ' | ' | ' | $136 | ' | ' | $284 | $381 | ' | ' | $292 | $286 | ' | ' | $215 | $217 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
[1] | These items represent amounts on the unconsolidated VIE balance sheets, not on Exelonbs or Generationbs Consolidated Balance Sheets. These items are included to provide information regarding the relative size of the unconsolidated VIEs. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[2] | These items represent amounts on Exelonbs and Generationbs Consolidated Balance Sheets related to the asset sale agreement with ZionSolutions, LLC. The net assets pledged for Zion Station decommissioning includes gross pledged assets of $402 million and $458 million as of June 30, 2014 and December 31, 2013, respectively; offset by payables to ZionSolutions LLC of $357 million and $414 million as of June 30, 2014 and December 31, 2013, respectively. These items are included to provide information regarding the relative size of the ZionSolutions LLC unconsolidated VIE. |
Regulatory_Matters_Details
Regulatory Matters (Details) (USD $) | 6 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Sep. 30, 2008 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 29, 2012 | Dec. 31, 2010 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 01, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Sep. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | |||||||||||||||||||||||||||||||
Nuclear Decommissioning [Member] | Nuclear Decommissioning [Member] | Removal Costs [Member] | Removal Costs [Member] | Energy Efficiency Demand Response Programs [Member] | Energy Efficiency Demand Response Programs [Member] | Electric Transmission And Distribution Tax Repairs [Member] | Electric Transmission And Distribution Tax Repairs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over-Recovered Universal Service Fund Costs [Member] | Over-Recovered Universal Service Fund Costs [Member] | Revenue subject to refund [Member] | Revenue subject to refund [Member] | Over Recovered Decoupling Revenue [Member] | Over Recovered Decoupling Revenue [Member] | Gas Distribution Tax Repairs [Member] | Gas Distribution Tax Repairs [Member] | Regulatory Liabilities Other [Member] | Regulatory Liabilities Other [Member] | Dlc Program Cost [Member] | Dlc Program Cost [Member] | Energy Efficiency Phase [Member] | Energy Efficiency Phase [Member] | Other Postretirement Benefits [Member] | Other Postretirement Benefits [Member] | Other Postretirement Benefits [Member] | Other Postretirement Benefits [Member] | Deferred Income Taxes [Member] | Deferred Income Taxes [Member] | AMI Expenses [Member] | AMI Expenses [Member] | AMI Meter Events [Member] | Under Recovered Distribution Service Costs [Member] | Under Recovered Distribution Service Costs [Member] | Debt Costs [Member] | Debt Costs [Member] | Fair Value Of Long Term Debt [Member] | Fair Value Of Long Term Debt [Member] | Fair Value Of Supply Contract [Member] | Fair Value Of Supply Contract [Member] | Severance [Member] | Severance [Member] | Asset Retirement Obligations [Member] | Asset Retirement Obligations [Member] | MGP Remediation Costs [Member] | MGP Remediation Costs [Member] | RTO Startup Costs [Member] | RTO Startup Costs [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Renewable Energy And Associated REC [Member] | Renewable Energy And Associated REC [Member] | Under Recovered Energy And Transmission Costs [Member] | Under Recovered Energy And Transmission Costs [Member] | Deferred Storm Costs [Member] | Deferred Storm Costs [Member] | Electric Generation Related Regulatory Asset [Member] | Electric Generation Related Regulatory Asset [Member] | Rate Stabilization Deferral [Member] | Rate Stabilization Deferral [Member] | Energy Efficiency And Demand Response Programs [Member] | Energy Efficiency And Demand Response Programs [Member] | Merger Integration Costs [Member] | Merger Integration Costs [Member] | Regulatory Assets [Member] | Regulatory Assets [Member] | Conservative Voltage Reduction Program [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | ||||||||||||||||||||||||||||||||||
Regulatory Liabilities Other [Member] | SmartMeters | Nuclear Decommissioning [Member] | Nuclear Decommissioning [Member] | Removal Costs [Member] | Removal Costs [Member] | Energy Efficiency Demand Response Programs [Member] | Energy Efficiency Demand Response Programs [Member] | Electric Transmission And Distribution Tax Repairs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over-Recovered Universal Service Fund Costs [Member] | Revenue subject to refund [Member] | Revenue subject to refund [Member] | Other [Member] | Other Postretirement Benefits [Member] | Deferred Income Taxes [Member] | Deferred Income Taxes [Member] | AMI Expenses [Member] | AMI Expenses [Member] | Under Recovered Distribution Service Costs [Member] | Under Recovered Distribution Service Costs [Member] | Debt Costs [Member] | Debt Costs [Member] | Fair Value Of Long Term Debt [Member] | Fair Value Of Supply Contract [Member] | Fair Value Of Supply Contract [Member] | Severance [Member] | Severance [Member] | Asset Retirement Obligations [Member] | Asset Retirement Obligations [Member] | MGP Remediation Costs [Member] | MGP Remediation Costs [Member] | RTO Startup Costs [Member] | RTO Startup Costs [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Renewable Energy And Associated REC [Member] | Renewable Energy And Associated REC [Member] | Under Recovered Energy And Transmission Costs [Member] | Under Recovered Energy And Transmission Costs [Member] | Deferred Storm Costs [Member] | Electric Generation Related Regulatory Asset [Member] | Rate Stabilization Deferral [Member] | Rate Stabilization Deferral [Member] | Energy Efficiency And Demand Response Programs [Member] | Energy Efficiency And Demand Response Programs [Member] | Merger Integration Costs [Member] | Regulatory Assets [Member] | Regulatory Assets [Member] | SmartMeters | Nuclear Decommissioning [Member] | Nuclear Decommissioning [Member] | Removal Costs [Member] | Energy Efficiency Demand Response Programs [Member] | Energy Efficiency Demand Response Programs [Member] | Electric Transmission And Distribution Tax Repairs [Member] | Electric Transmission And Distribution Tax Repairs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over-Recovered Universal Service Fund Costs [Member] | Over-Recovered Universal Service Fund Costs [Member] | Gas Distribution Tax Repairs [Member] | Gas Distribution Tax Repairs [Member] | Regulatory Liabilities Other [Member] | Regulatory Liabilities Other [Member] | Dlc Program Cost [Member] | Dlc Program Cost [Member] | Energy Efficiency Phase [Member] | Energy Efficiency Phase [Member] | Other Postretirement Benefits [Member] | Deferred Income Taxes [Member] | Deferred Income Taxes [Member] | AMI Expenses [Member] | AMI Expenses [Member] | AMI Meter Events [Member] | Under Recovered Distribution Service Costs [Member] | Debt Costs [Member] | Debt Costs [Member] | Fair Value Of Long Term Debt [Member] | Fair Value Of Supply Contract [Member] | Fair Value Of Supply Contract [Member] | Severance [Member] | Severance [Member] | Asset Retirement Obligations [Member] | Asset Retirement Obligations [Member] | MGP Remediation Costs [Member] | MGP Remediation Costs [Member] | RTO Startup Costs [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Under Recovered Energy And Transmission Costs [Member] | Under Recovered Energy And Transmission Costs [Member] | Deferred Storm Costs [Member] | Deferred Storm Costs [Member] | Electric Generation Related Regulatory Asset [Member] | Electric Generation Related Regulatory Asset [Member] | Rate Stabilization Deferral [Member] | Rate Stabilization Deferral [Member] | Energy Efficiency And Demand Response Programs [Member] | Energy Efficiency And Demand Response Programs [Member] | Merger Integration Costs [Member] | Regulatory Assets [Member] | Regulatory Assets [Member] | NewEnglandTransmissionOwners [Member] | Energy Efficiency And Demand Response Programs [Member] | Energy Efficiency And Demand Response Programs [Member] | MW | Nuclear Decommissioning [Member] | Removal Costs [Member] | Removal Costs [Member] | Energy Efficiency Demand Response Programs [Member] | Electric Transmission And Distribution Tax Repairs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over Recovered Energy And Transmission Costs [Member] | Over Recovered Gas Energy And Transmission Costs [Member] | Over-Recovered Universal Service Fund Costs [Member] | Over Recovered Decoupling Revenue [Member] | Over Recovered Decoupling Revenue [Member] | Over Recovered Decoupling Electric Revenue [Member] | Over Recovered Decoupling Gas Revenue [Member] | Over Recovered Decoupling Gas Revenue [Member] | Regulatory Liabilities Other [Member] | Over Recovered Electric Energy And Transmission Costs [Member] | Other [Member] | Other Postretirement Benefits [Member] | Deferred Income Taxes [Member] | Deferred Income Taxes [Member] | AMI Expenses [Member] | AMI Expenses [Member] | AMI Meter Events [Member] | Under Recovered Distribution Service Costs [Member] | Debt Costs [Member] | Debt Costs [Member] | Fair Value Of Long Term Debt [Member] | Fair Value Of Supply Contract [Member] | Fair Value Of Supply Contract [Member] | Severance [Member] | Severance [Member] | Asset Retirement Obligations [Member] | Asset Retirement Obligations [Member] | MGP Remediation Costs [Member] | MGP Remediation Costs [Member] | RTO Startup Costs [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Under Recovered Uncollectible Accounts Expense [Member] | Under Recovered Energy And Transmission Costs [Member] | Under Recovered Energy And Transmission Costs [Member] | Under Recovered Electric Energy And Transmission Costs [Member] | Deferred Storm Costs [Member] | Deferred Storm Costs [Member] | Electric Generation Related Regulatory Asset [Member] | Electric Generation Related Regulatory Asset [Member] | Rate Stabilization Deferral [Member] | Rate Stabilization Deferral [Member] | Energy Efficiency And Demand Response Programs [Member] | Energy Efficiency And Demand Response Programs [Member] | Merger Integration Costs [Member] | Merger Integration Costs [Member] | Regulatory Assets [Member] | Regulatory Assets [Member] | UnderRecoveredTransmissionFormula [Member] | UnderRecoveredTransmissionFormula [Member] | Conservative Voltage Reduction Program [Member] | NewEnglandTransmissionOwners [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Purchase Of Receivables [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
POR gross receivables | $270,000,000 | [1] | ' | $263,000,000 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $116,000,000 | [1] | ' | $105,000,000 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $75,000,000 | [1] | ' | $72,000,000 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $79,000,000 | [1] | ' | $86,000,000 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||
POR Allowance for uncollectible accounts | -32,000,000 | [2] | ' | -30,000,000 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -17,000,000 | [2] | ' | -16,000,000 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -8,000,000 | [2] | ' | -7,000,000 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -7,000,000 | [2] | ' | -7,000,000 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||
POR net receivables | 238,000,000 | ' | 233,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 99,000,000 | ' | 89,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 67,000,000 | ' | 65,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 72,000,000 | ' | 79,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Energy Infrastructure Modernization Act [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Increased revenue requirement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 269,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Expected revenue adjustment for prior year | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 95,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Expected revenue adjustment for current year | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 174,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Excess basis points over treasury after year one | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 5.80% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Illinois Settlement Agreement [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Annual energy savings requirement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Demand response peak demand reduction | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Distribution Rate Case [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Requested increase in electric revenues | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 396,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 118,000,000 | 101,000,000 | ' | 83,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Adjustment to Requested increase in electric revenues | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 343,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Recovery request for Operating and Maintenance expenses of AMI Pilot Program | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 40,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Requested increase in gas revenues | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 68,000,000 | 30,000,000 | ' | 24,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Requested rate of return on common equity | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 11.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Rate of return on common equity electric distribution | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.10% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.65% | ' | 9.75% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Rate of return on common equity gas distribution | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.55% | ' | 9.60% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Increase in electric delivery service revenue resulting from rate case settlement or order. | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 143,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 81,000,000 | ' | 34,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Increase in gas delivery service revenue resulting from rate case settlement or order. | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 32,000,000 | ' | 12,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Regulatory Assets Transfer Changes | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Severance Recovered Through Distribution Rates | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 20,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
ComEd's proposed increase to net distribution revenue requirement related to uncollectable account expense | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 22,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Requested Rate Of Return Common Equity Electric Distribution | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Requested Rate Of Return Common Equity Gas Distribution | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.35 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Appeal of 2007 Illinois Electric Distribution Rate Case [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Increase in electric delivery service revenue requirement resulting from regulatory order in rate case | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 274,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Chicago areas smart meters installed | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 350,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Estimated Refund Obligation To Customers | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 37,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 13,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Chicago area smart meters, approved for installation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 350,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Annual Transmission Formula Rate Update [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Gross transmission revenue requirement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 524,000,000 | 488,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 167,000,000 | ' | 158,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Transmission revenue true up | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 11,000,000 | 25,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4,000,000 | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Net transmission revenue requirement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 535,000,000 | 513,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 171,000,000 | ' | 157,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Smart Meter and Smart Grid Investments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Estimated number of smart meters to be installed | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,600,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Expected number of smart meters to be deployed during the first phase of Smart Meter Installment Plan | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 600,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Revised spend on its Smart Meter Procurement and Installation Plan | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 595,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Spend on smart grid investments | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 120,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Smart meter spend to date | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 480,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Smart grid infrastructure spend to date | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 119,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Total smart grid and smart meter investment grant amount | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Smart meter investment grant awarded | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 140,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Smart grid investment grant awarded | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 60,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Reimbursements received from the DOE | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 198,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Outstanding reimbursable DOE Smart Grid Investment Grant expenditures | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 23,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Carrying value of originally installed Smart Meters, net of reimbursements from DOE | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 17,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
VendorRefund | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Amount of reimbursements received from the DOE applied to the originally installed Smart Meters. | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 16,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Total Projected smart meter smart grid spend | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 480,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Current Year AMI Events Balance | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 5,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Depreciation Related To Original Meters | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
DOE Cash Payable to Sub Receipients | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Upfront fee for opt-out of Smart Meter | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 75 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
RecurringFees | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 11 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
New Electric Generation [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Megawatt capacity of new generating plant | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 700 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Energy Efficiency Program [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Proposed funding of estimated costs associated with DLC demand program due to modification of incentive levels for other Phase II programs. | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Advanced metering infrastructure pilot program [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Collections Under Rider Amp | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 24,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
RegulatoryLiabilityUnderRiderAmp | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 400,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
RefundAMP | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 14,600,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Authorized Return On Rate Base [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Weighted Average Debt And Equity Return Electric Distribution | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.07% | 0.07% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Weighted Average Debt And Equity Return | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8.62% | 8.70% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8.53% | 8.35% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Rate Of Return On Common Equity | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 11.50% | ' | 0.09% | 0.09% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.80% | ' | 11.30% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Rate Of Return On Common Equity in FERC Complaint | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8.70% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.57% | ||||||||||||||||||||||||||||||
Common Equity Component Cap | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 55.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Base Rate Of Return On Common Equity | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 11.14% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
ReductionInRevenuefromProposedRate | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Regulatory Assets And Liabilities Other Disclosures [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Over under recovered electric supply costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 26,000,000 | ' | 34,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Over under recovered gas supply costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 19,000,000 | ' | 16,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Amortization of rate stabilization deferral | 33,000,000 | 29,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 33,000,000 | 29,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Recovered portion of regulatory assets | 117,000,000 | 112,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | ' | 57,000,000 | 62,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 5,000,000 | 4,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 55,000,000 | 47,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Maryland Electric And Natural Gas Distribution Rate Cases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Captial and OM estimates current year | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 14,800,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Revenue Requirment | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,400,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
License Renewals [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Minimum Purchase Obligation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 25,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Maximum Purchase Obligation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 35,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
License Costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 36,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Regulatory Asset [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Noncurrent regulatory assets | 5,545,000,000 | ' | 5,910,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,510,000,000 | 2,794,000,000 | 1,495,000,000 | 1,459,000,000 | 222,000,000 | 159,000,000 | 5,000,000 | 220,000,000 | 285,000,000 | 51,000,000 | 56,000,000 | 198,000,000 | [3] | 219,000,000 | [3] | 0 | [4] | 0 | [4] | 11,000,000 | 12,000,000 | 110,000,000 | 102,000,000 | 196,000,000 | 212,000,000 | 0 | 0 | 70,000,000 | 48,000,000 | 121,000,000 | 176,000,000 | 4,000,000 | ' | 1,000,000 | 3,000,000 | 24,000,000 | 30,000,000 | 119,000,000 | 154,000,000 | 148,000,000 | 148,000,000 | 7,000,000 | 9,000,000 | 37,000,000 | 39,000,000 | 1,000,000 | ' | ' | ' | ' | 850,000,000 | ' | 933,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 68,000,000 | 65,000,000 | 56,000,000 | 35,000,000 | 220,000,000 | 285,000,000 | 49,000,000 | 53,000,000 | 0 | [3] | 0 | [4] | 0 | 0 | 0 | 73,000,000 | 67,000,000 | 165,000,000 | 178,000,000 | 0 | 0 | 70,000,000 | 48,000,000 | 121,000,000 | 176,000,000 | 0 | ' | 0 | 0 | 0 | 0 | 0 | 0 | ' | 28,000,000 | 26,000,000 | 1,495,000,000 | ' | 1,448,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 1,358,000,000 | 1,317,000,000 | 72,000,000 | 58,000,000 | 5,000,000 | 0 | 2,000,000 | 3,000,000 | 0 | [3] | 0 | [4] | ' | 0 | 0 | 26,000,000 | 25,000,000 | 30,000,000 | 33,000,000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ' | 7,000,000 | 7,000,000 | ' | ' | ' | 499,000,000 | ' | 524,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 69,000,000 | 77,000,000 | 94,000,000 | 66,000,000 | 0 | 0 | 8,000,000 | 8,000,000 | 0 | [3] | 0 | [4] | ' | 11,000,000 | 12,000,000 | 11,000,000 | 10,000,000 | 1,000,000 | 1,000,000 | 0 | 0 | 0 | 4,000,000 | 0 | ' | 1,000,000 | 3,000,000 | 24,000,000 | 30,000,000 | 119,000,000 | 154,000,000 | 148,000,000 | 148,000,000 | 7,000,000 | 9,000,000 | 1,000,000 | 6,000,000 | ' | ' | 1,000,000 | ' | ||||||||||||||||||||
Current regulatory assets | 732,000,000 | ' | 760,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 208,000,000 | 221,000,000 | 13,000,000 | 10,000,000 | 7,000,000 | 5,000,000 | ' | 219,000,000 | 178,000,000 | 10,000,000 | 12,000,000 | 7,000,000 | [3] | 0 | 6,000,000 | [4] | 12,000,000 | [4] | 4,000,000 | 16,000,000 | 1,000,000 | 1,000,000 | 40,000,000 | 40,000,000 | 1,000,000 | 2,000,000 | 0 | 0 | 13,000,000 | 17,000,000 | 17,000,000 | 53,000,000 | 3,000,000 | 3,000,000 | 13,000,000 | 13,000,000 | 73,000,000 | 71,000,000 | 63,000,000 | 73,000,000 | 2,000,000 | 2,000,000 | 32,000,000 | 31,000,000 | ' | ' | ' | ' | ' | 304,000,000 | ' | 329,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 1,000,000 | 2,000,000 | 7,000,000 | 5,000,000 | 219,000,000 | 178,000,000 | 8,000,000 | 9,000,000 | 0 | [3] | 0 | [4] | 0 | 0 | 12,000,000 | 1,000,000 | 1,000,000 | 33,000,000 | 33,000,000 | 1,000,000 | 2,000,000 | 0 | 0 | 13,000,000 | 17,000,000 | 12,000,000 | 52,000,000 | 0 | 0 | 0 | ' | 0 | 0 | 0 | 9,000,000 | 18,000,000 | 29,000,000 | ' | 17,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 0 | ' | 0 | ' | ' | 0 | 2,000,000 | 3,000,000 | 0 | [3] | 0 | [4] | 0 | 0 | 0 | 0 | 0 | 6,000,000 | 6,000,000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21,000,000 | 8,000,000 | ' | ' | ' | 178,000,000 | ' | 181,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 12,000,000 | 8,000,000 | 0 | 0 | 0 | 0 | 1,000,000 | 1,000,000 | 0 | [3] | 1,000,000 | 11,000,000 | 4,000,000 | 4,000,000 | 0 | ' | 1,000,000 | 1,000,000 | 0 | 0 | 0 | 5,000,000 | 1,000,000 | [5] | 7,000,000 | 3,000,000 | 3,000,000 | 13,000,000 | 13,000,000 | 73,000,000 | 71,000,000 | 63,000,000 | 73,000,000 | 2,000,000 | 2,000,000 | 1,000,000 | 4,000,000 | ' | ' | ' | ' | |||||||||||||||||||||
Net regulatory asset | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 439,000,000 | 463,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4,000,000 | 0 | ' | ' | ||||||||||||||||||||||||||||||
Regulatory Liabilities [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Regulatory Liability Current | 368,000,000 | ' | 327,000,000 | ' | 0 | 107,000,000 | 99,000,000 | 14,000,000 | 53,000,000 | 20,000,000 | 20,000,000 | 89,000,000 | 78,000,000 | 5,000,000 | 8,000,000 | 47,000,000 | [6] | 38,000,000 | [6] | 21,000,000 | [7] | 16,000,000 | [7] | 8,000,000 | 8,000,000 | 3,000,000 | 4,000,000 | 1,000,000 | 1,000,000 | ' | ' | 53,000,000 | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 164,000,000 | ' | 170,000,000 | ' | ' | ' | ' | 0 | 83,000,000 | 78,000,000 | 14,000,000 | 45,000,000 | 0 | 19,000,000 | 9,000,000 | 0 | 47,000,000 | [6] | 38,000,000 | [6] | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 88,000,000 | ' | 106,000,000 | ' | 0 | 0 | 0 | 8,000,000 | 20,000,000 | 20,000,000 | 52,000,000 | [8] | 58,000,000 | [8] | 5,000,000 | 8,000,000 | 8,000,000 | 8,000,000 | 2,000,000 | 3,000,000 | 1,000,000 | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 63,000,000 | ' | 48,000,000 | ' | 0 | 24,000,000 | 21,000,000 | 0 | 0 | 18,000,000 | [5] | 11,000,000 | 18,000,000 | 0 | 21,000,000 | [7] | 16,000,000 | [7] | 3,000,000 | 18,000,000 | 9,000,000 | 0 | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Noncurrent regulatory liabilities | 4,670,000,000 | ' | 4,388,000,000 | 2,917,000,000 | 2,740,000,000 | 1,449,000,000 | 1,423,000,000 | 2,000,000 | 0 | 104,000,000 | 114,000,000 | 11,000,000 | 0 | ' | 0 | ' | ' | ' | ' | 34,000,000 | 37,000,000 | 1,000,000 | ' | 9,000,000 | 10,000,000 | 32,000,000 | 21,000,000 | 111,000,000 | 43,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | 3,686,000,000 | ' | 3,512,000,000 | ' | ' | ' | 2,427,000,000 | 2,293,000,000 | 1,248,000,000 | 1,219,000,000 | 0 | 0 | 0 | 11,000,000 | 0 | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 671,000,000 | ' | 629,000,000 | 490,000,000 | 447,000,000 | 0 | 2,000,000 | 0 | 104,000,000 | 114,000,000 | ' | 0 | ' | 0 | 34,000,000 | 37,000,000 | ' | ' | 9,000,000 | 10,000,000 | 32,000,000 | 21,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 202,000,000 | ' | 204,000,000 | ' | 0 | 201,000,000 | 204,000,000 | 0 | 0 | ' | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Regulatory Liabilities Table Footnote Data [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
Electric Transmission Costs Under-Recovery | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $7,000,000 | ' | $8,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||||||
[1] | PECO's gas POR program became effective on January 1, 2012 and includes a 1% discount on purchased receivables in order to recover the implementation costs of the program. If the costs are not fully recovered when PECO files its next gas distribution rate case, PECO will propose a mechanism to recover the remaining implementation costs as a distribution charge to low volume transportation customers or apply future discounts on purchased receivables from natural gas suppliers serving those customers. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[2] | For ComEd and BGE, reflects the incremental allowance for uncollectible accounts recorded, which is in addition to the purchase discount. For ComEd, the incremental uncollectible accounts expense is recovered through its Purchase of Receivables with Consolidated Billing (PORCB) tariff. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[3] | Represents the regulatory asset recorded at Exelon Corporate for the difference in the fair value of the long-term debt of BGE as of the merger date. The asset is amortized over the life of the underlying debt. See Note 10 b Debt and Credit Agreements for additional information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[4] | Represents the regulatory asset recorded at Exelon Corporate representing the fair value of BGE's supply contracts as of the close of the merger date. BGE is allowed full recovery of the costs of its electric and gas supply contracts through approved, regulated rates. The asset is amortized over a period of approximately 3 years. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[5] | . Relates to $1 million of under-recovered electric supply costs, $4 million associated with the transmission formula rate and $18 million of over-recovered natural gas supply costs as of June 30, 2014. As of December 31, 2013, includes $1 million of under-recovered electric supply costs, $0 million associated with the transmission formula rate and $11 million of over-recovered natural gas supply costs. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[6] | Primarily represents the regulatory liability for revenue subject to refund recorded pursuant to the ICCbs order in the 2007 Rate Case. See Note 3 b Regulatory Matters of the Exelon 2013 Form 10-K for further information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[7] | Represents the electric and gas distribution costs recoverable from customers under BGEbs decoupling mechanism. As of June 30, 2014, BGE had a regulatory liability of $3 million related to over-recovered electric revenue decoupling and $18 million related to over-recovered natural gas revenue decoupling. As of December 31, 2013, BGE had a regulatory liability of $7 million related to over-recovered electric revenue decoupling and $9 million related to over-recovered natural gas revenue decoupling | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[8] | Includes $26 million related to the DSP program, $19 million related to the over-recovered natural gas costs under the PGC and $7 million related to over-recovered electric transmission costs as of June 30, 2014. As of December 31, 2013, includes $34 million related to the DSP program, $8 million related to the over-recovered electric transmission costs and $16 million related to the over-recovered natural gas costs under the PGC. |
Merger_and_Acquisitions_Detail
Merger and Acquisitions (Details) (USD $) | 0 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||||||||||||||||||||
Share data in Millions, except Per Share data, unless otherwise specified | 15-May-14 | Jun. 30, 2014 | Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Apr. 02, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012 | 15-May-14 | Jun. 30, 2014 | Jun. 11, 2014 | Jun. 11, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | ||
Severance [Member] | Severance [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Pepco Holdings [Member] | Pepco Holdings [Member] | Pepco Holdings [Member] | Pepco Holdings [Member] | Pepco Holdings [Member] | Pepco Holdings [Member] | Customer Relationships [Member] | Trade Names [Member] | Power Supply Contracts [Member] | |||||||||||
Severance [Member] | Severance [Member] | Minimum [Member] | Minimum [Member] | Maximum [Member] | Maximum [Member] | Convertible | Minimum [Member] | Maximum [Member] | Constellation Energy Group Acquisition [Member] | Constellation Energy Group Acquisition [Member] | Constellation Energy Group Acquisition [Member] | |||||||||||||||||||||||||||||||||
MW | MW | |||||||||||||||||||||||||||||||||||||||||||
Acquired Finite-Lived Intangible Assets [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Acquired Finite Lived Intangible Asset Weighted Average Useful Life | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | '12 years 4 months 26 days | '10 years | '1 year 6 months 3 days | ||
Payments to Acquire Businesses and Interest in Affiliates [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition Cost Of Acquired Entity Transaction Costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $25,000,000 | ' | ' | ' | ' | ' | ' | ' | ||
Payments To Acquire Businesses Net Of Cash Acquired [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Payments To Acquire Businesses Gross | ' | ' | ' | ' | ' | 66,000,000 | 3,000,000 | ' | ' | ' | ' | ' | -66,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
BusinessAcquisitionPreexistingRelationshipGainLossRecognized | ' | 125,000,000 | 125,000,000 | ' | ' | 125,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Combination Proposed Customer Benefits Package | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 100,000,000 | ' | ' | ' | ' | ' | ' | ' | ||
BusinessExitCosts | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 259,000,000 | 293,000,000 | ' | ' | ' | ||
CashFundingFromNonCoreAssetSale | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ||
Units of shares offered | ' | 57.5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
SubordinatedLongTermDebt | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,200,000,000 | ' | ' | ' | ' | ' | ||
BridgeLoan | ' | 4,200,000,000 | 4,200,000,000 | ' | ' | 4,200,000,000 | ' | 7,200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Equity Method Investment Ownership Percentage | 67.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | 50.01% | ' | 50.01% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
GainOnSaleOfInvestmentsNet | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 332,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ||
EquityMethodInvestmentNetSalesProceeds | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 613,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ||
AfterTaxNetCashProceeds | 37,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Cash offered in exchange for each share of PHI common stock | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $27.25 | $35 | ' | ' | ' | ' | ' | ' | ||
PHI Preferred Securities Acquired | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 90,000,000 | ' | ' | ' | ' | ' | ' | ' | ||
OtherLongTermInvestmentsMaximum | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 180,000,000 | ' | ' | ' | ' | ' | ' | ' | ||
Long Term Debt | ' | 131,000,000 | 131,000,000 | ' | ' | 131,000,000 | ' | ' | ' | ' | 1,000,000 | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Impact Of Merger [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Revenues | ' | ' | 6,024,000,000 | 6,141,000,000 | 6,141,000,000 | 13,261,000,000 | [1] | 12,223,000,000 | [1] | ' | ' | ' | 3,789,000,000 | 4,070,000,000 | 8,179,000,000 | 7,603,000,000 | ' | ' | ' | ' | ' | ' | 1,128,000,000 | 1,080,000,000 | 2,262,000,000 | 2,239,000,000 | 656,000,000 | 672,000,000 | 1,649,000,000 | 1,567,000,000 | 653,000,000 | 653,000,000 | 1,707,000,000 | 1,533,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net income | ' | ' | 557,000,000 | ' | 497,000,000 | ' | 498,000,000 | ' | ' | ' | 372,000,000 | 328,000,000 | 188,000,000 | 310,000,000 | ' | ' | ' | ' | ' | ' | 111,000,000 | 96,000,000 | 209,000,000 | 14,000,000 | 84,000,000 | 78,000,000 | 173,000,000 | 200,000,000 | 19,000,000 | 25,000,000 | 106,000,000 | 106,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Regulatory Assets Transfer Changes | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Regulatory Matters [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Direct Investment With State And Local Governments Due To Settlement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Construction Cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 95,000,000 | ' | 120,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Development Of New Generation Cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 600,000,000 | ' | 650,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Expected New Generation Mwh | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 285 | ' | 300 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition Potential Cash Payment | ' | 40,000,000 | 40,000,000 | ' | ' | 40,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Restructuring Reserve [Roll Forward] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Restructuring Reserve, Period Start | ' | ' | ' | ' | ' | ' | ' | ' | 20,000,000 | 2,000,000 | ' | ' | ' | ' | 20,000,000 | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Severance Charges | ' | ' | ' | ' | ' | 2,000,000 | ' | ' | ' | ' | ' | ' | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Payments | ' | ' | ' | ' | ' | 3,000,000 | ' | ' | ' | ' | ' | ' | 3,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Restructuring Reserve, Period End | ' | ' | ' | ' | ' | ' | ' | ' | 20,000,000 | 2,000,000 | ' | ' | ' | ' | 20,000,000 | 2,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition, Costs Recognized Post Merger [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Length of years for charitable contributions at $7 million per year | ' | ' | ' | ' | ' | '10 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Business Acquisition Charitable Contributions Per Year | ' | ' | ' | ' | ' | $7,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
[1] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. |
Investment_in_Constellation_En2
Investment in Constellation Energy Nuclear Group, LLC (Details) (USD $) | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 0 Months Ended | ||||||||||||||||||||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | 15-May-14 | Dec. 31, 2013 | Apr. 02, 2014 | Apr. 02, 2014 | Apr. 02, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Apr. 02, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Mar. 31, 2014 | Apr. 02, 2014 | Apr. 02, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Apr. 02, 2014 | Apr. 02, 2014 | Apr. 02, 2014 | ||||||||
CENGMember [Member] | CENG [Member] | CENG [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Constellation Energy Group LLC [Member] | Constellation Energy Group LLC [Member] | Electricite De France LLC [Member] | ||||||||||||||||
Subsequent Event [Member] | Subsequent Event [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENG [Member] | CENG [Member] | First Distribution [Member] | Second Distribution [Member] | Minimum [Member] | EDFI [Member] | GenerationCoMember [Member] | CENG [Member] | ||||||||||||||||||||||
FinancialGuaranteeMember | Payment Guarantee [Member] | Subsequent Event [Member] | Subsequent Event [Member] | CENG [Member] | CENG [Member] | Subsequent Event [Member] | Subsequent Event [Member] | Subsequent Event [Member] | ||||||||||||||||||||||||||||
Payment Guarantee [Member] | FinancialGuaranteeMember | |||||||||||||||||||||||||||||||||||
Schedule of Equity Method Investments [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Percentage of ownership interest in CENG (as a percent) | ' | ' | ' | ' | ' | 67.00% | ' | ' | ' | ' | 50.01% | ' | 50.01% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Total equity investment earnings (losses) - CENG | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $19 | $19 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Basis difference in investment in CENG | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 204 | ' | 204 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Gain on consolidation of CENG | 261 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 261 | ' | -268 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Related Party Transaction [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
BusinessAcquisitionPreexistingRelationshipGainLossRecognized | 125 | ' | ' | 125 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1 | 136 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Loss on equity method investments | 0 | ' | -21 | -20 | -30 | ' | ' | ' | ' | ' | -1 | -21 | -20 | -30 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Accumulated Other Comprehensive Income (Loss), Net of Tax | -1,906 | [1] | ' | ' | -1,906 | [1] | ' | ' | -2,040 | [1] | 1,500 | ' | ' | 37 | [1] | ' | 37 | [1] | ' | 214 | [1] | ' | ' | ' | ' | 139 | ' | ' | ' | ' | ' | ' | ' | ' | ||
Revenues | 6,024 | 6,141 | 6,141 | 13,261 | [2] | 12,223 | [2] | ' | ' | ' | ' | ' | 3,789 | 4,070 | 8,179 | 7,603 | ' | ' | ' | 23 | 98 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||
Required purchases of power from CENG's nuclear plants not sold to third parties (as a percent) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 85.00% | ' | ' | ' | ||||||||
Equity Method Investments | 0 | ' | ' | 0 | ' | ' | 1,925 | ' | ' | ' | 0 | ' | 0 | ' | 1,925 | ' | ' | ' | ' | 1,900 | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Purchase of nuclear output by EDF (as a percent) | ' | ' | ' | 49.99% | ' | ' | ' | ' | ' | ' | ' | ' | 49.99% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Impact Of Transactions Under Agreements [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Increase (Decrease) in earnings | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | 201 | 352 | 535 | 744 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net Income | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 76 | ' | 76 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Business Combination, Integration Related Costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 11 | ' | 18 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Amortization of energy contract assets and liabilities | ' | ' | ' | 113 | [3] | 306 | [3] | ' | ' | ' | ' | ' | ' | ' | 118 | [3] | 344 | [3] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||
Distribution From Affiliates | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 115 | 13 | ' | ' | ' | ' | ||||||||
Loan Recievable from CENG | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 400 | ' | ' | ' | ' | ' | ' | ' | ||||||||
Special and Preferred Distributions by CENG | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 235 | 474 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 400 | 400 | ' | ||||||||
Debt Instrument Interest Rate Stated Percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 5.25% | ' | ' | ' | ' | ' | ' | ' | ||||||||
InterestRateOnDistribution | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 8.50% | ' | ||||||||
Maximum exposure related to guarantees | 9,839 | ' | ' | 9,839 | ' | ' | ' | ' | ' | ' | 6,375 | ' | 6,375 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 145 | ||||||||
Due To Affiliate Current And Noncurrent | ' | ' | ' | ' | ' | ' | ' | ' | 165 | 245 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 205 | ' | ' | ' | ' | ' | ' | ||||||||
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Abstract | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Current Assets | ' | ' | ' | ' | ' | ' | ' | 499 | ' | ' | ' | ' | ' | ' | ' | 499 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Property, plant and equipment | ' | ' | ' | ' | ' | ' | ' | 2,958 | ' | ' | ' | ' | ' | ' | ' | 2,958 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Nuclear Fuel Inventory | ' | ' | ' | ' | ' | ' | ' | 482 | ' | ' | ' | ' | ' | ' | ' | 482 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Non Current Assets | ' | ' | ' | ' | ' | ' | ' | 10 | ' | ' | ' | ' | ' | ' | ' | 10 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Total assets | ' | ' | ' | ' | ' | ' | ' | 5,904 | ' | ' | ' | ' | ' | ' | ' | 5,904 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Current liabilities | ' | ' | ' | ' | ' | ' | ' | 237 | ' | ' | ' | ' | ' | ' | ' | 237 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Asset Retirement Obligation | ' | ' | ' | ' | ' | ' | ' | 1,701 | ' | ' | ' | ' | ' | ' | ' | 1,701 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Unamortized energy contracts | ' | ' | ' | ' | ' | ' | ' | 171 | ' | ' | ' | ' | ' | ' | ' | 171 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Pension obligation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 281 | ' | 281 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Deferred credits and other liabilities and preferred securities | ' | ' | ' | ' | ' | ' | ' | 114 | ' | ' | ' | ' | ' | ' | ' | 114 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities | ' | ' | ' | ' | ' | ' | ' | 2,504 | ' | ' | ' | ' | ' | ' | ' | 2,504 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | ' | ' | ' | ' | ' | ' | ' | 3,400 | ' | ' | ' | ' | ' | ' | ' | 3,400 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Noncontrolling interest acquired | ' | ' | ' | 1,548 | ' | ' | ' | ' | ' | ' | ' | ' | 1,548 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
ReductionToNetIncomeAttributableToNonControllingInterest | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $4 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
[1] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. | |||||||||||||||||||||||||||||||||||
[2] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. | |||||||||||||||||||||||||||||||||||
[3] | Included in purchased power and fuel expense on the Registrants' Consolidated Statements of Operations and Comprehensive Income |
Recovered_Sheet2
Impairment of Long-Lived Assets (Details) (USD $) | 3 Months Ended | 6 Months Ended | ||||||
Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Sep. 30, 2000 | |
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Capital Leases, Net Investment in Direct Financing Leases, Unguaranteed Residual Values of Leased Property | $685,000,000 | ' | ' | ' | $685,000,000 | ' | $1,465,000,000 | $1,600,000,000 |
Less: unearned income | -332,000,000 | ' | ' | ' | -332,000,000 | ' | -767,000,000 | ' |
Net investment in long-term leases | 353,000,000 | ' | ' | ' | 353,000,000 | ' | 698,000,000 | ' |
Carring Amount Of Long Lived Assets To Be Written Down | 151,000,000 | ' | ' | ' | 151,000,000 | ' | ' | ' |
ImpairedAssetsFairValue | 65,000,000 | ' | ' | ' | 65,000,000 | ' | ' | ' |
Other Cost and Expense, Operating | 2,166,000,000 | 1,000,000 | 1,892,000,000 | ' | 4,024,000,000 | 3,656,000,000 | ' | ' |
CapitalLeasesNetInvestmentInDirectFinancingLeasesWriteoff | 336,000,000 | ' | ' | ' | 336,000,000 | ' | ' | ' |
ProceedsFromLeaseTermination | ' | ' | ' | ' | 335,000,000 | ' | ' | ' |
Tangible Asset Impairment Charges | ' | ' | ' | ' | 86,000,000 | ' | ' | ' |
CapitalLeaseNetInvestmentInDirectFinancingLeasesPrepaymentsReceived | 1,200,000,000 | ' | ' | ' | 1,200,000,000 | ' | ' | ' |
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Utilities Operating Expense, Impairments | ' | ' | 92,000,000 | 21,000,000 | ' | ' | ' | ' |
Interest Costs Incurred [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Interest Costs Incurred | ' | ' | ' | ' | ' | 8,000,000 | ' | ' |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ' | ' | ' |
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Carring Amount Of Long Lived Assets To Be Written Down | 151,000,000 | ' | ' | ' | 151,000,000 | ' | ' | ' |
ImpairedAssetsFairValue | 65,000,000 | ' | ' | ' | 65,000,000 | ' | ' | ' |
Other Cost and Expense, Operating | 1,255,000,000 | ' | 1,041,000,000 | ' | 2,194,000,000 | 2,007,000,000 | ' | ' |
Tangible Asset Impairment Charges | ' | ' | ' | ' | 86,000,000 | ' | ' | ' |
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Utilities Operating Expense, Impairments | ' | ' | 92,000,000 | 21,000,000 | ' | ' | ' | ' |
Interest Costs Incurred [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Interest Costs Incurred | ' | ' | ' | ' | ' | 8,000,000 | ' | ' |
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ' | ' | ' |
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Other Cost and Expense, Operating | 316,000,000 | ' | 319,000,000 | ' | 603,000,000 | 611,000,000 | ' | ' |
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ' | ' | ' |
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Other Cost and Expense, Operating | 160,000,000 | ' | 155,000,000 | ' | 416,000,000 | 319,000,000 | ' | ' |
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ' | ' | ' |
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' |
Other Cost and Expense, Operating | $163,000,000 | ' | $139,000,000 | ' | $326,000,000 | $266,000,000 | ' | ' |
Goodwill_Details
Goodwill (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Millions, unless otherwise specified | ||
Goodwill [Roll Forward] | ' | ' |
Goodwill, beginning balance | $2,674 | $2,625 |
Goodwill, ending balance | 2,674 | 2,625 |
Exelon Generation Co L L C [Member] | ' | ' |
Goodwill [Roll Forward] | ' | ' |
Goodwill, beginning balance | 49 | 0 |
Goodwill, ending balance | 49 | 0 |
Commonwealth Edison Co [Member] | ' | ' |
Goodwill [Roll Forward] | ' | ' |
Goodwill, beginning balance | 2,625 | 2,625 |
Goodwill, ending balance | $2,625 | $2,625 |
Accounts_Receivable_Details
Accounts Receivable (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Millions, unless otherwise specified | ||
Accounts Notes And Loans Receivable Net Current [Abstract] | ' | ' |
Allowance for uncollectible accounts | $293 | $272 |
Accounts Receivable Additional Disclosures [Abstract] | ' | ' |
Gross Accounts Receivable Pledged as Collateral | 0 | 0 |
Exelon Generation Co L L C [Member] | ' | ' |
Accounts Notes And Loans Receivable Net Current [Abstract] | ' | ' |
Allowance for uncollectible accounts | 56 | 57 |
Commonwealth Edison Co [Member] | ' | ' |
Accounts Notes And Loans Receivable Net Current [Abstract] | ' | ' |
Allowance for uncollectible accounts | 71 | 62 |
PECO Energy Co [Member] | ' | ' |
Accounts Notes And Loans Receivable Net Current [Abstract] | ' | ' |
Allowance for uncollectible accounts | 124 | 107 |
Accounts Receivable Additional Disclosures [Abstract] | ' | ' |
Gross Accounts Receivable Pledged as Collateral | 0 | 0 |
Financing Receivable Recorded Investment [Line Items] | ' | ' |
Installment plan receivables | 21 | 19 |
Installment plan receivables uncollectible accounts reserve | -20 | -18 |
PECO Energy Co [Member] | Medium Risk [Member] | ' | ' |
Financing Receivable Recorded Investment [Line Items] | ' | ' |
Installment plan receivables uncollectible accounts reserve | -4 | -4 |
PECO Energy Co [Member] | High Risk [Member] | ' | ' |
Financing Receivable Recorded Investment [Line Items] | ' | ' |
Installment plan receivables uncollectible accounts reserve | -15 | -13 |
Baltimore Gas and Electric Company [Member] | ' | ' |
Accounts Notes And Loans Receivable Net Current [Abstract] | ' | ' |
Allowance for uncollectible accounts | $42 | $46 |
Property_Plant_and_Equipment_D
Property, Plant and Equipment (Details) (USD $) | 6 Months Ended | |||
In Millions, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013 | ||
Property Plant And Equipment [Line Items] | ' | ' | ||
Less: accumulated depreciation | ($14,369) | [1] | ($13,713) | [2] |
Property, plant and equipment, net | 51,747 | 47,330 | ||
Property Plant And Equipment Footnotes [Abstract] | ' | ' | ||
Accumulated amortization of nuclear fuel | 2,411 | 2,371 | ||
Plant Retirement Cost [Abstract] | ' | ' | ||
Inventory write down related to plant retirements | 3 | ' | ||
Exelon Generation Co L L C [Member] | ' | ' | ||
Property Plant And Equipment [Line Items] | ' | ' | ||
Less: accumulated depreciation | -7,397 | [1] | -7,034 | [2] |
Property, plant and equipment, net | 23,743 | 20,111 | ||
Property Plant And Equipment Footnotes [Abstract] | ' | ' | ||
Accumulated amortization of nuclear fuel | 2,411 | 2,371 | ||
Plant Retirement Cost [Abstract] | ' | ' | ||
Inventory write down related to plant retirements | 3 | ' | ||
Commonwealth Edison Co [Member] | ' | ' | ||
Property Plant And Equipment [Line Items] | ' | ' | ||
Less: accumulated depreciation | -3,325 | -3,184 | ||
Property, plant and equipment, net | 15,121 | 14,666 | ||
Plant Retirement Cost [Abstract] | ' | ' | ||
Inventory write down related to plant retirements | 1 | ' | ||
PECO Energy Co [Member] | ' | ' | ||
Property Plant And Equipment [Line Items] | ' | ' | ||
Less: accumulated depreciation | -2,969 | -2,935 | ||
Property, plant and equipment, net | 6,545 | 6,384 | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ||
Property Plant And Equipment [Line Items] | ' | ' | ||
Less: accumulated depreciation | -2,781 | -2,702 | ||
Property, plant and equipment, net | $6,030 | $5,864 | ||
[1] | Includes accumulated amortization of nuclear fuel in the reactor core of $2,411 million. | |||
[2] | Includes accumulated amortization of nuclear fuel in the reactor core of $2,371 million. |
Fair_Value_of_Financial_Assets3
Fair Value of Financial Assets and Liabilities (Fair Value By Balance Sheet Grouping) (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Millions, unless otherwise specified | ||
Carrying Reported Amount Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | $624 | $344 |
Long-term debt (including amounts due within one year) | 20,180 | 19,132 |
Long-term debt to financing trusts | 648 | 648 |
Spent nuclear fuel obligation | 1,021 | 1,021 |
Preferred securities of subsidiary | ' | 0 |
Estimate Of Fair Value Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 624 | 344 |
Long-term debt (including amounts due within one year) | 21,658 | 19,751 |
Long-term debt to financing trusts | 668 | 631 |
Spent nuclear fuel obligation | 814 | 790 |
Preferred securities of subsidiary | ' | 0 |
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 1 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 3 | 3 |
Long-term debt (including amounts due within one year) | 1,150 | ' |
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 2 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 621 | 341 |
Long-term debt (including amounts due within one year) | 19,373 | 18,672 |
Spent nuclear fuel obligation | 814 | 790 |
Preferred securities of subsidiary | ' | 0 |
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 3 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Long-term debt (including amounts due within one year) | 1,135 | 1,079 |
Long-term debt to financing trusts | 668 | 631 |
Exelon Generation Co L L C [Member] | Carrying Reported Amount Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 53 | 22 |
Long-term debt (including amounts due within one year) | 7,507 | 7,729 |
Spent nuclear fuel obligation | 1,021 | 1,021 |
Exelon Generation Co L L C [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 53 | 22 |
Long-term debt (including amounts due within one year) | 8,016 | 7,648 |
Spent nuclear fuel obligation | 814 | 790 |
Exelon Generation Co L L C [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 2 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 53 | 22 |
Long-term debt (including amounts due within one year) | 6,881 | 6,586 |
Spent nuclear fuel obligation | 814 | 790 |
Exelon Generation Co L L C [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 3 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Long-term debt (including amounts due within one year) | 1,135 | 1,062 |
Commonwealth Edison Co [Member] | Carrying Reported Amount Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 498 | 184 |
Long-term debt (including amounts due within one year) | 5,708 | 5,675 |
Long-term debt to financing trusts | 206 | 206 |
Commonwealth Edison Co [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 498 | 184 |
Long-term debt (including amounts due within one year) | 6,452 | 6,255 |
Long-term debt to financing trusts | 211 | 202 |
Commonwealth Edison Co [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 2 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 498 | 184 |
Long-term debt (including amounts due within one year) | 6,452 | 6,238 |
Commonwealth Edison Co [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 3 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Long-term debt (including amounts due within one year) | 0 | 17 |
Long-term debt to financing trusts | 211 | 202 |
PECO Energy Co [Member] | Carrying Reported Amount Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 0 | 0 |
Long-term debt (including amounts due within one year) | 2,197 | 2,197 |
Long-term debt to financing trusts | 184 | 184 |
PECO Energy Co [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 0 | 0 |
Long-term debt (including amounts due within one year) | 2,436 | 2,358 |
Long-term debt to financing trusts | 198 | 180 |
PECO Energy Co [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 2 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 0 | 0 |
Long-term debt (including amounts due within one year) | 2,436 | 2,358 |
PECO Energy Co [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 3 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Long-term debt to financing trusts | 198 | 180 |
Baltimore Gas and Electric Company [Member] | Carrying Reported Amount Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 73 | 138 |
Long-term debt (including amounts due within one year) | 1,976 | 2,011 |
Long-term debt to financing trusts | 258 | 258 |
Baltimore Gas and Electric Company [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 73 | 138 |
Long-term debt (including amounts due within one year) | 2,206 | 2,148 |
Long-term debt to financing trusts | 259 | 249 |
Baltimore Gas and Electric Company [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 1 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 3 | 3 |
Baltimore Gas and Electric Company [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 2 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Short-term liabilities | 70 | 135 |
Long-term debt (including amounts due within one year) | 2,206 | 2,148 |
Baltimore Gas and Electric Company [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level 3 [Member] | ' | ' |
Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] | ' | ' |
Long-term debt to financing trusts | $259 | $249 |
Fair_Value_of_Financial_Assets4
Fair Value of Financial Assets and Liabilities (Fair Value Measurements, Recurring and Nonrecurring) (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | ||
In Millions, unless otherwise specified | |||||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | $1,034 | [1] | $1,230 | [1] | ' |
Fixed income [Abstract] | ' | ' | ' | ||
Other investments | 23 | 15 | ' | ||
Deferred compensation | -104 | -114 | ' | ||
Total assets | 13,031 | 11,162 | ' | ||
Total liabilities | -594 | -573 | ' | ||
Total net assets | 12,437 | 10,589 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 104 | 114 | ' | ||
Mark-to-market derivative liabilities (current liabilities) | 228 | 159 | ' | ||
Mark-to-market derivative liabilities (noncurrent liabilities) | 262 | 300 | ' | ||
Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 217 | 459 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 2,572 | 1,776 | ' | ||
Exchange traded funds | 164 | 115 | ' | ||
Commingled funds | 2,529 | 2,271 | ' | ||
Equity securities subtotal | 5,265 | ' | ' | ||
Balanced Funds - Commingled Funds | 273 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 990 | 882 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 416 | 294 | ' | ||
Debt securities issued by foreign governments | 114 | 87 | ' | ||
Corporate debt securities | 2,240 | 1,784 | ' | ||
Federal agency mortgage-backed securities | 84 | 10 | ' | ||
Commercial mortgage-backed securities (non-agency) | 43 | 40 | ' | ||
Residential mortgage-backed securities (non-agency) | 3 | 7 | ' | ||
Commingled funds fixed income | 325 | ' | ' | ||
Mutual funds fixed income | 18 | 18 | ' | ||
Fixed income subtotal | 4,233 | 3,122 | ' | ||
Private equity | 35 | 5 | ' | ||
Direct lending securities | 376 | 314 | ' | ||
Other debt obligations | 24 | 14 | ' | ||
Nuclear decommissioning trust fund investments subtotal | 10,423 | [2] | 8,076 | [2] | ' |
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Net assets (liabilities) excluded from nuclear decommissioning trust fund investments | 14 | -5 | ' | ||
Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 45 | 26 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 6 | 16 | ' | ||
Equity securities subtotal | 6 | 16 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 15 | 49 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 19 | 20 | ' | ||
Corporate debt securities | 172 | 227 | ' | ||
Commingled funds fixed income | 5 | ' | ' | ||
Fixed income subtotal | 211 | 296 | ' | ||
Direct lending securities | 133 | 112 | ' | ||
Other debt obligations | ' | 1 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 395 | [3] | 451 | [3] | ' |
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Net assets (liabilities) excluded from pledged assets | 7 | 7 | ' | ||
Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 2 | 2 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities subtotal | 0 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 43 | [4],[5] | 54 | [4],[5] | ' |
Rabbi trust investments subtotal | 45 | 56 | ' | ||
Deferred compensation | -42 | -53 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 42 | 53 | ' | ||
Supplemental executive retirement plan fair value | 1 | 1 | ' | ||
Cash surrender value of life insurance investments excluded from Rabbi Trust investments | 34 | 32 | ' | ||
Derivative Financial Instruments Liabilities [Member] | ' | ' | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Fair value of energy swap contract current liability | 13 | 17 | ' | ||
Fair value of energy swap contract noncurrent liability | 121 | 176 | ' | ||
Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 4,816 | 3,960 | ' | ||
Proprietary trading | 1,074 | 1,761 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -4,815 | [6] | -4,424 | [6] | ' |
Mark-to-market subtotal | 1,075 | 1,297 | ' | ||
Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | -4,702 | -3,020 | ' | ||
Proprietary trading | -1,065 | -1,703 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 5,305 | [6] | 4,280 | [6] | ' |
Mark-to-market subtotal | -462 | -443 | ' | ||
Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -28 | 32 | ' | ||
Interest rate mark to market | 64 | 69 | ' | ||
Interest rate mark-to-market Subtotal | 36 | 37 | ' | ||
Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -30 | 32 | ' | ||
Interest rate mark to market | -58 | 48 | ' | ||
Interest rate mark-to-market Subtotal | -28 | 16 | ' | ||
Fair Value Inputs Level 1 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 1,034 | [1] | 1,230 | [1] | ' |
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | ' | -31 | ' | ||
Other investments | 13 | 0 | ' | ||
Deferred compensation | 0 | 0 | ' | ||
Total assets | 5,031 | 4,533 | ' | ||
Total liabilities | 2 | 1 | ' | ||
Total net assets | 5,033 | 4,534 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | 0 | ' | ||
Collateral received from counterparties, net of collateral paid to counterparties | 49 | 6 | ' | ||
Fair Value Inputs Level 1 [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 151 | 459 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 2,572 | 1,776 | ' | ||
Exchange traded funds | 164 | 115 | ' | ||
Commingled funds | 0 | ' | ' | ||
Equity securities subtotal | 2,736 | 1,891 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 990 | 882 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 0 | ' | ' | ||
Debt securities issued by foreign governments | 0 | ' | ' | ||
Corporate debt securities | 0 | ' | ' | ||
Federal agency mortgage-backed securities | 0 | ' | ' | ||
Commercial mortgage-backed securities (non-agency) | 0 | ' | ' | ||
Residential mortgage-backed securities (non-agency) | 0 | ' | ' | ||
Mutual funds fixed income | 0 | ' | ' | ||
Fixed income subtotal | 990 | 882 | ' | ||
Direct lending securities | 0 | ' | ' | ||
Other debt obligations | 0 | ' | ' | ||
Nuclear decommissioning trust fund investments subtotal | 3,877 | [2] | 3,232 | [2] | ' |
Fair Value Inputs Level 1 [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 4 | 16 | ' | ||
Equity securities subtotal | 4 | 16 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 12 | 45 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 0 | ' | ' | ||
Corporate debt securities | 0 | ' | ' | ||
Fixed income subtotal | 12 | 45 | ' | ||
Direct lending securities | 0 | ' | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 16 | [3] | 61 | [3] | ' |
Fair Value Inputs Level 1 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 2 | 2 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 43 | [4],[5] | 54 | [4],[5] | ' |
Rabbi trust investments subtotal | 45 | 56 | ' | ||
Fair Value Inputs Level 1 [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 434 | 493 | ' | ||
Proprietary trading | 178 | 324 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -569 | [6] | -863 | [6] | ' |
Mark-to-market subtotal | 43 | -46 | ' | ||
Fair Value Inputs Level 1 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | -434 | -540 | ' | ||
Proprietary trading | -182 | -328 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 618 | [6] | 869 | [6] | ' |
Mark-to-market subtotal | 2 | 1 | ' | ||
Fair Value Inputs Level 1 [Member] | Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -21 | -30 | ' | ||
Interest rate mark to market | 24 | 30 | ' | ||
Interest rate mark-to-market Subtotal | 3 | 0 | ' | ||
Fair Value Inputs Level 1 [Member] | Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | 24 | ' | ' | ||
Interest rate mark to market | -24 | 31 | ' | ||
Interest rate mark-to-market Subtotal | 0 | 0 | ' | ||
Fair Value Inputs Level 2 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | [1] | 0 | [1] | ' |
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -104 | -114 | ' | ||
Total assets | 6,795 | 5,575 | ' | ||
Total liabilities | -234 | -269 | ' | ||
Total net assets | 6,561 | 5,306 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 104 | 114 | ' | ||
Collateral received from counterparties, net of collateral paid to counterparties | 289 | -124 | ' | ||
Fair Value Inputs Level 2 [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 66 | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 0 | ' | ' | ||
Commingled funds | 2,529 | 2,271 | ' | ||
Equity securities subtotal | 2,529 | 2,271 | ' | ||
Balanced Funds - Commingled Funds | 273 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 0 | ' | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 416 | 294 | ' | ||
Debt securities issued by foreign governments | 114 | 87 | ' | ||
Corporate debt securities | 2,059 | 1,753 | ' | ||
Federal agency mortgage-backed securities | 84 | 10 | ' | ||
Commercial mortgage-backed securities (non-agency) | 43 | 40 | ' | ||
Residential mortgage-backed securities (non-agency) | 3 | 7 | ' | ||
Commingled funds fixed income | 325 | ' | ' | ||
Mutual funds fixed income | 18 | 18 | ' | ||
Fixed income subtotal | 3,062 | 2,209 | ' | ||
Direct lending securities | 0 | ' | ' | ||
Other debt obligations | 24 | 14 | ' | ||
Nuclear decommissioning trust fund investments subtotal | 5,954 | [2] | 4,494 | [2] | ' |
Fair Value Inputs Level 2 [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 45 | 26 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 2 | ' | ' | ||
Equity securities subtotal | 2 | 0 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 3 | 4 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 19 | 20 | ' | ||
Corporate debt securities | 172 | 227 | ' | ||
Commingled funds fixed income | 5 | ' | ' | ||
Fixed income subtotal | 199 | 251 | ' | ||
Direct lending securities | 0 | ' | ' | ||
Other debt obligations | ' | 1 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 246 | [3] | 278 | [3] | ' |
Fair Value Inputs Level 2 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 0 | [4],[5] | ' | ' | |
Rabbi trust investments subtotal | 0 | 0 | ' | ||
Fair Value Inputs Level 2 [Member] | Derivative Financial Instruments Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other investments | 0 | ' | ' | ||
Fair Value Inputs Level 2 [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 2,969 | 2,582 | ' | ||
Proprietary trading | 712 | 1,315 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -3,119 | [6] | -3,131 | [6] | ' |
Mark-to-market subtotal | 562 | 766 | ' | ||
Fair Value Inputs Level 2 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | -2,803 | -1,890 | ' | ||
Proprietary trading | -707 | -1,256 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 3,408 | [6] | 3,007 | [6] | ' |
Mark-to-market subtotal | -102 | -139 | ' | ||
Fair Value Inputs Level 2 [Member] | Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -7 | 2 | ' | ||
Interest rate mark to market | 40 | 39 | ' | ||
Interest rate mark-to-market Subtotal | 33 | 37 | ' | ||
Fair Value Inputs Level 2 [Member] | Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -6 | -1 | ' | ||
Interest rate mark to market | -34 | 17 | ' | ||
Interest rate mark-to-market Subtotal | -28 | 16 | ' | ||
Fair Value Inputs Level 3 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | [1] | 0 | [1] | ' |
Fixed income [Abstract] | ' | ' | ' | ||
Other investments | 10 | 15 | ' | ||
Deferred compensation | 0 | 0 | ' | ||
Total assets | 1,205 | 1,054 | ' | ||
Total liabilities | -362 | -305 | ' | ||
Total net assets | 843 | 749 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | 0 | ' | ||
Collateral received from counterparties, net of collateral paid to counterparties | 152 | -26 | ' | ||
Fair Value Inputs Level 3 [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 0 | 0 | ' | ||
Commingled funds | 0 | ' | ' | ||
Equity securities subtotal | 0 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 0 | ' | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 0 | ' | ' | ||
Debt securities issued by foreign governments | 0 | ' | ' | ||
Corporate debt securities | 181 | 31 | ' | ||
Federal agency mortgage-backed securities | 0 | ' | ' | ||
Commercial mortgage-backed securities (non-agency) | 0 | ' | ' | ||
Residential mortgage-backed securities (non-agency) | 0 | ' | ' | ||
Mutual funds fixed income | 0 | ' | ' | ||
Fixed income subtotal | 181 | 31 | ' | ||
Private equity | 35 | 5 | ' | ||
Direct lending securities | 376 | 314 | ' | ||
Other debt obligations | 0 | ' | ' | ||
Nuclear decommissioning trust fund investments subtotal | 592 | [2] | 350 | [2] | ' |
Fair Value Inputs Level 3 [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities subtotal | ' | 0 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 0 | ' | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 0 | ' | ' | ||
Corporate debt securities | 0 | ' | ' | ||
Fixed income subtotal | 0 | 0 | ' | ||
Direct lending securities | 133 | 112 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 133 | [3] | 112 | [3] | ' |
Fair Value Inputs Level 3 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 0 | [4],[5] | ' | ' | |
Rabbi trust investments subtotal | 0 | 0 | ' | ||
Fair Value Inputs Level 3 [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 1,413 | 885 | ' | ||
Proprietary trading | 184 | 122 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -1,127 | [6] | -430 | [6] | ' |
Mark-to-market subtotal | 470 | 577 | ' | ||
Fair Value Inputs Level 3 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | -1,465 | -590 | ' | ||
Proprietary trading | -176 | -119 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 1,279 | [6] | 404 | [6] | ' |
Mark-to-market subtotal | -362 | -305 | ' | ||
Fair Value Inputs Level 3 [Member] | Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Interest rate mark to market | 0 | ' | ' | ||
Interest rate mark-to-market Subtotal | 0 | 0 | ' | ||
Fair Value Inputs Level 3 [Member] | Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Interest rate mark to market | 0 | ' | ' | ||
Interest rate mark-to-market Subtotal | 0 | 0 | ' | ||
Exelon Generation Co L L C [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 65 | 1,006 | [1] | ' | |
Fixed income [Abstract] | ' | ' | ' | ||
Other investments | 23 | 15 | ' | ||
Deferred compensation | -29 | -29 | ' | ||
Total assets | 12,014 | 10,888 | ' | ||
Total liabilities | -379 | -291 | ' | ||
Total net assets | 11,635 | 10,597 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 29 | 29 | ' | ||
Mark-to-market derivative liabilities (current liabilities) | 215 | 142 | ' | ||
Mark-to-market derivative liabilities (noncurrent liabilities) | 135 | 120 | ' | ||
Exelon Generation Co L L C [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 217 | 459 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 2,572 | 1,776 | ' | ||
Exchange traded funds | 164 | 115 | ' | ||
Commingled funds | 2,529 | 2,271 | ' | ||
Equity securities subtotal | 5,265 | 4,162 | ' | ||
Balanced Funds - Commingled Funds | 273 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 990 | 882 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 416 | 294 | ' | ||
Debt securities issued by foreign governments | 114 | 87 | ' | ||
Corporate debt securities | 2,240 | 1,784 | ' | ||
Federal agency mortgage-backed securities | 84 | 10 | ' | ||
Commercial mortgage-backed securities (non-agency) | 43 | 40 | ' | ||
Residential mortgage-backed securities (non-agency) | 3 | 7 | ' | ||
Commingled funds fixed income | 325 | ' | ' | ||
Mutual funds fixed income | 18 | 18 | ' | ||
Fixed income subtotal | 4,233 | 3,122 | ' | ||
Private equity | 35 | 5 | ' | ||
Direct lending securities | 376 | 314 | ' | ||
Other debt obligations | 24 | 14 | ' | ||
Nuclear decommissioning trust fund investments subtotal | 10,423 | [2] | 8,076 | [2] | ' |
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Net assets (liabilities) excluded from nuclear decommissioning trust fund investments | 14 | -5 | ' | ||
Exelon Generation Co L L C [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 45 | 26 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 6 | 16 | ' | ||
Equity securities subtotal | 6 | 16 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 15 | 49 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 19 | 20 | ' | ||
Corporate debt securities | 172 | 227 | ' | ||
Commingled funds fixed income | 5 | ' | ' | ||
Fixed income subtotal | 211 | 296 | ' | ||
Direct lending securities | 133 | 112 | ' | ||
Other debt obligations | ' | 1 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 395 | [3] | 451 | [3] | ' |
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Net assets (liabilities) excluded from nuclear decommissioning trust fund investments | 7 | 7 | ' | ||
Exelon Generation Co L L C [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 1 | 0 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 14 | [7] | 13 | [7] | ' |
Rabbi trust investments subtotal | 15 | 13 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash surrender value of life insurance investments excluded from Rabbi Trust investments | 10 | 10 | ' | ||
Exelon Generation Co L L C [Member] | Derivative Financial Instruments Assets [Member] | ' | ' | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Fair value swap contract current asset | 0 | 0 | ' | ||
Fair value swap contract noncurrent asset | 0 | 0 | ' | ||
Exelon Generation Co L L C [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 4,816 | 3,960 | ' | ||
Proprietary trading | 1,074 | 1,761 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -4,815 | [6] | -4,424 | [6] | ' |
Mark-to-market subtotal | 1,075 | 1,297 | ' | ||
Exelon Generation Co L L C [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Cash flow hedges | 0 | ' | ' | ||
Other derivatives | -4,568 | -2,827 | ' | ||
Proprietary trading | -1,065 | -1,703 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 5,305 | [6] | 4,280 | [6] | ' |
Mark-to-market subtotal | -328 | -250 | ' | ||
Exelon Generation Co L L C [Member] | Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | 28 | 32 | ' | ||
Interest rate mark to market | 46 | 62 | ' | ||
Interest rate mark-to-market Subtotal | 18 | 30 | ' | ||
Exelon Generation Co L L C [Member] | Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -30 | -32 | ' | ||
Interest rate mark to market | -52 | -44 | ' | ||
Interest rate mark-to-market Subtotal | -22 | -12 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 65 | 1,006 | [1] | ' | |
Fixed income [Abstract] | ' | ' | ' | ||
Other investments | 13 | 0 | ' | ||
Deferred compensation | 0 | ' | ' | ||
Total assets | 4,032 | 4,266 | ' | ||
Total liabilities | 2 | 1 | ' | ||
Total net assets | 4,034 | 4,267 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | ' | ' | ||
Collateral received from counterparties, net of collateral paid to counterparties | 49 | 6 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 151 | 459 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 2,572 | 1,776 | ' | ||
Exchange traded funds | 164 | 115 | ' | ||
Commingled funds | 0 | ' | ' | ||
Equity securities subtotal | 2,736 | ' | 1,891 | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 990 | 882 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 0 | ' | ' | ||
Fixed income subtotal | 990 | 882 | ' | ||
Other debt obligations | 0 | ' | ' | ||
Nuclear decommissioning trust fund investments subtotal | 3,877 | [2] | 3,232 | [2] | ' |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 4 | 16 | ' | ||
Equity securities subtotal | 4 | 16 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 12 | 45 | ' | ||
Fixed income subtotal | 12 | 45 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 16 | [3] | 61 | [3] | ' |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 1 | 0 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 14 | [7] | 13 | [7] | ' |
Rabbi trust investments subtotal | 15 | 13 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 434 | 493 | ' | ||
Proprietary trading | 178 | 324 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -569 | [6] | -863 | [6] | ' |
Mark-to-market subtotal | 43 | -46 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Cash flow hedges | 0 | ' | ' | ||
Other derivatives | -434 | -540 | ' | ||
Proprietary trading | -182 | -328 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 618 | [6] | 869 | [6] | ' |
Mark-to-market subtotal | 2 | 1 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | 21 | 30 | ' | ||
Interest rate mark to market | 24 | 30 | ' | ||
Interest rate mark-to-market Subtotal | 3 | ' | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 1 [Member] | Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -24 | -31 | ' | ||
Interest rate mark to market | -24 | -31 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | 0 | [1] | ' | |
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -29 | -29 | ' | ||
Total assets | 6,777 | 5,568 | ' | ||
Total liabilities | -153 | -180 | ' | ||
Total net assets | 6,624 | 5,388 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 29 | 29 | ' | ||
Collateral received from counterparties, net of collateral paid to counterparties | 289 | -124 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 66 | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 0 | ' | ' | ||
Commingled funds | 2,529 | 2,271 | ' | ||
Equity securities subtotal | 2,529 | 2,271 | ' | ||
Balanced Funds - Commingled Funds | 273 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 0 | ' | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 416 | 294 | ' | ||
Debt securities issued by foreign governments | 114 | 87 | ' | ||
Corporate debt securities | 2,059 | 1,753 | ' | ||
Federal agency mortgage-backed securities | 84 | 10 | ' | ||
Commercial mortgage-backed securities (non-agency) | 43 | 40 | ' | ||
Residential mortgage-backed securities (non-agency) | 3 | 7 | ' | ||
Commingled funds fixed income | 325 | ' | ' | ||
Mutual funds fixed income | 18 | 18 | ' | ||
Fixed income subtotal | 3,062 | 2,209 | ' | ||
Other debt obligations | 24 | 14 | ' | ||
Nuclear decommissioning trust fund investments subtotal | 5,954 | [2] | 4,494 | [2] | ' |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 45 | 26 | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 2 | ' | ' | ||
Equity securities subtotal | 2 | 0 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 3 | 4 | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 19 | 20 | ' | ||
Corporate debt securities | 172 | 227 | ' | ||
Commingled funds fixed income | 5 | ' | ' | ||
Fixed income subtotal | 199 | 251 | ' | ||
Direct lending securities | 0 | ' | ' | ||
Other debt obligations | ' | 1 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 246 | [3] | 278 | [3] | ' |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Rabbi trust investments subtotal | ' | 0 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 2,969 | 2,582 | ' | ||
Proprietary trading | 712 | 1,315 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -3,119 | [6] | -3,131 | [6] | ' |
Mark-to-market subtotal | 562 | 766 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Cash flow hedges | 0 | ' | ' | ||
Other derivatives | -2,803 | -1,890 | ' | ||
Proprietary trading | -707 | -1,256 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 3,408 | [6] | 3,007 | [6] | ' |
Mark-to-market subtotal | -102 | -139 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Interest Rate Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | 7 | 2 | ' | ||
Interest rate mark to market | 22 | 32 | ' | ||
Interest rate mark-to-market Subtotal | 15 | 30 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 2 [Member] | Interest Rate Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Effect of netting and allocation of collateral received/(paid) | -6 | -1 | ' | ||
Interest rate mark to market | -28 | -13 | ' | ||
Interest rate mark-to-market Subtotal | -22 | -12 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 0 | 0 | [1] | ' | |
Equity Securities [Abstract] | ' | ' | ' | ||
Equity securities | 0 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other investments | 10 | 15 | ' | ||
Deferred compensation | 0 | ' | ' | ||
Total assets | 1,205 | 1,054 | ' | ||
Total liabilities | -228 | -112 | ' | ||
Total net assets | 977 | 942 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | ' | ' | ||
Collateral received from counterparties, net of collateral paid to counterparties | 152 | -26 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Nuclear Decommissioning Trust Fund Investments [Member] | ' | ' | ' | ||
Equity Securities [Abstract] | ' | ' | ' | ||
Commingled funds | 0 | ' | ' | ||
Equity securities subtotal | 0 | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | 0 | ' | ' | ||
Debt securities issued by states of the United States and political subdivisions of the states | 0 | ' | ' | ||
Corporate debt securities | 181 | 31 | ' | ||
Mutual funds fixed income | 0 | ' | ' | ||
Fixed income subtotal | 181 | 31 | ' | ||
Private equity | 35 | 5 | ' | ||
Direct lending securities | 376 | 314 | ' | ||
Other debt obligations | 0 | ' | ' | ||
Nuclear decommissioning trust fund investments subtotal | 592 | [2] | 350 | [2] | ' |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Pledged Assets For Zion Station Decommissioning [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Direct lending securities | 133 | 112 | ' | ||
Pledged assets for Zion Station decommissioning subtotal | 133 | [3] | 112 | [3] | ' |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Rabbi trust investments subtotal | ' | 0 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Commodity Mark To Market Derivative Assets [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Other derivatives | 1,413 | 885 | ' | ||
Proprietary trading | 184 | 122 | ' | ||
Effect of netting and allocation of collateral received/(paid) | -1,127 | [6] | -430 | [6] | ' |
Mark-to-market subtotal | 470 | 577 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Cash flow hedges | 0 | ' | ' | ||
Other derivatives | -1,331 | -397 | ' | ||
Proprietary trading | -176 | -119 | ' | ||
Effect of netting and allocation of collateral received/(paid) | 1,279 | [6] | 404 | [6] | ' |
Mark-to-market subtotal | -228 | -112 | ' | ||
Commonwealth Edison Co [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -8 | -8 | ' | ||
Total assets | 1 | 5 | ' | ||
Total liabilities | -142 | -201 | ' | ||
Total net assets | -141 | -196 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 8 | 8 | ' | ||
Mark-to-market derivative liabilities (current liabilities) | 13 | 17 | ' | ||
Mark-to-market derivative liabilities (noncurrent liabilities) | 121 | 176 | ' | ||
Commonwealth Edison Co [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 1 | 5 | ' | ||
Rabbi trust investments subtotal | 1 | 5 | ' | ||
Commonwealth Edison Co [Member] | Derivative Financial Instruments Assets [Member] | ' | ' | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Fair value swap contract current asset | 0 | 0 | ' | ||
Fair value swap contract noncurrent asset | 0 | 0 | ' | ||
Commonwealth Edison Co [Member] | Derivative Financial Instruments Liabilities [Member] | ' | ' | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Fair value of energy swap contract current liability | 13 | 17 | ' | ||
Fair value of energy swap contract noncurrent liability | 121 | 176 | ' | ||
Commonwealth Edison Co [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mark-to-market subtotal | 134 | [8] | 193 | [8] | ' |
Commonwealth Edison Co [Member] | Fair Value Inputs Level 1 [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | ' | ' | ||
Total assets | 1 | 5 | ' | ||
Total liabilities | 0 | 0 | ' | ||
Total net assets | 1 | 5 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | ' | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 1 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 1 | 5 | ' | ||
Rabbi trust investments subtotal | 1 | 5 | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 1 [Member] | Derivative Financial Instruments Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mark-to-market subtotal | 0 | [8] | ' | ' | |
Commonwealth Edison Co [Member] | Fair Value Inputs Level 2 [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -8 | -8 | ' | ||
Total assets | 0 | 0 | ' | ||
Total liabilities | -8 | -8 | ' | ||
Total net assets | -8 | -8 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 8 | 8 | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 2 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 0 | ' | ' | ||
Rabbi trust investments subtotal | 0 | 0 | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 2 [Member] | Derivative Financial Instruments Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mark-to-market subtotal | 0 | [8] | ' | ' | |
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | ' | ' | ||
Total assets | 0 | 0 | ' | ||
Total liabilities | -134 | -193 | ' | ||
Total net assets | -134 | -193 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 0 | ' | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 0 | ' | ' | ||
Rabbi trust investments subtotal | 0 | 0 | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Commodity Mark To Market Derivative Liabilities [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mark-to-market subtotal | 134 | [8] | 193 | [8] | ' |
PECO Energy Co [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 50 | 175 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -15 | -17 | ' | ||
Total assets | 59 | 184 | ' | ||
Total liabilities | -15 | -17 | ' | ||
Total net assets | 44 | 167 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 15 | 17 | ' | ||
PECO Energy Co [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 9 | 9 | ' | ||
Rabbi trust investments subtotal | 9 | [10],[9] | 9 | [10],[9] | ' |
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash surrender value of life insurance investments excluded from Rabbi Trust investments | 14 | 14 | ' | ||
PECO Energy Co [Member] | Fair Value Inputs Level 1 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 50 | 175 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Total assets | 59 | 184 | ' | ||
Total net assets | 59 | 184 | ' | ||
PECO Energy Co [Member] | Fair Value Inputs Level 1 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 9 | 9 | ' | ||
Rabbi trust investments subtotal | 9 | [10],[9] | 9 | [10],[9] | ' |
PECO Energy Co [Member] | Fair Value Inputs Level 2 [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -15 | -17 | ' | ||
Total liabilities | -15 | -17 | ' | ||
Total net assets | -15 | -17 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 15 | 17 | ' | ||
PECO Energy Co [Member] | Fair Value Inputs Level 2 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | ' | 0 | ' | ||
PECO Energy Co [Member] | Fair Value Inputs Level 3 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | ' | 0 | ' | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 53 | 31 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Deferred compensation | -5 | -6 | ' | ||
Total assets | 58 | 37 | ' | ||
Total liabilities | -5 | -6 | ' | ||
Total net assets | 53 | 31 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 5 | 6 | ' | ||
Baltimore Gas and Electric Company [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 5 | 6 | ' | ||
Rabbi trust investments subtotal | 5 | 6 | [9] | ' | |
Baltimore Gas and Electric Company [Member] | Fair Value Inputs Level 1 [Member] | ' | ' | ' | ||
Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Cash equivalents | 53 | 31 | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Total assets | 58 | 37 | ' | ||
Total net assets | 58 | 37 | ' | ||
Baltimore Gas and Electric Company [Member] | Fair Value Inputs Level 1 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 5 | 6 | ' | ||
Rabbi trust investments subtotal | 5 | 6 | [9] | ' | |
Baltimore Gas and Electric Company [Member] | Fair Value Inputs Level 2 [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Rabbi trust investments subtotal | 0 | ' | ' | ||
Deferred compensation | -5 | -6 | ' | ||
Total assets | 0 | ' | ' | ||
Total liabilities | -5 | -6 | ' | ||
Total net assets | -5 | -6 | ' | ||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis [Abstract] | ' | ' | ' | ||
Deferred compensation | 5 | 6 | ' | ||
Baltimore Gas and Electric Company [Member] | Fair Value Inputs Level 2 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 0 | ' | ' | ||
Rabbi trust investments subtotal | 0 | ' | ' | ||
Baltimore Gas and Electric Company [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Rabbi trust investments subtotal | 0 | ' | ' | ||
Total assets | 0 | ' | ' | ||
Total net assets | 0 | ' | ' | ||
Baltimore Gas and Electric Company [Member] | Fair Value Inputs Level 3 [Member] | Rabbi Trust Investments [Member] | ' | ' | ' | ||
Fixed income [Abstract] | ' | ' | ' | ||
Mutual funds | 0 | ' | ' | ||
Rabbi trust investments subtotal | $0 | ' | ' | ||
[1] | Excludes certain cash equivalents considered to be held-to-maturity and not reported at fair value. | ||||
[2] | Excludes net assets (liabilities) of $14 million and $(5) million at June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | ||||
[3] | Excludes net assets of $7 million at both June 30, 2014 and December 31, 2013, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, and payables related to pending securities purchases. | ||||
[4] | The mutual funds held by the Rabbi trusts include $42 million related to deferred compensation and $1 million related to Supplemental Executive Retirement Plan at June 30, 2014, and $53 million related to deferred compensation and $1 million related to Supplemental Executive Retirement Plan at December 31, 2013. | ||||
[5] | Excludes $34 million and $32 million of the cash surrender value of life insurance investments at June 30, 2014 and December 31, 2013, respectively. | ||||
[6] | Includes collateral postings to counterparties. Collateral posted to counterparties, net of collateral paid to counterparties, totaled $49 million, $289 million and $152 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of June 30, 2014. Collateral posted (received) from counterparties, net of collateral paid to counterparties, totaled $6 million, $(124) million and $(26) million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2013. | ||||
[7] | Excludes $10 million of the cash surrender value of life insurance investments at both June 30, 2014 and December 31, 2013. | ||||
[8] | The Level 3 balance includes the current and noncurrent liability of $13 million and $121 million at June 30, 2014, respectively, and $17 million and $176 million at December 31, 2013, respectively, related to floating-to-fixed energy swap contracts with unaffiliated suppliers. | ||||
[9] | Excludes $14 million of the cash surrender value of life insurance investments at both June 30, 2014 and December 31, 2013. | ||||
[10] | B B |
Fair_Value_of_Financial_Assets5
Fair Value of Financial Assets and Liabilities (Fair Value Assets Liabilities Measured On Recurring Basis Unobservable Input Reconciliation) (Details) (USD $) | 3 Months Ended | 6 Months Ended | ||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | ||||
Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | $752 | $583 | $749 | $656 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in income | -46 | 159 | -357 | 33 | ||||
Included in payable for Zion Station decommissioning | 4 | ' | 4 | 1 | ||||
Included in regulatory assets | 42 | -2 | 70 | -9 | ||||
Change in collateral | 34 | 10 | 178 | 43 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 127 | 61 | 308 | 110 | ||||
Sales | -26 | -20 | -33 | -41 | ||||
Settlements | -12 | 3 | -19 | ' | ||||
Transfers into Level 3 - (Asset) / Liability | -4 | 3 | -30 | 7 | ||||
Transfers out of Level 3 - (Asset) / Liability | -28 | 1 | -27 | 1 | ||||
Ending balance | 843 | 793 | 843 | 793 | ||||
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities | 21 | 188 | -425 | 109 | ||||
Nuclear Decommissioning Trust Fund Investment Level Three Asset [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 486 | 210 | 350 | 183 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in income | 2 | ' | 3 | ' | ||||
Included in regulatory assets | 8 | 8 | 11 | 9 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 109 | 35 | 249 | 67 | ||||
Sales | -1 | ' | -2 | ' | ||||
Settlements | -12 | ' | -19 | ' | ||||
Ending balance | 592 | 240 | 592 | 240 | ||||
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities | 2 | ' | 2 | ' | ||||
Pledged Assets For Zion Station Decommissioning [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 137 | 104 | 112 | 89 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in payable for Zion Station decommissioning | 4 | 1 | 4 | 1 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 13 | 11 | 42 | 33 | ||||
Sales | -21 | -5 | -25 | -12 | ||||
Ending balance | 133 | 111 | 133 | 111 | ||||
Derivative [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 119 | 260 | 272 | 367 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in income | -48 | [1] | 158 | [2] | -360 | [1] | 31 | [2] |
Included in regulatory assets | 34 | -10 | [3] | 59 | -18 | [3] | ||
Change in collateral | 34 | 10 | 178 | 43 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 5 | ' | 15 | 8 | [4] | |||
Sales | -4 | ' | -6 | ' | ||||
Transfers into Level 3 - (Asset) / Liability | -4 | 3 | -30 | 7 | ||||
Transfers out of Level 3 - (Asset) / Liability | -28 | 1 | -20 | 1 | ||||
Ending balance | 108 | 431 | 108 | 431 | ||||
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities | 19 | 187 | -427 | 108 | ||||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Gain (loss) reclassified to results of operating due to the settlement of derivative contracts | -67 | -55 | 67 | -140 | ||||
Increase (decrease) in fair value related to the swap contract | -3 | -35 | -11 | -86 | ||||
Realized gains (losses) related to swap contract with unaffiliated parties | -82 | -119 | -215 | -427 | ||||
Fair value of Constellation fair value assets acquired | ' | 10 | ' | 10 | ||||
Other Investments [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 10 | 9 | 15 | ' | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 0 | 2 | 2 | 2 | ||||
Sales | ' | ' | 0 | ' | ||||
Ending balance | 10 | 11 | 10 | 11 | ||||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 920 | 743 | 942 | 949 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in income | -46 | 169 | -357 | 26 | ||||
Included in other comprehensive income | 0 | -95 | 0 | -219 | ||||
Included in payable for Zion Station decommissioning | 4 | 1 | 4 | 1 | ||||
Included in noncurrent payables to affiliates | -8 | -8 | 11 | -9 | ||||
Change in collateral | 34 | 10 | 178 | 43 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 127 | 61 | 308 | 110 | ||||
Sales | -26 | -20 | -33 | -41 | ||||
Settlements | -12 | ' | -19 | ' | ||||
Transfers into Level 3 - (Asset) / Liability | -4 | 3 | -30 | 7 | ||||
Transfers out of Level 3 - (Asset) / Liability | -28 | 1 | -27 | 1 | ||||
Ending balance | 977 | 878 | 977 | 878 | ||||
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities | 21 | 184 | -425 | 98 | ||||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Fair value of Constellation fair value assets acquired | 310 | ' | 310 | ' | ||||
Acquisition of marketable securities | 14 | ' | 14 | ' | ||||
Exelon Generation Co L L C [Member] | Nuclear Decommissioning Trust Fund Investment Level Three Asset [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 486 | 210 | 350 | 183 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in income | 2 | ' | 3 | ' | ||||
Included in noncurrent payables to affiliates | -8 | -8 | 11 | -9 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 109 | 35 | 249 | 67 | ||||
Sales | -1 | ' | -2 | ' | ||||
Settlements | -12 | ' | -19 | ' | ||||
Ending balance | 592 | 240 | 592 | 240 | ||||
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities | 2 | ' | 2 | ' | ||||
Exelon Generation Co L L C [Member] | Pledged Assets For Zion Station Decommissioning [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 137 | 104 | 112 | 89 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in payable for Zion Station decommissioning | 4 | 1 | 4 | 1 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 13 | 11 | 42 | 33 | ||||
Sales | -21 | -5 | -25 | -12 | ||||
Ending balance | 133 | 111 | 133 | 111 | ||||
Exelon Generation Co L L C [Member] | Derivative [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 287 | 420 | 465 | 660 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in income | -48 | [5] | 168 | [6] | -360 | [7] | 24 | [2] |
Included in other comprehensive income | 0 | -95 | [3] | 0 | [7] | -219 | [3] | |
Change in collateral | 34 | 10 | 178 | 43 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 5 | ' | 15 | 8 | [4] | |||
Sales | -4 | ' | -6 | ' | ||||
Transfers into Level 3 - (Asset) / Liability | -4 | 3 | -30 | 7 | ||||
Transfers out of Level 3 - (Asset) / Liability | -28 | 1 | -20 | 1 | ||||
Ending balance | 242 | 516 | 242 | 516 | ||||
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities | 19 | 183 | -427 | 97 | ||||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Gain (loss) reclassified to results of operating due to the settlement of derivative contracts | -67 | -15 | 67 | -73 | ||||
Increase (decrease) in fair value related to the swap contract | 0 | -3 | 0 | 11 | ||||
Realized gains (losses) related to swap contract | 0 | -82 | 0 | -215 | ||||
Fair value of Constellation fair value assets acquired | ' | 10 | ' | 10 | ||||
Payment For Purchase Contracts | 10 | ' | 10 | ' | ||||
Exelon Generation Co L L C [Member] | Other Investments [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | 10 | 9 | 15 | ' | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Purchases | 0 | 2 | 2 | 2 | ||||
Sales | ' | ' | 0 | ' | ||||
Ending balance | 10 | 11 | 10 | 11 | ||||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ||||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Increase (decrease) in fair value related to the swap contract | ' | 7 | ' | 5 | ||||
Realized gains (losses) related to swap contract | ' | 88 | ' | 309 | ||||
Realized gains (losses) related to swap contract with unaffiliated parties | -1 | ' | -2 | ' | ||||
Increase (decrease) in fair value related to floating-to-fixed energy swap contracts | ' | -19 | ' | -54 | ||||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Beginning balance | -168 | -160 | -193 | -293 | ||||
Total realized / unrealized gains (losses) | ' | ' | ' | ' | ||||
Included in regulatory assets | -34 | 75 | 59 | 208 | ||||
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Purchases Sales Issuances Settlements [Abstract] | ' | ' | ' | ' | ||||
Ending balance | -134 | -85 | -134 | -85 | ||||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Increase (decrease) in fair value related to the swap contract | ' | -3 | ' | 11 | ||||
Realized gains (losses) related to swap contract | ' | -82 | ' | -215 | ||||
Increase (decrease) in fair value related to floating-to-fixed energy swap contracts | ' | -9 | ' | ' | ||||
Commonwealth Edison Co [Member] | Derivative [Member] | Fair Value Inputs Level 3 [Member] | ' | ' | ' | ' | ||||
Footnotes To Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract] | ' | ' | ' | ' | ||||
Increase (decrease) in fair value related to the swap contract | 0 | ' | 0 | ' | ||||
Realized gains (losses) related to swap contract | 0 | ' | 0 | ' | ||||
Increase (decrease) in fair value related to floating-to-fixed energy swap contracts | ($34) | ' | $64 | ' | ||||
[1] | Includes the increase for the reclassification of $67 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three months ended June 30, 2014. | |||||||
[2] | Includes the reclassification of $29 million and $77 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2013, respectively. | |||||||
[3] | B Excludes decreases in fair value of $3 million and $11 million and realized losses reclassified due to settlements of $82 million and $215 million associated with Generationbs financial swap contract with ComEd for the three and six months ended June 30, 2013. All items eliminate upon consolidation in Exelonbs Consolidated Financial Statements. | |||||||
[4] | Includes $10 million which Generation was paid to enter into out of the money purchase contracts. | |||||||
[5] | Includes the reclassification of $##D<gqtdreclasssettlement> million and $##D<gytdreclasssettlement> million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and ##D<curmonth> months ended ##D<cyperiod>, respectively | |||||||
[6] | ) B B B B B B B B Includes the reclassification of $15 million and $73 million of realized losses due to the settlement of derivative contracts recorded in results of operations for the three and six months ended June 30, 2013, respectively. | |||||||
[7] | Includes $##D<gcomedfvpretaxqtd> million of decreases in fair value and $121 million of increases in fair value and realized losses due to settlements of $##D<gcomedreclassqtd> million and $308 million associated with Generation's financial swap contract with ComEd for the ##D<threemonth> and ##D<curmonth> months ended ##D<cyperiod>, respectively. This position was de-designated as a cash flow hedge prior to the merger date. All prospective changes in fair value and reclassifications of realized amounts are being recorded to income offset by the amortization of the frozen mark in OCI. All items eliminate upon consolidation in Exelon's Consolidated Financial Statements |
Fair_Value_of_Financial_Assets6
Fair Value of Financial Assets and Liabilities (Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings) (Details) (Fair Value Inputs Level 3 [Member], USD $) | 3 Months Ended | 6 Months Ended | ||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 |
Operating Revenue [Member] | ' | ' | ' | ' |
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items] | ' | ' | ' | ' |
Total gains (losses) included in income | ($62) | $137 | ($330) | ($22) |
Change in the unrealized gains (losses) relating to assets and liabilities held | -10 | 156 | -435 | 39 |
Purchased Fuel and Electric [Member] | ' | ' | ' | ' |
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items] | ' | ' | ' | ' |
Total gains (losses) included in income | 14 | 21 | -30 | 53 |
Change in the unrealized gains (losses) relating to assets and liabilities held | 29 | 31 | 8 | 69 |
Other, net [Member] | ' | ' | ' | ' |
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items] | ' | ' | ' | ' |
Total gains (losses) included in income | 2 | 1 | 3 | 2 |
Change in the unrealized gains (losses) relating to assets and liabilities held | 2 | 1 | 2 | 1 |
Exelon Generation Co L L C [Member] | Operating Revenue [Member] | ' | ' | ' | ' |
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items] | ' | ' | ' | ' |
Total gains (losses) included in income | -62 | 148 | -330 | -28 |
Change in the unrealized gains (losses) relating to assets and liabilities held | -10 | 153 | -435 | 29 |
Exelon Generation Co L L C [Member] | Purchased Fuel and Electric [Member] | ' | ' | ' | ' |
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items] | ' | ' | ' | ' |
Total gains (losses) included in income | 14 | 20 | -30 | 52 |
Change in the unrealized gains (losses) relating to assets and liabilities held | 29 | 30 | 8 | 68 |
Exelon Generation Co L L C [Member] | Other, net [Member] | ' | ' | ' | ' |
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items] | ' | ' | ' | ' |
Total gains (losses) included in income | 2 | 1 | 3 | 2 |
Change in the unrealized gains (losses) relating to assets and liabilities held | $2 | $1 | $2 | $1 |
Fair_Value_of_Financial_Assets7
Fair Value of Financial Assets and Liabilities (Fair Value Inputs Assets Quantitative Information) (Details) (USD $) | 6 Months Ended | 12 Months Ended | ||
Jun. 30, 2014 | Dec. 31, 2013 | |||
Derivatives Fair Value [Line Items] | ' | ' | ||
Forward Power Basis | 2.57 | ' | ||
Forward Gas Basis | 0.41 | ' | ||
Derivatives Fair Value Footnotes [Abstract] | ' | ' | ||
Cash collateral excluded | 152,000,000 | ' | ||
Fair Value Inputs Level 3 [Member] | ' | ' | ||
Derivatives Fair Value Footnotes [Abstract] | ' | ' | ||
Cash collateral excluded | ' | 26,000,000 | ||
Exelon Generation Co L L C [Member] | ' | ' | ||
Derivatives Fair Value Footnotes [Abstract] | ' | ' | ||
Outstanding Commitments to invest | 430,000,000 | ' | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | ' | ' | ||
Derivatives Fair Value [Line Items] | ' | ' | ||
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | 82,000,000 | [1] | 488,000,000 | [2] |
Derivatives Fair Value Footnotes [Abstract] | ' | ' | ||
Fair value swap contract current asset | ' | 226,000,000 | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Discounted Cash Flow [Member] | Minimum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Forward power price assets | 16,000,000 | 8,000,000 | [3] | |
Forward gas price assets | 2.19 | 2.98 | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Discounted Cash Flow [Member] | Maximum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Forward power price assets | 170,000,000 | 176,000,000 | [3] | |
Forward gas price assets | 19.84 | 16.63 | [3] | |
Renewable factor | ' | 128.00% | ||
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Option Model Valuation Technique [Member] | Minimum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Volatility percentage | 8.00% | 15.00% | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Option Model Valuation Technique [Member] | Maximum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Volatility percentage | 260.00% | 142.00% | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Proprietary Trading [Member] | ' | ' | ||
Derivatives Fair Value [Line Items] | ' | ' | ||
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | ' | -3,000,000 | [2] | |
Derivative Liability, Fair Value, Amount Not Offset Against Collateral | -8,000,000 | [1] | ' | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Proprietary Trading [Member] | Discounted Cash Flow [Member] | Minimum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Forward power price assets | -13,000,000 | -10,000,000 | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Proprietary Trading [Member] | Discounted Cash Flow [Member] | Maximum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Forward power price assets | -168,000,000 | -176,000,000 | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Proprietary Trading [Member] | Option Model Valuation Technique [Member] | Minimum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Volatility percentage | 8.00% | 14.00% | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Proprietary Trading [Member] | Option Model Valuation Technique [Member] | Maximum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Volatility percentage | 260.00% | 19.00% | [3] | |
Exelon Generation Co L L C [Member] | Fair Value Inputs Level 3 [Member] | Business Intersegment Transactions [Member] | ' | ' | ||
Derivatives Fair Value Footnotes [Abstract] | ' | ' | ||
Fair value swap contract current asset | 0 | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | ' | ' | ||
Derivatives Fair Value [Line Items] | ' | ' | ||
Derivative Liability, Fair Value, Amount Not Offset Against Collateral | 134,000,000 | [1] | ' | |
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Discounted Cash Flow [Member] | ' | ' | ||
Derivatives Fair Value [Line Items] | ' | ' | ||
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | ' | 193,000,000 | [2] | |
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Discounted Cash Flow [Member] | Minimum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Marketability Reserve | 3.50% | 3.50% | ||
Forward heat rate | -8.00% | -8.00% | [4] | |
Renewable factor | 86.00% | 84.00% | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Derivative [Member] | Discounted Cash Flow [Member] | Maximum [Member] | ' | ' | ||
Fair Value Inputs [Abstract] | ' | ' | ||
Marketability Reserve | 8.00% | 8.00% | ||
Forward heat rate | -9.00% | -9.00% | [4] | |
Renewable factor | 123.00% | ' | ||
Commonwealth Edison Co [Member] | Fair Value Inputs Level 3 [Member] | Business Intersegment Transactions [Member] | ' | ' | ||
Derivatives Fair Value Footnotes [Abstract] | ' | ' | ||
Fair value swap contract current liability | 0 | ' | ||
[1] | The fair values do not include cash collateral held on level three positions of $152 million as of June 30, 2014. | |||
[2] | The fair values do not include cash collateral held on level three positions of $26 million as of December 31, 2013 The upper ends of the ranges are driven by the winter power and gas prices in the New England region. Without the New England region, the upper ends of the ranges for power and gas would be approximately $100 and $5.70, respectively. | |||
[3] | B B B B B B B B B B B B B B B B The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions. | |||
[4] | Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contractbs delivery. |
Derivative_Financial_Instrumen2
Derivative Financial Instruments (Commodity Price Risk) (Details) | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | |
GWh | GWh | GWh | GWh | |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' |
Proprietary Trading Volumes [Abstract] | ' | ' | ' | ' |
Proprietary trading activities volume | 2,629 | 1,995 | 5,123 | 3,567 |
Exelon Generation Co L L C [Member] | Minimum [Member] | ' | ' | ' | ' |
Percent Of Expected Generation Being Hedged [Abstract] | ' | ' | ' | ' |
Expected generation hedged in next twelve months | ' | ' | 92.00% | ' |
Expected generation hedged in year two | ' | ' | 75.00% | ' |
Expected generation hedged in year three | ' | ' | 46.00% | ' |
Exelon Generation Co L L C [Member] | Maximum [Member] | ' | ' | ' | ' |
Percent Of Expected Generation Being Hedged [Abstract] | ' | ' | ' | ' |
Expected generation hedged in next twelve months | ' | ' | 95.00% | ' |
Expected generation hedged in year two | ' | ' | 78.00% | ' |
Expected generation hedged in year three | ' | ' | 49.00% | ' |
PECO Energy Co [Member] | ' | ' | ' | ' |
Percent Of Gas Purchases Being Hedged [Abstract] | ' | ' | ' | ' |
Estimated percentage of natural gas purchases hedged | ' | ' | 30.00% | ' |
Baltimore Gas and Electric Company [Member] | Minimum [Member] | ' | ' | ' | ' |
Percent Of Gas Purchases Being Hedged [Abstract] | ' | ' | ' | ' |
Estimated percentage of natural gas purchases hedged | ' | ' | 10.00% | ' |
Baltimore Gas and Electric Company [Member] | Maximum [Member] | ' | ' | ' | ' |
Percent Of Gas Purchases Being Hedged [Abstract] | ' | ' | ' | ' |
Estimated percentage of natural gas purchases hedged | ' | ' | 20.00% | ' |
Derivative_Financial_Instrumen3
Derivative Financial Instruments (Interest Rate Risk) (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | |||||
Cost Of Capital Strategies [Abstract] | ' | ' | ' | ' | ' | |||||
Hypothetical increase in interest rates associated with variable-rate debt | ' | ' | 0.50% | ' | ' | |||||
Pre-tax net income impact associated with a hypothetical 10% increase in interest rates - exclusive upper bound | ' | ' | $4 | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (current assets) | -2 | ' | -2 | ' | -1 | |||||
Mark-to-market derivative assets (noncurrent assets) | 38 | ' | 38 | ' | 38 | |||||
Total mark-to-market derivative assets | 36 | ' | 36 | ' | 37 | |||||
Mark-to-market derivative liabilities (current liabilities) | -1 | ' | -1 | ' | -1 | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -27 | ' | -27 | ' | -15 | |||||
Total mark-to-market derivative liabilities | -28 | ' | -28 | ' | -16 | |||||
Total mark-to-market derivative net assets (liabilities) | 8 | ' | 8 | ' | 21 | |||||
Derivative, Gain (Loss) on Derivative, Net [Abstract] | ' | ' | ' | ' | ' | |||||
Gain on swaps/borrowings | ' | 3 | ' | 4 | ' | |||||
Loss on swaps/borrowings | -3 | ' | -7 | ' | ' | |||||
Interest Rate Risk - Fair Value Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional amount of interest rate swaps acquired from merger | 150 | ' | 150 | ' | ' | |||||
Fair value of interest rate swaps acquired from merger | 1 | ' | 1 | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative liabilities | 262 | ' | 262 | ' | 300 | |||||
Unrealized Gain (Loss) on Derivatives | ' | ' | -751 | 28 | ' | |||||
Designated as Hedging Instrument [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional Amount of Pre-issuance Interest Rate Cash Flow Hedge Derivatives | 1,111 | ' | 1,111 | ' | ' | |||||
Designated as Hedging Instrument [Member] | Interest Rate Cash Flow Hedge Derivatives | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional Amount of Pre-issuance Interest Rate Cash Flow Hedge Derivatives | 300 | ' | 300 | ' | ' | |||||
Mark-to-market derivative liabilities | 6 | ' | 6 | ' | ' | |||||
Designated as Hedging Instrument [Member] | Interest Rate Swap | Fair Value Hedging [Member] | ' | ' | ' | ' | ' | |||||
Derivative, Gain (Loss) on Derivative, Net [Abstract] | ' | ' | ' | ' | ' | |||||
Gain on swaps/borrowings | 3 | ' | 5 | ' | ' | |||||
Loss on swaps/borrowings | ' | -6 | ' | -12 | ' | |||||
Interest Rate Risk - Fair Value Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments | ' | ' | 33 | ' | 26 | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Derivative, Notional Amount | 1,400 | ' | 1,400 | ' | 1,275 | |||||
Increase In Notional Amount Of Derivative Instruments | ' | ' | 50 | ' | ' | |||||
Increase In Notional Amount Of Derivative Instruments1 | ' | ' | 75 | ' | ' | |||||
Designated as Hedging Instrument [Member] | Interest Rate Swap | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional Amount of Pre-issuance Interest Rate Cash Flow Hedge Derivatives | 400 | ' | 400 | ' | ' | |||||
Derivative [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (noncurrent assets) | 23 | ' | 23 | ' | ' | |||||
Derivative [Member] | Interest Rate Swap | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Derivative, Notional Amount | 1,550 | ' | 1,550 | ' | ' | |||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (current assets) | -2 | ' | -2 | ' | -1 | |||||
Mark-to-market derivative assets (noncurrent assets) | 20 | ' | 20 | ' | 31 | |||||
Total mark-to-market derivative assets | 18 | ' | 18 | ' | 30 | |||||
Mark-to-market derivative liabilities (current liabilities) | -1 | ' | -1 | ' | -1 | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -21 | ' | -21 | ' | -11 | |||||
Total mark-to-market derivative liabilities | -22 | ' | -22 | ' | -12 | |||||
Total mark-to-market derivative net assets (liabilities) | -4 | ' | -4 | ' | 18 | |||||
Derivative, Gain (Loss) on Derivative, Net [Abstract] | ' | ' | ' | ' | ' | |||||
Gain on swaps/borrowings | 2 | 2 | [1] | 1 | [1] | 1 | [1] | ' | ||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Percentage of interest rate swap in relation to DOE guarantee | 75 | ' | 75 | ' | ' | |||||
Notional amount of interest rate swap DOE advance | 350 | ' | 350 | ' | ' | |||||
Percent of DOE loan advance offset | ' | ' | 75.00% | ' | ' | |||||
Notional amount of remaining cash flow hedges | 135 | ' | 135 | ' | ' | |||||
Mark-to-market derivative liabilities | 135 | ' | 135 | ' | 120 | |||||
Unrealized Gain (Loss) on Derivatives | ' | ' | -760 | 21 | ' | |||||
Exelon Generation Co L L C [Member] | Antelope Valle [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
DOE interest rate swap | ' | ' | 485 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Other Solar Projects [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional amounts on forward starting interest rate swaps | 27 | ' | 27 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (noncurrent assets) | 16 | ' | 16 | ' | 26 | |||||
Total mark-to-market derivative assets | 16 | ' | 16 | ' | 26 | |||||
Mark-to-market derivative liabilities (current liabilities) | -1 | ' | -1 | ' | -1 | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -19 | ' | -19 | ' | -10 | |||||
Total mark-to-market derivative liabilities | -20 | ' | -20 | ' | -11 | |||||
Total mark-to-market derivative net assets (liabilities) | -4 | ' | -4 | ' | 15 | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional Amount of Pre-issuance Interest Rate Cash Flow Hedge Derivatives | 411 | ' | 411 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Interest Rate Cash Flow Hedge Derivatives | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative liabilities | 2 | ' | 2 | ' | ' | |||||
Increase In Notional Amount Of Derivative Instruments | ' | ' | 223 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Foreign Currency Fair Value Hedge Derivatives | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Derivative, Notional Amount | 121 | ' | 121 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Derivative, Notional Amount | 257 | ' | 257 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap | Fair Value Hedging [Member] | ' | ' | ' | ' | ' | |||||
Derivative, Gain (Loss) on Derivative, Net [Abstract] | ' | ' | ' | ' | ' | |||||
Loss on swaps/borrowings | -3 | [1] | -5 | [1] | -8 | [1] | -9 | [1] | ' | |
Interest Rate Risk - Fair Value Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments | ' | ' | 16 | ' | 23 | |||||
Interest rate swaps previously held by acquiree | 550 | ' | 550 | ' | 550 | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Other Solar Projects [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Notional amounts on forward starting interest rate swaps | 26 | ' | 26 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Other Solar Projects [Member] | Interest Rate Cash Flow Hedge Derivatives | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (noncurrent assets) | 1 | ' | 1 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | Interest Expense [Member] | Interest Rate Swap | Fair Value Hedging [Member] | ' | ' | ' | ' | ' | |||||
Derivative Instruments Gain Loss Recognized In Income Net Footnotes [Abstract] | ' | ' | ' | ' | ' | |||||
GainLossOnFairValueHedgesRecognizedInEarnings | -4 | -4 | -8 | -8 | ' | |||||
Exelon Generation Co L L C [Member] | Derivative [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (current assets) | 2 | ' | 2 | ' | 3 | |||||
Mark-to-market derivative assets (noncurrent assets) | 2 | ' | 2 | ' | 3 | |||||
Total mark-to-market derivative assets | 4 | ' | 4 | ' | 6 | |||||
Mark-to-market derivative liabilities (current liabilities) | -4 | ' | -4 | ' | -1 | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -2 | ' | -2 | ' | -1 | |||||
Total mark-to-market derivative liabilities | -6 | ' | -6 | ' | -2 | |||||
Total mark-to-market derivative net assets (liabilities) | -2 | ' | -2 | ' | 4 | |||||
Exelon Generation Co L L C [Member] | Derivative [Member] | Interest Rate Swap | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Derivative, Notional Amount | 700 | ' | 700 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Derivative [Member] | Other Solar Projects [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative liabilities | 2 | ' | 2 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Derivative [Member] | Interest Expense [Member] | Antelope Valle [Member] | ' | ' | ' | ' | ' | |||||
Interest Rate Risk - Cash Flow Hedges [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative liabilities | 15 | ' | 15 | ' | ' | |||||
Exelon Generation Co L L C [Member] | Proprietary Trading [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (current assets) | 14 | [2] | ' | 14 | [2] | ' | 15 | [2] | ||
Mark-to-market derivative assets (noncurrent assets) | 12 | [2] | ' | 12 | [2] | ' | 15 | [2] | ||
Total mark-to-market derivative assets | 26 | [2] | ' | 26 | [2] | ' | 30 | [2] | ||
Mark-to-market derivative liabilities (current liabilities) | -15 | [2] | ' | -15 | [2] | ' | -18 | [2] | ||
Mark-to-market derivative liabilities (noncurrent liabilities) | -11 | [2] | ' | -11 | [2] | ' | -13 | [2] | ||
Total mark-to-market derivative liabilities | -26 | [2] | ' | -26 | [2] | ' | -31 | [2] | ||
Total mark-to-market derivative net assets (liabilities) | 0 | [2] | ' | 0 | [2] | ' | -1 | [2] | ||
Exelon Generation Co L L C [Member] | Collateral And Netting [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (current assets) | -18 | [3] | ' | -18 | [3] | ' | -19 | |||
Mark-to-market derivative assets (noncurrent assets) | -10 | [3] | ' | -10 | [3] | ' | -13 | |||
Total mark-to-market derivative assets | -28 | [3] | ' | -28 | [3] | ' | 32 | |||
Mark-to-market derivative liabilities (current liabilities) | 19 | [3] | ' | 19 | [3] | ' | -19 | |||
Mark-to-market derivative liabilities (noncurrent liabilities) | 11 | [3] | ' | 11 | [3] | ' | -13 | |||
Total mark-to-market derivative liabilities | 30 | [3] | ' | 30 | [3] | ' | -32 | |||
Total mark-to-market derivative net assets (liabilities) | 2 | [3] | ' | 2 | [3] | ' | 0 | |||
Other Segments [Member] | Designated as Hedging Instrument [Member] | ' | ' | ' | ' | ' | |||||
Derivative Interest Rate Risk [Abstract] | ' | ' | ' | ' | ' | |||||
Mark-to-market derivative assets (noncurrent assets) | 18 | ' | 18 | ' | 7 | |||||
Total mark-to-market derivative assets | 18 | ' | 18 | ' | 7 | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -6 | ' | -6 | ' | -4 | |||||
Total mark-to-market derivative liabilities | -6 | ' | -6 | ' | -4 | |||||
Total mark-to-market derivative net assets (liabilities) | $12 | ' | $12 | ' | $3 | |||||
[1] | For the three and six months ended June 30, 2014, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. For the three and six months ended June 30, 2013, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. | |||||||||
[2] | B B B B B B B B B B B B B B B B Generation enters into interest rate derivative contracts to economically hedge risk associated with theB interest rate component of commodity positions.B The characterization of the interest rate derivative contracts between the proprietary trading activity in the above table is driven by the corresponding characterization of the underlying commodity position that gives rise to the interest rate exposure.B Generation does not utilize proprietary trading interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates. | |||||||||
[3] | Represents the netting of fair value balances with the same counterparty and any associated cash collateral. |
Derivative_Financial_Instrumen4
Derivative Financial Instruments (Fair Value Measurments) (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Ineffective portion recognized in income | ' | ' | ' | ' | $8 | ' | ' | ' | ||||||||
Footnotes To Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net gain (loss) of reclassifications from accumulated OCI to net income related to settlements of block contracts | ' | ' | ' | ' | ' | 0 | ' | ' | ||||||||
Net gains (losses) related to interest rate swaps and treasury rate locks | ' | ' | ' | ' | ' | -22 | ' | ' | ||||||||
Cash Flow Hedge Activity Impact [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash flow hedge activity impact on pre-tax net income based on reclassification adjustment from accumulated other comprehensive income | ' | ' | ' | ' | ' | 240 | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | 629 | ' | ' | ' | 629 | ' | 727 | ' | ||||||||
Mark-to-market derivative assets (noncurrent assets) | 482 | ' | ' | ' | 482 | ' | 607 | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -228 | ' | ' | ' | -228 | ' | -159 | ' | ||||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -262 | ' | ' | ' | -262 | ' | -300 | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -15 | ' | 416 | ' | -745 | 29 | ' | ' | ||||||||
CorporateNonSegmentMember | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | 0 | ' | ' | ' | ' | ' | ' | ' | ||||||||
Operating Revenue [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Proprietary Trading Activities [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -6 | ' | 3 | ' | -7 | 5 | ' | ' | ||||||||
Operating Revenue [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | ' | ' | -10 | ' | ' | 7 | ' | ' | ||||||||
Interest Expense [Member] | CorporateNonSegmentMember | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | ' | ' | 0 | ' | ' | ' | ' | ' | ||||||||
Derivative [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | 631 | ' | ' | ' | 631 | ' | 728 | ' | ||||||||
Mark-to-market derivative assets (noncurrent assets) | 444 | ' | ' | ' | 444 | ' | 569 | ' | ||||||||
Total mark-to-market derivative assets | 1,075 | ' | ' | ' | 1,075 | ' | 1,297 | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -227 | ' | ' | ' | -227 | ' | -158 | ' | ||||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -235 | ' | ' | ' | -235 | ' | -285 | ' | ||||||||
Total mark-to-market derivative liabilities | -462 | ' | ' | ' | -462 | ' | -443 | ' | ||||||||
Total mark-to-market derivative net assets (liabilities) | 613 | ' | ' | ' | 613 | ' | 854 | ' | ||||||||
CommodityOptionMember | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -13 | ' | 370 | ' | -693 | 37 | ' | ' | ||||||||
Reclassification to realized at settlement | 3 | ' | 48 | ' | -46 | -5 | ' | ' | ||||||||
Net mark-to-market gains (losses) | -10 | ' | 418 | ' | -739 | 32 | ' | ' | ||||||||
CommodityOptionMember | Operating Revenue [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Proprietary Trading Activities [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | 1 | ' | 5 | ' | 0 | 1 | ' | ' | ||||||||
Reclassification to realized at settlement | -8 | ' | -1 | ' | -7 | 5 | ' | ' | ||||||||
Net mark-to-market gains (losses) | -7 | ' | 4 | ' | -7 | 6 | ' | ' | ||||||||
CommodityOptionMember | Operating Revenue [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | ' | ' | -13 | ' | ' | -6 | ' | ' | ||||||||
Reclassification to realized at settlement | ' | ' | 3 | ' | ' | 13 | ' | ' | ||||||||
Net mark-to-market gains (losses) | ' | ' | -10 | ' | ' | 7 | ' | ' | ||||||||
Interest Rate Swap [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -4 | ' | -2 | ' | -5 | -3 | ' | ' | ||||||||
Reclassification to realized at settlement | -1 | ' | ' | ' | -1 | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -5 | ' | -2 | ' | -6 | -3 | ' | ' | ||||||||
Interest Rate Swap [Member] | CorporateNonSegmentMember | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | ' | ' | 0 | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | 0 | ' | ' | ' | ' | ' | ' | ' | ||||||||
Interest Rate Swap [Member] | Operating Revenue [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Proprietary Trading Activities [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | ' | ' | ' | ' | -1 | ' | ' | ' | ||||||||
Reclassification to realized at settlement | 1 | ' | -1 | ' | 1 | -1 | ' | ' | ||||||||
Net mark-to-market gains (losses) | 1 | ' | -1 | ' | ' | -1 | ' | ' | ||||||||
Interest Rate Swap [Member] | Interest Expense [Member] | CorporateNonSegmentMember | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | 0 | ' | ' | ' | 0 | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | ' | ' | 0 | ' | 0 | ' | ' | ' | ||||||||
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedge reclassified from AOCI to net income | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Activity Impact [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash flow hedge activity impact on pre-tax net income based on reclassification adjustment from accumulated other comprehensive income | 63 | ' | 141 | ' | 102 | ' | ' | ' | ||||||||
Total Cash Flow Hedges [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Accumulated OCI derivative gain - Beginning Balance | 95 | 120 | 310 | 368 | 120 | 368 | 368 | ' | ||||||||
Effective portion of changes in fair value | -10 | ' | 21 | [1] | ' | -11 | 21 | [2] | ' | ' | ||||||
Accumulated OCI derivative gain - Ending Balance | 47 | ' | 245 | ' | 47 | 245 | ' | ' | ||||||||
Footnotes To Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net gains (losses) related to interest rate swaps and treasury rate locks | ' | ' | ' | ' | ' | -11 | ' | ' | ||||||||
Net gain (loss) related to effective portion of changes in fair value of treasury rate locks | ' | ' | -18 | ' | -25 | ' | ' | ' | ||||||||
Total Cash Flow Hedges [Member] | Operating Revenue One [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Ineffective portion recognized in income | ' | ' | ' | ' | ' | 0 | ' | ' | ||||||||
Total Cash Flow Hedges [Member] | Operating Revenue One [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedge reclassified from AOCI to net income | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Reclassifications from accumulated OCI to net income | ' | ' | -86 | ' | ' | -144 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Reclassifications from accumulated OCI to net income | 3,588 | ' | 3,718 | ' | 7,644 | 6,859 | ' | ' | ||||||||
Cash Flow Hedge Activity Impact [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net unrealized pre-tax gain (loss) on effective cash flow hedges | ' | ' | ' | ' | 1,928 | ' | ' | ' | ||||||||
Net unrealized pre-tax gain (loss) on effective cash flow hedges related to swap contract | ' | ' | ' | ' | 693 | ' | ' | ' | ||||||||
Expected reclassification from accumulated other comprehensive income to results of operations | ' | ' | ' | ' | 94 | ' | ' | ' | ||||||||
Expected reclassification from accumulated other comprehensive income to results of operations related to fair value of swap contracts | ' | ' | ' | ' | 0 | ' | ' | ' | ||||||||
Cash flow hedge activity impact on pre-tax net income based on reclassification adjustment from accumulated other comprehensive income | 63 | ' | 236 | ' | 102 | 459 | ' | ' | ||||||||
Change in cash flow hedge ineffectiveness | ' | ' | ' | ' | 0 | 5 | ' | ' | ||||||||
Cash flow hedge ineffectiveness adjustment to accumulated other comprehensive income | ' | ' | 5 | ' | ' | 5 | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | 629 | ' | ' | ' | 629 | ' | 727 | ' | ||||||||
Mark-to-market derivative assets with affiliate (current assets) | 0 | ' | ' | ' | 0 | ' | 0 | ' | ||||||||
Mark-to-market derivative assets (noncurrent assets) | 464 | ' | ' | ' | 464 | ' | 600 | ' | ||||||||
Mark-to-market derivative assets with affiliate (noncurrent assets) | 0 | ' | ' | ' | 0 | ' | 0 | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -215 | ' | ' | ' | -215 | ' | -142 | ' | ||||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -135 | ' | ' | ' | -135 | ' | -120 | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -15 | ' | 426 | ' | -745 | 22 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Operating Revenue [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -83 | ' | 504 | ' | -843 | -82 | ' | ' | ||||||||
Proprietary Trading Activities [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -6 | ' | 3 | ' | -7 | 5 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Purchased Power And Fuel [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | 69 | ' | -76 | ' | 99 | 107 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Interest Expense [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -1 | ' | -2 | ' | -1 | -3 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Derivative [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | 631 | [3] | ' | ' | ' | 631 | [3] | ' | 728 | [4] | ' | |||||
Mark-to-market derivative assets (noncurrent assets) | 444 | [3] | ' | ' | ' | 444 | [3] | ' | 569 | [4] | ' | |||||
Total mark-to-market derivative assets | 1,075 | [3] | ' | ' | ' | 1,075 | [3] | ' | 1,297 | [4] | ' | |||||
Mark-to-market derivative liabilities (current liabilities) | -214 | [3] | ' | ' | ' | -214 | [3] | ' | -141 | [4] | ' | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -114 | [3] | ' | ' | ' | -114 | [3] | ' | -109 | [4] | ' | |||||
Total mark-to-market derivative liabilities | -328 | [3] | ' | ' | ' | -328 | [3] | ' | -250 | [4] | ' | |||||
Total mark-to-market derivative net assets (liabilities) | 747 | [3] | ' | ' | ' | 747 | [3] | ' | 1,047 | [4] | ' | |||||
Exelon Generation Co L L C [Member] | Designated as Hedging Instrument [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | 3,422 | ' | ' | ' | 3,422 | ' | 2,616 | ' | ||||||||
Mark-to-market derivative assets (noncurrent assets) | 1,394 | ' | ' | ' | 1,394 | ' | 1,344 | ' | ||||||||
Total mark-to-market derivative assets | 4,816 | ' | ' | ' | 4,816 | ' | 3,960 | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -3,354 | ' | ' | ' | -3,354 | ' | -2,023 | ' | ||||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -1,214 | ' | ' | ' | -1,214 | ' | -804 | ' | ||||||||
Total mark-to-market derivative liabilities | -4,568 | ' | ' | ' | -4,568 | ' | -2,827 | ' | ||||||||
Total mark-to-market derivative net assets (liabilities) | 248 | ' | ' | ' | 248 | ' | 1,133 | ' | ||||||||
Footnotes To Derivative Instruments In Statement Of Financial Position Fair Value [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Current assets collateral offset | -126 | ' | ' | ' | -126 | ' | 84 | ' | ||||||||
Noncurrent assets collateral offset | -56 | ' | ' | ' | -56 | ' | 72 | ' | ||||||||
Current liabilities collateral offset | -198 | ' | ' | ' | -198 | ' | -12 | ' | ||||||||
Noncurrent liabilities collateral offset | -110 | ' | ' | ' | -110 | ' | 0 | ' | ||||||||
Total cash collateral received net of cash collateral posted | 490 | ' | ' | ' | 490 | ' | 144 | ' | ||||||||
Exelon Generation Co L L C [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Footnotes To Derivative Instruments In Statement Of Financial Position Fair Value [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Fair value swap contract current asset | 0 | ' | ' | ' | 0 | ' | 0 | ' | ||||||||
Fair value swap contract noncurrent asset | ' | ' | ' | ' | ' | ' | 0 | ' | ||||||||
Noncurrent liability DOE interest rate swap | ' | ' | ' | ' | 23 | ' | 0 | ' | ||||||||
Exelon Generation Co L L C [Member] | Proprietary Trading [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | 925 | ' | ' | ' | 925 | ' | 1,476 | ' | ||||||||
Mark-to-market derivative assets (noncurrent assets) | 149 | ' | ' | ' | 149 | ' | 285 | ' | ||||||||
Total mark-to-market derivative assets | 1,074 | ' | ' | ' | 1,074 | ' | 1,761 | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -900 | ' | ' | ' | -900 | ' | -1,410 | ' | ||||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -165 | ' | ' | ' | -165 | ' | -293 | ' | ||||||||
Total mark-to-market derivative liabilities | -1,065 | ' | ' | ' | -1,065 | ' | -1,703 | ' | ||||||||
Total mark-to-market derivative net assets (liabilities) | 9 | ' | ' | ' | 9 | ' | 58 | ' | ||||||||
Exelon Generation Co L L C [Member] | Collateral And Netting [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | -3,716 | [5] | ' | ' | ' | -3,716 | [5] | ' | -3,364 | [5] | ' | |||||
Mark-to-market derivative assets (noncurrent assets) | -1,099 | [5] | ' | ' | ' | -1,099 | [5] | ' | -1,060 | [5] | ' | |||||
Total mark-to-market derivative assets | -4,815 | [5] | ' | ' | ' | -4,815 | [5] | ' | -4,424 | [5] | ' | |||||
Mark-to-market derivative liabilities (current liabilities) | 4,040 | [5] | ' | ' | ' | 4,040 | [5] | ' | 3,292 | [5] | ' | |||||
Mark-to-market derivative liabilities (noncurrent liabilities) | 1,265 | [5] | ' | ' | ' | 1,265 | [5] | ' | 988 | [5] | ' | |||||
Total mark-to-market derivative liabilities | 5,305 | [5] | ' | ' | ' | 5,305 | [5] | ' | 4,280 | [5] | ' | |||||
Total mark-to-market derivative net assets (liabilities) | 490 | [5] | ' | ' | ' | 490 | [5] | ' | -144 | [5] | ' | |||||
Exelon Generation Co L L C [Member] | CommodityOptionMember | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -13 | ' | 383 | ' | -693 | 43 | ' | ' | ||||||||
Reclassification to realized at settlement | 3 | ' | 45 | ' | -46 | -18 | ' | ' | ||||||||
Net mark-to-market gains (losses) | -10 | ' | 428 | ' | -739 | 25 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | CommodityOptionMember | Operating Revenue [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -124 | ' | 460 | ' | -975 | -26 | ' | ' | ||||||||
Reclassification to realized at settlement | 45 | ' | 44 | ' | 137 | -56 | ' | ' | ||||||||
Net mark-to-market gains (losses) | -79 | ' | 504 | ' | -838 | -82 | ' | ' | ||||||||
Proprietary Trading Activities [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | 1 | ' | 5 | ' | 0 | 1 | ' | ' | ||||||||
Reclassification to realized at settlement | -8 | ' | -1 | ' | -7 | 5 | ' | ' | ||||||||
Net mark-to-market gains (losses) | -7 | ' | 4 | ' | -7 | 6 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | CommodityOptionMember | Purchased Power And Fuel [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | 111 | ' | -77 | ' | 282 | 69 | ' | ' | ||||||||
Reclassification to realized at settlement | -42 | ' | 1 | ' | -183 | 38 | ' | ' | ||||||||
Net mark-to-market gains (losses) | 69 | ' | -76 | ' | 99 | 107 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Interest Rate Swap [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -4 | ' | -2 | ' | -5 | -3 | ' | ' | ||||||||
Reclassification to realized at settlement | -1 | ' | ' | ' | -1 | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -5 | ' | -2 | ' | -6 | -3 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Interest Rate Swap [Member] | Operating Revenue [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -3 | ' | ' | ' | -4 | 0 | ' | ' | ||||||||
Reclassification to realized at settlement | -1 | ' | ' | ' | -1 | ' | ' | ' | ||||||||
Net mark-to-market gains (losses) | -4 | ' | 0 | ' | -5 | 0 | ' | ' | ||||||||
Proprietary Trading Activities [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | ' | ' | ' | ' | -1 | ' | ' | ' | ||||||||
Reclassification to realized at settlement | 1 | ' | -1 | ' | 1 | -1 | ' | ' | ||||||||
Net mark-to-market gains (losses) | 1 | ' | -1 | ' | ' | -1 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Interest Rate Swap [Member] | Purchased Power And Fuel [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | ' | ' | ' | ' | ' | 0 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Interest Rate Swap [Member] | Interest Expense [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Other Derivatives Not Designated As Hedging Instruments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Change in fair value | -1 | ' | -2 | ' | -1 | -3 | ' | ' | ||||||||
Net mark-to-market gains (losses) | -1 | ' | -2 | ' | -1 | -3 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Energy Related Hedges [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Accumulated OCI derivative gain - Beginning Balance | 95 | 119 | [6] | 397 | [7],[8] | 532 | [10],[9] | 119 | [6] | 532 | [10],[9] | 532 | [10],[9] | ' | ||
Effective portion of changes in fair value | ' | ' | 0 | ' | ' | 0 | ' | ' | ||||||||
Accumulated OCI derivative gain - Ending Balance | 57 | [6] | 95 | 255 | [10],[7],[8],[9] | 397 | [7],[8] | 57 | [6] | 255 | [10],[7],[8],[9] | 119 | [6] | 532 | [10],[9] | |
Footnotes To Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Unrealized gain (loss) related to fair value of swap contract | ' | ' | 58 | 133 | ' | 58 | ' | 420 | ||||||||
Unrealized gain (loss) related to fair value of block contract | ' | ' | 0 | ' | ' | 0 | ' | 0 | ||||||||
Net gain (loss) related to effective portion of changes in fair value of swap contract | ' | ' | ' | ' | ' | ' | 133 | ' | ||||||||
Net gain (loss) of reclassifications from accumulated OCI to net income related to the settlements of swap contract | ' | ' | -58 | ' | ' | ' | ' | ' | ||||||||
Net gains (losses) related to interest rate swaps and treasury rate locks | 6 | 3 | -11 | 16 | 9 | ' | ' | -20 | ||||||||
Net gain (loss) related to effective portion of changes in fair value of treasury rate locks | ' | ' | ' | ' | ' | 88 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Energy Related Hedges [Member] | Operating Revenue One [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Ineffective portion recognized in income | ' | ' | ' | ' | ' | 0 | ' | ' | ||||||||
Accumulated OCI derivative gain - Ending Balance | ' | ' | -133 | ' | ' | -133 | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Energy Related Hedges [Member] | Operating Revenue One [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Reclassifications from accumulated OCI to net income | -38 | ' | ' | ' | -62 | ' | ' | ' | ||||||||
Exelon Generation Co L L C [Member] | Energy Related Hedges [Member] | Operating Revenue One [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedge reclassified from AOCI to net income | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Reclassifications from accumulated OCI to net income | ' | ' | -142 | [11] | ' | ' | -277 | ' | ' | |||||||
Exelon Generation Co L L C [Member] | Total Cash Flow Hedges [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Footnotes To Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Net gain (loss) related to effective portion of changes in fair value of swap contract | ' | ' | ' | ' | 9 | ' | ' | ' | ||||||||
Net gains (losses) related to interest rate swaps and treasury rate locks | ' | ' | ' | ' | ' | ' | -15 | ' | ||||||||
Exelon Generation Co L L C [Member] | Total Cash Flow Hedges [Member] | Operating Revenue One [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Reclassifications from accumulated OCI to net income | -38 | ' | ' | ' | -62 | ' | ' | ' | ||||||||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -13 | ' | ' | ' | -13 | ' | -17 | ' | ||||||||
Mark-to-market derivative liability with affiliate (current liability) | 0 | ' | ' | ' | 0 | ' | 0 | ' | ||||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -121 | ' | ' | ' | -121 | ' | -176 | ' | ||||||||
Commonwealth Edison Co [Member] | Designated as Hedging Instrument [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative liabilities (current liabilities) | -13 | [12] | ' | ' | ' | -13 | [12] | ' | -17 | ' | ||||||
Mark-to-market derivative liabilities (noncurrent liabilities) | -121 | [12] | ' | ' | ' | -121 | [12] | ' | -176 | ' | ||||||
Total mark-to-market derivative liabilities | -134 | [12] | ' | ' | ' | -134 | [12] | ' | -193 | ' | ||||||
Total mark-to-market derivative net assets (liabilities) | -134 | [12] | ' | ' | ' | -134 | [12] | ' | -193 | ' | ||||||
Commonwealth Edison Co [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Footnotes To Derivative Instruments In Statement Of Financial Position Fair Value [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Fair value swap contract current liability | 0 | ' | ' | ' | 0 | ' | 0 | ' | ||||||||
Fair value swap contract noncurrent liability | ' | ' | ' | ' | ' | ' | 0 | ' | ||||||||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Cash Flow Hedge Accumulated Other Comprehensive Income [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Reclassifications from accumulated OCI to net income | 651 | ' | 649 | ' | 1,689 | 1,525 | ' | ' | ||||||||
Derivatives Fair Value [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Mark-to-market derivative assets | $0 | ' | ' | ' | $0 | ' | $0 | ' | ||||||||
[1] | Includes $18 million of losses, net of taxes, related to the effective portion of changes in fair value of interest rate swaps and treasury rate locks at Generation for the three months ended June 30, 2013. | |||||||||||||||
[2] | Includes $22 million of losses, net of taxes, related to the effective portion of changes in fair value of interest rate swaps and treasury rate locks. | |||||||||||||||
[3] | Current and noncurrent assets are shown net of collateral of $(126) million and $(56) million, respectively, and current and noncurrent liabilities are shown net of collateral of $(198) million and $(110) million, respectively. The total cash collateral posted, net of cash collateral received and offset against mark-to-market assets and liabilities was $490 million at June 30, 2014. | |||||||||||||||
[4] | (b)B B B B B B B B Current and noncurrent assets are shown net of collateral of $84 million and $72 million, respectively, and current and noncurrent liabilities are shown net of collateral of $(12) million and $0 million, respectively. The total cash collateral received, net of cash collateral posted and offset against mark-to-market assets and liabilities was $144 million at December 31, 2013. | |||||||||||||||
[5] | Exelon and Generation net all available amounts allowed under the derivative accounting guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral.B In some cases Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, letters of credit and other forms of non-cash collateral. These are not reflected in the table above. | |||||||||||||||
[6] | Excludes $9 million of gains and $15 million of losses, net of taxes, related to interest rate swaps and treasury locks as of June 30, 2014 and December 31, 2013, respectively. | |||||||||||||||
[7] | Includes $58 million of gains, net of taxes, related to the fair value of the five-year financial swap contract with ComEd, as of March 31, 2013. | |||||||||||||||
[8] | Excludes $11 million and $16 million of losses, net of taxes, related to interest rate swaps and treasury rate locks as of June 30, 2013 and March 31, 2013, respectively. | |||||||||||||||
[9] | Includes $133 million of gains, net of taxes, related to the fair value of the five-year financial swap contract with ComEd, as of December 31, 2012. | |||||||||||||||
[10] | Excludes $11 million of losses and $20 million of losses, net of taxes, related to interest rate swaps and treasury rate locks as of June 30, 2013 and December 31, 2012, respectively. | |||||||||||||||
[11] | Includes $58 million of losses, net of taxes, reclassified from accumulated OCI to recognize gains in net income related to the settlements of the five-year financial swap contract with ComEd | |||||||||||||||
[12] | Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers. |
Derivative_Financial_Instrumen5
Derivative Financial Instruments (Credit Risk) (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Millions, unless otherwise specified | ||
Exelon Generation Co L L C [Member] | ' | ' |
Counter Party With Exposure [Abstract] | ' | ' |
Cash Collateral Held | ' | $206 |
Letters Of Credit Held | ' | 34 |
Credit Risk [Abstract] | ' | ' |
Financial institutions | 185 | ' |
Investor-owned utilities, marketers and power producers | 360 | ' |
Energy cooperative and municipalities | 729 | ' |
Other | 22 | ' |
Exelon Generation Co L L C [Member] | Commonwealth Edison Co Affiliate [Member] | ' | ' |
Due From Related Parties [Abstract] | ' | ' |
Net receivable from electric utility | 6 | ' |
Exelon Generation Co L L C [Member] | Total Exposure Before Credit Collateral [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Investment grade | 1,095 | ' |
Non-investment grade | 12 | ' |
No external ratings - internally rated - investment grade | 286 | ' |
No external ratings - internally rated - non-investment grade | 21 | ' |
Total | 1,414 | ' |
Exelon Generation Co L L C [Member] | Credit Collateral [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Investment grade | 103 | ' |
Non-investment grade | 9 | ' |
No external ratings - internally rated - investment grade | 2 | ' |
No external ratings - internally rated - non-investment grade | 4 | ' |
Total | 118 | ' |
Exelon Generation Co L L C [Member] | Net Exposure [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Investment grade | 992 | ' |
Non-investment grade | 3 | ' |
No external ratings - internally rated - investment grade | 284 | ' |
No external ratings - internally rated - non-investment grade | 17 | ' |
Total | 1,296 | ' |
Exelon Generation Co L L C [Member] | Number Of Counterparties Greater Than Ten Percent Of Net Exposure [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Investment grade | 1 | ' |
Non-investment grade | 0 | ' |
No external ratings - internally rated - investment grade | 1 | ' |
No external ratings - internally rated - non-investment grade | 0 | ' |
Total | 2 | ' |
Exelon Generation Co L L C [Member] | Net Exposure Of Counterparties Greater Than Ten Percent Of Net Exposure [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Investment grade | 417 | ' |
Non-investment grade | 0 | ' |
No external ratings - internally rated - investment grade | 189 | ' |
No external ratings - internally rated - non-investment grade | 0 | ' |
Total | 606 | ' |
Commonwealth Edison Co [Member] | ' | ' |
Counter Party With Exposure [Abstract] | ' | ' |
Cash Collateral Held | 19 | ' |
Commonwealth Edison Co [Member] | Net Exposure [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Total | 2 | ' |
PECO Energy Co [Member] | ' | ' |
Natural Gas Supply And Management Agreement Credit Exposure [Abstract] | ' | ' |
Credit exposure under natural gas supply and management agreements | 6 | ' |
PECO Energy Co [Member] | PECO Energy Co Affiliate [Member] | ' | ' |
Due From Related Parties [Abstract] | ' | ' |
Net receivable from affiliated electric and gas utility | 23 | ' |
Baltimore Gas and Electric Company [Member] | ' | ' |
Natural Gas Supply And Management Agreement Credit Exposure [Abstract] | ' | ' |
Credit exposure under off system sales | 1 | ' |
Baltimore Gas and Electric Company [Member] | Baltimore Gas And Electric Company Affiliate [Member] | ' | ' |
Due From Related Parties [Abstract] | ' | ' |
Net receivable from affiliated electric and gas utility | 36 | ' |
Baltimore Gas and Electric Company [Member] | Net Exposure [Member] | ' | ' |
Credit Risk [Abstract] | ' | ' |
Total | $38 | ' |
Derivative_Financial_Instrumen6
Derivative Financial Instruments (Collateral and Contingent-Related Features) (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 | ||
In Millions, unless otherwise specified | ||||
Exelon Generation Co L L C [Member] | ' | ' | ||
Collateral And Contingent Related Features [Abstract] | ' | ' | ||
Aggregate fair value of derivatives with credit-risk-related contingent features | ($1,102) | [1] | ($1,056) | [1] |
Contractual right of offset related to derivative assets | 825 | [2] | 846 | [2] |
Net liability position after contractual right of offset | -277 | [3] | -210 | [3] |
Incremental collateral for loss of investment grade credit rating | 2,000 | 2,000 | ||
Cash collateral held | ' | 206 | ||
Cash collateral posted | 623 | 72 | ||
Letters of credit held | ' | 34 | ||
Letters of credit posted | 466 | 364 | ||
Master Netting Arrangements [Abstract] | ' | ' | ||
Cash collateral received not offset against net derivative positions | 7 | 10 | ||
Commonwealth Edison Co [Member] | ' | ' | ||
Collateral And Contingent Related Features [Abstract] | ' | ' | ||
Cash collateral held | 19 | ' | ||
Swap Contract Collateral Posting Limit [Abstract] | ' | ' | ||
Credit Derivative, Collateral Held Directly or by Third Parties Monetary Amount | 2 | ' | ||
PECO Energy Co [Member] | ' | ' | ||
Collateral And Contingent Related Features [Abstract] | ' | ' | ||
Incremental collateral for loss of investment grade credit rating | 26 | ' | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ||
Collateral And Contingent Related Features [Abstract] | ' | ' | ||
Incremental collateral for loss of investment grade credit rating | $73 | ' | ||
[1] | Amount represents the gross fair value of out-of-the-money derivative contracts containing credit-risk related contingent features ignoring the effects of master netting agreements. | |||
[2] | Amount represents the offsetting fair value of in-the-money derivative contracts under legally enforceable master netting agreements with the same counterparty, which reduces the amount of any liability for which a Registrant could potentially be required to post collateral. | |||
[3] | Amount represents the net fair value of out-of-the-money derivative contracts containing credit-risk related contingent features after considering the mitigating effects of offsetting positions under master netting arrangements and reflects the actual net liability upon which any potential contingent collateral obligations would be based. |
Debt_and_Credit_Agreements_Det
Debt and Credit Agreements (Details) (USD $) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Apr. 02, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Mar. 14, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | ||||
Maximum [Member] | Minimum [Member] | BridgeLoanMember | Designated as Hedging Instrument [Member] | Designated as Hedging Instrument [Member] | Designated as Hedging Instrument [Member] | convertible debt member | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Exelon Corporate [Member] | Exelon Corporate [Member] | Exelon Corporate [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | |||||||||||
Interest Rate Swap [Member] | Interest Rate Swap [Member] | Interest Rate Swap [Member] | Suboridanted Debentures [Member] | Syndicated Revolver [Member] | Letter of Credit [Member] | Commercial Paper [Member] | Letter of Credit [Member] | Letter of Credit [Member] | Letter of Credit [Member] | Designated as Hedging Instrument [Member] | Designated as Hedging Instrument [Member] | ExgenRenewablesI425June62021[Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Commercial Paper [Member] | Syndicated Revolver [Member] | Long Term Debt Issuances [Member] | Long Term Debt Issuances [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Syndicated Revolver [Member] | Commercial Paper [Member] | Syndicated Revolver [Member] | Long Term Debt Issuances [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | Long Term Debt Retirements [Member] | ||||||||||||||||||||||||||||||||||||||
Fair Value Hedging [Member] | Fair Value Hedging [Member] | Fair Value Hedging [Member] | DebtInstrumentRedemptionPeriodThreeMember | DebtInstrumentRedemptionPeriodOneMember | DebtInstrumentRedemptionPeriodTwoMember | Foreign Exchange Contract [Member] | Interest Rate Swap [Member] | Interest Rate Swap [Member] | CEU Credit Agreement [Member] | UpstreamGasLending221July222016[Member] | NuclearFuelPurchaseContract3.350%June302018 [Member] | DOE Financing Project [Member] | DOE Financing Project [Member] | DOE Financing Project [Member] | Non Recourse Debt [Member] | Armstrong Co Tax Exempt, 5% December 1,2042 [Member] | Sacramento PV Energy [Member] | Clean Horizons [Member] | MEDCO Tax-Exempt Bonds [Member] | Continental Wind 6000 February 28, 2033 [Member] | Capital Lease Obligations [Member] | Capital Lease Obligations [Member] | Senior Notes [Member] | Pollution Control Notes [Member] | First Mortgage Bonds [Member] | First Mortgage Bonds [Member] | First Mortgage Bonds [Member] | Pollution Control Notes [Member] | Senior Notes [Member] | Rate Stabilization Bonds, April 1, 2017 [Member] | Rate Stabilization Bonds, April 1, 2017 [Member] | Medium Term, Notes 6.73% 6.75% June 15, 2012 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||
DOE Project Financing, 3.092% January 2, 2037 [Member] | Floating Rate Debt [Member] | ExgenRenewablesI425June62021[Member] | Continetal Wind [Member] | Kennett Square Capital Lease, 7.83%, September 20, 2020 [Member] | Kennett Square Capital Lease, 7.83%, September 20, 2020 [Member] | SeniorSecuredNotes525January152014Member [Member] | Fixed Rate Debt [Member] | FirstMortgageBondSeries215January152019 [Member] | FirstMortgageBondSeries47January152044Member [Member] | FirstMortgageBond163January12014 [Member] | Fixed Rate Debt [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
DOE Project Financing, 3.092% January 2, 2037 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Long-Term Debt [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Long-term debt to affiliate | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $948,000,000 | ' | $948,000,000 | ' | $1,523,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Non-Recourse Debt - Interest Rate Swap | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 240,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Long-term debt to PECO Energy Transition Trust due within one year | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 563,000,000 | ' | 563,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Long-term debt to financing trusts | 648,000,000 | 648,000,000 | ' | 648,000,000 | ' | ' | 648,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 206,000,000 | ' | 206,000,000 | ' | 206,000,000 | ' | ' | ' | ' | ' | ' | ' | 184,000,000 | ' | 184,000,000 | ' | 184,000,000 | ' | 258,000,000 | ' | 258,000,000 | ' | 258,000,000 | ' | ' | ' | ' | ' | ' | |||
Interest rate on long-term debt | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4.40% | 2.21% | 3.35% | ' | ' | ' | 4.25% | ' | ' | ' | 2.56% | 2.56% | ' | 6.00% | 7.83% | ' | 5.35% | 4.10% | ' | ' | ' | ' | ' | ' | ' | ' | 2.15% | 4.70% | 1.63% | 5.85% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3.35% | 5.72% | ' | ' | |||
Minimum interest rate on long-term debt | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2.33% | 0.03% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Maximum interest rate on long-term debt | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3.09% | 0.03% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Long Term Debt | 131,000,000 | 131,000,000 | ' | 131,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000 | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,000,000 | 38,000,000 | ' | ' | ' | 300,000,000 | 3,000,000 | ' | ' | 1,000,000 | 1,000,000 | ' | 11,000,000 | 2,000,000 | ' | 500,000,000 | 20,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | 300,000,000 | 350,000,000 | 600,000,000 | 17,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 35,000,000 | ' | ' | |||
Derivative, Gain on Derivative | ' | ' | 3,000,000 | ' | 4,000,000 | ' | ' | ' | ' | ' | 3,000,000 | 5,000,000 | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | 2,000,000 | [1] | 1,000,000 | [1] | 1,000,000 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
DebtInstrumentCollateralAmount | 1,900,000,000 | 1,900,000,000 | ' | 1,900,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Long-term Debt, Excluding Current Maturities | 18,133,000,000 | 18,133,000,000 | ' | 18,133,000,000 | ' | ' | 17,623,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 5,944,000,000 | ' | 5,944,000,000 | ' | 5,645,000,000 | ' | ' | ' | ' | ' | ' | ' | 9,000,000 | ' | ' | 300,000,000 | ' | 197,000,000 | ' | ' | 450,000,000 | 125,000,000 | ' | ' | 33,000,000 | ' | ' | 1,000,000 | ' | ' | 5,448,000,000 | ' | 5,448,000,000 | ' | 5,058,000,000 | ' | ' | ' | ' | ' | ' | ' | 1,947,000,000 | ' | 1,947,000,000 | ' | 1,947,000,000 | ' | 1,904,000,000 | ' | 1,904,000,000 | ' | 1,941,000,000 | ' | ' | ' | ' | 6,000,000 | 1,000,000 | |||
Footnotes To Long-Term Debt [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Notional amount of interest rate cash flow hedge derivatives | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,400,000,000 | 1,400,000,000 | 1,275,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 121,000,000 | 257,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Line Of Credit Facility [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
LineOfCreditFacilityMaximumBorrowingCapacity | 8,500,000,000 | 8,500,000,000 | ' | 8,500,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 500,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 600,000,000 | ' | ' | ' | ' | ' | ' | 600,000,000 | ' | ' | ' | ' | |||
Outstanding letters of credit | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 100,000,000 | ' | ' | ' | ' | ' | ' | 100,000,000 | 300,000,000 | 100,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Footnotes To Line Of Credit Facility [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Credit facility agreements with minority and community banks | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 50,000,000 | ' | 50,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 34,000,000 | ' | 34,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 34,000,000 | ' | 34,000,000 | ' | ' | ' | 5,000,000 | ' | 5,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | |||
Letters of credit | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 20,000,000 | ' | 20,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 17,000,000 | ' | 17,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 21,000,000 | ' | 21,000,000 | ' | ' | ' | 1,000,000 | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | |||
ShortTermBorrowingsAbstract | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Commercial paper borrowings | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 498,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 70,000,000 | ' | ' | ' | ' | ' | |||
Short-term debt outstanding amount | 621,000,000 | 621,000,000 | ' | 621,000,000 | ' | ' | 341,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 53,000,000 | ' | 53,000,000 | ' | 22,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 498,000,000 | ' | 498,000,000 | ' | 184,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 70,000,000 | ' | 70,000,000 | ' | 135,000,000 | ' | ' | ' | ' | ' | ' | |||
BridgeLoan | 4,200,000,000 | 4,200,000,000 | ' | 4,200,000,000 | ' | 7,200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Interest Expense | ' | 228,000,000 | 246,000,000 | 445,000,000 | 863,000,000 | ' | ' | ' | ' | 9,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 74,000,000 | 77,000,000 | 147,000,000 | 142,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 76,000,000 | 72,000,000 | 153,000,000 | 422,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | 25,000,000 | 25,000,000 | 50,000,000 | 51,000,000 | ' | ' | 23,000,000 | 28,000,000 | 47,000,000 | 58,000,000 | ' | ' | ' | ' | ' | ' | ' | |||
Credit Agreements [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Additional amounts available upon request under current credit facilities | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 500,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Basis points adders for prime-based borrowings | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.275 | ' | ' | 0.275 | ' | 0.275 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.075 | ' | 0.075 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | 0 | ' | ' | ' | 0 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | |||
Basis points adders for LIBOR-based borrowings | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.275 | ' | ' | 1.275 | ' | 1.275 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.075 | ' | 1.075 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.9 | ' | 0.9 | ' | ' | ' | 1 | ' | 1 | ' | ' | ' | ' | ' | ' | ' | ' | |||
Amount Of Aggregate Letters of Credit Available | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 500,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Revolver Under Amendment | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Equity Securities Offering [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
EquitySecuritiesOfferingTotalNumber | 57,500,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Share Price | $35 | $35 | ' | $35 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
UnderwritingDiscount | 60,000,000 | 60,000,000 | ' | 60,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
underwriting fees | 35,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Proceeds from the issuance of subordinate debt | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,100,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
SubordinatedLongTermDebt | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,200,000,000 | ' | 1,150,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Coupon rate of interest on Equity Unites | 2.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
ForwardContractPaymentRate | 4.40% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Per unit conversion rate for Equity Security units | $33.96 | $33.96 | ' | $33.96 | ' | ' | ' | ' | ' | ' | ' | ' | ' | $50 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Shares issueable at June 30, 2014 ifsettlement occurred | 4,000,000 | 4,000,000 | ' | 4,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
CommonSharesIssueableAt Maturity | ' | ' | ' | ' | ' | ' | ' | 1.4286 | 1.1429 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Shares to be used in Physical settlement | 57,700,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Proceeds at forward price | ' | ' | ' | ' | ' | ' | ' | $1,950,000,000 | $1,850,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Daily accretion rate less spread | 0.75% | 0.75% | ' | 0.75% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Exelon's Stock Price At Maturity | ' | ' | ' | ' | ' | ' | ' | $43.75 | $35 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
[1] | For the three and six months ended June 30, 2014, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. For the three and six months ended June 30, 2013, the loss on Generation swaps included $4 million and $8 million realized in earnings, respectively, with an immaterial amount excluded from hedge effectiveness testing. |
Debt_and_Credit_Agreements_Mat
Debt and Credit Agreements (Maturitites of Long-term Debt) (Details) (USD $) | Jun. 30, 2014 |
In Millions, unless otherwise specified | |
Long Term Debt By Maturity [Abstract] | ' |
Long Term Debt | $131 |
Exelon Generation Co L L C [Member] | ' |
Long Term Debt By Maturity [Abstract] | ' |
Long Term Debt | $1 |
Income_Taxes_Details
Income Taxes (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | ||||||||||||||||||||||||
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2011 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2010 | Dec. 31, 2013 | Dec. 31, 1999 | Jun. 30, 2011 | Dec. 31, 2011 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2011 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2013 | Jun. 30, 2011 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2011 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2011 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | |||
Deferred Tax Impact [Member] | Deferred Tax Impact [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | |||||||||||||
Deferred Tax Impact [Member] | |||||||||||||||||||||||||||||||||||||||
Effective Income Tax Rate Reconciliation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
U.S. Federal statutory rate | 35.00% | 35.00% | ' | 35.00% | 35.00% | ' | ' | ' | ' | ' | ' | ' | 35.00% | 35.00% | ' | 35.00% | 35.00% | ' | ' | ' | ' | 35.00% | 35.00% | ' | 35.00% | 35.00% | ' | 35.00% | 35.00% | ' | 35.00% | 35.00% | ' | 35.00% | 35.00% | 35.00% | 35.00% | ||
Increase (decrease) due to: | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
State income taxes, net of Federal income tax benefit | 2.10% | 4.10% | ' | -0.60% | 8.60% | ' | ' | ' | ' | ' | ' | ' | 1.70% | 3.50% | ' | -14.70% | 0.40% | ' | ' | ' | ' | 4.60% | 5.60% | ' | 5.00% | 4.10% | ' | -0.50% | 2.90% | ' | 0.40% | 2.90% | ' | 4.10% | 5.60% | 5.00% | 5.70% | ||
Qualified nuclear decommissioning trust fund income (losses) | 4.10% | -1.80% | ' | 5.90% | 2.80% | ' | ' | ' | ' | ' | ' | ' | 6.00% | -2.70% | ' | 27.70% | 4.80% | ' | ' | ' | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | 0.00% | 0.00% | ||
Domestic production activities deduction | -2.00% | 0.10% | ' | -3.20% | ' | ' | ' | ' | ' | ' | ' | ' | -2.90% | 0.20% | ' | -14.80% | ' | ' | ' | ' | ' | 0.00% | 0.00% | ' | 0.00% | ' | ' | 0.00% | 0.00% | ' | 0.00% | ' | ' | 0.00% | 0.00% | 0.00% | ' | ||
Tax exempt income | 0.00% | -0.10% | ' | 0.00% | 0.00% | ' | ' | ' | ' | ' | ' | ' | 0.00% | -0.20% | ' | 0.00% | -0.10% | ' | ' | ' | ' | 0.00% | ' | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | ' | 0.00% | 0.00% | 0.00% | 0.00% | ||
Nontaxable postretirement benefits | ' | 0.10% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.00% | ' | ' | ' | ' | ' | ' | ' | ' | 0.40% | ' | ' | ' | ' | ' | 0.00% | ' | ' | ' | ' | ' | ' | ' | ' | ||
Health Care Reform Legislation | 0.00% | ' | ' | 0.10% | -0.20% | ' | ' | ' | ' | ' | ' | ' | 0.00% | ' | ' | 0.00% | -0.40% | ' | ' | ' | ' | 0.20% | ' | ' | 0.20% | 0.00% | ' | 0.00% | ' | ' | 0.00% | 0.00% | ' | 0.20% | -0.30% | 0.20% | 0.00% | ||
Amortization of investment tax credit | -0.40% | -1.80% | ' | -1.20% | 0.20% | ' | ' | ' | ' | ' | ' | ' | -0.50% | -2.50% | ' | -4.90% | 0.00% | ' | ' | ' | ' | -0.30% | -0.30% | ' | -0.30% | 5.70% | ' | -0.10% | -0.10% | ' | -0.10% | 0.00% | ' | -0.70% | -0.60% | -0.30% | 0.20% | ||
Plant basis differences | -1.60% | -1.40% | ' | -3.00% | -3.50% | ' | ' | ' | ' | ' | ' | ' | 0.00% | 0.00% | ' | 0.00% | -5.60% | ' | ' | ' | ' | -0.40% | -0.40% | ' | -0.50% | -4.90% | ' | -13.20% | -8.60% | ' | -10.80% | -0.10% | ' | 5.10% | -0.70% | 0.40% | -0.30% | ||
Production Tax Credits | -0.80% | -1.40% | ' | -2.40% | -3.10% | ' | ' | ' | ' | ' | ' | ' | -1.10% | -2.20% | ' | -11.10% | 0.00% | ' | ' | ' | ' | 0.00% | 0.00% | ' | 0.00% | -8.70% | ' | 0.00% | 0.00% | ' | 0.00% | -7.50% | ' | 0.00% | 0.00% | 0.00% | -0.60% | ||
Fines and Penalties | ' | ' | ' | ' | -2.80% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -4.90% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Other | -1.20% | -0.30% | ' | -3.10% | 0.10% | ' | ' | ' | ' | ' | ' | ' | -0.40% | 0.10% | [1] | ' | -8.90% | 3.10% | ' | ' | ' | ' | 0.20% | 0.40% | [1] | ' | 0.20% | 5.50% | ' | 0.30% | -0.10% | ' | 0.30% | 0.00% | ' | -1.30% | ' | 0.10% | -0.20% |
Non-controlling minority interest | -2.00% | ' | ' | -1.90% | ' | ' | ' | ' | ' | ' | ' | ' | -2.90% | ' | ' | -8.80% | ' | ' | ' | ' | ' | 0.00% | ' | ' | 0.00% | -0.30% | ' | 0.00% | ' | ' | 0.00% | ' | ' | 0.00% | ' | 0.00% | ' | ||
Effective income tax rate | 33.20% | 32.50% | ' | 25.60% | 37.10% | ' | ' | ' | ' | ' | ' | ' | 34.90% | 31.20% | [1] | ' | -0.50% | 32.30% | ' | ' | ' | ' | 39.30% | 40.70% | ' | 39.60% | 36.40% | ' | 21.50% | 29.10% | ' | 24.80% | 30.30% | ' | 42.40% | 39.00% | 40.40% | 39.80% | |
Accounting for Uncertainty in Income Taxes [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Unrecognized tax benefits that if recognized would affect the effective tax rate | $1,858,000,000 | ' | ' | $1,858,000,000 | ' | ' | ' | ' | $2,175,000,000 | ' | ' | ' | $1,403,000,000 | ' | ' | $1,403,000,000 | ' | ' | ' | $1,415,000,000 | ' | $170,000,000 | ' | ' | $170,000,000 | ' | $324,000,000 | $44,000,000 | ' | ' | $44,000,000 | ' | $44,000,000 | ' | ' | ' | ' | ||
Information by nature of uncertainty related to unrecognized tax benefits | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 225,000,000 | ' | ' | 225,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
1999 Sale of Fossil Generating Assets [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Deferred tax gain on sale of fossil generating assets | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,800,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Deferred tax gain under involuntary conversion provisions of the IRC | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,600,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Deferred tax gain under like-kind exchange provisions of the IRC | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 155,000,000 | ' | ' | 155,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
IRS asserted penalties for understatement of tax | ' | ' | ' | 265,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 170,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Potential tax and interest from a successful IRS challenge of the like-kind exchange transaction position | 830,000,000 | ' | ' | 830,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 310,000,000 | ' | ' | 310,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
IRS asserted penalties for understatement of tax related to like-kind exchange | ' | ' | ' | 87,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Status Of Like Kind Exchange Position [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Receivable from Exelon intercompany money pool | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | ' | 0 | ' | ' | ' | 44,000,000 | ' | 172,000,000 | ' | ' | 172,000,000 | ' | ' | 0 | ' | ' | 0 | ' | 0 | ' | ' | ' | ' | ||
FIN 48 Tax Remeasurement [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
FIN 48 Tax Remeasurement Interest Expense | ' | ' | 65,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 36,000,000 | ' | ' | ' | ' | ' | 22,000,000 | ' | ' | ' | ' | ' | ' | ' | ||
FIN 48 Tax Remeasurement Current Tax Expense (Benefit) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 70,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | 70,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Tax Settlement [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Payment to IRS for open tax positions | ' | ' | ' | ' | ' | ' | ' | 302,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Income tax benefit recorded as a result of re-apportionment of state income taxes [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Gross Deferred Income tax benefit recorded as a result of re-apportionment of state income taxes | ' | ' | ' | ' | ' | 116,000,000 | 3,000,000 | ' | ' | ' | ' | 8,000,000 | ' | ' | ' | ' | ' | 14,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Gross Deferred Income tax expense recorded as a result of re-apportionment of state income taxes | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 22,000,000 | 1,000,000 | ' | ' | ' | ' | ' | ' | 7,000,000 | ' | 11,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Deferred state tax liability resulting from purchase accounting | ' | ' | ' | ' | ' | 44,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 14,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
DeferredStateTaxAssetFromStateTaxApportionment | ' | ' | ' | ' | ' | 72,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
TaxesPayableCurrent | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Taxes Payable Current | 285,000,000 | ' | ' | 285,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Income Tax Expense Benefit Continuing Operations [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||
Income Tax Expense (Benefit) | $277,000,000 | $239,000,000 | ' | $224,000,000 | $294,000,000 | ' | ' | ' | ' | ' | ' | ' | $199,000,000 | $149,000,000 | ' | ($1,000,000) | $148,000,000 | ' | ' | ' | ' | $72,000,000 | $66,000,000 | ' | $137,000,000 | $8,000,000 | ' | $23,000,000 | $32,000,000 | ' | $57,000,000 | $87,000,000 | ' | $14,000,000 | $16,000,000 | $72,000,000 | $70,000,000 | ||
[1] | B |
Asset_Retirement_Obligation_De
Asset Retirement Obligation (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | |||||
Nuclear Decommissioning Trust Fund Investments [Abstract] | ' | ' | ' | ' | ' | |||||
Shortfall of decommissioning funds with recourse | $50 | ' | $50 | ' | ' | |||||
Percent of additional decommissioning shortfall with recourse | 5.00% | ' | 5.00% | ' | ' | |||||
NDT fund investments | 10,437 | ' | 10,437 | ' | 8,071 | |||||
NRC Minimum Funding Requirements [Abstract] | ' | ' | ' | ' | ' | |||||
Additional NRC funding assurance parent guarantees | ' | ' | ' | ' | 115 | |||||
Nuclear Decommissioning Obligation [Line Items] | ' | ' | ' | ' | ' | |||||
Pledged assets for Zion Station decommissioning | 402 | 458 | 402 | 458 | 458 | |||||
Total payable to ZionSolutions | 357 | [1] | ' | 357 | [1] | ' | 414 | [1] | ||
Current payable to ZionSolutions | 93 | [2] | ' | 93 | [2] | ' | 109 | [2] | ||
Zion Station decommissioning costs withdrawn | ' | ' | 575 | [3] | ' | 498 | [3] | |||
Unrealized Losses On Nuclear Decommissioning Trust Fund Investment [Line Items] | ' | ' | ' | ' | ' | |||||
Net unrealized gains (losses) on decommissioning trust funds - Regulatory Agreement Units | 172 | [4] | -102 | [4] | 234 | [4] | 92 | [4] | ' | |
Net unrealized gains (losses) on decommissioning trust funds - Non-Regulatory Agreement Units | 128 | [5],[6] | -40 | [5],[6] | 141 | [5],[6] | 24 | [5],[6] | ' | |
Footnotes To Unrealized Gains Losses On NDT Funds [Abstract] | ' | ' | ' | ' | ' | |||||
Gains on Zion Station Pledged Assets | ' | ' | 10 | 2 | ' | |||||
Nuclear Decommissioning Asset Retirement Obligation [Member] | ' | ' | ' | ' | ' | |||||
Asset Retirement Obligation Roll Forward Analysis [Roll Forward] | ' | ' | ' | ' | ' | |||||
ARO beginning balance | ' | ' | 4,855 | [7] | ' | ' | ||||
Accretion expense | ' | ' | 154 | ' | ' | |||||
Costs incurred to decommission retired plants | ' | ' | -3 | ' | ' | |||||
ARO ending balance | 6,707 | [7] | ' | 6,707 | [7] | ' | ' | |||
Footnotes To Asset Retirement Obligation [Abstract] | ' | ' | ' | ' | ' | |||||
Current Portion of ARO | 9 | ' | 9 | ' | 9 | |||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | |||||
Nuclear Decommissioning Trust Fund Investments [Abstract] | ' | ' | ' | ' | ' | |||||
Shortfall of decommissioning funds with recourse | 50 | ' | 50 | ' | ' | |||||
Percent of additional decommissioning shortfall with recourse | 5.00% | ' | 5.00% | ' | ' | |||||
NDT fund investments | 10,437 | ' | 10,437 | ' | 8,071 | |||||
NRC Minimum Funding Requirements [Abstract] | ' | ' | ' | ' | ' | |||||
Additional NRC funding assurance parent guarantees | ' | ' | ' | ' | 115 | |||||
Nuclear Decommissioning Obligation [Line Items] | ' | ' | ' | ' | ' | |||||
Pledged assets for Zion Station decommissioning | 402 | 458 | 402 | 458 | 458 | |||||
Total payable to ZionSolutions | 357 | [1] | ' | 357 | [1] | ' | 414 | [1] | ||
Current payable to ZionSolutions | 93 | [2] | ' | 93 | [2] | ' | 109 | [2] | ||
Zion Station decommissioning costs withdrawn | ' | ' | 575 | [3] | ' | 498 | [3] | |||
Unrealized Losses On Nuclear Decommissioning Trust Fund Investment [Line Items] | ' | ' | ' | ' | ' | |||||
Net unrealized gains (losses) on decommissioning trust funds - Regulatory Agreement Units | 172 | [4] | -102 | [4] | 234 | [4] | 92 | [4] | ' | |
Net unrealized gains (losses) on decommissioning trust funds - Non-Regulatory Agreement Units | 128 | [5],[6] | -40 | [5],[6] | 141 | [5],[6] | 24 | [5],[6] | ' | |
Footnotes To Unrealized Gains Losses On NDT Funds [Abstract] | ' | ' | ' | ' | ' | |||||
Gains on Zion Station Pledged Assets | ' | ' | 10 | 2 | ' | |||||
Exelon Generation Co L L C [Member] | Nuclear Decommissioning Asset Retirement Obligation [Member] | ' | ' | ' | ' | ' | |||||
Asset Retirement Obligation Roll Forward Analysis [Roll Forward] | ' | ' | ' | ' | ' | |||||
ARO beginning balance | ' | ' | 4,855 | [7] | ' | ' | ||||
Accretion expense | ' | ' | 154 | ' | ' | |||||
Costs incurred to decommission retired plants | ' | ' | -3 | ' | ' | |||||
ARO ending balance | 6,707 | [7] | ' | 6,707 | [7] | ' | ' | |||
Footnotes To Asset Retirement Obligation [Abstract] | ' | ' | ' | ' | ' | |||||
Current Portion of ARO | $9 | ' | $9 | ' | $9 | |||||
[1] | Excludes a liability recorded within Exelonbs and Generationbs Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||
[2] | Included in Other current liabilities within Exelonbs and Generationbs Consolidated Balance Sheets. | |||||||||
[3] | Cumulative withdrawals since September 1, 2010. | |||||||||
[4] | Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||
[5] | Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||
[6] | Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||
[7] | Includes $9 million as the current portion of the ARO at June 30, 2014 and December 31, 2013 which is included in Other current liabilities on Exelon's and Generation's Consolidated Balance Sheets. |
Nuclear_Decommissioning_Detail
Nuclear Decommissioning (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | |||||
Nuclear Decommissioning Trust Fund Investments [Abstract] | ' | ' | ' | ' | ' | |||||
NDT fund investments | $10,437 | ' | $10,437 | ' | $8,071 | |||||
Current annual recovery of decommissioning costs | ' | ' | 24 | ' | ' | |||||
Shortfall of decommissioning funds with recourse | 50 | ' | 50 | ' | ' | |||||
Decommissioning Shortfall Percentage | 5.00% | ' | 5.00% | ' | ' | |||||
Decommissioning [Abstract] | ' | ' | ' | ' | ' | |||||
Pledged assets for Zion Station decommissioning | 402 | 458 | 402 | 458 | 458 | |||||
Total payable to ZionSolutions | 357 | [1] | ' | 357 | [1] | ' | 414 | [1] | ||
Current payable to ZionSolutions | 93 | [2] | ' | 93 | [2] | ' | 109 | [2] | ||
Zion Station decommissioning costs withdrawn | ' | ' | 575 | [3] | ' | 498 | [3] | |||
NRC Minimum Funding Requirements [Abstract] | ' | ' | ' | ' | ' | |||||
Additional NRC funding assurance parent guarantees | ' | ' | ' | ' | 115 | |||||
Unrealized Losses On Nuclear Decommissioning Trust Fund Investment [Line Items] | ' | ' | ' | ' | ' | |||||
Net unrealized gains (losses) on decommissioning trust funds - Regulatory Agreement Units | 172 | [4] | -102 | [4] | 234 | [4] | 92 | [4] | ' | |
Net unrealized gains (losses) on decommissioning trust funds - Non-Regulatory Agreement Units | 128 | [5],[6] | -40 | [5],[6] | 141 | [5],[6] | 24 | [5],[6] | ' | |
Footnotes To Unrealized Gains Losses On NDT Funds [Abstract] | ' | ' | ' | ' | ' | |||||
Gains on Zion Station Pledged Assets | ' | ' | 10 | 2 | ' | |||||
Nuclear Decommissioning Asset Retirement Obligation [Member] | ' | ' | ' | ' | ' | |||||
Asset Retirement Obligation Roll Forward Analysis [Roll Forward] | ' | ' | ' | ' | ' | |||||
ARO beginning balance | ' | ' | 4,855 | [7] | ' | ' | ||||
Accretion expense | ' | ' | 154 | ' | ' | |||||
Costs incurred to decommission retired plants | ' | ' | -3 | ' | ' | |||||
ARO ending balance | 6,707 | [7] | ' | 6,707 | [7] | ' | ' | |||
Footnotes To Asset Retirement Obligation [Abstract] | ' | ' | ' | ' | ' | |||||
Current Portion of ARO | 9 | ' | 9 | ' | 9 | |||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | |||||
Nuclear Decommissioning Trust Fund Investments [Abstract] | ' | ' | ' | ' | ' | |||||
NDT fund investments | 10,437 | ' | 10,437 | ' | 8,071 | |||||
Shortfall of decommissioning funds with recourse | 50 | ' | 50 | ' | ' | |||||
Decommissioning Shortfall Percentage | 5.00% | ' | 5.00% | ' | ' | |||||
Decommissioning [Abstract] | ' | ' | ' | ' | ' | |||||
Pledged assets for Zion Station decommissioning | 402 | 458 | 402 | 458 | 458 | |||||
Total payable to ZionSolutions | 357 | [1] | ' | 357 | [1] | ' | 414 | [1] | ||
Current payable to ZionSolutions | 93 | [2] | ' | 93 | [2] | ' | 109 | [2] | ||
Zion Station decommissioning costs withdrawn | ' | ' | 575 | [3] | ' | 498 | [3] | |||
NRC Minimum Funding Requirements [Abstract] | ' | ' | ' | ' | ' | |||||
Additional NRC funding assurance parent guarantees | ' | ' | ' | ' | 115 | |||||
Unrealized Losses On Nuclear Decommissioning Trust Fund Investment [Line Items] | ' | ' | ' | ' | ' | |||||
Net unrealized gains (losses) on decommissioning trust funds - Regulatory Agreement Units | 172 | [4] | -102 | [4] | 234 | [4] | 92 | [4] | ' | |
Net unrealized gains (losses) on decommissioning trust funds - Non-Regulatory Agreement Units | 128 | [5],[6] | -40 | [5],[6] | 141 | [5],[6] | 24 | [5],[6] | ' | |
Footnotes To Unrealized Gains Losses On NDT Funds [Abstract] | ' | ' | ' | ' | ' | |||||
Gains on Zion Station Pledged Assets | ' | ' | 10 | 2 | ' | |||||
Exelon Generation Co L L C [Member] | Nuclear Decommissioning Asset Retirement Obligation [Member] | ' | ' | ' | ' | ' | |||||
Asset Retirement Obligation Roll Forward Analysis [Roll Forward] | ' | ' | ' | ' | ' | |||||
ARO beginning balance | ' | ' | 4,855 | [7] | ' | ' | ||||
Accretion expense | ' | ' | 154 | ' | ' | |||||
Costs incurred to decommission retired plants | ' | ' | -3 | ' | ' | |||||
ARO ending balance | 6,707 | [7] | ' | 6,707 | [7] | ' | ' | |||
Footnotes To Asset Retirement Obligation [Abstract] | ' | ' | ' | ' | ' | |||||
Current Portion of ARO | 9 | ' | 9 | ' | 9 | |||||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | |||||
Nuclear Decommissioning Trust Fund Investments [Abstract] | ' | ' | ' | ' | ' | |||||
Current annual recovery of decommissioning costs | ' | ' | $24 | ' | ' | |||||
[1] | Excludes a liability recorded within Exelonbs and Generationbs Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized. | |||||||||
[2] | Included in Other current liabilities within Exelonbs and Generationbs Consolidated Balance Sheets. | |||||||||
[3] | Cumulative withdrawals since September 1, 2010. | |||||||||
[4] | Net unrealized gains (losses) related to Generation's NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon's Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation's Consolidated Balance Sheets. | |||||||||
[5] | Net unrealized gains (losses) related to Generation's NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. | |||||||||
[6] | Excludes $ 10 million and $2 million of net unrealized gains related to the Zion Station pledged assets for the three months ended June 30, 2014 and 2013, respectively, and $20 million and $3 million of net unrealized gains related to the Zion Station pledged assets for the six months ended June 30, 2014 and 2013, respectively. Net unrealized gains (losses) related to Zion Station pledged assets are included in the Payable for Zion Station decommissioning on Exelon's and Generation's Consolidated Balance Sheets. | |||||||||
[7] | Includes $9 million as the current portion of the ARO at June 30, 2014 and December 31, 2013 which is included in Other current liabilities on Exelon's and Generation's Consolidated Balance Sheets. |
Retirement_Benefits_Details
Retirement Benefits (Details) (USD $) | 3 Months Ended | 6 Months Ended | |||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | ||||
Changes in plan assets and benefit obligations recognized in OCI and regulatory assets: | ' | ' | ' | ' | ' | ||||
Changes in plan assets and benefit obligations recognized in OCI | $1 | ($12) | ' | ' | ' | ||||
Increase in regulatory assets due valuation received by Exelon for its legacy pension and other postretirement benefit obligations. | 15 | 34 | ' | ' | ' | ||||
Increase in regulatory liabilities due to updated valuation of Exelon's legacy pension and postretirement benefit obligations | ' | 5 | ' | ' | ' | ||||
Pension And Other Postretirement Benefit Contributions [Abstract] | ' | ' | ' | ' | ' | ||||
Pension and non-pension postretirement benefit contributions | ' | ' | ' | 499 | 284 | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | 19 | ' | 21 | 48 | 43 | ||||
CENGMember [Member] | ' | ' | ' | ' | ' | ||||
Defined Benefit Plan Expense Included In Capital And Operational And Maintenance Expense [Abstract] | ' | ' | ' | ' | ' | ||||
Amount included in capital and operating & maintenance expense | ' | ' | ' | 5 | ' | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | ' | ' | ' | 1 | ' | ||||
Business Services Company [Member] | ' | ' | ' | ' | ' | ||||
Defined Benefit Plan Expense Included In Capital And Operational And Maintenance Expense [Abstract] | ' | ' | ' | ' | ' | ||||
Amount included in capital and operating & maintenance expense | 13 | [1] | ' | 16 | [1] | 26 | [1] | 34 | [1] |
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | 1 | ' | 2 | 4 | 4 | ||||
Business Services Company [Member] | Remeasurement [Member] | ' | ' | ' | ' | ' | ||||
Design Changes Impact [Abstract] | ' | ' | ' | ' | ' | ||||
Other comprehensive income (loss) due to design changes | -259 | ' | ' | ' | ' | ||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ||||
Pension And Other Postretirement Benefit Contributions [Abstract] | ' | ' | ' | ' | ' | ||||
Pension and non-pension postretirement benefit contributions | ' | ' | ' | 210 | 120 | ||||
Defined Benefit Plan Expense Included In Capital And Operational And Maintenance Expense [Abstract] | ' | ' | ' | ' | ' | ||||
Amount included in capital and operating & maintenance expense | 63 | ' | 87 | 139 | 173 | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | 10 | ' | 10 | 24 | 21 | ||||
Exelon Generation Co L L C [Member] | CENGMember [Member] | ' | ' | ' | ' | ' | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | ' | ' | ' | 1 | ' | ||||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ||||
Pension And Other Postretirement Benefit Contributions [Abstract] | ' | ' | ' | ' | ' | ||||
Pension and non-pension postretirement benefit contributions | ' | ' | ' | 236 | 119 | ||||
Defined Benefit Plan Expense Included In Capital And Operational And Maintenance Expense [Abstract] | ' | ' | ' | ' | ' | ||||
Amount included in capital and operating & maintenance expense | 40 | ' | 77 | 96 | 154 | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | 5 | ' | 5 | 12 | 10 | ||||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ||||
Pension And Other Postretirement Benefit Contributions [Abstract] | ' | ' | ' | ' | ' | ||||
Pension and non-pension postretirement benefit contributions | ' | ' | ' | 11 | 10 | ||||
Defined Benefit Plan Expense Included In Capital And Operational And Maintenance Expense [Abstract] | ' | ' | ' | ' | ' | ||||
Amount included in capital and operating & maintenance expense | 9 | ' | 10 | 21 | 21 | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | 2 | ' | 2 | 4 | 4 | ||||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ||||
Pension And Other Postretirement Benefit Contributions [Abstract] | ' | ' | ' | ' | ' | ||||
Pension and non-pension postretirement benefit contributions | ' | ' | ' | 8 | 11 | ||||
Defined Benefit Plan Expense Included In Capital And Operational And Maintenance Expense [Abstract] | ' | ' | ' | ' | ' | ||||
Amount included in capital and operating & maintenance expense | 17 | ' | 14 | 33 | 27 | ||||
Defined Contribution Plan Contributions By Employer [Abstract] | ' | ' | ' | ' | ' | ||||
Savings plan matching contributions | 1 | ' | 2 | 4 | 4 | ||||
Pension Plans Defined Benefit [Member] | ' | ' | ' | ' | ' | ||||
Change in benefit obligation: | ' | ' | ' | ' | ' | ||||
Service cost | 69 | [2] | ' | 79 | 138 | [2] | 159 | ||
Interest cost | 184 | [2] | ' | 163 | 367 | [2] | 326 | ||
Settlements | ' | ' | 0 | ' | 0 | ||||
Change in plan assets: | ' | ' | ' | ' | ' | ||||
Settlements | ' | ' | 0 | ' | 0 | ||||
Components of net periodic benefit cost: | ' | ' | ' | ' | ' | ||||
Service cost | 69 | [2] | ' | 79 | 138 | [2] | 159 | ||
Interest cost | 184 | [2] | ' | 163 | 367 | [2] | 326 | ||
Settlement charges | 0 | [2] | ' | ' | 0 | [2] | ' | ||
Amortization of actuarial gain (loss) | 104 | [2] | ' | 141 | 209 | [2] | 281 | ||
Prior service cost (credit) | 4 | [2] | ' | 4 | 7 | [2] | 7 | ||
Expected return on assets | -242 | [2] | ' | -254 | -483 | [2] | -508 | ||
Contractual termination benefit cost | ' | ' | ' | ' | 0 | ||||
Net periodic benefit cost | 119 | [2] | ' | 133 | 238 | [2] | 265 | ||
Valuation Adjustment Impact [Abstract] | ' | ' | ' | ' | ' | ||||
Benefit obligation increase (decrease) reflecting actual census data | 13 | 35 | ' | ' | ' | ||||
Pension Plans Defined Benefit [Member] | Exelon Generation Co L L C [Member] | CENGMember [Member] | ' | ' | ' | ' | ' | ||||
Change in benefit obligation: | ' | ' | ' | ' | ' | ||||
Service cost | 5 | ' | ' | 5 | ' | ||||
Interest cost | 6 | ' | ' | 6 | ' | ||||
Components of net periodic benefit cost: | ' | ' | ' | ' | ' | ||||
Service cost | 5 | ' | ' | 5 | ' | ||||
Interest cost | 6 | ' | ' | 6 | ' | ||||
Expected return on assets | -9 | ' | ' | 9 | ' | ||||
Net periodic benefit cost | 2 | ' | ' | 2 | ' | ||||
Other Postretirement Benefit Plans Defined Benefit [Member] | ' | ' | ' | ' | ' | ||||
Change in benefit obligation: | ' | ' | ' | ' | ' | ||||
Service cost | 29 | [2] | ' | 40 | 61 | [2] | 81 | ||
Interest cost | 45 | [2] | ' | 49 | 101 | [2] | 97 | ||
Components of net periodic benefit cost: | ' | ' | ' | ' | ' | ||||
Service cost | 29 | [2] | ' | 40 | 61 | [2] | 81 | ||
Interest cost | 45 | [2] | ' | 49 | 101 | [2] | 97 | ||
Amortization of actuarial gain (loss) | 12 | [2] | ' | 21 | 20 | [2] | 42 | ||
Prior service cost (credit) | -30 | [2] | ' | -6 | -34 | [2] | -10 | ||
Expected return on assets | -38 | [2] | ' | -33 | -76 | [2] | -66 | ||
Curtailments charges | ' | ' | 0 | ' | 0 | ||||
Contractual termination benefit cost | ' | ' | ' | ' | 0 | ||||
Net periodic benefit cost | 18 | [2] | ' | 71 | 72 | [2] | 144 | ||
Changes in plan assets and benefit obligations recognized in OCI and regulatory assets: | ' | ' | ' | ' | ' | ||||
Amortization of transition obligation | ' | ' | 0 | ' | 0 | ||||
Valuation Adjustment Impact [Abstract] | ' | ' | ' | ' | ' | ||||
Benefit obligation increase (decrease) reflecting actual census data | 3 | 12 | ' | ' | ' | ||||
Other Postretirement Benefit Plans Defined Benefit [Member] | Subsequent Event [Member] | ' | ' | ' | ' | ' | ||||
Change in benefit obligation: | ' | ' | ' | ' | ' | ||||
DefinedBenefitPlanBenefitObligationPeriodIncreaseDecrease | -790 | ' | ' | ' | ' | ||||
Other Postretirement Benefit Plans Defined Benefit [Member] | NetPeriodicBenefitCostDecrease [Member] | Subsequent Event [Member] | ' | ' | ' | ' | ' | ||||
Change in benefit obligation: | ' | ' | ' | ' | ' | ||||
Plan amendments | -149 | ' | ' | ' | ' | ||||
Other Postretirement Benefit Plans Defined Benefit [Member] | Business Services Company [Member] | Remeasurement [Member] | ' | ' | ' | ' | ' | ||||
Valuation Adjustment Impact [Abstract] | ' | ' | ' | ' | ' | ||||
Regulatory asset increase (decrease) due to updated valuation adjustment | 125 | ' | ' | ' | ' | ||||
Design Changes Impact [Abstract] | ' | ' | ' | ' | ' | ||||
Regulatory Asset increase (decrease) due to design changes | -240 | ' | ' | ' | ' | ||||
Other Postretirement Benefit Plans Defined Benefit [Member] | Exelon Generation Co L L C [Member] | CENGMember [Member] | ' | ' | ' | ' | ' | ||||
Change in benefit obligation: | ' | ' | ' | ' | ' | ||||
Service cost | 1 | ' | ' | 1 | ' | ||||
Interest cost | 2 | ' | ' | 2 | ' | ||||
Components of net periodic benefit cost: | ' | ' | ' | ' | ' | ||||
Service cost | 1 | ' | ' | 1 | ' | ||||
Interest cost | 2 | ' | ' | 2 | ' | ||||
Net periodic benefit cost | $3 | ' | ' | $3 | ' | ||||
[1] | These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO or BGE amounts above. | ||||||||
[2] | Excludes components of CENGbs net periodic benefit costs for the period April 1, 2014 to June 30, 2014 as presented in the below table. |
Retirement_Benefits_Assumption
Retirement Benefits - Assumptions Used In Calculations (Details) | 1 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | |||
Apr. 30, 2014 | Apr. 02, 2014 | Apr. 02, 2014 | Apr. 02, 2014 | Jun. 30, 2014 | Apr. 30, 2014 | Apr. 02, 2014 | |
Pension Plans Defined Benefit [Member] | Pension Plans Defined Benefit [Member] | Pension Plans Defined Benefit [Member] | Pension Plans Defined Benefit [Member] | Other Postretirement Benefit Plans Defined Benefit [Member] | Other Postretirement Benefit Plans Defined Benefit [Member] | Other Postretirement Benefit Plans Defined Benefit [Member] | |
CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | ||||
Maximum [Member] | Minimum [Member] | ||||||
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Abstract] | ' | ' | ' | ' | ' | ' | ' |
Expected return on plan assets | 7.00% | 7.75% | ' | ' | 6.59% | ' | ' |
Discount rate | 4.80% | ' | 4.30% | 3.60% | 4.90% | 4.30% | 4.55% |
Retirement_Benefits_Fair_Value
Retirement Benefits - Fair Value Recurring Basis (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 | ||
In Millions, unless otherwise specified | ||||
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ||
Cash equivalents | $1,034 | [1] | $1,230 | [1] |
[1] | Excludes certain cash equivalents considered to be held-to-maturity and not reported at fair value. |
Retirement_Benefits_Additional
Retirement Benefits - Additional (Details) (USD $) | Jun. 30, 2014 |
In Millions, unless otherwise specified | |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected qualified pension plan contributions | $317 |
Expected non-qualified pension plan contributions | 18 |
Expected other postretirement benefit plan contributions | 290 |
Business Services Company [Member] | CENGMember [Member] | ' |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected qualified pension plan contributions | 51 |
Exelon Generation Co L L C [Member] | ' |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected qualified pension plan contributions | 169 |
Expected non-qualified pension plan contributions | 9 |
Expected other postretirement benefit plan contributions | 128 |
Exelon Generation Co L L C [Member] | CENGMember [Member] | ' |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected qualified pension plan contributions | 53 |
Expected non-qualified pension plan contributions | 3 |
Expected other postretirement benefit plan contributions | 5 |
Commonwealth Edison Co [Member] | ' |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected qualified pension plan contributions | 119 |
Expected non-qualified pension plan contributions | 1 |
Expected other postretirement benefit plan contributions | 121 |
PECO Energy Co [Member] | ' |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected qualified pension plan contributions | 11 |
Expected other postretirement benefit plan contributions | 4 |
Baltimore Gas and Electric Company [Member] | ' |
Defined Benefit Plan Contributions [Abstract] | ' |
Expected non-qualified pension plan contributions | 1 |
Expected other postretirement benefit plan contributions | $18 |
Severance_and_Plant_Retirement
Severance and Plant Retirements (Details) (USD $) | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | ||||||||||||||||||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 |
CENGMember [Member] | Severance [Member] | Severance [Member] | Severance [Member] | Severance [Member] | Other Severance Charges [Member] | Other Severance Charges [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | |||
CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | Severance [Member] | Severance [Member] | Severance [Member] | Severance [Member] | Other Severance Charges [Member] | Other Severance Charges [Member] | CENGMember [Member] | Severance [Member] | Severance [Member] | Other Severance Charges [Member] | CENGMember [Member] | Severance [Member] | Severance [Member] | ||||||||||||||||
CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | CENGMember [Member] | ||||||||||||||||||||||||||
Corporate Restructuring Severance Benefit Obligation [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Severance charges recorded | $4 | $1 | ' | ' | ' | ' | ' | $6 | $2 | $2 | $1 | ' | ' | ' | ' | ' | $4 | $1 | $0 | $0 | ' | ' | ' | $1 | $0 | $0 | $0 | $0 | ' | ' | ' |
Restructuring Reserve [Roll Forward] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Restructuring Reserve, Period Start | ' | ' | ' | 20 | 2 | 33 | 53 | ' | ' | ' | ' | ' | 20 | 2 | 8 | 10 | ' | ' | ' | ' | ' | 0 | 0 | ' | ' | ' | ' | ' | ' | 3 | 6 |
Severance Charges | 2 | ' | 19 | ' | ' | ' | ' | ' | ' | 2 | ' | 19 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Non-Merger Severance Costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 6 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Payments | 3 | ' | 20 | ' | ' | ' | ' | ' | ' | 3 | ' | 2 | ' | ' | ' | ' | ' | ' | ' | ' | 0 | ' | ' | ' | ' | ' | ' | ' | 3 | ' | ' |
Restructuring Reserve, Period End | ' | ' | ' | 20 | 2 | 33 | 53 | ' | ' | ' | ' | ' | 20 | 2 | 8 | 10 | ' | ' | ' | ' | ' | 0 | 0 | ' | ' | ' | ' | ' | ' | 3 | 6 |
Business Acquisition, Costs Recognized Post Merger [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Business Acquisition Charitable Contributions Per Year | 7 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Plant Retirement Cost [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Inventory write down related to plant retirements | $3 | ' | ' | ' | ' | ' | ' | ' | ' | $3 | ' | ' | ' | ' | ' | ' | ' | ' | $1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Preferred_Securities_Details
Preferred Securities (Details) (PECO Energy Co [Member], USD $) | Dec. 31, 2013 |
In Millions, unless otherwise specified | |
PECO Energy Co [Member] | ' |
Temporary Equity [Line Items] | ' |
Dollar amount | $0 |
StockBased_Compensation_Plans_2
Stock-Based Compensation Plans (Details) (USD $) | 3 Months Ended | 6 Months Ended | |||||||
In Millions, except Share data, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | ||||
Common Stock [Abstract] | ' | ' | ' | ' | ' | ||||
Common Stock without par - Authorized | 2,000,000,000 | ' | 2,000,000,000 | ' | 2,000,000,000 | ||||
Common Stock without par - Outstanding | 893,940,600 | ' | 893,940,600 | ' | 857,000,000 | ||||
Share Based Compensation Components [Abstract] | ' | ' | ' | ' | ' | ||||
Stock-based compensation costs | ' | ' | $68 | $70 | ' | ||||
Other stock-based awards | 1 | 1 | 4 | 3 | ' | ||||
Total stock-based compensation included in operating and maintenance expense | 27 | 20 | 97 | 89 | ' | ||||
Income Tax Benefit | -10 | -8 | -37 | -34 | ' | ||||
Total after-tax stock based compensation expense | 17 | 12 | 60 | 55 | ' | ||||
Share Based Compensation Pre Tax Expense [Line Items] | ' | ' | ' | ' | ' | ||||
Pre-tax stock based compensation expense | 27 | 20 | 97 | 89 | ' | ||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ||||
Share Based Compensation Components [Abstract] | ' | ' | ' | ' | ' | ||||
Stock-based compensation costs | ' | ' | 0 | 0 | ' | ||||
Share Based Compensation Pre Tax Expense [Line Items] | ' | ' | ' | ' | ' | ||||
Pre-tax stock based compensation expense | 10 | 9 | 38 | 33 | ' | ||||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ||||
Share Based Compensation Components [Abstract] | ' | ' | ' | ' | ' | ||||
Stock-based compensation costs | ' | ' | 0 | 0 | ' | ||||
Share Based Compensation Pre Tax Expense [Line Items] | ' | ' | ' | ' | ' | ||||
Pre-tax stock based compensation expense | 3 | 2 | 7 | 9 | ' | ||||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ||||
Share Based Compensation Components [Abstract] | ' | ' | ' | ' | ' | ||||
Stock-based compensation costs | ' | ' | 0 | 0 | ' | ||||
Share Based Compensation Pre Tax Expense [Line Items] | ' | ' | ' | ' | ' | ||||
Pre-tax stock based compensation expense | 1 | 1 | 4 | 4 | ' | ||||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ||||
Share Based Compensation Components [Abstract] | ' | ' | ' | ' | ' | ||||
Stock-based compensation costs | ' | ' | 0 | 0 | ' | ||||
Share Based Compensation Pre Tax Expense [Line Items] | ' | ' | ' | ' | ' | ||||
Pre-tax stock based compensation expense | 1 | [1] | 1 | [1] | 5 | [1] | 4 | [1] | ' |
Business Services Company [Member] | ' | ' | ' | ' | ' | ||||
Share Based Compensation Pre Tax Expense [Line Items] | ' | ' | ' | ' | ' | ||||
Pre-tax stock based compensation expense | $12 | [2] | $7 | [2] | $43 | [2] | $39 | [2] | ' |
[1] | BGE's stock-based compensation expense (pre-tax) for the six months ended June 30, 2013 excludes $2 million of cost incurred in 2012 prior to the closing of Exelon's merger with Constellation on March 12, 2012. This amount is not included in Exelon's stock-based compensation expense for the six months ended June 30, 2013 shown in the tables titled Components of Stock-Based Compensation Expense and Subsidiaries above. | ||||||||
[2] | These amounts primarily represent amounts billed to Exelon's subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO and BGE amounts above. |
Earnings_Per_Share_and_Equity_2
Earnings Per Share and Equity (Details) (USD $) | 3 Months Ended | 6 Months Ended | |||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 |
Earnings Per Share And Equity Additional Narrative Information [Abstract] | ' | ' | ' | ' | ' |
Stock options not included in the calculation of diluted common shares outstanding | 16 | 17 | 16 | 18 | ' |
Treasury Stock, Shares held | 35 | ' | 35 | ' | 35 |
Treasury stock, at cost | $2,327 | ' | $2,327 | ' | $2,327 |
Earnings Per Share Diluted | ' | ' | ' | ' | ' |
Net income on common stock | 522 | 490 | 612 | 486 | ' |
Average common shares outstanding - basic | 860 | 856 | 860 | 856 | ' |
Assumed exercise of stock options, performance share awards and restricted stock | 4 | 4 | 3 | 3 | ' |
Average common shares outstanding - diluted | 864 | 860 | 863 | 859 | ' |
Preferred Stock [Member] | Cumulative Preferred Stock [Member] | ' | ' | ' | ' | ' |
Preferred Stock [Line Items] | ' | ' | ' | ' | ' |
PECO Cumulative Preferred Securities Redeemable | ' | ' | ' | ' | ' |
Retained Earnings | Cumulative Preferred Stock [Member] | ' | ' | ' | ' | ' |
Preferred Stock [Line Items] | ' | ' | ' | ' | ' |
Preferred stock redemption premium | ' | ' | ' | ' | ' |
Changes_in_Accumulated_Other_C2
Changes in Accumulated Other Comprehensive Income (Changes in accumulated other comprehensive income by component)(Details) (USD $) | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2013 | Dec. 31, 2012 | |||||||||||||||||||
Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Translation Adjustment [Member] | Accumulated Translation Adjustment [Member] | Accumulated Equity Investment [Member] | Accumulated Equity Investment [Member] | Accumulated Equity Investment [Member] | Accumulated Other Comprehensive (Loss) Income, Net | Accumulated Other Comprehensive (Loss) Income, Net | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | ||||||||||||||||||||||||
Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Translation Adjustment [Member] | Accumulated Translation Adjustment [Member] | Accumulated Equity Investment [Member] | Accumulated Equity Investment [Member] | Accumulated Equity Investment [Member] | Accumulated Other Comprehensive (Loss) Income, Net | Accumulated Other Comprehensive (Loss) Income, Net | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Other Comprehensive (Loss) Income, Net | Accumulated Other Comprehensive (Loss) Income, Net | ||||||||||||||||||||||||||||||||||||||||||||||||
Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance | ' | ' | ($2,040) | [1] | ' | $120 | [1] | $368 | ' | $2 | [1] | ' | ' | ($3,137) | ($2,260) | [1] | ($3,137) | ($10) | [1] | ' | $2 | $108 | [1] | $2 | ' | ($2,767) | ' | ' | $214 | [1] | ' | $114 | [1] | $512 | $2 | [1] | ' | ' | ($10) | [1] | ($6) | $1 | $108 | [1] | $1 | ' | $513 | $0 | $0 | $1 | [1] | $1 | [1] | $1 | [1] | $1 | [1] | $1 | $1 | $1 | $1 | ||||
OCI before reclassifications | ' | ' | 246 | [1] | ' | -11 | [1] | 24 | ' | 1 | [1] | -1 | ' | ' | 246 | [1] | 87 | -1 | [1] | -6 | ' | 11 | [1] | 31 | ' | 135 | ' | ' | 1 | [1] | ' | -8 | [1] | 12 | -1 | [1] | -1 | -6 | -1 | [1] | ' | ' | 11 | [1] | 31 | ' | 36 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||
Amounts reclassified from AOCI | ' | ' | -112 | [1],[2] | ' | -62 | [1],[2] | -147 | ' | ' | ' | ' | ' | 66 | [1],[2] | 101 | ' | ' | ' | -116 | [1],[2] | 5 | ' | -41 | ' | ' | -178 | [1],[2] | ' | -62 | [1],[2] | -279 | ' | ' | ' | ' | ' | ' | -116 | [1],[2] | 5 | ' | -274 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||
Net current-period OCI | 131 | 0 | ' | 94 | -73 | [1] | -123 | ' | 1 | [1] | -1 | ' | ' | 312 | [1] | 188 | -1 | [1] | -6 | ' | -105 | [1] | 36 | 250 | 94 | -155 | -134 | ' | -238 | -70 | [1] | -267 | -1 | [1] | ' | ' | -1 | [1] | ' | ' | -105 | [1] | 36 | -61 | -238 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance | -1,906 | [1] | ' | -1,906 | [1] | ' | 47 | [1] | 245 | ' | 3 | [1] | -1 | -2,949 | ' | -1,948 | [1] | -2,949 | -11 | [1] | -6 | ' | 3 | [1] | 38 | ' | -2,673 | 37 | [1] | ' | 37 | [1] | ' | 44 | [1] | 245 | 1 | [1] | -1 | ' | -11 | [1] | -6 | ' | 3 | [1] | 37 | ' | 275 | 0 | 0 | 1 | [1] | 1 | [1] | 1 | [1] | 1 | [1] | 1 | 1 | 1 | 1 | ||
OtherComprehensiveIncomeLossTaxParentheticalDisclosuresAbstract | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Prior service costs | 5 | 0 | 5 | 1 | ' | ' | -1 | ' | ' | -1 | [2] | 10 | [2] | 12 | [1] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||
Actuarial loss reclassified to periodic cost, taxes | -23 | -32 | -46 | -66 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Transition obligation | ' | -1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Pension and non-pension postretirement benefit plan valuation adjustment, taxes | -166 | ' | -159 | -50 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Change in unrealized gain (loss) on cash flow hedges, taxes | 28 | 45 | 48 | 77 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 25 | 89 | 44 | 175 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Change in unrealized gain (loss) on marketable securities, taxes | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -2 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Change in unrealized gain (loss) on equity investments taxes | 77 | -5 | 70 | -23 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -5 | 193 | ' | ' | ' | 77 | -5 | 70 | -23 | ' | ' | ' | ' | ' | ' | ' | -5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Deferred Compensation Unit Valuation Adjustment tax | ' | -6 | ' | -6 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Other comprehensive income, income taxes | ($79) | $1 | ($82) | ($67) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $159 | ' | $102 | $84 | $112 | $152 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $35 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
[1] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[2] | (b) This accumulated other comprehensive income component is included in the computation of net periodic pension and OPEB cost (see Note 13 for additional details). |
Changes_in_Accumulated_Other_C3
Changes in Accumulated Other Comprehensive Income (Reclassification out of Accumulated Other Comprehensive Income)(Details) (USD $) | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | |||||||||||||||||||||||||||
Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Unrealized Investment Gain Loss [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Equity Method Investments | Equity Method Investments | Equity Method Investments | Equity Method Investments | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | |||||||||||||||||||||||||||||||||
Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Equity Method Investments | Equity Method Investments | Equity Method Investments | Equity Method Investments | Equity Method Investments | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Energy Related Derivative [Member] | Energy Related Derivative [Member] | Energy Related Derivative [Member] | Cash Flow Hedging [Member] | Derivative [Member] | Pension Plans Defined Benefit [Member] | Pension Plans Defined Benefit [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Energy Related Derivative [Member] | Energy Related Derivative [Member] | Energy Related Derivative [Member] | Derivative [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||||||||||
Operating revenues | $6,024 | $6,141 | $6,141 | $13,261 | [1] | $12,223 | [1] | ' | ' | ' | ' | $240 | ' | ' | ' | $141 | $63 | [2] | $102 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $3,789 | $4,070 | $8,179 | $7,603 | ' | ' | ' | ' | $459 | ' | ' | ' | $236 | $63 | [2] | $102 | [2] | ' | ' | ' | ' | ' | ' | ' | $1,128 | $1,080 | $2,262 | $2,239 | $656 | $672 | $1,649 | $1,567 | $653 | $653 | $1,707 | $1,533 | |||||||||||||||||||||
Interest Expense | 228 | ' | 246 | 445 | 863 | ' | ' | ' | ' | -1 | ' | ' | ' | ' | ' | ' | 0 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 74 | 77 | 147 | 142 | ' | ' | ' | ' | 1 | 1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 76 | 72 | 153 | 422 | 25 | 25 | 50 | 51 | 23 | 28 | 47 | 58 | ||||||||||||||||||||||||||
Other income and deductions | 5 | ' | -269 | -117 | -721 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 142 | -126 | 146 | -81 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -75 | -70 | -150 | -418 | -27 | -28 | -53 | -54 | -22 | -28 | -46 | -57 | |||||||||||||||||||||||||||
Income before income taxes | 834 | ' | 736 | 875 | 792 | ' | ' | ' | ' | 239 | 141 | 63 | [2] | 102 | [2] | ' | ' | ' | ' | ' | ' | ' | -83 | ' | -166 | ' | -49 | [2] | -107 | [2] | ' | ' | -8 | ' | 193 | 193 | [2] | 571 | 477 | 187 | 458 | ' | ' | ' | ' | 460 | 237 | 63 | [2] | 102 | [2] | ' | ' | ' | ' | ' | ' | -8 | ' | 193 | 193 | [2] | 183 | 162 | 346 | 22 | 107 | 110 | 230 | 287 | 33 | 41 | 178 | 176 | |||||||||||||||||||
Income taxes | 277 | ' | 239 | 224 | 294 | ' | ' | ' | ' | -92 | -52 | -25 | [2] | -40 | [2] | ' | ' | ' | ' | 62 | [2] | ' | ' | 32 | ' | 65 | ' | 18 | [2] | 41 | [2] | ' | ' | 3 | 2 | -77 | -77 | [2] | 199 | 149 | -1 | 148 | ' | ' | ' | ' | -181 | -93 | -25 | [2] | -40 | [2] | ' | ' | ' | 62 | [2] | 0 | ' | 3 | 2 | -77 | -77 | [2] | 72 | 66 | 137 | 8 | 23 | 32 | 57 | 87 | 14 | 16 | 72 | 70 | |||||||||||||||||
Net income (loss) | 557 | ' | 497 | ' | 498 | 41 | 35 | 123 | [2] | 112 | [2] | 147 | 89 | 38 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | -51 | ' | -101 | ' | -31 | [2] | -66 | [2] | ' | ' | -5 | -3 | 116 | 116 | [2] | 372 | 328 | 188 | 310 | 274 | 141 | 154 | [2] | 178 | [2] | 279 | 144 | 38 | [2] | ' | ' | ' | ' | ' | 0 | ' | -5 | -3 | 116 | 116 | [2] | 111 | 96 | 209 | 14 | 84 | 78 | 173 | 200 | 19 | 25 | 106 | 106 | |||||||||||||||||
Other Comprehensive Income Loss Reclassification Adjustment From AOCI Pension And Other Postretirement Benefit PlansTax [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||||||||||
Prior service costs | 5 | ' | 0 | 5 | 1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -1 | -1 | [3] | 10 | [3] | 12 | [4] | ' | -82 | ' | ' | ' | ' | ' | -5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||
Transition obligation | ' | ' | -1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||||||||||
Actuarial gains/losses | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | -165 | [3] | ' | ' | ' | ' | ' | ' | -61 | [2] | -117 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||
Deferred compensation unit | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||||||||||||||
Loss on equity method investments | $0 | ' | ($21) | ($20) | ($30) | ' | ' | ' | ($8) | [3] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $193 | [2] | ($1) | ($21) | ($20) | ($30) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ($8) | [3] | ' | ' | $193 | $193 | [2] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||||||
[1] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[2] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in net income. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[3] | (b) This accumulated other comprehensive income component is included in the computation of net periodic pension and OPEB cost (see Note 13 for additional details). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[4] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. |
Commitments_and_Contingencies_2
Commitments and Contingencies (Details) (USD $) | 6 Months Ended | 0 Months Ended | 1 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 0 Months Ended | 0 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Jun. 30, 2014 | 15-May-14 | Dec. 31, 2013 | Jun. 30, 2014 | Apr. 12, 2012 | Feb. 28, 2012 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jan. 31, 2013 | Oct. 31, 2007 | Jun. 30, 2014 | Dec. 31, 2013 | Jan. 31, 2005 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jan. 31, 2005 | Jun. 30, 2014 | Jun. 30, 2014 | Jul. 11, 2011 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2012 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | Jun. 30, 2014 | ||||||||||||||||||||
T | Other Purchase Obligations [Member] | Cotter Corporation [Member] | Cotter Corporation [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Accrual For MGP Investigation And Remediation [Member] | Accrual For MGP Investigation And Remediation [Member] | Financial Standby Letter of Credit [Member] | Sithe Guarantee [Member] | Nuclear Insurance Premiums [Member] | Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Exelon Generation Co L L C [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | Commonwealth Edison Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | PECO Energy Co [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Baltimore Gas and Electric Company [Member] | Midwest Generation, LLC [Member] | ||||||||||||||||||||||
Defendants | Defendants | Reactors | Net Capacity Purchases [Member] | Power Purchases [Member] | Transmission Rights Purchases [Member] | Public Utilities, Inventory, Fuel [Member] | Other Purchase Obligations [Member] | Perryman Construction [Member] | Beebe Construction [Member] | FourmileConstructionMember [Member] | Maximum [Member] | Maximum [Member] | Minimum [Member] | Minimum [Member] | Cotter Corporation [Member] | Rossville ash site [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Financial Standby Letter of Credit [Member] | Sithe Guarantee [Member] | Nuclear Insurance Premiums [Member] | Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member] | Customers | Customers | Renewable Energy Including Renewable Energy Credits [Member] | Other Purchase Obligations [Member] | Energy Supply Procurement [Member] | Maximum [Member] | Minimum [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Accrual For MGP Investigation And Remediation [Member] | Accrual For MGP Investigation And Remediation [Member] | Financial Standby Letter of Credit [Member] | Trust Preferred Securities [Member] | Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member] | MGPSites | DSP Program Electric Procurement Contracts [Member] | Alternative Energy Credits [Member] | Public Utilities, Inventory, Fuel [Member] | Other Purchase Obligations [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Accrual For MGP Investigation And Remediation [Member] | Accrual For MGP Investigation And Remediation [Member] | Financial Standby Letter of Credit [Member] | Trust Preferred Securities [Member] | Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member] | MGPSites | Curtailment Services [Member] | Public Utilities, Inventory, Fuel [Member] | Other Purchase Obligations [Member] | Energy Supply Procurement [Member] | Sixty-Eighth Street Dump [Member] | Total Accrual For Environmental Loss Contingencies [Member] | Financial Standby Letter of Credit [Member] | Trust Preferred Securities [Member] | Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member] | ||||||||||||||||||||||||||||||||||||||||
States | MW | MW | Claiments | Claiments | PrincipleResponsibleParties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
OpenClaims | MGPSites | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Commercial Commitments [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Guarantee Obligations Maximum Exposure | $9,839,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | $1,514,000,000 | [1] | $200,000,000 | $3,559,000,000 | [2] | $4,706,000,000 | [3] | ' | ' | $6,375,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $1,470,000,000 | [1] | ' | $3,559,000,000 | [2] | $1,346,000,000 | [4] | ' | $225,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $19,000,000 | [1] | $200,000,000 | $206,000,000 | [5] | $203,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | $22,000,000 | [1] | $178,000,000 | $181,000,000 | [6] | $260,000,000 | ' | ' | ' | ' | ' | ' | ' | $1,000,000 | [1] | $250,000,000 | $259,000,000 | [7] | ' | |||||||
Commercial Commitments Footnote [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Estimated net exposure for commercial transaction obligations | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 600,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 300,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
UnderwritingDiscount | 60,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Nuclear Insurance [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Nuclear insurance liability limit per incident | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 13,600,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Required nuclear liability insurance per site | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 375,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Total of U.S. licensed nuclear reactors | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 104 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Nuclear financial protection pool value | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 13,200,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Maximum assessment mandated by Price-Anderson Act per nuclear reactor for a nuclear incident | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 127,300,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Maximum annual assessment payment mandated by Price-Anderson Act for a nuclear incident | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 19,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Maximum liability per nuclear incident | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,600,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,700,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Spent Nuclear Fuel Obligation [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Cost of spent nuclear fuel disposal per kWh of net nuclear generation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.001 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
NetNuclearFuelDisposalFees | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 49,000,000 | 136,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
LossContingencySettlementAbstract | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Receivable from affiliate | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,606,000,000 | 2,469,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 490,000,000 | 447,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Guarantees Related To Indemnifications [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Acquisition of interest in subsidiary | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 50.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Sale of interest in subsidiary | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 100.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Regulatory Matters [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Direct Investment With State And Local Governments Due To Settlement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Construction Cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 120,000,000 | ' | 95,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Development Of New Generation Cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 650,000,000 | ' | 600,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Expected New Generation Mwh | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 300 | ' | 285 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition Potential Cash Payment | 40,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Accrual For Environmental Loss Contingencies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Accrued environmental liabilities | ' | ' | ' | ' | ' | ' | 323,000,000 | 338,000,000 | 258,000,000 | 273,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 56,000,000 | 56,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 222,000,000 | 234,000,000 | 217,000,000 | 229,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 44,000,000 | 47,000,000 | 41,000,000 | 44,000,000 | ' | ' | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | 1,000,000 | ' | ' | ' | ' | |||||||||||||||||||
Environmental Issues - MGP Site Contingency [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Total number of MGP sites | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 42 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 26 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 13 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Approved clean-up | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 16 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 16 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Sites under study/remediation | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 26 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Environmental Issues - Water [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Low end of range of cooling tower cost | 430,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 430,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Consent decree penalty | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Environmental loss contingencies | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 15,000,000 | 14,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 9,000,000 | |||||||||||||||||||
Environmental Issues - Air [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
States subject to the Cross State Air Pollution Rule | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 28 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Emissions allowance balance | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 64,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Net investment in long-term direct financing leases | 353,000,000 | ' | 698,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Coal Rail Car Lease Proof of Claims | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 21,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Probable contingency (liability) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 21,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Midwest Generation's estimated environmental investigation and remediation costs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 53,000,000 | |||||||||||||||||||
Payments for operating leases | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Environmental Issues - Solid and Hazardous Waste [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
DOJ potential settlement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 90,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Total cost of remediation to be shared by PRPs | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 42,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,700,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Loss Contingency Number Of Defendants | ' | ' | ' | ' | 14 | 15 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Loss Contingency Number Of Parties Jointly And Severally Liable In Environmental Protection Agency Action | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 19 | ' | ' | ' | ' | ' | |||||||||||||||||||
Loss Contingency Esitmate to close site | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 6,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
68th Street and Sauer Dumps [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Number of defendants in addition to BGE and Constellation Energy | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 19 | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum estimated clean-up costs for all potentially responsible parties | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 50,000,000 | ' | ' | ' | ' | ' | |||||||||||||||||||
Maximum estimated clean-up costs for all potentially responsible parties | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,700,000 | ' | ' | ' | ' | ' | 64,000,000 | ' | ' | ' | ' | ' | |||||||||||||||||||
Climate Change Regulation [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum GHG emissions by stationary sources to qualify for regulation | 100,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum additional GHG emissions by stationary sources after a modification | 75,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Effective Number Of Years For Tailoring Rule | '6 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Asbestos Loss Contingency [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Asbestos liability reserve | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 104,000,000 | 90,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Asbestos liability reserve related to open claims | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 21,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Open asbestos liability claims | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 247 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Asbestos liability reserve related to anticipated claims | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 83,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Increase (decrease) in the value of the asbestos liability reserve | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 15,000,000 | 25,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 6,000,000 | |||||||||||||||||||
Number of claimants | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 486 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Continuous Power Interruption [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum number of customers ComEd can be held liable to for power interruption | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 30,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Number of customers affected by a major storm | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 900,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Number of customers proposed by the ICC that ComEd should not be granted a waiver under Continuous Power Interruption | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 34,559 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Telephone Consumer Protection Act Lawsuit [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
PossibleDefendantsNumber | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,200,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
LossContingencyDamagesSought | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,500 | 500 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Regulatory Matters [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Direct Investment With State And Local Governments Due To Settlement | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,000,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Construction Cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 120,000,000 | ' | 95,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Development Of New Generation Cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 650,000,000 | ' | 600,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition, Expected New Generation Mwh | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 300 | ' | 285 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Business Acquisition Potential Cash Payment | 40,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Unrecorded Unconditional Purchase Obligation [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Purchase Obligations, Due within One Year | ' | ' | ' | 140,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 264,000,000 | ' | ' | 208,000,000 | [8] | 43,000,000 | [9] | 13,000,000 | [10] | 694,000,000 | 110,000,000 | ' | 53,000,000 | 38,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 32,000,000 | 16,000,000 | 217,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 381,000,000 | [11] | 1,000,000 | [12] | 90,000,000 | 12,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 21,000,000 | [13] | 64,000,000 | 1,000,000 | 448,000,000 | [14] | ' | ' | ' | ' | ' | ' | ||||||||||||
Purchase Obligations, Due within Two Years | ' | ' | ' | 171,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 529,000,000 | ' | ' | 353,000,000 | [8] | 163,000,000 | [9] | 13,000,000 | [10] | 1,526,000,000 | 155,000,000 | 84,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 73,000,000 | 8,000,000 | 232,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 169,000,000 | [11] | 2,000,000 | [12] | 112,000,000 | 4,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 40,000,000 | [13] | 83,000,000 | 4,000,000 | 632,000,000 | [14] | ' | ' | ' | ' | ' | ' | ||||||||||||
Purchase Obligations, Due within Three Years | ' | ' | ' | 65,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 393,000,000 | ' | ' | 269,000,000 | [8] | 122,000,000 | [9] | 2,000,000 | [10] | 1,230,000,000 | 52,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 76,000,000 | 5,000,000 | 151,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | [12] | 93,000,000 | 3,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 34,000,000 | [13] | 82,000,000 | 5,000,000 | 240,000,000 | [14] | ' | ' | ' | ' | ' | ' | |||||||||||||
Purchase Obligations, Due within Four Years | ' | ' | ' | 55,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 269,000,000 | ' | ' | 208,000,000 | [8] | 59,000,000 | [9] | 2,000,000 | [10] | 1,276,000,000 | 47,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 77,000,000 | 5,000,000 | 140,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | [12] | 35,000,000 | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | ' | 29,000,000 | [13] | 65,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||
Purchase Obligations, Due within Five Years | ' | ' | ' | 37,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 113,000,000 | ' | ' | 98,000,000 | [8] | 13,000,000 | [9] | 2,000,000 | [10] | 929,000,000 | 31,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 78,000,000 | 5,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,000,000 | [12] | 15,000,000 | 1,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12,000,000 | [13] | 53,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ||||||||||||||
Purchase Obligations, Due after Five Years | ' | ' | ' | 100,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 424,000,000 | ' | ' | 388,000,000 | [8] | 4,000,000 | [9] | 32,000,000 | [10] | 4,318,000,000 | 79,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,212,000,000 | 14,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4,000,000 | [12] | 66,000,000 | 7,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 271,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||
Purchase Obligations, Total | ' | ' | ' | 568,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,992,000,000 | ' | ' | 1,524,000,000 | [8] | 404,000,000 | [9] | 64,000,000 | [10] | 9,973,000,000 | 474,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1,548,000,000 | 53,000,000 | 740,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 550,000,000 | [11] | 13,000,000 | [12] | 411,000,000 | 28,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | 136,000,000 | [13] | 618,000,000 | 12,000,000 | 1,320,000,000 | [14] | ' | ' | ' | ' | ' | ' | ||||||||||||
Unrecorded Unconditional Purchase Obligation, Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Percentage of ownership interest in CENG (as a percent) | ' | 67.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 50.01% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Operating Leases Future Minimum Payments Due Table [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum future operating lease payments due in three years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 9,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum future operating lease payments due in four years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum future operating lease payments due in five years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
Minimum future operating lease payments due beyond five years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $270,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||||||||||||||||||
[1] | Non-debt letters of credit maintained to provide credit support for certain transactions as requested by third parties. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[2] | Represents the maximum amount that Generation would be required to pay for retrospective premiums in the event of nuclear disaster at any domestic site, including CENG sites, under the Secondary Financial Protection pool as required under the Price-Anderson Act as well as the current aggregate annual retrospective premium obligation that could be imposed by NEIL. See the Nuclear Insurance section within this note for additional details on Generationbs nuclear insurance premiums. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[3] | Primarily reflects parental guarantees issued on behalf of Generation to allow the flexibility needed to conduct business with counterparties without having to post other forms of collateral. Also reflects guarantees issued to ensure performance under specific contracts, preferred securities of financing trusts, property leases, indemnifications, NRC minimum funding assurance requirements and miscellaneous guarantees. The estimated net exposure for obligations under commercial transactions covered by these guarantees was $0.6 billion at June 30, 2014, which represents the total amount Exelon could be required to fund based on June 30, 2014 market prices. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[4] | Primarily reflects guarantees issued to ensure performance under energy marketing and other specific contracts. The estimated net exposure for obligations under commercial transactions covered by these guarantees was $0.3 billion at June 30, 2014, which represents the total amount Generation could be required to fund based on June 30, 2014 market prices. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[5] | Primarily reflects full and unconditional guarantees of $200 million Trust Preferred Securities of ComEd Financing III, which is a 100% owned finance subsidiary of ComEd. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[6] | Primarily reflects full and unconditional guarantees of $178 million Trust Preferred Securities of PECO Trust III and IV, which are 100% owned finance subsidiaries of PECO. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[7] | Primarily reflects full and unconditional guarantees of $250 million Trust Preferred Securities of BGE Capital Trust II, which is a 100% owned finance subsidiary of BGE. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[8] | Net capacity purchases include PPAs and other capacity contracts including those that are accounted for as operating leases. Amounts presented in the commitments represent Generation's expected payments under these arrangements at June 30, 2014, net of fixed capacity payments expected to be received by Generation under contracts to resell such acquired capacity to third parties under long-term capacity sale contracts. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[9] | The table excludes renewable energy purchases that are contingent in nature. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[10] | Transmission rights purchases include estimated commitments for additional transmission rights that will be required to fulfill firm sales contracts. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[11] | PECO entered into various contracts for the procurement of electric supply to serve its default service customers that expire between 2014 and 2016. PECO is permitted to recover its electric supply procurement costs from default service customers with no mark-up in accordance with its PAPUC-approved DSP Programs. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[12] | PECO is subject to requirements related to the use of alternative energy resources established by the AEPS Act. See Note 5 - Regulatory Matters for additional information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[13] | BGE has entered into various contracts with curtailment services providers related to transactions in PJM's capacity market. See Note 5 - Regulatory Matters for additional information | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[14] | BGE has entered into various contracts with curtailment services providers related to transactions in PJM's capacity market. See Note 5 - Regulatory Matters for additional information. |
Supplemental_Financial_Informa2
Supplemental Financial Information -Operations (Detail) (USD $) | 3 Months Ended | 6 Months Ended | |||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | ||||
Operating revenues [Abstract] | ' | ' | ' | ' | ' | ||||
Total operating revenues | $6,024 | $6,141 | $6,141 | $13,261 | [1] | $12,223 | [1] | ||
Taxes Excluding Income And Excise Taxes [Abstract] | ' | ' | ' | ' | ' | ||||
Total taxes other than income | 288 | ' | 271 | 580 | 548 | ||||
Equity Method Investment Summarized Financial Information Gross Profit Loss [Abstract] | ' | ' | ' | ' | ' | ||||
Total income (loss) in equity method investments | 0 | ' | -21 | -20 | -30 | ||||
Decommissioning-Related Activities [Abstract] | ' | ' | ' | ' | ' | ||||
Net realized income on decommissioning trust funds - Regulatory Agreement Units | 68 | [2] | ' | 47 | [2] | 111 | [2] | 84 | [2] |
Net realized income on decommissioning trust funds - Non-Regulatory Agreement Units | 38 | [2] | ' | 16 | [2] | 63 | [2] | 30 | [2] |
Net unrealized income (losses) on decommissioning trust funds - Regulatory Agreement Units | 172 | ' | -102 | 234 | 92 | ||||
Net unrealized income (losses) on decommissioning trust funds - Non-Regulatory Agreement | 128 | ' | -40 | 141 | 24 | ||||
Net unrealized income (losses) on pledged assets | 10 | ' | 2 | 20 | 3 | ||||
Regulatory offset to decommissioning trust fund-related activities | -204 | [3] | ' | 40 | [3] | -299 | [3] | -148 | [4] |
Investment income | 7 | ' | 2 | 8 | 5 | ||||
Total decommissioning-related activities | 212 | ' | -37 | 270 | 85 | ||||
Long-term lease income | 10 | ' | 5 | 17 | 13 | ||||
Interest income related to uncertain income tax positions | -2 | ' | -1 | 7 | 24 | ||||
Credit facility termination fees | 0 | ' | 0 | 0 | 0 | ||||
AFUDC - equity | 5 | ' | 5 | 11 | 12 | ||||
Other Income | 11 | ' | ' | 35 | ' | ||||
Other Expense | ' | ' | 9 | ' | 16 | ||||
Other, net | 243 | ' | -17 | 348 | 155 | ||||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ||||
Operating revenues [Abstract] | ' | ' | ' | ' | ' | ||||
Total operating revenues | 3,789 | ' | 4,070 | 8,179 | 7,603 | ||||
Taxes Excluding Income And Excise Taxes [Abstract] | ' | ' | ' | ' | ' | ||||
Total taxes other than income | 118 | ' | 101 | 223 | 194 | ||||
Equity Method Investment Summarized Financial Information Gross Profit Loss [Abstract] | ' | ' | ' | ' | ' | ||||
Total income (loss) in equity method investments | -1 | ' | -21 | -20 | -30 | ||||
Decommissioning-Related Activities [Abstract] | ' | ' | ' | ' | ' | ||||
Net realized income on decommissioning trust funds - Regulatory Agreement Units | 68 | [2] | ' | 47 | [2] | 111 | [2] | 84 | [2] |
Net realized income on decommissioning trust funds - Non-Regulatory Agreement Units | 38 | [2] | ' | 16 | [2] | 63 | [2] | 30 | [2] |
Net unrealized income (losses) on decommissioning trust funds - Regulatory Agreement Units | 172 | ' | -102 | 234 | 92 | ||||
Net unrealized income (losses) on decommissioning trust funds - Non-Regulatory Agreement | 128 | ' | -40 | 141 | 24 | ||||
Net unrealized income (losses) on pledged assets | 10 | ' | 2 | 20 | 3 | ||||
Regulatory offset to decommissioning trust fund-related activities | -204 | [3] | ' | 40 | [3] | -299 | [3] | -148 | [4] |
Investment income | 7 | ' | 0 | 8 | -1 | ||||
Total decommissioning-related activities | 212 | ' | -37 | 270 | 85 | ||||
Interest income related to uncertain income tax positions | 3 | ' | -2 | 17 | 3 | ||||
Credit facility termination fees | 0 | ' | 0 | 0 | 0 | ||||
AFUDC - equity | 0 | ' | ' | 0 | ' | ||||
Other Income | 6 | ' | ' | 23 | ' | ||||
Other Expense | ' | ' | 6 | ' | 8 | ||||
Other, net | 228 | ' | -33 | 318 | 95 | ||||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ||||
Operating revenues [Abstract] | ' | ' | ' | ' | ' | ||||
Total operating revenues | 1,128 | ' | 1,080 | 2,262 | 2,239 | ||||
Taxes Excluding Income And Excise Taxes [Abstract] | ' | ' | ' | ' | ' | ||||
Total taxes other than income | 72 | ' | 71 | 149 | 145 | ||||
Decommissioning-Related Activities [Abstract] | ' | ' | ' | ' | ' | ||||
Investment income | 0 | ' | ' | 0 | 0 | ||||
Interest income related to uncertain income tax positions | 0 | ' | 0 | 0 | 0 | ||||
AFUDC - equity | 0 | ' | 3 | 3 | 6 | ||||
Other Income | 5 | ' | 3 | 7 | 5 | ||||
Other, net | 5 | ' | 6 | 10 | 11 | ||||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ||||
Operating revenues [Abstract] | ' | ' | ' | ' | ' | ||||
Total operating revenues | 656 | ' | 672 | 1,649 | 1,567 | ||||
Taxes Excluding Income And Excise Taxes [Abstract] | ' | ' | ' | ' | ' | ||||
Total taxes other than income | 38 | ' | 39 | 80 | 80 | ||||
Decommissioning-Related Activities [Abstract] | ' | ' | ' | ' | ' | ||||
Investment income | -1 | ' | -1 | -1 | -1 | ||||
Interest income related to uncertain income tax positions | 0 | ' | ' | 0 | ' | ||||
AFUDC - equity | 1 | ' | 1 | 3 | 2 | ||||
Other Income | 1 | ' | 0 | 1 | 2 | ||||
Other, net | 1 | ' | 0 | 3 | 3 | ||||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ||||
Operating revenues [Abstract] | ' | ' | ' | ' | ' | ||||
Total operating revenues | 653 | ' | 653 | 1,707 | 1,533 | ||||
Taxes Excluding Income And Excise Taxes [Abstract] | ' | ' | ' | ' | ' | ||||
Total taxes other than income | 53 | ' | 54 | 113 | 109 | ||||
Decommissioning-Related Activities [Abstract] | ' | ' | ' | ' | ' | ||||
Investment income | 2 | [5] | ' | 2 | [5] | 4 | [5] | 5 | [5] |
Interest income related to uncertain income tax positions | 0 | ' | ' | 0 | ' | ||||
AFUDC - equity | 3 | ' | 2 | 6 | 4 | ||||
Other Income | 0 | ' | 0 | -1 | 0 | ||||
Other, net | $5 | ' | $4 | $9 | $9 | ||||
[1] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. | ||||||||
[2] | Includes investment income and realized gains and losses on sales of investments of the trust funds. | ||||||||
[3] | Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of net income taxes related to all NDT fund activity for those units. See Note 15 b Asset Retirement Obligations of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | ||||||||
[4] | Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | ||||||||
[5] | Relates to the cash return on BGEbs rate stabilization deferral. See Note 5 - Regulatory Matters for additional information regarding the rate stabilization deferral. |
Supplemental_Financial_Informa3
Supplemental Financial Information - Cash Flow (Details) (USD $) | 3 Months Ended | 6 Months Ended | ||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | ||
Depreciation, Amortization and Accretion [Abstract] | ' | ' | ' | ' | ||
Property, plant and equipment | ' | ' | $1,015 | $942 | ||
Regulatory assets | ' | ' | 117 | 112 | ||
Amortization of intangible assets, net | ' | ' | 22 | 22 | ||
Amortization of energy contract assets and liabilities | ' | ' | 113 | [1] | 306 | [1] |
Nuclear fuel | ' | ' | 499 | [1] | 454 | [1] |
Asset retirement obligation accretion | ' | ' | 159 | [2] | 136 | [2] |
Total depreciation, amortization and accretion | ' | ' | 1,925 | 1,972 | ||
Other Non-Cash Operating Activities [Abstract] | ' | ' | ' | ' | ||
Pension and non-pension postretirement benefits costs | ' | ' | 315 | 409 | ||
Provision for uncollectible accounts | ' | ' | 59 | 55 | ||
Provision for Obsolete Inventory | ' | ' | 3 | ' | ||
Stock-based compensation costs | ' | ' | 68 | 70 | ||
Other Decommissioning Related Activity | ' | ' | -85 | [3] | -62 | [3] |
Energy-related options | ' | ' | 63 | [4] | 65 | [4] |
Amortization of regulatory asset related to debt costs | ' | ' | 5 | 6 | ||
Amortization of rate stabilization deferral | ' | ' | 33 | 29 | ||
Amortization of debt fair value adjustment | ' | ' | -26 | -22 | ||
Discrete impacts from EIMA | ' | ' | 9 | -126 | [5] | |
Merger related commitments | ' | ' | ' | -6 | ||
Gain (loss) on equity method investments | 0 | 21 | 20 | 30 | ||
Impairment in investment of direct financing leases | ' | ' | 24 | ' | ||
Impairment Of Long Lived Asets Held For Use | ' | ' | 86 | ' | ||
Amortization of debt costs | ' | ' | 19 | 8 | ||
Other | ' | ' | -26 | -17 | ||
Total other noncash operating activities | ' | ' | 567 | 576 | ||
Changes In Other Assets and Liabilities [Abstract] | ' | ' | ' | ' | ||
Under/over-recovered energy and transmission costs | ' | ' | 60 | -24 | ||
Other regulatory assets and liabilities | ' | ' | 25 | -3 | ||
Other current assets and liabilities | ' | ' | -157 | -123 | ||
Other noncurrent assets and liabilities | ' | ' | -158 | 277 | ||
Total changes in other assets and liabilities | ' | ' | -280 | 133 | ||
Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] | ' | ' | ' | ' | ||
Debt exchange | ' | ' | 131 | ' | ||
Consolidated VIE dividend to non-controlling interest | ' | ' | -415 | 63 | ||
Non Cash Fair Value Adjust for CENG | ' | ' | 3,400 | ' | ||
Non Cash Debt Instrument Issued | ' | ' | 38 | ' | ||
Total noncash investing and financing activities | ' | ' | -3,569 | 63 | ||
DOE Smart Grid Investment Grant [Abstract] | ' | ' | ' | ' | ||
Amount included in capital expenditures | ' | ' | 2 | 41 | ||
Smart Grid Grant Reimbursements | ' | ' | 3 | 50 | ||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ||
Depreciation, Amortization and Accretion [Abstract] | ' | ' | ' | ' | ||
Property, plant and equipment | ' | ' | 444 | 402 | ||
Regulatory assets | ' | ' | ' | 0 | ||
Amortization of intangible assets, net | ' | ' | 22 | 22 | ||
Amortization of energy contract assets and liabilities | ' | ' | 118 | [1] | 344 | [1] |
Nuclear fuel | ' | ' | 499 | [1] | 454 | [1] |
Asset retirement obligation accretion | ' | ' | 159 | [2] | 136 | [2] |
Total depreciation, amortization and accretion | ' | ' | 1,242 | 1,358 | ||
Other Non-Cash Operating Activities [Abstract] | ' | ' | ' | ' | ||
Pension and non-pension postretirement benefits costs | ' | ' | 139 | 173 | ||
Provision for uncollectible accounts | ' | ' | 8 | 10 | ||
Provision for Obsolete Inventory | ' | ' | 3 | ' | ||
Stock-based compensation costs | ' | ' | 0 | 0 | ||
Other Decommissioning Related Activity | ' | ' | -85 | [3] | -62 | [3] |
Energy-related options | ' | ' | 63 | [4] | 65 | [4] |
Amortization of debt fair value adjustment | ' | ' | -12 | -22 | ||
Merger related commitments | ' | ' | ' | 0 | ||
Gain (loss) on equity method investments | 1 | 21 | 20 | 30 | ||
Impairment Of Long Lived Asets Held For Use | ' | ' | 86 | ' | ||
Amortization of debt costs | ' | ' | 6 | 5 | ||
Other | ' | ' | -19 | -7 | ||
Total other noncash operating activities | ' | ' | 209 | 315 | ||
Changes In Other Assets and Liabilities [Abstract] | ' | ' | ' | ' | ||
Other current assets and liabilities | ' | ' | 13 | -134 | ||
Other noncurrent assets and liabilities | ' | ' | -69 | -34 | ||
Total changes in other assets and liabilities | ' | ' | -56 | -168 | ||
Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] | ' | ' | ' | ' | ||
Consolidated VIE dividend to non-controlling interest | ' | ' | -415 | 63 | ||
Non Cash Fair Value Adjust for CENG | ' | ' | 3,400 | ' | ||
Non Cash Debt Instrument Issued | ' | ' | 38 | ' | ||
Total noncash investing and financing activities | ' | ' | -3,438 | 63 | ||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ||
Depreciation, Amortization and Accretion [Abstract] | ' | ' | ' | ' | ||
Property, plant and equipment | ' | ' | 290 | 275 | ||
Regulatory assets | ' | ' | 57 | 62 | ||
Amortization of intangible assets, net | ' | ' | ' | 0 | ||
Total depreciation, amortization and accretion | ' | ' | 347 | 337 | ||
Other Non-Cash Operating Activities [Abstract] | ' | ' | ' | ' | ||
Pension and non-pension postretirement benefits costs | ' | ' | 96 | 154 | ||
Provision for uncollectible accounts | ' | ' | -8 | 4 | ||
Provision for Obsolete Inventory | ' | ' | 1 | ' | ||
Stock-based compensation costs | ' | ' | 0 | 0 | ||
Amortization of regulatory asset related to debt costs | ' | ' | 4 | 5 | ||
Discrete impacts from EIMA | ' | ' | 9 | -126 | [5] | |
Amortization of debt costs | ' | ' | -3 | 2 | ||
Other | ' | ' | 0 | 0 | ||
Total other noncash operating activities | ' | ' | 99 | 39 | ||
Changes In Other Assets and Liabilities [Abstract] | ' | ' | ' | ' | ||
Under/over-recovered energy and transmission costs | ' | ' | 61 | -61 | ||
Other regulatory assets and liabilities | ' | ' | 30 | 28 | ||
Other current assets and liabilities | ' | ' | -5 | 2 | ||
Other noncurrent assets and liabilities | ' | ' | 22 | 304 | ||
Total changes in other assets and liabilities | ' | ' | 48 | 217 | ||
Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] | ' | ' | ' | ' | ||
Allocation Of Tax Benefit From Parent | ' | ' | 2 | ' | ||
Indemnification of like-kind exchange position | ' | ' | -112 | 0 | ||
Total noncash investing and financing activities | ' | ' | -2 | 174 | ||
Commonwealth Edison Co [Member] | Indemnification Agreement [Member] | ' | ' | ' | ' | ||
Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] | ' | ' | ' | ' | ||
Indemnification of like-kind exchange position | ' | ' | 2 | -174 | ||
PECO Energy Co [Member] | ' | ' | ' | ' | ||
Depreciation, Amortization and Accretion [Abstract] | ' | ' | ' | ' | ||
Property, plant and equipment | ' | ' | 112 | 109 | ||
Regulatory assets | ' | ' | 5 | 4 | ||
Amortization of intangible assets, net | ' | ' | ' | 0 | ||
Total depreciation, amortization and accretion | ' | ' | 117 | 113 | ||
Other Non-Cash Operating Activities [Abstract] | ' | ' | ' | ' | ||
Pension and non-pension postretirement benefits costs | ' | ' | 21 | 21 | ||
Provision for uncollectible accounts | ' | ' | 28 | 27 | ||
Stock-based compensation costs | ' | ' | 0 | 0 | ||
Amortization of regulatory asset related to debt costs | ' | ' | 1 | 1 | ||
Amortization of debt costs | ' | ' | 1 | 1 | ||
Other | ' | ' | -1 | 0 | ||
Total other noncash operating activities | ' | ' | 50 | 50 | ||
Changes In Other Assets and Liabilities [Abstract] | ' | ' | ' | ' | ||
Under/over-recovered energy and transmission costs | ' | ' | -6 | 19 | ||
Other regulatory assets and liabilities | ' | ' | 13 | 5 | ||
Other current assets and liabilities | ' | ' | -89 | -62 | ||
Other noncurrent assets and liabilities | ' | ' | -6 | -1 | ||
Total changes in other assets and liabilities | ' | ' | -114 | -49 | ||
DOE Smart Grid Investment Grant [Abstract] | ' | ' | ' | ' | ||
Amount included in capital expenditures | ' | ' | 2 | 12 | ||
Smart Grid Grant Reimbursements | ' | ' | 3 | 16 | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ||
Depreciation, Amortization and Accretion [Abstract] | ' | ' | ' | ' | ||
Property, plant and equipment | ' | ' | 142 | 128 | ||
Regulatory assets | ' | ' | 55 | 47 | ||
Amortization of intangible assets, net | ' | ' | ' | 0 | ||
Total depreciation, amortization and accretion | ' | ' | 197 | 175 | ||
Other Non-Cash Operating Activities [Abstract] | ' | ' | ' | ' | ||
Pension and non-pension postretirement benefits costs | ' | ' | 33 | 27 | ||
Provision for uncollectible accounts | ' | ' | 30 | 14 | ||
Stock-based compensation costs | ' | ' | 0 | 0 | ||
Amortization of regulatory asset related to debt costs | ' | ' | 0 | 0 | ||
Amortization of rate stabilization deferral | ' | ' | 33 | 29 | ||
Merger related commitments | ' | ' | ' | -6 | ||
Amortization of debt costs | ' | ' | 1 | ' | ||
Other | ' | ' | -8 | -3 | ||
Total other noncash operating activities | ' | ' | 89 | 61 | ||
Changes In Other Assets and Liabilities [Abstract] | ' | ' | ' | ' | ||
Under/over-recovered energy and transmission costs | ' | ' | 8 | 18 | ||
Other regulatory assets and liabilities | ' | ' | 49 | 82 | ||
Other current assets and liabilities | ' | ' | 51 | 99 | ||
Other noncurrent assets and liabilities | ' | ' | -2 | 28 | ||
Total changes in other assets and liabilities | ' | ' | 8 | 63 | ||
Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] | ' | ' | ' | ' | ||
Indemnification of like-kind exchange position | ' | ' | 0 | 0 | ||
DOE Smart Grid Investment Grant [Abstract] | ' | ' | ' | ' | ||
Amount included in capital expenditures | ' | ' | ' | 29 | ||
Smart Grid Grant Reimbursements | ' | ' | ' | $34 | ||
[1] | Included in purchased power and fuel expense on the Registrants' Consolidated Statements of Operations and Comprehensive Income | |||||
[2] | Included in operating and maintenance expense on the Registrants' Consolidated Statements of Operations and Comprehensive Income | |||||
[3] | Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 of the Exelon 2013 Form 10-K for additional information regarding the accounting for nuclear decommissioning. | |||||
[4] | Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations. | |||||
[5] | Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate tariff. See Note 5 b Regulatory Matters for more information. |
Supplemental_Financial_Informa4
Supplemental Financial Information - Balance Sheet (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||||
Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2010 | Dec. 31, 2013 | Sep. 30, 2000 | ||||
Investments In Affiliates Subsidiaries Associates And Joint Ventures [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Equity Method Investments | $0 | ' | ' | ' | $0 | ' | ' | $1,925,000,000 | ' | |||
Supplemental Financial Information Textuals [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Payment to IRS | ' | ' | ' | ' | ' | ' | 302,000,000 | ' | ' | |||
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Estimated residual value of leased assets | 685,000,000 | ' | ' | ' | 685,000,000 | ' | ' | 1,465,000,000 | 1,600,000,000 | |||
Less: unearned income | -332,000,000 | ' | ' | ' | -332,000,000 | ' | ' | -767,000,000 | ' | |||
Net investment in long-term leases | 353,000,000 | ' | ' | ' | 353,000,000 | ' | ' | 698,000,000 | ' | |||
ImpairedAssetsFairValue | 65,000,000 | ' | ' | ' | 65,000,000 | ' | ' | ' | ' | |||
Tangible Asset Impairment Charges | ' | ' | ' | ' | 86,000,000 | ' | ' | ' | ' | |||
CapitalLeaseNetInvestmentInDirectFinancingLeasesPrepaymentsReceived | 1,200,000,000 | ' | ' | ' | 1,200,000,000 | ' | ' | ' | ' | |||
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Utilities Operating Expense, Impairments | ' | ' | 92,000,000 | 21,000,000 | ' | ' | ' | ' | ' | |||
Operating and maintenance | 2,166,000,000 | 1,000,000 | 1,892,000,000 | ' | 4,024,000,000 | 3,656,000,000 | ' | ' | ' | |||
Interest Costs Incurred [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Interest Costs Incurred | ' | ' | ' | ' | ' | 8,000,000 | ' | ' | ' | |||
Cash Proceeds from Direct Finance Lease Contract Termination | ' | ' | ' | ' | 335,000,000 | ' | ' | ' | ' | |||
Capital Leases Written Off | 336,000,000 | ' | ' | ' | 336,000,000 | ' | ' | ' | ' | |||
Accrued Liabilities Current [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Taxes accrued | 285,000,000 | ' | ' | ' | 285,000,000 | ' | ' | ' | ' | |||
Total accrued expenses | 1,382,000,000 | ' | ' | ' | 1,382,000,000 | ' | ' | 1,633,000,000 | ' | |||
Property, Plant And Equipment [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated depreciation | 14,369,000,000 | [1] | ' | ' | ' | 14,369,000,000 | [1] | ' | ' | 13,713,000,000 | [2] | ' |
Accumulated amortization of nuclear fuel | 2,411,000,000 | ' | ' | ' | 2,411,000,000 | ' | ' | 2,371,000,000 | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Allowance for uncollectible accounts | 293,000,000 | ' | ' | ' | 293,000,000 | ' | ' | 272,000,000 | ' | |||
Accumulated Other Comprehensive Income (Loss) [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated other comprehensive income (loss), net | -1,906,000,000 | [3] | ' | ' | ' | -1,906,000,000 | [3] | ' | ' | -2,040,000,000 | [3] | ' |
CPS Board San Antonio, Texas | EquipmentLeasedToOtherPartyMember | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Interest Costs Incurred [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Cash Proceeds from Direct Finance Lease Contract Termination | ' | ' | ' | ' | 335,000,000 | 0 | ' | ' | ' | |||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Investments In Affiliates Subsidiaries Associates And Joint Ventures [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Equity Method Investments | 0 | ' | ' | ' | 0 | ' | ' | 1,925,000,000 | ' | |||
Capital Leases, Net Investment in Direct Financing Leases [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
ImpairedAssetsFairValue | 65,000,000 | ' | ' | ' | 65,000,000 | ' | ' | ' | ' | |||
Tangible Asset Impairment Charges | ' | ' | ' | ' | 86,000,000 | ' | ' | ' | ' | |||
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Utilities Operating Expense, Impairments | ' | ' | 92,000,000 | 21,000,000 | ' | ' | ' | ' | ' | |||
Operating and maintenance | 1,255,000,000 | ' | 1,041,000,000 | ' | 2,194,000,000 | 2,007,000,000 | ' | ' | ' | |||
Interest Costs Incurred [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Interest Costs Incurred | ' | ' | ' | ' | ' | 8,000,000 | ' | ' | ' | |||
Accrued Liabilities Current [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Total accrued expenses | 819,000,000 | ' | ' | ' | 819,000,000 | ' | ' | 976,000,000 | ' | |||
Property, Plant And Equipment [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated depreciation | 7,397,000,000 | [1] | ' | ' | ' | 7,397,000,000 | [1] | ' | ' | 7,034,000,000 | [2] | ' |
Accumulated amortization of nuclear fuel | 2,411,000,000 | ' | ' | ' | 2,411,000,000 | ' | ' | 2,371,000,000 | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Allowance for uncollectible accounts | 56,000,000 | ' | ' | ' | 56,000,000 | ' | ' | 57,000,000 | ' | |||
Accumulated Other Comprehensive Income (Loss) [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated other comprehensive income (loss), net | 37,000,000 | [3] | ' | ' | ' | 37,000,000 | [3] | ' | ' | 214,000,000 | [3] | ' |
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Operating and maintenance | 316,000,000 | ' | 319,000,000 | ' | 603,000,000 | 611,000,000 | ' | ' | ' | |||
Accrued Liabilities Current [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Total accrued expenses | 274,000,000 | ' | ' | ' | 274,000,000 | ' | ' | 307,000,000 | ' | |||
Property, Plant And Equipment [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated depreciation | 3,325,000,000 | ' | ' | ' | 3,325,000,000 | ' | ' | 3,184,000,000 | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Allowance for uncollectible accounts | 71,000,000 | ' | ' | ' | 71,000,000 | ' | ' | 62,000,000 | ' | |||
Accumulated Other Comprehensive Income (Loss) [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated other comprehensive income (loss), net | 0 | ' | ' | ' | 0 | ' | ' | 0 | ' | |||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Operating and maintenance | 160,000,000 | ' | 155,000,000 | ' | 416,000,000 | 319,000,000 | ' | ' | ' | |||
Accrued Liabilities Current [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Total accrued expenses | 167,000,000 | ' | ' | ' | 167,000,000 | ' | ' | 106,000,000 | ' | |||
Property, Plant And Equipment [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated depreciation | 2,969,000,000 | ' | ' | ' | 2,969,000,000 | ' | ' | 2,935,000,000 | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Allowance for uncollectible accounts | 124,000,000 | ' | ' | ' | 124,000,000 | ' | ' | 107,000,000 | ' | |||
Installment plan receivables | 21,000,000 | ' | ' | ' | 21,000,000 | ' | ' | 19,000,000 | ' | |||
Installment plan receivables uncollectible accounts reserve | -20,000,000 | ' | ' | ' | -20,000,000 | ' | ' | -18,000,000 | ' | |||
Accumulated Other Comprehensive Income (Loss) [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated other comprehensive income (loss), net | 1,000,000 | [3] | ' | ' | ' | 1,000,000 | [3] | ' | ' | 1,000,000 | [3] | ' |
PECO Energy Co [Member] | Low To Medium Risk [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Installment plan receivables uncollectible accounts reserve | -1,000,000 | ' | ' | ' | -1,000,000 | ' | ' | -1,000,000 | ' | |||
PECO Energy Co [Member] | Medium Risk [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Installment plan receivables uncollectible accounts reserve | -4,000,000 | ' | ' | ' | -4,000,000 | ' | ' | -4,000,000 | ' | |||
PECO Energy Co [Member] | High Risk [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Installment plan receivables uncollectible accounts reserve | -15,000,000 | ' | ' | ' | -15,000,000 | ' | ' | -13,000,000 | ' | |||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Utilities Operating Expense Maintenance And Operations [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Operating and maintenance | 163,000,000 | ' | 139,000,000 | ' | 326,000,000 | 266,000,000 | ' | ' | ' | |||
Accrued Liabilities Current [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Total accrued expenses | 95,000,000 | ' | ' | ' | 95,000,000 | ' | ' | 111,000,000 | ' | |||
Property, Plant And Equipment [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Accumulated depreciation | 2,781,000,000 | ' | ' | ' | 2,781,000,000 | ' | ' | 2,702,000,000 | ' | |||
Accounts receivable, net | ' | ' | ' | ' | ' | ' | ' | ' | ' | |||
Allowance for uncollectible accounts | $42,000,000 | ' | ' | ' | $42,000,000 | ' | ' | $46,000,000 | ' | |||
[1] | Includes accumulated amortization of nuclear fuel in the reactor core of $2,411 million. | |||||||||||
[2] | Includes accumulated amortization of nuclear fuel in the reactor core of $2,371 million. | |||||||||||
[3] | (a) All amounts are net of tax. Amounts in parenthesis represent a decrease in accumulated other comprehensive income. |
Segment_Information_Details
Segment Information (Details) (USD $) | 3 Months Ended | 6 Months Ended | ||||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | ||||
ReportableSegments | ||||||||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | $6,024 | $6,141 | $6,141 | $13,261 | [1] | $12,223 | [1] | ' | ||
Operating revenues from affiliates | 0 | ' | 0 | ' | ' | ' | ||||
Income taxes | 277 | ' | 239 | 224 | 294 | ' | ||||
Net income (loss) | 557 | ' | 497 | ' | 498 | ' | ||||
Total assets | 83,656 | ' | ' | 83,656 | ' | 79,924 | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Number of reportable segments | ' | ' | ' | 9 | ' | ' | ||||
Unrealized Gain (Loss) on Derivatives | ' | ' | ' | -751 | 28 | ' | ||||
Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | -1,155 | [1] | -1,334 | [1] | ' | ||
Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | 441 | [2] | ' | ' | |||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Number of reportable segments | ' | ' | ' | 6 | ' | ' | ||||
Exelon Generation Co L L C [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | 517 | [3],[4] | 710 | [3],[4] | ' | ||
Exelon Generation Co L L C [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 3,789 | ' | 4,070 | 8,179 | [1],[4] | 7,603 | [1],[4] | ' | ||
Operating revenues from affiliates | 201 | ' | 329 | ' | ' | ' | ||||
Net income (loss) | 372 | ' | 328 | 188 | [4] | 310 | [4] | ' | ||
Total assets | 44,422 | ' | ' | 44,422 | ' | 41,232 | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Utility taxes | 21 | ' | 18 | 45 | 39 | ' | ||||
Exelon Generation Co L L C [Member] | Baltimore Gas And Electric Company Affiliate [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 87 | ' | ' | 207 | 212 | ' | ||||
Exelon Generation Co L L C [Member] | Commonwealth Edison Co Affiliate [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 65 | ' | 121 | 173 | 266 | ' | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Unrealized Gain (Loss) on Derivatives | 0 | ' | -10 | ' | -7 | ' | ||||
Exelon Generation Co L L C [Member] | PECO Energy Co Affiliate [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 49 | ' | 97 | 137 | 238 | ' | ||||
Generation Mid Atlantic [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 1,277 | ' | 1,229 | 2,695 | 2,552 | ' | ||||
Revenue net of purchased power and fuel expense, Total | 920 | ' | 768 | 1,615 | 1,612 | ' | ||||
Generation Mid Atlantic [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 5 | ' | 9 | -18 | 1 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | 14 | ' | -2 | -75 | -10 | ' | ||||
Generation Mid Atlantic [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 1,272 | [5] | ' | 1,220 | [5] | 2,713 | [2] | 2,551 | [2] | ' |
Revenue net of purchased power and fuel expense from external customers | 906 | [6] | ' | 770 | [6] | 1,690 | [6] | 1,622 | [6] | ' |
Generation Mid Atlantic [Member] | Baltimore Gas And Electric Company Affiliate [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | 99 | ' | ' | ' | ||||
Generation Midwest [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 981 | ' | 1,071 | 2,251 | 2,259 | ' | ||||
Revenue net of purchased power and fuel expense, Total | 605 | ' | 684 | 1,161 | 1,401 | ' | ||||
Generation Midwest [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 0 | ' | -5 | 12 | 2 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | 1 | ' | -3 | 27 | 4 | ' | ||||
Generation Midwest [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 981 | [5] | ' | 1,076 | [5] | 2,239 | [2] | 2,257 | [2] | ' |
Revenue net of purchased power and fuel expense from external customers | 604 | [6] | ' | 687 | [6] | 1,134 | [6] | 1,397 | [6] | ' |
Generation New England [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 212 | ' | 189 | 761 | 592 | ' | ||||
Revenue net of purchased power and fuel expense, Total | 64 | ' | 50 | 200 | 80 | ' | ||||
Generation New England [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 1 | ' | -20 | 5 | -8 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | -24 | ' | -35 | -42 | -23 | ' | ||||
Generation New England [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 211 | [5] | ' | 209 | [5] | 756 | [2] | 600 | [2] | ' |
Revenue net of purchased power and fuel expense from external customers | 88 | [6] | ' | 85 | [6] | 242 | [6] | 103 | [6] | ' |
Generation New York [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 194 | ' | 174 | 381 | 343 | ' | ||||
Revenue net of purchased power and fuel expense, Total | 148 | ' | 14 | 127 | -8 | ' | ||||
Generation New York [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 0 | ' | -1 | -3 | -7 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | 6 | ' | 14 | 14 | 8 | ' | ||||
Generation New York [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 194 | [5] | ' | 175 | [5] | 384 | [2] | 350 | [2] | ' |
Revenue net of purchased power and fuel expense from external customers | 142 | [6] | ' | 0 | [6] | 113 | [6] | -16 | [6] | ' |
Generation ERCOT [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 197 | ' | 315 | 440 | 608 | ' | ||||
Revenue net of purchased power and fuel expense, Total | 59 | ' | 112 | 142 | 213 | ' | ||||
Generation ERCOT [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | -1 | ' | -4 | -1 | -4 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | -58 | ' | ' | -130 | -42 | ' | ||||
Generation ERCOT [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 198 | [5] | ' | 319 | [5] | ' | 612 | [2] | ' | |
Revenue net of purchased power and fuel expense from external customers | 117 | [6] | ' | 143 | [6] | 272 | [6] | 255 | [6] | ' |
Generation Other Regions [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 308 | [7] | ' | 240 | [7] | 649 | [7] | 465 | [7] | ' |
Revenue net of purchased power and fuel expense, Total | 75 | [7] | ' | 59 | [7] | 180 | [7] | 105 | [7] | ' |
Generation Other Regions [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | -6 | [7] | ' | -6 | [7] | 1 | [7] | 36 | [7] | ' |
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | -82 | [7] | ' | -52 | [7] | -127 | [7] | -17 | [7] | ' |
Generation Other Regions [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 314 | [5],[7] | ' | 246 | [5],[7] | 648 | [2],[7] | 429 | [2],[7] | ' |
Revenue net of purchased power and fuel expense from external customers | 157 | [6],[7] | ' | 111 | [6],[7] | 307 | [6],[7] | 122 | [6],[7] | ' |
Generation Reportable Segments Total [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 3,169 | ' | 3,218 | 7,177 | 6,819 | ' | ||||
Revenue net of purchased power and fuel expense, Total | 1,871 | ' | 1,687 | 3,425 | 3,403 | ' | ||||
Generation Reportable Segments Total [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | -1 | ' | -27 | -4 | 20 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | -143 | ' | -109 | -333 | -80 | ' | ||||
Generation Reportable Segments Total [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 3,170 | [5] | ' | 3,245 | [5] | 7,181 | [2] | 6,799 | [2] | ' |
Revenue net of purchased power and fuel expense from external customers | 2,014 | [6] | ' | 1,796 | [6] | 3,758 | [6] | 3,483 | [6] | ' |
Generation Total Consolidated Group [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 3,789 | ' | 4,070 | 8,179 | 7,603 | ' | ||||
Revenue net of purchased power and fuel expense from external customers | 1,954 | [6] | ' | 2,124 | [6] | ' | ' | ' | ||
Revenue net of purchased power and fuel expense, Total | 1,954 | ' | 2,124 | 2,988 | 3,489 | ' | ||||
Generation Total Consolidated Group [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | 0 | 0 | 0 | ' | ||||
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | 0 | ' | 0 | ' | ' | ' | ||||
Generation Total Consolidated Group [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 3,789 | [5] | ' | 4,070 | [5] | 8,179 | [2] | 7,603 | [2] | ' |
Revenue net of purchased power and fuel expense from external customers | ' | ' | ' | 2,988 | [6] | 3,489 | [6] | ' | ||
Generation All Other Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 620 | [8] | ' | 852 | [8] | 1,002 | [9] | 784 | [9] | ' |
Revenue net of purchased power and fuel expense, Total | ' | ' | 437 | [10] | -437 | [11] | 86 | [11] | ' | |
Generation All Other Segments [Member] | Other Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 619 | [5],[8] | ' | 825 | [5],[8] | 998 | [2],[9] | 804 | [2],[9] | ' |
Revenue net of purchased power and fuel expense from external customers | -60 | [10],[6] | ' | 328 | [10],[6] | -770 | [11],[6] | 6 | [11],[6] | ' |
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Amortization of intangible assets related to commodity contracts | 125 | ' | 404 | ' | ' | ' | ||||
Amortization Of Intangible Assets Related To Commodity Contracts For Revenue Net Purchased Power And Fuel | 44 | ' | 257 | ' | ' | ' | ||||
Generation All Other Segments [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 1 | [8] | ' | 27 | [8] | 4 | -20 | [9] | ' | |
Revenue net of purchased power and fuel expense from transactions with other operating segments of the same entity | 143 | [10] | ' | 109 | [10] | 333 | [11] | 80 | [11] | ' |
Commonwealth Edison Co [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | 1 | [3] | 1 | [3] | ' | ||
Commonwealth Edison Co [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 1,128 | ' | 1,080 | 2,262 | [1] | 2,239 | [1] | ' | ||
Operating revenues from affiliates | 0 | ' | 0 | ' | ' | ' | ||||
Net income (loss) | 111 | ' | 96 | 209 | 14 | ' | ||||
Total assets | 24,544 | ' | ' | 24,544 | ' | 24,118 | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Utility taxes | 56 | ' | 56 | 119 | 117 | ' | ||||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Operating revenues from affiliates | 0 | ' | ' | ' | ' | ' | ||||
PECO Energy Co [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | 1 | [3] | 0 | [3] | ' | ||
PECO Energy Co [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 656 | ' | 672 | 1,649 | [1] | 1,567 | [1] | ' | ||
Operating revenues from affiliates | ' | ' | 0 | ' | ' | ' | ||||
Net income (loss) | 84 | ' | 78 | 173 | 200 | ' | ||||
Total assets | 9,761 | ' | ' | 9,761 | ' | 9,617 | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Utility taxes | 30 | ' | 31 | 65 | 64 | ' | ||||
Baltimore Gas and Electric Company [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | 18 | [3] | 8 | [3] | ' | ||
Baltimore Gas and Electric Company [Member] | Operating Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 653 | ' | 653 | 1,707 | [1] | 1,533 | [1] | ' | ||
Operating revenues from affiliates | 2 | ' | 4 | ' | ' | ' | ||||
Net income (loss) | 19 | ' | 25 | 106 | 106 | ' | ||||
Total assets | 7,877 | ' | ' | 7,877 | ' | 7,861 | ||||
Segment Reporting Additional Information [Abstract] | ' | ' | ' | ' | ' | ' | ||||
Utility taxes | 19 | ' | 19 | 43 | 41 | ' | ||||
Corporate and Other [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenue net of purchased power and fuel expense, Total | 83 | [10] | ' | ' | ' | ' | ' | |||
Corporate and Other [Member] | Other Segments [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | 329 | ' | 297 | 619 | [1],[12] | 615 | [1],[12] | ' | ||
Operating revenues from affiliates | 328 | ' | 298 | ' | ' | ' | ||||
Net income (loss) | -29 | ' | -30 | -25 | [12] | -132 | [12] | ' | ||
Total assets | 8,769 | ' | ' | 8,769 | ' | 8,317 | ||||
Corporate and Other [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | ' | ' | ' | 618 | [12],[3] | 615 | [12],[3] | ' | ||
Segment Elimination [Member] | Intersegment Eliminations [Member] | ' | ' | ' | ' | ' | ' | ||||
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ||||
Revenues | -531 | ' | -631 | 0 | [3] | 0 | [3] | ' | ||
Operating revenues from affiliates | -531 | ' | -631 | -1,155 | -1,334 | ' | ||||
Net income (loss) | 0 | ' | 0 | 0 | 0 | ' | ||||
Total assets | ($11,717) | ' | ' | ($11,717) | ' | ($11,221) | ||||
[1] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. | |||||||||
[2] | Includes all wholesale and retail electric sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||
[3] | Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with the Generationbs sale of certain products and services by and between Exelonbs segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations | |||||||||
[4] | Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the six months ended June 30, 2014 include revenue from sales to PECO of $ 137 million and sales to BGE of $ 207 million in the Mid-Atlantic region, and sales to ComEd of $ 173 million in the Midwest region. For the six months ended June 30, 2013 intersegment revenues for Generation include revenue from sales to PECO of $238 million in the Mid-Atlantic region and sales to BGE of $212 million in the Mid-Atlantic region, and sales to ComEd of $266 million in the Midwest region, net of $7 million related to the unrealized mark-to-market losses related to the ComEd swap, which eliminate upon consolidation. | |||||||||
[5] | Includes all electric sales to third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||
[6] | Includes purchases and sales from third parties and affiliated sales to ComEd, PECO and BGE. | |||||||||
[7] | Other regions include the South, West and Canada, which are not considered individually significant. | |||||||||
[8] | Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $88 million and $234 million, for the three months ended June 30, 2014 and 2013, respectively, and elimination of intersegment revenues. | |||||||||
[9] | Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $180 million and $478 million, for the six months ended June 30, 2014 and 2013, respectively, and elimination of intersegment revenues. | |||||||||
[10] | Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $50 million and $167 million for the three months ended June 30, 2014 and 2013, respectively | |||||||||
[11] | Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $92 million and $341 million, for the six months ended June 30, 2014 and 2013, respectively. | |||||||||
[12] | Other primarily includes Exelonbs corporate operations, shared service entities and other financing and investment activities |
Related_Party_Transactions_Det
Related Party Transactions (Details) (USD $) | 3 Months Ended | 6 Months Ended | ||||||
In Millions, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | 15-May-14 | Dec. 31, 2013 | ||
Schedule of Equity Method Investments [Line Items] | ' | ' | ' | ' | ' | ' | ||
Percentage of ownership interest in CENG (as a percent) | ' | ' | ' | ' | 67.00% | ' | ||
Related Party Income Statement Activity [Abstract] | ' | ' | ' | ' | ' | ' | ||
Operating revenues from affiliates | $0 | $0 | ' | ' | ' | ' | ||
Purchased power from affiliate | 66 | 287 | 400 | 605 | ' | ' | ||
Total interest expense to affiliates, net | 10 | 6 | 20 | 13 | ' | ' | ||
Total income (loss) in equity method investments | 0 | -21 | -20 | -30 | ' | ' | ||
Dividends paid on common stock | ' | ' | -533 | -716 | ' | ' | ||
Related Party Balance Sheet [Abstract] | ' | ' | ' | ' | ' | ' | ||
Investments in affiliates | 22 | ' | 22 | ' | ' | 22 | ||
Total payables to affiliates (current) | 38 | ' | 38 | ' | ' | 116 | ||
Equity Method Investment Summarized Financial Information[Abstract] | ' | ' | ' | ' | ' | ' | ||
Purchase of nuclear output by EDF (as a percent) | ' | ' | 49.99% | ' | ' | ' | ||
Amortization of energy contract assets and liabilities | ' | ' | 113 | [1] | 306 | [1] | ' | ' |
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ' | ||
Schedule of Equity Method Investments [Line Items] | ' | ' | ' | ' | ' | ' | ||
Percentage of ownership interest in CENG (as a percent) | 50.01% | ' | 50.01% | ' | ' | ' | ||
Total equity investment earnings (losses) - CENG | 19 | 19 | ' | ' | ' | ' | ||
Basis difference in investment in CENG | 204 | ' | 204 | ' | ' | ' | ||
Related Party Income Statement Activity [Abstract] | ' | ' | ' | ' | ' | ' | ||
Operating revenues from affiliates | 201 | 352 | 535 | 744 | ' | ' | ||
Operating and maintenance from affiliate | 158 | 148 | 305 | 295 | ' | ' | ||
Total interest expense to affiliates, net | -12 | -16 | -25 | -34 | ' | ' | ||
Total income (loss) in equity method investments | -1 | -21 | -20 | -30 | ' | ' | ||
Cash distribution paid to member | ' | ' | 235 | 474 | ' | ' | ||
Contributions from member | ' | ' | 0 | 0 | ' | ' | ||
Related Party Balance Sheet [Abstract] | ' | ' | ' | ' | ' | ' | ||
Mark-to-market derivative assets with affiliates | 0 | ' | 0 | ' | ' | 0 | ||
Total receivables from affiliates (current) | 67 | ' | 67 | ' | ' | 108 | ||
Mark-to-market derivative assets with affiliate (noncurrent assets) | 0 | ' | 0 | ' | ' | 0 | ||
Investments in affiliates | 0 | ' | 0 | ' | ' | 0 | ||
Total payables to affiliates (current) | 108 | ' | 108 | ' | ' | 181 | ||
Total payables to affiliates (noncurrent) | 2,917 | ' | 2,917 | ' | ' | 2,740 | ||
Equity Method Investment Summarized Financial Information[Abstract] | ' | ' | ' | ' | ' | ' | ||
Purchase of nuclear output by EDF (as a percent) | ' | ' | 49.99% | ' | ' | ' | ||
Amortization of energy contract assets and liabilities | ' | ' | 118 | [1] | 344 | [1] | ' | ' |
Exelon Generation Co L L C [Member] | Minimum [Member] | ' | ' | ' | ' | ' | ' | ||
Equity Method Investment Summarized Financial Information[Abstract] | ' | ' | ' | ' | ' | ' | ||
Required purchases of power from CENG's nuclear plants not sold to third parties (as a percent) | ' | ' | 85.00% | ' | ' | ' | ||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ' | ||
Related Party Income Statement Activity [Abstract] | ' | ' | ' | ' | ' | ' | ||
Operating revenues from affiliates | 0 | 0 | 1 | 1 | ' | ' | ||
Purchased power from affiliate | 65 | 121 | 173 | 266 | ' | ' | ||
Operating and maintenance from affiliate | 39 | 40 | 78 | 76 | ' | ' | ||
Total interest expense to affiliates, net | 4 | 4 | 7 | 7 | ' | ' | ||
Dividends paid on common stock | ' | ' | -153 | -110 | ' | ' | ||
Contributions from parent | ' | ' | 112 | 0 | ' | ' | ||
Related Party Balance Sheet [Abstract] | ' | ' | ' | ' | ' | ' | ||
Total receivable from affiliates (noncurrent) | 2,606 | ' | 2,606 | ' | ' | 2,469 | ||
Investments in affiliates | 6 | ' | 6 | ' | ' | 6 | ||
Total payables to affiliates (current) | 37 | ' | 37 | ' | ' | 83 | ||
Mark-to-market derivative liabilities with affiliate (current liabilities) | 0 | ' | 0 | ' | ' | 0 | ||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ' | ||
Related Party Income Statement Activity [Abstract] | ' | ' | ' | ' | ' | ' | ||
Operating revenues from affiliates | 0 | 0 | 1 | 0 | ' | ' | ||
Purchased power from affiliate | 48 | 97 | 135 | 238 | ' | ' | ||
Operating and maintenance from affiliate | 24 | 26 | 48 | 50 | ' | ' | ||
Total interest expense to affiliates, net | 3 | 3 | 6 | 6 | ' | ' | ||
Dividends paid on common stock | ' | ' | -160 | -166 | ' | ' | ||
Related Party Balance Sheet [Abstract] | ' | ' | ' | ' | ' | ' | ||
Total receivable from affiliates (noncurrent) | 490 | ' | 490 | ' | ' | 447 | ||
Investments in affiliates | 8 | ' | 8 | ' | ' | 8 | ||
Total payables to affiliates (current) | 37 | ' | 37 | ' | ' | 58 | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ' | ||
Related Party Income Statement Activity [Abstract] | ' | ' | ' | ' | ' | ' | ||
Operating revenues from affiliates | 2 | 4 | 18 | 8 | ' | ' | ||
Operating and maintenance from affiliate | 25 | 21 | 50 | 37 | ' | ' | ||
Total interest expense to affiliates, net | -4 | -4 | -8 | -8 | ' | ' | ||
Dividends paid on common stock | ' | ' | 0 | 0 | ' | ' | ||
Contributions from parent | ' | ' | 0 | 0 | ' | ' | ||
Related Party Balance Sheet [Abstract] | ' | ' | ' | ' | ' | ' | ||
Investments in affiliates | 8 | ' | 8 | ' | ' | 8 | ||
Total payables to affiliates (current) | $55 | ' | $55 | ' | ' | $55 | ||
[1] | Included in purchased power and fuel expense on the Registrants' Consolidated Statements of Operations and Comprehensive Income |
Quarterly_Data_Details
Quarterly Data (Details) (USD $) | 3 Months Ended | 6 Months Ended | |||||
In Millions, except Per Share data, unless otherwise specified | Jun. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | ||
Earnings Per Share Basic [Abstract] | ' | ' | ' | ' | ' | ||
Average common shares outstanding - basic | 860 | ' | 856 | 860 | 856 | ||
Earnings Per Share, Basic | $0.61 | ' | $0.57 | $0.71 | $0.57 | ||
Earnings Per Share Diluted | ' | ' | ' | ' | ' | ||
Average common shares outstanding - diluted | 864 | ' | 860 | 863 | 859 | ||
Earnings Per Share, Diluted | $0.60 | ' | $0.57 | $0.71 | $0.57 | ||
Selected Quarterly Financial Information [Line Items] | ' | ' | ' | ' | ' | ||
Revenues | $6,024 | $6,141 | $6,141 | $13,261 | [1] | $12,223 | [1] |
Operating Income (Loss) | 829 | ' | 1,005 | 992 | 1,513 | ||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 557 | ' | 497 | ' | 498 | ||
Share Price And Dividend [Abstract] | ' | ' | ' | ' | ' | ||
Close | $35 | ' | ' | $35 | ' | ||
Exelon Generation Co L L C [Member] | ' | ' | ' | ' | ' | ||
Selected Quarterly Financial Information [Line Items] | ' | ' | ' | ' | ' | ||
Revenues | 3,789 | ' | 4,070 | 8,179 | 7,603 | ||
Operating Income (Loss) | 429 | ' | 603 | 41 | 539 | ||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 372 | ' | 328 | 188 | 310 | ||
Commonwealth Edison Co [Member] | ' | ' | ' | ' | ' | ||
Selected Quarterly Financial Information [Line Items] | ' | ' | ' | ' | ' | ||
Revenues | 1,128 | ' | 1,080 | 2,262 | 2,239 | ||
Operating Income (Loss) | 258 | ' | 232 | 496 | 440 | ||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 111 | ' | 96 | 209 | 14 | ||
PECO Energy Co [Member] | ' | ' | ' | ' | ' | ||
Selected Quarterly Financial Information [Line Items] | ' | ' | ' | ' | ' | ||
Revenues | 656 | ' | 672 | 1,649 | 1,567 | ||
Operating Income (Loss) | 134 | ' | 138 | 283 | 341 | ||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 84 | ' | 78 | 173 | 200 | ||
Baltimore Gas and Electric Company [Member] | ' | ' | ' | ' | ' | ||
Selected Quarterly Financial Information [Line Items] | ' | ' | ' | ' | ' | ||
Revenues | 653 | ' | 653 | 1,707 | 1,533 | ||
Operating Income (Loss) | 55 | ' | 69 | 224 | 233 | ||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $19 | ' | $25 | $106 | $106 | ||
[1] | For the six months ended June 30, 2014 and 2013, utility taxes of $45 million and $39 million, respectively, are included in revenues and expenses for Generation. For the six months ended June 30, 2014 and 2013, utility taxes of $119 million and $117 million, respectively, are included in revenues and expenses for ComEd. For the six months ended June 30, 2014 and 2013, utility taxes of $65 million and $64 million, respectively, are included in revenues and expenses for PECO. For the six months ended June 30, 2014 and 2013, utility taxes of $43 million and $41 million, respectively, are included in revenues and expenses for BGE. |
Subsequent_Event_Details
Subsequent Event (Details) (USD $) | 6 Months Ended | |
Jun. 30, 2014 | Jun. 30, 2013 | |
Business Combination, Bargain Purchase [Abstract] | ' | ' |
Payments To Acquire Businesses Gross | $66,000,000 | $3,000,000 |
LineOfCreditFacilityMaximumBorrowingCapacity | 8,500,000,000 | ' |
Pepco Holdings [Member] | ' | ' |
Business Combination, Bargain Purchase [Abstract] | ' | ' |
CashFundingFromNonCoreAssetSale | 1,000,000 | ' |
Business Combination Proposed Customer Benefits Package | 100,000,000 | ' |
OtherLongTermInvestmentsMaximum | 180,000,000 | ' |
Pepco Holdings [Member] | Maximum [Member] | ' | ' |
Business Combination, Bargain Purchase [Abstract] | ' | ' |
BusinessExitCosts | 293,000,000 | ' |
Pepco Holdings [Member] | Minimum [Member] | ' | ' |
Business Combination, Bargain Purchase [Abstract] | ' | ' |
BusinessExitCosts | 259,000,000 | ' |
PECO Energy Co [Member] | ' | ' |
Storm Damage Impact [Abstract] | ' | ' |
Incremental operating and maintenance expense from storm damage (low estimate) | 10,000,000 | ' |
Incremental operating and maintenance expense from storm damage (high estimate) | 20,000,000 | ' |
Incremental capital expenditures from storm damage (low estimate) | 10,000,000 | ' |
Incremental capital expenditures from storm damage (high estimate) | 20,000,000 | ' |
Exelon Generation Co L L C [Member] | ' | ' |
Business Combination, Bargain Purchase [Abstract] | ' | ' |
Payments To Acquire Businesses Gross | -66,000,000 | ' |
Exelon Generation Co L L C [Member] | Subsequent Event [Member] | ' | ' |
BusinessCombinationsAbstract | ' | ' |
PaymentsToAcquireBusinessesNetOfCashAcquired | 60,000,000 | ' |
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Working Capital | $183,000,000 | ' |