The AES Corporation (AES) 10-Q 10 Aug 15 2015 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - $ / shares	6 Months Ended
	Jun. 30, 2015	Aug. 05, 2015	Dec. 31, 2014
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Trading Symbol	AES
Entity Registrant Name	AES CORP
Entity Central Index Key	874,761
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		682,826,854
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 1,022	$ 1,539
Restricted cash	308	283
Short-term investments	439	709
Accounts receivable, net of allowance for doubtful accounts of $94 and $96, respectively	2,877	2,709
Inventory	734	702
Deferred income taxes	213	275
Prepaid expenses	115	175
Other current assets	1,799	1,434
Current assets of held-for-sale businesses	8	0
Total current assets	7,515	7,826
Property, Plant and Equipment:
Land	801	870
Electric generation, distribution assets and other	30,136	30,459
Accumulated depreciation	(9,996)	(9,962)
Construction in progress	2,499	3,784
Property, plant and equipment, net	23,440	25,151
Other Assets:
Investments in and advances to affiliates	562	537
Debt service reserves and other deposits	403	411
Goodwill	1,473	1,458
Other intangible assets, net of accumulated amortization of $130 and $158, respectively	241	281
Deferred income taxes	571	662
Service concession assets	1,538	0
Other noncurrent assets	2,691	2,640
Noncurrent assets of held-for-sale businesses	150	0
Total other assets	7,629	5,989
TOTAL ASSETS	38,584	38,966
CURRENT LIABILITIES
Accounts payable	1,994	2,278
Accrued interest	244	260
Accrued and other liabilities	2,317	2,326
Non-recourse debt, including $220 and $240, respectively, related to variable interest entities	1,999	1,982
Recourse debt	0	151
Current liabilities of held-for-sale businesses	9	0
Total current liabilities	6,563	6,997
NONCURRENT LIABILITIES
Non-recourse debt, including $1,058 and $1,030, respectively, related to variable interest entities	13,750	13,618
Recourse debt	5,014	5,107
Deferred income taxes	1,281	1,277
Pension and other post-retirement liabilities	1,183	1,342
Other noncurrent liabilities	3,110	3,222
Noncurrent liabilities of held-for-sale businesses	61	0
Total noncurrent liabilities	$ 24,399	$ 24,566
Contingencies and Commitments (see Note 9)
Redeemable stock of subsidiaries	$ 538	$ 78
THE AES CORPORATION STOCKHOLDERS’ EQUITY
Common stock ($0.01 par value, 1,200,000,000 shares authorized; 815,558,389 issued and 682,607,128 outstanding at June 30, 2015 and 814,539,146 issued and 703,851,297 outstanding at December 31, 2014)	8	8
Additional paid-in capital	8,705	8,409
Retained earnings	258	512
Accumulated other comprehensive loss	(3,445)	(3,286)
Treasury stock, at cost (132,951,261 shares at June 30, 2015 and 110,687,849 shares at December 31, 2014)	(1,662)	(1,371)
Total AES Corporation stockholders’ equity	3,864	4,272
NONCONTROLLING INTERESTS	3,220	3,053
Total equity	7,084	7,325
TOTAL LIABILITIES AND EQUITY	$ 38,584	$ 38,966

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 94	$ 96
Other intangible assets, accumulated amortization	$ 130	$ 158
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, shares issued (in shares)	815,558,389	814,539,146
Common stock, shares outstanding (in shares)	682,607,128	703,851,297
Treasury stock, shares (in shares)	132,951,261	110,687,849
Variable Interest Entity [Line Items]
Non-recourse debt - current balance at variable interest entities	$ 1,999	$ 1,982
Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Non-recourse debt - current balance at variable interest entities	220	240
Non-recourse debt - current balance at variable interest entities	$ 1,058	$ 1,030

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue:
Regulated	$ 2,008	$ 2,116	$ 4,088	$ 4,258
Non-Regulated	1,850	2,195	3,754	4,315
Total revenue	3,858	4,311	7,842	8,573
Cost of Sales:
Regulated	(1,634)	(1,844)	(3,441)	(3,776)
Non-Regulated	(1,470)	(1,648)	(2,926)	(3,184)
Total cost of sales	(3,104)	(3,492)	(6,367)	(6,960)
Operating margin	754	819	1,475	1,613
General and administrative expenses	(50)	(52)	(105)	(103)
Interest expense	(310)	(323)	(673)	(696)
Interest income	133	73	223	136
Loss on extinguishment of debt	(122)	(15)	(145)	(149)
Other expense	(14)	(17)	(34)	(25)
Other income	15	33	31	45
Goodwill impairment expense	0	0	0	(154)
Asset impairment expense	(37)	(63)	(45)	(75)
Foreign currency transaction gains (losses)	15	7	(8)	(12)
Other non-operating expense	0	(44)	0	(44)
INCOME FROM CONTINUING OPERATIONS BEFORE TAXES AND EQUITY IN EARNINGS OF AFFILIATES	384	418	719	536
Income tax expense	(120)	(157)	(216)	(211)
Net equity in earnings of affiliates	0	20	15	45
INCOME FROM CONTINUING OPERATIONS	264	281	518	370
Income from operations of discontinued businesses, net of income tax expense of $0, $8, $0 and $22, respectively	0	7	0	27	[1]
Net loss from disposal and impairments of discontinued businesses, net of income tax expense (benefit) of $0, $5, $0 and $4, respectively	0	(13)	0	(56)	[1]
NET INCOME	264	275	518	341
Noncontrolling interests:
Less: (Income) from continuing operations attributable to noncontrolling interests	(195)	(139)	(307)	(275)
Less: (Income) loss from discontinued operations attributable to noncontrolling interests	0	(3)	0	9
Total net income attributable to noncontrolling interests	(195)	(142)	(307)	(266)
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION	69	133	211	75
AMOUNTS ATTRIBUTABLE TO THE AES CORPORATION COMMON STOCKHOLDERS:
Income from continuing operations, net of tax	69	142	211	95
Loss from discontinued operations, net of tax	0	(9)	0	(20)
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION	69	$ 133	211	75
Treasury Stock, Value, Acquired, Cost Method	$ 271		$ 307	$ 32
BASIC EARNINGS PER SHARE:
Income from continuing operations attributable to The AES Corporation common stockholders, net of tax	$ 0.10	$ 0.20	$ 0.30	$ 0.13
Loss from discontinued operations attributable to The AES Corporation common stockholders, net of tax	0	(0.02)	0	(0.03)
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION COMMON STOCKHOLDERS	0.10	0.18	0.30	0.10
DILUTED EARNINGS PER SHARE:
Income from continuing operations attributable to The AES Corporation common stockholders, net of tax	0.10	0.20	0.30	0.13
Loss from discontinued operations attributable to The AES Corporation common stockholders, net of tax	0	(0.02)	0	(0.03)
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION COMMON STOCKHOLDERS	$ 0.10	$ 0.18	$ 0.30	$ 0.10
DILUTED SHARES OUTSTANDING (in shares)	695	728	701	728
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.10	$ 0.05	$ 0.10	$ 0.05
[1]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions)Revenue$— $104 $— $233Income from operations of discontinued businesses, before income tax$— $15 $— $49Income tax expense— (8) — (22)Income from operations of discontinued businesses, after income tax$— $7 $— $27Net loss from disposal & impairments of discontinued businesses, after income tax$— $(13) $— $(56)

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Income from operations of discontinued businesses, income tax expense	$ 0	$ 8	$ 0	$ 22	[1]
Net loss from disposal and impairments of discontinued businesses, income tax expense	$ 0	$ 5	$ 0	$ 4
[1]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions)Revenue$— $104 $— $233Income from operations of discontinued businesses, before income tax$— $15 $— $49Income tax expense— (8) — (22)Income from operations of discontinued businesses, after income tax$— $7 $— $27Net loss from disposal & impairments of discontinued businesses, after income tax$— $(13) $— $(56)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 264	$ 275	$ 518	$ 341
Foreign currency translation activity:
Foreign currency translation adjustments, net of income tax (expense) benefit of $0, $(7), $0 and $(8), respectively	77	24	(344)	29
Reclassification to earnings, net of income tax (expense) benefit of $0 for all periods	0	(53)	0	(47)
Total foreign currency translation adjustments	77	(29)	(344)	(18)
Derivative activity:
Change in derivative fair value, net of income tax (expense) benefit of $(20), $22, $(3) and $46, respectively	82	(105)	10	(225)
Reclassification to earnings, net of income tax (expense) benefit of $(1), $(10), $(3) and $(13), respectively	7	13	19	32
Total change in fair value of derivatives	89	(92)	29	(193)
Pension activity:
Change in pension adjustments due to prior service cost, net of income tax (expense) benefit of $0, $(1), $0, and $(1), respectively	0	1	0	1
Change in pension adjustments due to disposal of discontinued operations for the period, net of income tax (expense) benefit of $0, $(9), $0 and $(9), respectively	0	14	0	14
Reclassification to earnings due to amortization of net actuarial loss, net of income tax (expense) benefit of $(2), $2, $(5) and $(1), respectively	4	10	9	16
Total pension adjustments	4	25	9	31
OTHER COMPREHENSIVE INCOME (LOSS)	170	(96)	(306)	(180)
COMPREHENSIVE INCOME	434	179	212	161
Less: Comprehensive (income) attributable to noncontrolling interests	(261)	(102)	(173)	(227)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO THE AES CORPORATION	$ 173	$ 77	$ 39	$ (66)

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Change in fair value of available-for-sale securities, income tax	$ 0	$ 0	$ 0	$ 0
Available-for-sale securities, reclassification to earnings, income tax	0	0	0	0
Foreign currency translation adjustments, income tax	0	(7)	0	(8)
Foreign currency, reclassification to earnings, income tax	0	0	0	0
Change in derivative fair value, income tax	(20)	22	(3)	46
Derivative reclassification to earnings, income tax	(1)	(10)	(3)	(13)
Pension, amortization of net actuarial gain (loss), income tax	(2)	2	(5)	(1)
Pension, prior service costs, income tax	0	(1)	0	(1)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, before Reclassification Adjustments, Tax	$ 0	$ (9)	$ 0	$ (9)

Condensed Consolidated Stateme8

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
OPERATING ACTIVITIES:
Net income	$ 518	$ 341
Adjustments to net income:
Depreciation and amortization	597	625
Impairment expenses	45	273
Deferred income taxes	17	52
Releases of contingencies	(134)	(48)
Loss on the extinguishment of debt	145	149
Loss on sale of assets	12	8
Loss on disposals and impairments — discontinued operations	0	51
Other	70	45
Changes in operating assets and liabilities
(Increase) decrease in accounts receivable	(444)	(312)
(Increase) decrease in inventory	(54)	(39)
(Increase) decrease in prepaid expenses and other current assets	132	(72)
(Increase) decrease in other assets	(815)	(316)
Increase (decrease) in accounts payable and other current liabilities	179	(194)
Increase (Decrease) in income tax payables, net and other tax payables	(131)	(176)
Increase (decrease) in other liabilities	453	66
Net cash provided by operating activities	590	453
INVESTING ACTIVITIES:
Capital expenditures	(1,168)	(908)
Acquisitions, net of cash acquired	(18)	(728)
Proceeds from the sale of businesses, net of cash sold	2	890
Proceeds from the sale of assets	1	16
Sale of short-term investments	2,460	2,198
Purchase of short-term investments	(2,270)	(1,925)
(Increase) decrease in restricted cash, debt service reserves and other assets	(51)	127
Other investing	(26)	(61)
Net cash used in investing activities	(1,070)	(391)
FINANCING ACTIVITIES:
Borrowings under the revolving credit facilities	361	737
Issuance of recourse debt	575	1,525
Issuance of non-recourse debt	1,940	1,710
Repayments under the revolving credit facilities	(359)	(607)
Repayments of recourse debt	(915)	(1,663)
Repayments of non-recourse debt	(1,457)	(1,349)
Payments for financing fees	(40)	(105)
Distributions to noncontrolling interests	(113)	(197)
Contributions from noncontrolling interests	97	110
Proceeds from the sale of redeemable stock of subsidiaries	461	0
Dividends paid on AES common stock	(141)	(72)
Payments for financed capital expenditures	(84)	(312)
Purchase of treasury stock	(307)	(32)
Other financing	(29)	5
Net cash used in financing activities	(11)	(250)
Effect of exchange rate changes on cash	(19)	(14)
(Decrease) increase in cash of discontinued and held-for-sale businesses	(7)	75
Total decrease in cash and cash equivalents	(517)	(127)
Cash and cash equivalents, beginning	1,539	1,642
Cash and cash equivalents, ending	1,022	1,515
SUPPLEMENTAL DISCLOSURES:
Cash payments for interest, net of amounts capitalized	665	676
Cash payments for income taxes, net of refunds	247	332
SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Assets received upon sale of subsidiaries	0	44
Assets acquired through capital lease	$ 10	$ 13

Financial Statement Presentatio

Financial Statement Presentation	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
FINANCIAL STATEMENT PRESENTATION	FINANCIAL STATEMENT PRESENTATION Consolidation In this Quarterly Report the terms “AES,” “the Company,” “us” or “we” refer to the consolidated entity including its subsidiaries and affiliates. The terms “The AES Corporation,” “the Parent” or “the Parent Company” refer only to the publicly held holding company, The AES Corporation, excluding its subsidiaries and affiliates. Furthermore, VIEs in which the Company has a variable interest have been consolidated where the Company is the primary beneficiary. Investments in which the Company has the ability to exercise significant influence, but not control, are accounted for using the equity method of accounting. All intercompany transactions and balances have been eliminated in consolidation. Interim Financial Presentation The accompanying unaudited condensed consolidated financial statements and footnotes have been prepared in accordance with GAAP, as contained in the FASB ASC, for interim financial information and Article 10 of Regulation S-X issued by the SEC. Accordingly, they do not include all the information and footnotes required by GAAP for annual fiscal reporting periods. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position, comprehensive income and cash flows. The results of operations for the three and six months ended June 30, 2015 are not necessarily indicative of results that may be expected for the year ending December 31, 2015 . The accompanying condensed consolidated financial statements are unaudited and should be read in conjunction with the 2014 audited consolidated financial statements and notes thereto, which are included in the 2014 Form 10-K filed with the SEC on February 25, 2015 (the “ 2014 Form 10-K”). New Accounting Pronouncements Adopted ASU No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity Effective July 1, 2014, the Company prospectively adopted ASU No. 2014-08, which significantly changed the previous accounting guidance on discontinued operations. Under ASU No. 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results will be reported as discontinued operations. Other changes were as follows: equity method investments that were previously scoped-out of the discontinued operations accounting guidance are now included in the scope; a business can meet the criteria to be classified as held-for-sale upon acquisition and can be reported in discontinued operations; and components where an entity retains significant continuing involvement or where operations and cash flows will not be eliminated from ongoing operations as a result of a disposal transaction can meet the definition of discontinued operations. Additionally, where summarized amounts are presented on the face of the financial statements, reconciliations of those amounts to major classes of line items are also required. ASU No. 2014-08 requires additional disclosures for individually material components that do not meet the definition of discontinued operations. Under the previous accounting guidance, the UK Wind and Ebute disposals in the third and fourth quarters of 2014, respectively, would have met the discontinued operations criteria and would have been reclassified accordingly. Additionally, Armenia Mountain, which met the held-for-sale criteria in the first quarter of 2015, would have met the discontinued operations criteria under the previous accounting guidance and would have been reclassified accordingly. ASU No. 2014-05, Service Concession Arrangements (Topic 853) Effective January 1, 2015, the Company adopted ASU No. 2014-05, which states that certain service concession arrangements with public-sector entity grantors are not in scope of ASC 840, Leases and that entities should not recognize the related infrastructure as property, plant and equipment, but should apply other GAAP. The Company has a small number of entities that fall within the scope of this guidance, with the Company’s Mong Duong generation facility in Vietnam being the most significant. Mong Duong is a build, operate and transfer agreement with the Vietnam government. Management concluded there were two deliverables included within the arrangement, as well as a financing element. Due to the contingent nature of the revenue stream, no amounts of revenue could be recognized during the build phase of the contract. All amounts billed during the operate phase are recognized as revenue when billed, with amounts allocated between the financing element and build and operate deliverables. The financing element is recognized as interest income using the effective interest method as payments for construction of the plant are received over the life of the contract. Costs are expensed as incurred. As the related infrastructure is no longer considered property, plant and equipment, there are no longer any capitalizable expenses beyond those related to the initial build, and accordingly these will be expensed as incurred. All cash flows, excluding those related to the debt incurred by AES for these arrangements will be reflected in cash flows from operating activities on the Company’s Condensed Consolidated Statements of Cash Flows prospectively. The guidance was applied on a modified retrospective basis to service concession arrangements in existence at January 1, 2015. Upon adoption of this standard, the impact to the Company’s Condensed Consolidated Balance Sheet as of January 1, 2015 resulted in a reclassification of $1.5 billion from property, plant and equipment to service concession assets, as well as a cumulative adjustment to retained earnings and cumulative translation adjustment of $(18) million , net of tax, and $13 million , respectively. Accounting Pronouncements Issued But Not Yet Effective The following accounting standards have been issued but are not yet effective for, nor have been adopted by AES: ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory In July 2015, the FASB issued ASU No. 2015-11, which simplifies the subsequent measurement of inventory. It replaces the current lower of cost or market test with a lower of cost or net realizable value test. The standard is effective for public entities for annual reporting periods beginning after December 15, 2016, and interim periods therein. Early adoption is permitted. The new guidance must be applied prospectively. The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements. ASU No. 2015-05, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement In April 2015, the FASB issued ASU No. 2015-05, which clarifies how customers in cloud computing arrangements should determine whether the arrangement includes a software license and eliminates the existing requirement for customers to account for software licenses they acquired by analogizing to the accounting guidance on leases. The standard is effective for annual reporting periods beginning after December 15, 2015 and interim periods therein. Early adoption is permitted. The standard permits the use of a prospective or retrospective approach. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the standard on its consolidated financial statements. ASU No. 2015-03, Interest — Imputation of Interest (Subtopic 835-30) In April 2015, the FASB issued ASU No. 2015-03, which simplifies the presentation of debt issuance costs by requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update. The standard is effective for annual reporting periods beginning after December 15, 2015 and interim periods therein, and requires the use of the full retrospective approach. Early adoption is permitted for financial statements that have not been previously issued. As of June 30, 2015 , the Company had approximately $385 million in deferred financing costs classified in other noncurrent assets that would be reclassified to reduce the related debt liabilities upon adoption of ASU No. 2015-03. ASU No. 2015-02, Consolidation — Amendments to the Consolidation Analysis (Topic 810) In February 2015, the FASB issued ASU 2015-02, which makes targeted amendments to the current consolidation guidance and ends the deferral granted to investment companies from applying the VIE guidance. The standard amends the evaluation of whether (1) fees paid to a decision-maker or service providers represent a variable interest, (2) a limited partnership or similar entity has the characteristics of a VIE and (3) a reporting entity is the primary beneficiary of a VIE. The standard is effective for annual periods beginning after December 15, 2015 and interim periods therein. Early adoption is permitted. The Company is currently assessing the impact of the standard on its consolidated financial statements. ASU No. 2014-12, Compensation — Stock Compensation (Topic 718) In June 2014, the FASB issued ASU No. 2014-12, which is intended to resolve the diverse accounting treatment in practice with compensation awards. The objective of the new standard is to clarify the treatment of accounting for performance targets that affect award vesting. The standard is effective for annual reporting periods beginning after December 15, 2015 and interim periods therein. Early adoption is permitted. The standard permits the use of either a prospective or modified retrospective approach. The Company has not yet selected a transition method and is currently evaluating the impact of the standard on its financial position and results of operations. ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In May 2014, the FASB issued ASU No. 2014-09 which clarifies principles for recognizing revenue and will result in a common revenue standard for U.S. GAAP and International Financial Reporting Standards. The objective of the new standard is to provide a single and comprehensive revenue recognition model for all contracts with customers to improve comparability. The revenue standard contains principles that an entity will apply to determine the measurement of revenue and timing of when it is recognized. The standard requires an entity to recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. In July 2015, the FASB decided to defer the effective date by one year, resulting in the new revenue standard being effective for annual reporting periods beginning after December 15, 2017 and interim periods therein. Early adoption is now permitted only as of the original effective date for public entities (that is, no earlier than 2017 for calendar year-end entities). The standard permits the use of either a full retrospective or modified retrospective approach. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the standard on its consolidated financial statements.

Inventory

Inventory	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
INVENTORY	INVENTORY The following table summarizes the Company’s inventory balances as of the periods indicated: June 30, 2015 December 31, 2014 (in millions) Fuel and other raw materials $ 391 $ 357 Spare parts and supplies 343 345 Total $ 734 $ 702

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
FAIR VALUE	FAIR VALUE The fair value of current financial assets and liabilities, debt service reserves and other deposits approximate their reported carrying amounts. The estimated fair value of the Company’s assets and liabilities have been determined using available market information. By virtue of these amounts being estimates and based on hypothetical transactions to sell assets or transfer liabilities, the use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. There were no changes in fair valuation techniques during the period and the Company continues to follow the valuation techniques described in Note 4.— Fair Value in Item 8.— Financial Statements and Supplementary Data of its 2014 Form 10-K. Recurring Measurements The following table sets forth, by level within the fair value hierarchy, the Company’s financial assets and liabilities that were measured at fair value on a recurring basis as of the periods indicated: June 30, 2015 December 31, 2014 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Assets AVAILABLE FOR SALE: (1) Debt securities: Unsecured debentures $ — $ 332 $ — $ 332 $ — $ 501 $ — $ 501 Certificates of deposit — 79 — 79 — 151 — 151 Government debt securities — 33 — 33 — 57 — 57 Subtotal — 444 — 444 — 709 — 709 Equity securities: Mutual funds — 18 — 18 — 25 — 25 Subtotal — 18 — 18 — 25 — 25 Total available for sale — 462 — 462 — 734 — 734 TRADING: Equity securities: Mutual funds 15 — — 15 15 — — 15 Total trading 15 — — 15 15 — — 15 DERIVATIVES: Foreign currency derivatives — 14 237 251 — 18 218 236 Commodity derivatives — 44 18 62 — 37 7 44 Total derivatives — 58 255 313 — 55 225 280 TOTAL ASSETS $ 15 $ 520 $ 255 $ 790 $ 15 $ 789 $ 225 $ 1,029 Liabilities DERIVATIVES: Interest rate derivatives $ — $ 178 $ 191 $ 369 $ — $ 206 $ 210 $ 416 Cross-currency derivatives — 32 — 32 — 29 — 29 Foreign currency derivatives — 38 15 53 — 43 9 52 Commodity derivatives — 23 1 24 — 16 1 17 Total derivatives — 271 207 478 — 294 220 514 TOTAL LIABILITIES $ — $ 271 $ 207 $ 478 $ — $ 294 $ 220 $ 514 _____________________________ (1) Amortized cost approximated fair value at June 30, 2015 and December 31, 2014 . The following tables present a reconciliation of net derivative assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2015 and 2014 (presented net by type of derivative). Transfers between Level 3 and Level 2 are determined as of the end of the reporting period and principally result from changes in the significance of unobservable inputs used to calculate the credit valuation adjustment. Three Months Ended June 30, 2015 Interest Rate Foreign Currency Commodity Cross Currency Total (in millions) Balance at the beginning of the period $ (302 ) $ 223 $ 4 $ (33 ) $ (108 ) Total gains (losses) (realized and unrealized): Included in earnings — 7 — — 7 Included in other comprehensive income — derivative activity 57 — — — 57 Included in other comprehensive income — foreign currency translation activity (4 ) (6 ) — — (10 ) Included in regulatory (assets) liabilities — — 8 — 8 Settlements 5 (2 ) 5 1 9 Transfers of (assets) liabilities out of Level 3 53 — — 32 85 Balance at the end of the period $ (191 ) $ 222 $ 17 $ — $ 48 Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ — $ 5 $ (1 ) $ — $ 4 Three Months Ended June 30, 2014 Interest Rate Foreign Currency Commodity Total (in millions) Balance at the beginning of the period $ (87 ) $ 101 $ — $ 14 Total gains (losses) (realized and unrealized): Included in earnings — 10 3 13 Included in other comprehensive income — derivative activity (30 ) — — (30 ) Included in other comprehensive income — foreign currency translation activity — (2 ) — (2 ) Included in regulatory (assets) liabilities — — 15 15 Settlements 3 (2 ) (2 ) (1 ) Transfers of assets (liabilities) into Level 3 (69 ) — — (69 ) Balance at the end of the period $ (183 ) $ 107 $ 16 $ (60 ) Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ — $ 9 $ — $ 9 Six Months Ended June 30, 2015 Interest Rate Foreign Currency Commodity Total (in millions) Balance at the beginning of the period $ (210 ) $ 209 $ 6 $ 5 Total gains (losses) (realized and unrealized): Included in earnings — 30 2 32 Included in other comprehensive income — derivative activity 3 — — 3 Included in other comprehensive income — foreign currency translation activity 7 (13 ) — (6 ) Included in regulatory (assets) liabilities — — 8 8 Settlements 9 (4 ) 1 6 Balance at the end of the period $ (191 ) $ 222 $ 17 $ 48 Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ — $ 26 $ 2 $ 28 Six Months Ended June 30, 2014 Interest Rate Foreign Currency Commodity Total (in millions) Balance at the beginning of the period $ (101 ) $ 93 $ 4 $ (4 ) Total gains (losses) (realized and unrealized): Included in earnings 1 37 1 39 Included in other comprehensive income — derivative activity (99 ) (1 ) — (100 ) Included in other comprehensive income — foreign currency translation activity — (20 ) — (20 ) Included in regulatory (assets) liabilities — — 12 12 Settlements 16 (3 ) (1 ) 12 Transfers of (assets) liabilities out of Level 3 — 1 — 1 Balance at the end of the period $ (183 ) $ 107 $ 16 $ (60 ) Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ 1 $ 34 $ — $ 35 The table below summarizes the significant unobservable inputs used for Level 3 derivative assets (liabilities) as of June 30, 2015 : Type of Derivative Fair Value Unobservable Input Amount or Range (Weighted Avg) (in millions) Interest rate $ (191 ) Subsidiaries’ credit spreads 3.75% — 7.34% (5.17%) Foreign currency: Derivative — Argentine Peso 220 Argentine Peso to USD currency exchange rate after one year 13.71 — 36.10 (24.25) Embedded derivative — Euro 2 Subsidiaries’ credit spreads 4.84% — 7.34% (6.09%) Commodity: Other 17 Total $ 48 Nonrecurring Measurements When evaluating impairment of goodwill, long-lived assets, discontinued operations and held-for-sale businesses, and equity method investments, the Company measures fair value using the applicable fair value measurement guidance. Impairment expense is measured by comparing the fair value at the evaluation date to their then-latest available carrying amount. The following table summarizes major categories of assets and liabilities measured at fair value on a nonrecurring basis during the period indicated and their level within the fair value hierarchy: Six Months Ended June 30, 2015 Carrying Amount (1) Fair Value (5) Pretax Loss Level 1 Level 2 Level 3 (in millions) Assets Equity method investment: Solar Spain $ 29 $ — $ — $ 29 $ — Long-lived assets held and used: (2) UK Wind (Development Projects) 38 — 1 — 37 Other 29 — 21 — 8 Six Months Ended June 30, 2014 Carrying Amount (1) Fair Value (5) Pretax Loss Level 1 Level 2 Level 3 (in millions) Assets Long-lived assets held and used: (2) DPL (East Bend) $ 14 $ — $ 2 $ — $ 12 Ebute 99 — — 47 52 UK Wind (Newfield) 11 — — — 11 Discontinued operations and held-for-sale businesses: (3) Cameroon 372 — 334 — 38 Equity method investments Silver Ridge Power 317 — — 273 44 Goodwill: (4) DPLER 136 — — — 136 Buffalo Gap 28 — — 10 18 _____________________________ (1) Represents the carrying value at the date of measurement, before fair value adjustment. (2) See Note 15 —Asset Impairment Expense for further information. (3) See Note 17 —Discontinued Operations and Held-For-Sale Businesses for further information. Fair value of long-lived assets held-for-sale excludes costs to sell. (4) See Note 14 —Goodwill Impairment for further information. (5) Fair value measurements were estimated at various dates within the applicable reporting period and not necessarily as of the period’s end date. The following table summarizes the significant unobservable inputs used in the Level 3 measurement of long-lived assets during the six months ended June 30, 2015 : Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (in millions) Equity method investment: Solar Spain $ 29 Discounted cash flow Annual revenue growth -3% to 0% (0%) Annual pretax operating margin -13% to 56% (24%) Cost of equity 12 % Financial Instruments not Measured at Fair Value in the Condensed Consolidated Balance Sheets The following table sets forth the carrying amount, fair value and fair value hierarchy of the Company’s financial assets and liabilities that are not measured at fair value in the Condensed Consolidated Balance Sheets as of June 30, 2015 and December 31, 2014 , but for which fair value is disclosed. Carrying Amount Fair Value Total Level 1 Level 2 Level 3 (in millions) June 30, 2015 Assets Accounts receivable — noncurrent (1) $ 260 $ 247 $ — $ — $ 247 Liabilities Non-recourse debt 15,749 16,101 — 12,644 3,457 Recourse debt 5,014 5,150 — 5,150 — December 31, 2014 Assets Accounts receivable — noncurrent (1) $ 301 $ 290 $ — $ — $ 290 Liabilities Non-recourse debt 15,600 16,008 — 12,538 3,470 Recourse debt 5,258 5,552 — 5,552 — _____________________________ (1) These accounts receivable principally relate to amounts due from CAMMESA, and are included in Noncurrent assets—Other in the accompanying Condensed Consolidated Balance Sheets. The fair value and carrying amount of these receivables exclude VAT of $31 million and $36 million at June 30, 2015 and December 31, 2014 , respectively.

Investments In Marketable Secur

Investments In Marketable Securities	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
INVESTMENTS IN MARKETABLE SECURITIES	INVESTMENTS IN MARKETABLE SECURITIES The Company’s investments in marketable debt and equity securities as of June 30, 2015 and December 31, 2014 by security class and by level within the fair value hierarchy have been disclosed in Note 3 —Fair Value . The security classes are determined based on the nature and risk of a security and are consistent with how the Company manages, monitors and measures its marketable securities. As of June 30, 2015 , $411 million of AFS debt securities had stated maturities within one year and $33 million had stated maturities between one and two years. Gains and losses on the sale of investments are determined using the specific-identification method. For the three and six months ended June 30, 2015 and 2014 , pretax realized gains and losses related to AFS and trading securities were less than $1 million , there were no unrealized losses on AFS securities, and no other-than-temporary impairments of marketable securities were recognized in earnings or OCI. The following table summarizes the gross proceeds from sale of AFS securities for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Gross proceeds from sales of AFS securities $ 1,395 $ 1,158 $ 2,481 $ 2,218

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES There have been no changes to the information disclosed under Derivatives and Hedging Activities in Note 1— General and Summary of Significant Accounting Policies included in Item 8.— Financial Statements and Supplementary Data in the 2014 Form 10-K. Volume of Activity — The following three tables set forth, by type of derivative, the Company’s outstanding notional under its derivatives and the weighted average remaining term as of June 30, 2015 regardless of whether the derivative instruments are in qualifying cash flow hedging relationships: Current Maximum Interest Rate and Cross-Currency (1) Derivative Notional Derivative Notional Translated to USD Derivative Notional Derivative Notional Translated to USD Weighted Average Remaining Term % of Debt Currently Hedged by Index (2) (in millions) (in years) Interest Rate Derivatives: LIBOR (U.S. Dollar) 2,689 $ 2,689 3,061 $ 3,061 11 55 % EURIBOR (Euro) 506 564 506 564 7 75 % Cross-Currency Swaps: Chilean Unidad de Fomento 4 172 4 172 13 82 % _____________________________ (1) The Company’s interest rate derivative instruments primarily include accreting and amortizing notionals. The maximum derivative notional represents the largest notional at any point between June 30, 2015 and the maturity of the derivative instrument, which includes forward-starting derivative instruments. The interest rate and cross-currency derivatives range in maturity through 2033 and 2028 , respectively. (2) The percentage of variable-rate debt currently hedged is based on the related index and excludes forecasted issuances of debt and variable-rate debt tied to other indices where the Company has no interest rate derivatives. Foreign Currency Derivatives Notional (1) Notional Translated to USD Weighted Average Remaining Term (2) (in millions) (in years) Foreign Currency Options and Forwards: Chilean Unidad de Fomento 8 $ 311 <1 Chilean Peso 80,373 126 <1 Brazilian Real 103 33 <1 Euro 107 119 <1 Colombian Peso 145,874 56 <1 Argentine Peso 2,032 224 10 British Pound 16 24 <1 Philippine Peso 751 17 <1 Embedded Foreign Currency Derivatives: Kazakhstani Tenge 3,761 20 1 _____________________________ (1) Represents contractual notionals. The notionals for options have not been probability adjusted, which generally would decrease them. (2) Represents the remaining tenor of our foreign currency derivatives weighted by the corresponding notional. These options and forwards and these embedded derivatives range in maturity through 2025 and 2017 , respectively. Commodity Derivatives Notional Weighted-Average Remaining Term (1) (in millions) (in years) Power (MWh) 9 2 Coal (Metric tons) 1 2 _____________________________ (1) Represents the remaining tenor of our commodity derivatives weighted by the corresponding volume. These derivatives range in maturity through 2017 . Accounting and Reporting — Assets and Liabilities — The following tables present the fair values of the Company’s derivative instruments as of June 30, 2015 and December 31, 2014 , first by whether they are designated hedging instruments, then by whether they are current or noncurrent, to the extent they are subject to master netting agreements or similar agreements (where the rights to set-off relate to settlement of amounts receivable and payable under those derivatives) and by balances no longer accounted for as derivatives. June 30, 2015 December 31, 2014 Designated Not Designated Total Designated Not Designated Total (in millions) Assets Foreign currency derivatives $ 7 $ 244 $ 251 $ 6 $ 230 $ 236 Commodity derivatives 31 31 62 25 19 44 Total assets $ 38 $ 275 $ 313 $ 31 $ 249 $ 280 Liabilities Interest rate derivatives $ 369 $ — $ 369 $ 416 $ — $ 416 Cross-currency derivatives 32 — 32 29 — 29 Foreign currency derivatives 32 21 53 38 14 52 Commodity derivatives 11 13 24 7 10 17 Total liabilities $ 444 $ 34 $ 478 $ 490 $ 24 $ 514 June 30, 2015 December 31, 2014 Assets Liabilities Assets Liabilities (in millions) Current $ 91 $ 151 $ 77 $ 148 Noncurrent 222 327 203 366 Total $ 313 $ 478 $ 280 $ 514 Derivatives subject to master netting agreement or similar agreement: Gross amounts recognized in the balance sheet $ 36 $ 425 $ 53 $ 507 Gross amounts of derivative instruments not offset (11 ) (11 ) (10 ) (10 ) Gross amounts of collateral received/pledged not offset — (31 ) — (26 ) Net amount $ 25 $ 383 $ 43 $ 471 Other balances that had been, but are no longer, accounted for as derivatives that are to be amortized to earnings over the remaining term of the associated PPA $ 153 $ 173 $ 161 $ 180 Effective Portion of Cash Flow Hedges — The following tables set forth the pretax gains (losses) recognized in AOCL and earnings related to the effective portion of derivative instruments in qualifying cash flow hedging relationships (including amounts that were reclassified from AOCL as interest expense related to interest rate derivative instruments that previously, but no longer, qualify for cash flow hedge accounting), as defined in the accounting standards for derivatives and hedging, for the periods indicated: Gains (Losses) Recognized in AOCL Gains (Losses) Reclassified from AOCL into Earnings Three Months Ended June 30, Classification in Condensed Consolidated Statements of Operations Three Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) (in millions) Interest rate derivatives $ 94 $ (124 ) Interest expense $ (15 ) $ (33 ) Non-regulated cost of sales (1 ) — Net equity in earnings of affiliates — (2 ) Cross-currency derivatives 1 — Interest expense — 2 Foreign currency transaction gains — 4 Foreign currency derivatives (1 ) 3 Foreign currency transaction gains 2 3 Commodity derivatives 8 (6 ) Non-regulated revenue 10 6 Non-regulated cost of sales (4 ) (3 ) Total $ 102 $ (127 ) $ (8 ) $ (23 ) Gains (Losses) Recognized in AOCL Gains (Losses) Reclassified from AOCL into Earnings Six Months Ended June 30, Classification in Condensed Consolidated Statements of Operations Six Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) (in millions) Interest rate derivatives $ (4 ) $ (274 ) Interest expense $ (39 ) $ (64 ) Non-regulated cost of sales (1 ) (1 ) Net equity in earnings of affiliates — (3 ) Cross-currency derivatives 1 (3 ) Interest expense (1 ) 1 Foreign currency transaction losses — (6 ) Foreign currency derivatives 1 (12 ) Foreign currency transaction gains 8 10 Commodity derivatives 15 18 Non-regulated revenue 15 19 Non-regulated cost of sales (4 ) (1 ) Total $ 13 $ (271 ) $ (22 ) $ (45 ) The pretax accumulated other comprehensive income (loss) expected to be recognized as an increase (decrease) to income from continuing operations before income taxes over the next 12 months as of June 30, 2015 is $(123) million for interest rate hedges, $(5) million for cross-currency swaps, $8 million for foreign currency hedges, and $12 million for commodity and other hedges. For the three and six months ended June 30, 2014 , pretax gains of $6 million , net of noncontrolling interests, were reclassified into earnings as a result of the discontinuance of a cash flow hedge because it was probable that the forecasted transaction would not occur by the end of the originally specified time period (as documented at the inception of the hedging relationship) or within an additional two-month time period thereafter. There were no such reclassifications for the three and six months ended June 30, 2015 . Ineffective Portion of Cash Flow Hedges — The following table presents the pretax gains (losses) recognized in earnings related to the ineffective portion of derivative instruments in qualifying cash flow hedging relationships, as defined in the accounting standards for derivatives and hedging, for the periods indicated: Classification in Condensed Consolidated Statements of Operations Three Months Ended June 30, Six Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) Interest rate derivatives Interest expense $ (1 ) $ 1 $ (1 ) $ 1 Foreign currency derivatives Foreign currency transaction losses — — $ (2 ) $ — Cross-currency derivatives Interest expense — (1 ) — (1 ) Total $ (1 ) $ — $ (3 ) $ — Not Designated for Hedge Accounting — The following table sets forth the gains (losses) recognized in earnings related to derivative instruments not designated as hedging instruments under the accounting standards for derivatives and hedging and the amortization of balances that had been, but are no longer, accounted for as derivatives, for the periods indicated: Classification in Condensed Consolidated Statements of Operations Three Months Ended June 30, Six Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) Foreign currency derivatives Foreign currency transaction gains $ 7 $ 6 39 29 Net equity in earnings of affiliates — 9 — 5 Commodity and other derivatives Non-regulated revenue 1 1 (4 ) 4 Regulated revenue — — — — Non-regulated cost of sales — 2 1 2 Regulated cost of sales (1 ) 2 (5 ) (6 ) Income (loss) from operations of discontinued businesses — (2 ) — (7 ) Net loss from disposal and impairments of discontinued businesses — 72 — 72 Total $ 7 $ 90 $ 31 $ 99 Credit Risk-Related Contingent Features — DP&L has certain over-the-counter commodity derivative contracts under master netting agreements that contain provisions that require DP&L to maintain an investment-grade issuer credit rating from credit rating agencies. Since DP&L’s rating is below investment grade, certain of the counterparties to the derivative contracts have requested immediate and ongoing full overnight collateralization of the mark-to-market loss (fair value excluding credit valuation adjustments), which was $19 million and $12 million as of June 30, 2015 and December 31, 2014 , respectively, for all derivatives with credit risk-related contingent features. As of June 30, 2015 and December 31, 2014 , DP&L had posted $7 million and $5 million , respectively, of cash collateral directly with third parties and in a broker margin account and DP&L held no cash collateral from counterparties to its derivative instruments that were in an asset position.

Financing Receivables

Financing Receivables	6 Months Ended
	Jun. 30, 2015
Receivables [Abstract]
FINANCING RECEIVABLES	FINANCING RECEIVABLES Financing receivables are defined as receivables that have contractual maturities of greater than one year. The Company primarily has financing receivables pursuant to amended agreements or government resolutions that are due from certain governmental bodies in Argentina. The following table presents financing receivables by country as of the periods indicated: June 30, 2015 December 31, 2014 (in millions) Argentina $ 256 $ 278 Cameroon sale (1) — 44 United States 20 — Brazil 15 15 Total long-term financing receivables $ 291 $ 337 _____________________________ (1) Represents non-contingent consideration to be received in 2016 from the sale of the Cameroon businesses in 2014. Balance is classified as short-term as of June 30, 2015 . See Note 17 —Discontinued Operations and Held-For-Sale Businesses . Argentina — Collection of the principal and interest on these receivables is subject to various business risks and uncertainties including, but not limited to, the completion and operation of power plants which generate cash for payments of these receivables, regulatory changes that could impact the timing and amount of collections, and economic conditions in Argentina. The Company monitors these risks including the credit ratings of the Argentine government on a quarterly basis to assess the collectability of these receivables. The Company accrues interest on these receivables once the recognition criteria have been met. The Company’s collection estimates are based on assumptions that it believes to be reasonable, but are inherently uncertain. Actual future cash flows could differ from these estimates.

Investment In and Advances To A

Investment In and Advances To Affiliates	6 Months Ended
	Jun. 30, 2015
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
INVESTMENTS IN AND ADVANCES TO AFFILIATES	INVESTMENTS IN AND ADVANCES TO AFFILIATES Summarized Financial Information — The following table summarizes financial information of the Company’s 50%-or-less-owned affiliates that are accounted for using the equity method. Six Months Ended June 30, 50%-or-less-Owned Affiliates 2015 2014 (in millions) Revenue $ 357 $ 568 Operating margin 86 150 Net income 35 107 Guacolda — On April 11, 2014, AES Gener undertook a series of transactions, pursuant to which AES Gener acquired the interests that it did not previously own in Guacolda for $728 million and simultaneously sold the ownership interest to Global Infrastructure Partners ("GIP") for $730 million . The transaction provided GIP with substantive participating rights in Guacolda and, as a result, the Company continues to account for its investment in Guacolda using the equity method of accounting.

Debt

Debt	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
DEBT	DEBT Recourse Debt — In April 2015, the Company issued $575 million aggregate principal amount of 5.50% senior notes due 2025. Concurrent with this offering, the Company redeemed via tender offers $344 million aggregate principal of its existing 8.00% senior unsecured notes due 2017, and $156 million of its existing 8.00% senior unsecured notes due 2020. As a result of the latter transaction, the Company recognized a loss on extinguishment of debt of $82 million for the three and six months ended June 30, 2015 that is included in the Condensed Consolidated Statement of Operations. In March 2015, the Company redeemed in full the $151 million balance of its 7.75% senior unsecured notes due October 2015 and the $164 million balance of its 9.75% senior unsecured notes due April 2016. As a result of these transactions, the Company recognized a loss on extinguishment of debt of $23 million for the six months ended June 30, 2015 that is included in the Condensed Consolidated Statement of Operations. On May 20, 2014, the Company issued $775 million aggregate principal amount of senior unsecured floating rate notes due June 2019. The notes bear interest at a rate of 3% above three-month LIBOR, reset quarterly. Concurrent with this offering, the Company repaid $767 million of its existing senior secured term loan due 2018. As a result of the latter transaction, the Company recognized a loss on extinguishment of debt of $10 million for the three and six months ended June 30, 2014 that is included in the Condensed Consolidated Statement of Operations. On June 16, 2014, the Company repaid in full the remaining balance of $29 million of its senior secured term loan due 2018. In February 2014, the Company redeemed in full the $110 million balance of its 7.75% senior unsecured notes due March 2014. On March 7, 2014, the Company issued $750 million aggregate principal amount of 5.50% senior notes due 2024. Concurrent with this offering, the Company redeemed via tender offers $625 million aggregate principal of its existing 8.00% senior unsecured notes due 2017. As a result of the latter transaction, the Company recognized a loss on extinguishment of debt of $132 million for the six months ended June 30, 2014 that is included in the Condensed Consolidated Statement of Operations. Non-Recourse Debt — Significant transactions — During the six months ended June 30, 2015 , the Company’s subsidiaries had the following significant debt transactions: • Sul issued new debt of $499 million , partially offset by repayments of $468 million ; • IPALCO issued new debt of $405 million , partially offset by repayments of $384 million ; • Panama issued new debt of $300 million , partially offset by repayments of $287 million ; • Cochrane drew $297 million under its existing construction loans; • Gener drew $150 million on an existing credit facility; • Eletropaulo issued new debt of $118 million ; and • Mong Duong drew $104 million under its construction loan facility. Debt in default — The following table summarizes the Company’s subsidiary non-recourse debt in default as of June 30, 2015 . Due to the defaults, these amounts are included in the current portion of non-recourse debt: Primary Nature of Default June 30, 2015 Subsidiary Debt in Default Net Assets (in millions) Maritza (Bulgaria) Covenant $ 605 $ 612 Kavarna (Bulgaria) Covenant 147 78 Altai (Kazakhstan) Covenant $ 12 16 $ 764 The above defaults are not payment defaults. All of the subsidiary non-recourse debt defaults were triggered by failure to comply with covenants and/or other conditions such as (but not limited to) failure to meet information covenants, complete construction or other milestones in an allocated time, meet certain minimum or maximum financial ratios, or other requirements contained in the non-recourse debt documents of the applicable subsidiary. In the event that there is a default, bankruptcy or maturity acceleration at a subsidiary or group of subsidiaries that meets the applicable definition of materiality under the Parent Company’s corporate debt agreements, there could be a cross-default to the Company’s recourse debt. Materiality is defined in the Parent’s senior secured credit facility as having provided 20% or more of the total cash distributions from businesses to the Parent Company for the four most recently completed fiscal quarters. As of June 30, 2015 , none of the defaults listed above individually or in the aggregate result in or are at risk of triggering a cross-default under the recourse debt of the Parent Company. In the event the Parent Company is not in compliance with the financial covenants of its senior secured credit facility, restricted payments will be limited to regular quarterly shareholder dividends at the then-prevailing rate. Payment defaults and bankruptcy defaults would preclude the making of any restricted payments.

Contingencies and Commitments

Contingencies and Commitments	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES AND COMMITMENTS	CONTINGENCIES AND COMMITMENTS Guarantees, Letters of Credit and Commitments — In connection with certain project financing, acquisition, power purchase and other agreements, the Parent Company has expressly undertaken limited obligations and commitments, most of which will only be effective or will be terminated upon the occurrence of future events. In the normal course of business, the Parent Company has entered into various agreements, mainly guarantees and letters of credit, to provide financial or performance assurance to third parties on behalf of AES subsidiaries. These agreements are entered into primarily to support or enhance the creditworthiness otherwise achieved by a business on a stand-alone basis, thereby facilitating the availability of sufficient credit to accomplish their intended business purposes. Most of the contingent obligations relate to future performance commitments which the Company or its businesses expect to fulfill within the normal course of business. The expiration dates of these guarantees vary from less than one year to more than 19 years . Amounts in the table below represent the Parent Company’s current undiscounted exposure to guarantees and the range of maximum undiscounted potential exposure. The maximum exposure is not reduced by the amounts, if any, that could be recovered under the recourse or collateralization provisions in the guarantees. The amounts include contingent obligations of $18 million made by the Parent Company for the direct benefit of the lenders associated with the non-recourse debt of its businesses. The following table summarizes the Parent Company’s contingent contractual obligations as of June 30, 2015 ($ in millions). Contingent Contractual Obligations Amount Number of Agreements Maximum Exposure Range for Each Agreement Guarantees and commitments $ 359 14 $1 — 53 Asset sale related indemnities (1) 27 1 $27 Cash collateralized letters of credit 49 6 <$1 — 30 Letters of credit under the senior secured credit facility 61 7 <$1 — 29 Total $ 496 28 _____________________________ (1) Excludes normal and customary representations and warranties in agreements for the sale of assets (including ownership in associated legal entities) where the associated risk is considered to be nominal. During the three months ended June 30, 2015 , the Company paid letter of credit fees ranging from 0.2% to 2.5% per annum on the outstanding amounts of letters of credit. Environmental — The Company periodically reviews its obligations as they relate to compliance with environmental laws, including site restoration and remediation. As of June 30, 2015 and December 31, 2014 , the Company had recognized liabilities of $10 million and $12 million , respectively, for projected environmental remediation costs. Due to the uncertainties associated with environmental assessment and remediation activities, future costs of compliance or remediation with current legislation or costs for new legislation introduced could be higher or lower than the amount currently accrued. Moreover, where no liability has been recognized, it is reasonably possible that the Company may be required to incur remediation costs or make expenditures in amounts that could be material but could not be estimated as of June 30, 2015 . In aggregate, the Company estimates that the range of potential losses related to environmental matters, where estimable, to be up to $1 million . The amounts considered reasonably possible do not include amounts accrued as discussed above. Litigation — The Company is involved in certain claims, suits and legal proceedings in the normal course of business. The Company accrues for litigation and claims when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. The Company has evaluated claims in accordance with the accounting guidance for contingencies that it deems both probable and reasonably estimable and, accordingly, has recognized aggregate liabilities for all claims of approximately $199 million as of June 30, 2015 and December 31, 2014 . These amounts are reported on the Condensed Consolidated Balance Sheets within Accrued and other liabilities and Other noncurrent liabilities . A significant portion of these accrued liabilities relate to labor and employment, non-income tax and customer disputes in international jurisdictions, principally Brazil where there are a number of labor and employment lawsuits. The complaints generally seek unspecified monetary damages, injunctive relief, or other relief. The subsidiaries have denied any liability and intend to vigorously defend themselves in all of these proceedings. There can be no assurance that these accrued liabilities will be adequate to cover all existing and future claims or that we will have the liquidity to pay such claims as they arise. The Company believes, based upon information it currently possesses and taking into account established accruals for liabilities and its insurance coverage, that the ultimate outcome of these proceedings and actions is unlikely to have a material effect on the Company’s consolidated financial statements. However, where no accrued liability has been recognized, it is reasonably possible that some matters could be decided unfavorably to the Company and could require the Company to pay damages or make expenditures in amounts that could be material but could not be estimated as of June 30, 2015 . The material contingencies where a loss is reasonably possible primarily include claims under financing agreements; disputes with offtakers, suppliers and EPC contractors, alleged violation of monopoly laws and regulations, income tax and non-income tax matters with tax authorities, and regulatory matters. In aggregate, the Company estimates that the range of potential losses, where estimable, related to these reasonably possible material contingencies to be between $1.2 billion and $1.3 billion . Certain claims are in settlement negotiations. The amounts considered reasonably possible do not include amounts accrued, as discussed above. These material contingencies do not include income tax-related contingencies which are considered part of our uncertain tax positions. Regulatory — During the fourth quarter of 2013, the Company recognized a regulatory liability of $269 million for a contingency related to an administrative ruling which required Eletropaulo to refund customers’ amounts related to the regulatory asset base. During the second half of 2014, Eletropaulo started refunding customers as part of the tariff. In January 2015, ANEEL updated the tariff to exclude any further customer refunds. On June 30, 2015, ANEEL included in the tariff reset the reimbursement to Eletropaulo of these amounts previously refunded to customers to begin in July 2015. During the second quarter of 2015, as a result of favorable events, management reassessed the contingency and determined that it no longer meets the recognition criteria under ASC 450. Management believes that it is now only reasonably possible that Eletropaulo will have to refund these amounts to customers. Accordingly, the Company reversed the remaining regulatory liability for this contingency of $161 million in the second quarter of 2015, which increased Regulated Revenue by $97 million and reduced Interest Expense by $64 million . Amounts related to this case are now included as part of our reasonably possible contingent range mentioned in the preceding paragraph.

Pension Plans

Pension Plans	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
PENSION PLANS	PENSION PLANS Total pension cost for the periods indicated included the following components: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 U.S. Foreign U.S. Foreign U.S. Foreign U.S. Foreign (in millions) Service cost $ 4 $ 4 $ 4 $ 4 $ 8 $ 8 $ 7 $ 8 Interest cost 11 95 12 129 23 197 24 251 Expected return on plan assets (17 ) (66 ) (16 ) (96 ) (34 ) (138 ) (32 ) (186 ) Amortization of prior service cost 2 — 1 1 4 — 3 2 Amortization of net loss 5 7 3 9 10 15 6 17 Total pension cost $ 5 $ 40 $ 4 $ 47 $ 11 $ 82 $ 8 $ 92 Total employer contributions for the six months ended June 30, 2015 for the Company’s U.S. and foreign subsidiaries were $26 million and $48 million , respectively. The expected remaining scheduled employer contributions for 2015 are $0 million and $35 million for U.S. and foreign subsidiaries, respectively.

Equity

Equity	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
EQUITY	EQUITY Changes in Equity — The following table provides a reconciliation of the beginning and ending equity attributable to stockholders of The AES Corporation, noncontrolling interests and total equity as of the periods indicated: Six Months Ended June 30, 2015 Six Months Ended June 30, 2014 The AES Corporation Stockholders’ Equity Noncontrolling Interests Total Equity The AES Corporation Stockholders’ Equity Noncontrolling Interests Total Equity (in millions) Balance at the beginning of the period $ 4,272 $ 3,053 $ 7,325 $ 4,330 $ 3,321 $ 7,651 Net income 211 307 518 75 266 341 Total foreign currency translation adjustment, net of income tax (204 ) (140 ) (344 ) (56 ) 38 (18 ) Total change in derivative fair value, net of income tax 30 (1 ) 29 (99 ) (94 ) (193 ) Total pension adjustments, net of income tax 2 7 9 14 17 31 Cumulative effect of a change in accounting principle (5 ) — (5 ) — — — Capital contributions from noncontrolling interests — 97 97 — 113 113 Distributions to noncontrolling interests — (119 ) (119 ) — (215 ) (215 ) Acquisition of business (1) — 16 16 — — — Disposition of businesses — — — — (151 ) (151 ) Acquisition of treasury stock (307 ) — (307 ) (32 ) — (32 ) Issuance and exercise of stock-based compensation benefit plans, net of income tax 17 — 17 16 — 16 Dividends declared on common stock (70 ) — (70 ) (36 ) — (36 ) Sale of subsidiary shares to noncontrolling interests (82 ) — (82 ) — — — Transaction between entities under common control — — — 5 2 7 Acquisition of subsidiary shares from noncontrolling interests — — — (6 ) — (6 ) Balance at the end of the period $ 3,864 $ 3,220 $ 7,084 $ 4,211 $ 3,297 $ 7,508 _____________________________ (1) Fair value of a tax equity partner’s right to preferential returns as a result of the acquisition of Solar Power PR, LLC (Solar Puerto Rico), which was previously accounted for as an equity method investment. Equity Transactions with Noncontrolling Interests IPALCO — On December 14, 2014, the Company executed sale and subscription agreements with CDPQ, whereby in the first quarter of 2015, CDPQ acquired a 15% noncontrolling interest in AES US Investments, Inc., a wholly-owned subsidiary, for $247 million . Prior to these agreements, AES US Investments, Inc. owned 100% of IPALCO. Under the subscription agreement, CDPQ committed to invest an additional $349 million in IPALCO through 2016 in exchange for a 17.65% equity stake, by funding existing growth and environmental projects at Indianapolis Power & Light Company. In April 2015, CDPQ invested $214 million of the $349 million in IPALCO, which resulted in CDPQ’s combined equity interest in IPALCO to be 24.90% . Upon investing the remaining commitment of $135 million , CDPQ's equity interests in IPALCO will total 30% . As a result of these transactions, $82 million in taxes and transaction costs were recognized as a net decrease to equity. The Company also recognized an increase of $377 million to additional paid-in capital and a reduction to retained earnings of $377 million for the excess of the fair value of the shares over their book value. Since the noncontrolling interest is contingently redeemable, the fair value of the consideration received of $461 million is classified in temporary equity as redeemable stock of subsidiaries on the Condensed Consolidated Balance Sheets. No gain or loss was recognized in net income as the sale is not considered to be a sale of in-substance real estate. Any subsequent adjustments to allocate earnings and dividends to CDPQ will be classified as noncontrolling interest within permanent equity and adjustments to the amount in temporary equity will occur only if and when it is probable that the shares will become redeemable. As the Company maintained control after the sale, IPALCO continues to be accounted for as a consolidated subsidiary within the US SBU reportable segment. Jordan — On March 15, 2015, the Company executed an agreement to sell 40% of its interest in a wholly owned subsidiary in Jordan that owns a controlling interest in the 247 MW Jordan IPP4 gas-fired plant for $30 million . The sale is expected to be completed during 2015. Accumulated Other Comprehensive Loss — See below for the changes in AOCL by component, net of tax and noncontrolling interests, for the six months ended June 30, 2015 : Unrealized derivative gains (losses), net Unfunded pension obligations, net Foreign currency translation adjustment, net Total (in millions) Balance at the beginning of the period $ (396 ) $ (295 ) $ (2,595 ) $ (3,286 ) Other comprehensive income (loss) before reclassifications 18 — (204 ) (186 ) Amount reclassified to earnings 12 2 — 14 Other comprehensive income (loss) 30 2 (204 ) (172 ) Cumulative effect of a change in accounting principle — — 13 13 Balance at the end of the period $ (366 ) $ (293 ) $ (2,786 ) $ (3,445 ) Reclassifications out of AOCL for the periods indicated were as follows: Details About Three Months Ended June 30, Six Months Ended June 30, AOCL Components Affected Line Item in the Condensed Consolidated Statements of Operations 2015 2014 2015 2014 Foreign currency translation adjustment, net (in millions) (1) Net loss from disposal and impairments of discontinued businesses — 53 — $ 47 Net income attributable to The AES Corporation $ — $ 53 $ — $ 47 Unrealized derivative gains (losses), net Non-regulated revenue $ 10 $ 6 $ 15 $ 19 Non-regulated cost of sales (5 ) (3 ) (5 ) $ (2 ) Interest expense (15 ) (31 ) (40 ) (63 ) Foreign currency transaction gains (losses) 2 7 8 4 Income from continuing operations before taxes and equity in earnings of affiliates (8 ) (21 ) (22 ) (42 ) Income tax expense 1 10 3 13 Net equity in earnings of affiliates — (2 ) — (3 ) Income from continuing operations (7 ) (13 ) (19 ) (32 ) Income from continuing operations attributable to noncontrolling interests 4 15 7 15 Net income attributable to The AES Corporation $ (3 ) $ 2 $ (12 ) $ (17 ) Amortization of defined benefit pension actuarial loss, net Regulated cost of sales $ (6 ) $ (9 ) $ (14 ) $ (17 ) Non-regulated cost of sales — 1 — — Other income — (2 ) — (2 ) Income from continuing operations before taxes and equity in earnings of affiliates (6 ) (10 ) (14 ) (19 ) Income tax expense 2 (2 ) 5 1 Income from continuing operations (4 ) (12 ) (9 ) (18 ) Net loss from disposal and impairments of discontinued businesses — 2 — 2 Net income (4 ) (10 ) (9 ) (16 ) Income from continuing operations attributable to noncontrolling interests 3 7 7 11 Net income attributable to The AES Corporation $ (1 ) $ (3 ) $ (2 ) $ (5 ) Total reclassifications for the period, net of income tax and noncontrolling interests $ (4 ) $ 52 $ (14 ) $ 25 _____________________________ (1) Amounts in parentheses indicate debits to the Condensed Consolidated Statements of Operations. Common Stock Dividends The Company paid dividends of $0.10 per outstanding share to its common stockholders during each of the first and second quarters of 2015 for dividends declared in December 2014 and April 2015, respectively. For information on dividends declared after the second quarter of 2015 , see Note 20 — Subsequent Events. Secondary Offering and Concurrent Stock Repurchase On May 18, 2015, the Parent Company completed an underwritten secondary public offering (the “Offering”) of 60 million shares of its common stock by the Terrific Investment Corporation (the “Selling Stockholder”), a subsidiary controlled by China Investment Corporation at a price of $13.25 per share. Of the 60 million shares, 40 million were sold to the market and 20 million were reserved to be repurchased by the Parent Company. The Parent Company did not receive any of the proceeds from the Offering and the Selling Stockholder has fully sold its stake in AES common stock. Concurrent with this offering, on May 18, 2015, the Parent Company completed the repurchase of the 20 million shares of its common stock from the Selling Stockholder at a price per share of $13.07 , for an aggregate purchase price of $261 million . Stock Repurchase Program During the three months ended June 30, 2015 , the Parent Company repurchased 20.8 million shares of its common stock (including the 20 million share repurchase in May referenced above) at a total cost of $271 million under the existing stock repurchase program (the “Program”). The cumulative repurchases from the commencement of the Program in July 2010 through June 30, 2015 totaled 129.5 million shares for a total cost of $1.6 billion , at an average price per share of $12.47 (including a nominal amount of commissions). As of June 30, 2015 , $117 million remained available for repurchase under the Program. For information on stock repurchases after the second quarter of 2015, see Note 20 — Subsequent Events.

Segments

Segments	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
SEGMENTS	SEGMENTS The segment reporting structure uses the Company’s management reporting structure as its foundation to reflect how the Company manages the businesses internally and is organized by geographic regions which provide better socio-political-economic understanding of our business. The management reporting structure is organized along six SBUs — led by our Chief Executive Officer (“CEO”). Using the accounting guidance on segment reporting, the Company has determined that it has six reportable segments corresponding to its six SBUs: • US SBU; • Andes SBU; • Brazil SBU; • MCAC SBU; • Europe SBU; and • Asia SBU Corporate and Other — Corporate overhead costs which are not directly associated with the operations of our six reportable segments are included in “Corporate and Other.” Also included are certain intercompany charges such as self-insurance premiums which are fully eliminated in consolidation. The Company uses Adjusted PTC as its primary segment performance measure. Adjusted PTC, a non-GAAP measure, is defined by the Company as pretax income from continuing operations attributable to AES excluding unrealized gains or losses related to derivative transactions, unrealized foreign currency gains or losses, gains or losses due to dispositions and acquisitions of business interests, losses due to impairments and costs due to the early retirement of debt. The Company has concluded that Adjusted PTC best reflects the underlying business performance of the Company and is the most relevant measure considered in the Company’s internal evaluation of the financial performance of its segments. Additionally, given its large number of businesses and complexity, the Company concluded that Adjusted PTC is a more transparent measure that better assists investors in determining which businesses have the greatest impact on the overall Company results. All intra-segment activity has been eliminated with respect to revenue and Adjusted PTC within the segment. Inter-segment activity has been eliminated within the total consolidated results. Information about the Company’s operations by segment for the periods indicated was as follows: Revenue Total Revenue Intersegment External Revenue Three Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 831 $ 893 $ — $ — $ 831 $ 893 Andes SBU 630 724 (2 ) (1 ) 628 723 Brazil SBU 1,315 1,533 — — 1,315 1,533 MCAC SBU 601 692 (1 ) — 600 692 Europe SBU 299 305 (3 ) — 296 305 Asia SBU 187 163 — — 187 163 Corporate and Other 6 5 (5 ) (3 ) 1 2 Total Revenue $ 3,869 $ 4,315 $ (11 ) $ (4 ) $ 3,858 $ 4,311 Revenue Total Revenue Intersegment External Revenue Six Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 1,828 $ 1,894 $ — $ — $ 1,828 $ 1,894 Andes SBU 1,242 1,344 (4 ) (1 ) 1,238 1,343 Brazil SBU 2,645 2,978 — — 2,645 2,978 MCAC SBU 1,199 1,330 (2 ) (1 ) 1,197 1,329 Europe SBU 629 696 (3 ) — 626 696 Asia SBU 306 331 — — 306 331 Corporate and Other 10 7 (8 ) (5 ) 2 2 Total Revenue $ 7,859 $ 8,580 $ (17 ) $ (7 ) $ 7,842 $ 8,573 Adjusted PTC (1) Total Adjusted PTC Intersegment External Adjusted PTC Three Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 56 $ 80 $ 3 $ 3 $ 59 $ 83 Andes SBU 81 104 5 1 86 105 Brazil SBU 41 115 — — 41 115 MCAC SBU 106 95 5 10 111 105 Europe SBU 41 73 (1 ) 3 40 76 Asia SBU 30 23 1 — 31 23 Corporate and Other (104 ) (150 ) (13 ) (17 ) (117 ) (167 ) Total Adjusted PTC $ 251 $ 340 $ — $ — $ 251 $ 340 Reconciliation to Income from Continuing Operations before Taxes and Equity Earnings of Affiliates: Non-GAAP Adjustments: Unrealized derivative gains 2 22 Unrealized foreign currency gains (losses) 3 (7 ) Disposition/acquisition gains (losses) 4 (2 ) Impairment losses (30 ) (99 ) Loss on extinguishment of debt (115 ) (13 ) Pretax contribution 115 241 Add: Income from continuing operations before taxes, attributable to noncontrolling interests 269 197 Less: Net equity in earnings of affiliates — 20 Income from continuing operations before taxes and equity in earnings of affiliates $ 384 $ 418 Adjusted PTC (1) Total Adjusted PTC Intersegment External Adjusted PTC Six Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 162 $ 155 $ 6 $ 6 $ 168 $ 161 Andes SBU 172 157 8 4 180 161 Brazil SBU 62 184 1 1 63 185 MCAC SBU 156 160 9 14 165 174 Europe SBU 126 188 2 6 128 194 Asia SBU 42 31 1 1 43 32 Corporate and Other (217 ) (292 ) (27 ) (32 ) (244 ) (324 ) Total Adjusted PTC $ 503 $ 583 $ — $ — $ 503 $ 583 Reconciliation to Income from Continuing Operations before Taxes and Equity Earnings of Affiliates: Non-GAAP Adjustments: Unrealized derivative gains 17 32 Unrealized foreign currency losses (44 ) (33 ) Disposition/acquisition gains (losses) 9 (1 ) Impairment losses (36 ) (265 ) Loss on extinguishment of debt (142 ) (147 ) Pretax contribution 307 169 Add: Income from continuing operations before taxes, attributable to noncontrolling interests 427 412 Less: Net equity in earnings of affiliates 15 45 Income from continuing operations before taxes and equity in earnings of affiliates $ 719 $ 536 _____________________________ (1) Adjusted PTC in each segment before intersegment eliminations includes the effect of intercompany transactions with other segments except for interest, charges for certain management fees and the write-off of intercompany balances. Total Assets June 30, 2015 December 31, 2014 (in millions) US SBU $ 10,089 $ 10,062 Andes SBU 8,349 7,888 Brazil SBU 7,790 8,439 MCAC SBU 5,031 4,948 Europe SBU 3,497 3,525 Asia SBU 3,127 2,972 Assets of held-for-sale businesses 158 — Corporate and Other & eliminations 543 1,132 Total Assets $ 38,584 $ 38,966

Other Income and Expense

Other Income and Expense	6 Months Ended
	Jun. 30, 2015
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	OTHER INCOME AND EXPENSE Other Income — Other income includes gains on asset sales and liability extinguishments, favorable judgments on contingencies, and other income from miscellaneous transactions. The components of other income are summarized as follows: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Contingency reversal (Kazakhstan) $ — $ 18 $ — $ 18 Gain on sale of assets 6 8 11 10 Allowance for Funds Used During Construction (IPL) 3 1 7 2 Other 6 6 13 15 Total other income $ 15 $ 33 $ 31 $ 45 Other Expense — Other expense generally includes losses on asset sales and dispositions, losses on legal contingencies and losses from other miscellaneous transactions. The components of other expense are summarized as follows: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Loss on sale and disposal of assets $ 8 $ 12 $ 23 $ 19 Legal settlement 5 — 8 — Other 1 5 3 6 Total other expense $ 14 $ 17 $ 34 $ 25

Goodwill Impairment

Goodwill Impairment	6 Months Ended
	Jun. 30, 2015
Goodwill Impairment [Abstract]
GOODWILL IMPAIRMENT	GOODWILL IMPAIRMENT There were no goodwill impairments for the three and six months ended June 30, 2015 or for the three months ended June 30, 2014. DPLER — During the first quarter of 2014, the Company performed an interim impairment test on the $136 million in goodwill at its DPLER reporting unit, a competitive retail marketer selling retail electricity to customers in Ohio and Illinois. The DPLER reporting unit was identified as being “at risk” during the fourth quarter of 2013. The impairment indicators arose based on market information available regarding actual and proposed sales of competitive retail marketers, which indicated a significant decline in valuations during the first quarter of 2014. In Step 1 of the interim impairment test, the fair value of the reporting unit was determined to be less than its carrying amount under both the market approach and the income approach using a discounted cash flow valuation model. The significant assumptions included commodity price curves, estimated electricity to be demanded by its customers, changes in its customer base through attrition and expansion, discount rates, the assumed tax structure and the level of working capital required to operate the business. In Step 2 of the interim impairment test, the goodwill was determined to have an implied fair value of zero after the hypothetical purchase price allocation; thus the Company accordingly recognized a full impairment of the $136 million in goodwill at the DPLER reporting unit during the three months ended March 31, 2014. DPLER is reported in the US SBU reportable segment. Buffalo Gap — During the first quarter of 2014, the Company recognized an $18 million impairment of its goodwill at its Buffalo Gap reporting unit, which is composed of three wind projects in Texas with an aggregate generation capacity of 524 MW, and is reported in the US SBU reportable segment.

Asset Impairment Expense

Asset Impairment Expense	6 Months Ended
	Jun. 30, 2015
Impairment or Disposal of Tangible Assets Disclosure [Abstract]
ASSET IMPAIRMENT EXPENSE	ASSET IMPAIRMENT EXPENSE Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) DP&L (East Bend) $ — $ — $ — $ 12 Ebute — 52 — 52 UK Wind 37 11 37 11 Other — — 8 $ — Total asset impairment expense $ 37 $ 63 $ 45 $ 75 UK Wind (Development Projects) — During the second quarter of 2015, the Company decided to no longer pursue two wind projects in the United Kingdom based on recent regulatory clarifications specific to these projects, resulting in a full impairment. Impairment indicators were also identified at four other wind projects based on their current development status and a reassessment of the likelihood that each project would be pursued given aviation concerns, regulatory changes, economic considerations and other factors. The Company determined that the carrying amounts of each of these asset groups, which totaled $38 million , were not recoverable. In aggregate, the asset groups were determined to have a fair value of $1 million using the market approach and, as a result, the Company recognized asset impairment expense of $37 million . The UK Wind projects are reported in the Europe SBU reportable segment. DP&L (East Bend) — During the first quarter of 2014, the Company tested the recoverability of long-lived assets at East Bend, a 186 MW coal-fired plant in Ohio jointly owned by DP&L (a wholly owned subsidiary of AES). Indications during that quarter that the fair value of the asset group was less than its carrying amount were determined to be impairment indicators given how narrowly these long-lived assets had passed the recoverability test during the fourth quarter of 2013. During the first quarter of 2014, the Company determined that the carrying amount of the asset group was not recoverable. The East Bend asset group was determined to have a fair value of $2 million using the market approach. As a result, the Company recognized asset impairment expense of $12 million . The Company’s interest in East Bend was sold in December 2014. Prior to its sale, East Bend was reported in the US SBU reportable segment. Ebute — During the second quarter of 2014, the Company identified impairment indicators at Ebute in Nigeria, resulting from the continued lack of gas supply and the increased likelihood of selling the asset group before the end of its useful life. The Company determined that the carrying amount of the asset group was not recoverable. The Ebute asset group was determined to have a fair value of $47 million using primarily the market approach based on indications about the proceeds that could be received from a future sale, the amount of cash flows estimated to be received until that sale under its power purchase agreement and the amount of cash on hand. As a result, the Company recognized an asset impairment expense of $52 million . In November 2014, the Company completed the sale of its interest in Ebute. Prior to its sale, Ebute was reported in the Europe SBU reportable segment. UK Wind (Newfield) — During the second quarter of 2014, the Company tested the recoverability of long-lived assets at its Newfield wind development project in the United Kingdom after the UK government refused to grant a permit necessary for the project to continue. The Company determined that the carrying amount of the asset group was not recoverable. The Newfield asset group was determined to have no fair value using the income approach. As a result, the Company recognized an asset impairment expense of $11 million . UK Wind (Newfield) is reported in the Europe SBU reportable segment.

Other Non-Operating Expense

Other Non-Operating Expense	6 Months Ended
	Jun. 30, 2015
Other Expense, Nonoperating [Abstract]
Other Nonoperating Income and Expense [Text Block]	There was no other non-operating expense for the three and six months ended June 30, 2015. Silver Ridge — On June 16, 2014, the Company executed an agreement to sell its 50% ownership interest in Silver Ridge Power, LLC (“SRP”) for a purchase price of $165 million , subject to certain purchase price adjustments, and excluding the Company’s indirect ownership interests in SRP’s solar generation businesses in Italy, Puerto Rico and Spain. SRP is a solar power joint venture of AES and Riverstone Holdings LLC with each partner having a 50% ownership interest in SRP. As a result of the Company's continuing interests and involvement in SRP's solar generation businesses in Italy, Puerto Rico, and Spain, the transaction will not result in a sale for accounting purposes until all continuing involvement by AES has been eliminated. The buyer also has an option to purchase the Company's indirect 50% interest in the Italy solar generation business for additional consideration of $42 million by August 2015. During the second quarter of 2014, the Company determined that there was a decline in the fair value of its equity method investment in SRP that was other than temporary based on indications about the fair value of the projects in Italy and Spain that resulted from actual and proposed changes to their tariffs. As a result, the Company recognized a pretax impairment loss of $44 million in other non-operating expense in the second quarter of 2014. The sale of the 50% ownership interest in SRP closed on July 2, 2014 for $179 million , including purchase price adjustments.

Discontinued Operations and Hel

Discontinued Operations and Held-For-Sale Businesses	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
DISCONTINUED OPERATIONS AND HELD-FOR-SALE BUSINESSES	DISCONTINUED OPERATIONS AND HELD-FOR-SALE BUSINESSES As discussed in Note 1 — Financial Statement Presentation , effective July 1, 2014, the Company prospectively adopted ASU No. 2014-08. There have been no businesses classified as a discontinued operation subsequent to the adoption of the new accounting standard. The following table summarizes the revenue, income from operations, income tax expense, impairment and loss on disposal of all businesses classified as a discontinued operation prior to the adoption of ASU No. 2014-08 for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Revenue $ — $ 104 $ — $ 233 Income from operations of discontinued businesses, before income tax $ — $ 15 $ — $ 49 Income tax expense — (8 ) — (22 ) Income from operations of discontinued businesses, after income tax $ — $ 7 $ — $ 27 Net loss from disposal & impairments of discontinued businesses, after income tax $ — $ (13 ) $ — $ (56 ) U.S. wind project s — In November 2013, the Company executed an agreement for the sale of its 100% membership interests in three wind projects with an aggregate generation capacity of 234 MW: Condon in California, Lake Benton I in Minnesota and Storm Lake II in Iowa. The sale transaction closed on January 30, 2014 and net proceeds of $27 million were received. These wind projects were previously reported in the US SBU reportable segment. Under the terms of the sale agreement, the buyer was provided an option to purchase the Company's 100% interest in Armenia Mountain, a 101 MW wind project in Pennsylvania, at a fixed price of $75 million . Approximately $3 million of the $27 million net proceeds was deferred and allocated to this option. The buyer exercised the option on March 31, 2015 and the sale was completed on July 1, 2015. Accordingly, Armenia Mountain has been classified as held-for-sale as of June 30, 2015, but does not meet the criteria to be reported as a discontinued operation. Armenia Mountain’s results are therefore reflected within continuing operations in the Condensed Consolidated Statements of Operations. Armenia Mountain’s pretax income attributable to AES was $2 million and $6 million , respectively, for the three and six months ended June 30, 2015, and $2 million and $5 million , respectively, for the three and six months ended June 30, 2014. Armenia Mountain is reported in the US SBU reportable segment. Saurashtra — In October 2013, the Company executed a sale agreement for the sale of its wholly owned subsidiary AES Saurashtra Private Ltd, a 39 MW wind project in India. The sale transaction closed on February 24, 2014 and net proceeds of $8 million were received. Saurashtra was previously reported in the Asia SBU reportable segment. Cameroon — In September 2013, a subsidiary of the Company executed agreements for the sale of AES White Cliffs B.V. (owner of 56% of AES SONEL S.A), AES Kribi Holdings B.V. (owner of 56% of Kribi Power Development Company S.A.) and AES Dibamba Holdings B.V. (owner of 56% of Dibamba Power Development Company S.A.). In June 2014, the Company sold its entire equity interest in all three businesses in Cameroon. Net proceeds from the sale transaction were $200 million with $156 million received and non-contingent consideration of $44 million to be received in 2016. The carrying amount of $44 million , which approximates fair value, and is secured by a $40 million letter of credit from a well-capitalized, multinational bank. Between meeting the held-for-sale criteria in September 2013 through the first quarter of 2014, the Company recognized impairment charges totaling $101 million , representing the difference between the aggregate carrying amount of $435 million and fair value less costs to sell of $334 million . During the second quarter of 2014, the Company recognized an additional loss on sale of $7 million . These businesses were previously reported in the Europe SBU reportable segment.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Acquisitions	Main Street Power — On February 18, 2015, the Company completed the acquisition of the 100% of the common stock of Main Street Power Company, Inc. for approximately $25 million pursuant to the terms and condition of a definitive agreement dated January 24, 2015. The purchase consideration was comprised of cash of $20 million and the fair value of earn-out payments of $5 million . At June 30, 2015, the assets acquired and liabilities assumed in the acquisition were recorded at provisional amounts based on the preliminary purchase price allocation. The Company is in the process of obtaining additional information to measure all assets acquired and liabilities assumed in the acquisition within the measurement period, which could be up to one year from the date of acquisition. The preliminary purchase price allocation has resulted in the recognition of $14 million of goodwill. Subsequent changes to the fair value of earn-out payments will be reflected in earnings.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Basic and diluted earnings per share are based on the weighted average number of shares of common stock and potential common stock outstanding during the period. Potential common stock, for purposes of determining diluted earnings per share, includes the effects of dilutive RSUs, stock options and convertible securities. The effect of such potential common stock is computed using the treasury stock method or the if-converted method, as applicable. The following tables present a reconciliation of the numerator and denominator of the basic and diluted earnings per share computation for income from continuing operations for the periods indicated. In the table below, income represents the numerator and weighted average shares represent the denominator: Three Months Ended June 30, 2015 2014 Income Shares $ per Share Income Shares $ per Share (in millions except per share data) BASIC EARNINGS PER SHARE Income from continuing operations attributable to The AES Corporation common stockholders $ 69 693 $ 0.10 $ 142 725 $ 0.20 EFFECT OF DILUTIVE SECURITIES Stock options — — — — 1 — Restricted stock units — 2 — — 2 — DILUTED EARNINGS PER SHARE $ 69 695 $ 0.10 $ 142 728 $ 0.20 Six Months Ended June 30, 2015 2014 Income Shares $ per Share Income Shares $ per Share (in millions except per share data) BASIC EARNINGS PER SHARE Income from continuing operations attributable to The AES Corporation common stockholders $ 211 698 $ 0.30 $ 95 725 $ 0.13 EFFECT OF DILUTIVE SECURITIES Stock options — 1 — — 1 — Restricted stock units — 2 — — 2 — DILUTED EARNINGS PER SHARE $ 211 701 $ 0.30 $ 95 728 $ 0.13 For the three and six months ended June 30, the calculation of diluted earnings per share excluded 6 million and 7 million outstanding stock awards for 2015 and 2014, respectively, that could potentially dilute basic earnings per share in the future. Additionally, for the three and six months ended June 30, 2015 and 2014 , all 15 million shares of potential common stock associated with convertible debentures were omitted from the earnings per share calculation. These were not included because the impact would have been anti-dilutive.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS Armenia Mountain Wind — On July 1, 2015 , the Company completed the sale of its interest in Armenia Mountain Wind and received net proceeds of $70 million . The Company expects to recognize a gain on this transaction in the third quarter of 2015. See Note 17 — Discontinued Operations and Held-for-Sale Businesses for additional information . Stock Repurchase Program — Subsequent to June 30, 2015 , the Parent Company repurchased an additional 2.2 million shares at a cost of $29 million , bringing the cumulative repurchases total from July 2010 through August 7, 2015 to 131.7 million shares for a total cost of $1.6 billion , at an average price per share of $12.48 (including a nominal amount of commissions). As of August 7, 2015, $88 million remains available under the Program. See Note 11 — Equity for additional information . Dividends — On July 10, 2015, the Parent Company’s Board of Directors declared a dividend of $0.10 per outstanding common share payable on August 17, 2015 to the shareholders of record at the close of business on August 3, 2015. Solar Spain — On July 29, 2015 , the Company signed an agreement to sell all of its 50% interest in Solar Spain, an equity method investment with 31 MW peak capacity in operations, for approximately $32 million , subject to customary closing conditions.

Financial Statement Presentat29

Financial Statement Presentation (Policies)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation	Consolidation In this Quarterly Report the terms “AES,” “the Company,” “us” or “we” refer to the consolidated entity including its subsidiaries and affiliates. The terms “The AES Corporation,” “the Parent” or “the Parent Company” refer only to the publicly held holding company, The AES Corporation, excluding its subsidiaries and affiliates. Furthermore, VIEs in which the Company has a variable interest have been consolidated where the Company is the primary beneficiary. Investments in which the Company has the ability to exercise significant influence, but not control, are accounted for using the equity method of accounting. All intercompany transactions and balances have been eliminated in consolidation.
New Accounting Pronouncements Adopted	New Accounting Pronouncements Adopted ASU No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity Effective July 1, 2014, the Company prospectively adopted ASU No. 2014-08, which significantly changed the previous accounting guidance on discontinued operations. Under ASU No. 2014-08, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results will be reported as discontinued operations. Other changes were as follows: equity method investments that were previously scoped-out of the discontinued operations accounting guidance are now included in the scope; a business can meet the criteria to be classified as held-for-sale upon acquisition and can be reported in discontinued operations; and components where an entity retains significant continuing involvement or where operations and cash flows will not be eliminated from ongoing operations as a result of a disposal transaction can meet the definition of discontinued operations. Additionally, where summarized amounts are presented on the face of the financial statements, reconciliations of those amounts to major classes of line items are also required. ASU No. 2014-08 requires additional disclosures for individually material components that do not meet the definition of discontinued operations. Under the previous accounting guidance, the UK Wind and Ebute disposals in the third and fourth quarters of 2014, respectively, would have met the discontinued operations criteria and would have been reclassified accordingly. Additionally, Armenia Mountain, which met the held-for-sale criteria in the first quarter of 2015, would have met the discontinued operations criteria under the previous accounting guidance and would have been reclassified accordingly. ASU No. 2014-05, Service Concession Arrangements (Topic 853) Effective January 1, 2015, the Company adopted ASU No. 2014-05, which states that certain service concession arrangements with public-sector entity grantors are not in scope of ASC 840, Leases and that entities should not recognize the related infrastructure as property, plant and equipment, but should apply other GAAP. The Company has a small number of entities that fall within the scope of this guidance, with the Company’s Mong Duong generation facility in Vietnam being the most significant. Mong Duong is a build, operate and transfer agreement with the Vietnam government. Management concluded there were two deliverables included within the arrangement, as well as a financing element. Due to the contingent nature of the revenue stream, no amounts of revenue could be recognized during the build phase of the contract. All amounts billed during the operate phase are recognized as revenue when billed, with amounts allocated between the financing element and build and operate deliverables. The financing element is recognized as interest income using the effective interest method as payments for construction of the plant are received over the life of the contract. Costs are expensed as incurred. As the related infrastructure is no longer considered property, plant and equipment, there are no longer any capitalizable expenses beyond those related to the initial build, and accordingly these will be expensed as incurred. All cash flows, excluding those related to the debt incurred by AES for these arrangements will be reflected in cash flows from operating activities on the Company’s Condensed Consolidated Statements of Cash Flows prospectively. The guidance was applied on a modified retrospective basis to service concession arrangements in existence at January 1, 2015. Upon adoption of this standard, the impact to the Company’s Condensed Consolidated Balance Sheet as of January 1, 2015 resulted in a reclassification of $1.5 billion from property, plant and equipment to service concession assets, as well as a cumulative adjustment to retained earnings and cumulative translation adjustment of $(18) million , net of tax, and $13 million , respectively. Accounting Pronouncements Issued But Not Yet Effective The following accounting standards have been issued but are not yet effective for, nor have been adopted by AES: ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory In July 2015, the FASB issued ASU No. 2015-11, which simplifies the subsequent measurement of inventory. It replaces the current lower of cost or market test with a lower of cost or net realizable value test. The standard is effective for public entities for annual reporting periods beginning after December 15, 2016, and interim periods therein. Early adoption is permitted. The new guidance must be applied prospectively. The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements. ASU No. 2015-05, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement In April 2015, the FASB issued ASU No. 2015-05, which clarifies how customers in cloud computing arrangements should determine whether the arrangement includes a software license and eliminates the existing requirement for customers to account for software licenses they acquired by analogizing to the accounting guidance on leases. The standard is effective for annual reporting periods beginning after December 15, 2015 and interim periods therein. Early adoption is permitted. The standard permits the use of a prospective or retrospective approach. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the standard on its consolidated financial statements. ASU No. 2015-03, Interest — Imputation of Interest (Subtopic 835-30) In April 2015, the FASB issued ASU No. 2015-03, which simplifies the presentation of debt issuance costs by requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update. The standard is effective for annual reporting periods beginning after December 15, 2015 and interim periods therein, and requires the use of the full retrospective approach. Early adoption is permitted for financial statements that have not been previously issued. As of June 30, 2015 , the Company had approximately $385 million in deferred financing costs classified in other noncurrent assets that would be reclassified to reduce the related debt liabilities upon adoption of ASU No. 2015-03. ASU No. 2015-02, Consolidation — Amendments to the Consolidation Analysis (Topic 810) In February 2015, the FASB issued ASU 2015-02, which makes targeted amendments to the current consolidation guidance and ends the deferral granted to investment companies from applying the VIE guidance. The standard amends the evaluation of whether (1) fees paid to a decision-maker or service providers represent a variable interest, (2) a limited partnership or similar entity has the characteristics of a VIE and (3) a reporting entity is the primary beneficiary of a VIE. The standard is effective for annual periods beginning after December 15, 2015 and interim periods therein. Early adoption is permitted. The Company is currently assessing the impact of the standard on its consolidated financial statements. ASU No. 2014-12, Compensation — Stock Compensation (Topic 718) In June 2014, the FASB issued ASU No. 2014-12, which is intended to resolve the diverse accounting treatment in practice with compensation awards. The objective of the new standard is to clarify the treatment of accounting for performance targets that affect award vesting. The standard is effective for annual reporting periods beginning after December 15, 2015 and interim periods therein. Early adoption is permitted. The standard permits the use of either a prospective or modified retrospective approach. The Company has not yet selected a transition method and is currently evaluating the impact of the standard on its financial position and results of operations. ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In May 2014, the FASB issued ASU No. 2014-09 which clarifies principles for recognizing revenue and will result in a common revenue standard for U.S. GAAP and International Financial Reporting Standards. The objective of the new standard is to provide a single and comprehensive revenue recognition model for all contracts with customers to improve comparability. The revenue standard contains principles that an entity will apply to determine the measurement of revenue and timing of when it is recognized. The standard requires an entity to recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. In July 2015, the FASB decided to defer the effective date by one year, resulting in the new revenue standard being effective for annual reporting periods beginning after December 15, 2017 and interim periods therein. Early adoption is now permitted only as of the original effective date for public entities (that is, no earlier than 2017 for calendar year-end entities). The standard permits the use of either a full retrospective or modified retrospective approach. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the standard on its consolidated financial statements.
Commitments and Contingencies	Litigation — The Company is involved in certain claims, suits and legal proceedings in the normal course of business. The Company accrues for litigation and claims when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. The Company has evaluated claims in accordance with the accounting guidance for contingencies that it deems both probable and reasonably estimable and, accordingly, has recognized aggregate liabilities for all claims of approximately $199 million as of June 30, 2015 and December 31, 2014 . These amounts are reported on the Condensed Consolidated Balance Sheets within Accrued and other liabilities and Other noncurrent liabilities . A significant portion of these accrued liabilities relate to labor and employment, non-income tax and customer disputes in international jurisdictions, principally Brazil where there are a number of labor and employment lawsuits. The complaints generally seek unspecified monetary damages, injunctive relief, or other relief. The subsidiaries have denied any liability and intend to vigorously defend themselves in all of these proceedings. There can be no assurance that these accrued liabilities will be adequate to cover all existing and future claims or that we will have the liquidity to pay such claims as they arise.
Segment Reporting	The segment reporting structure uses the Company’s management reporting structure as its foundation to reflect how the Company manages the businesses internally and is organized by geographic regions which provide better socio-political-economic understanding of our business. The management reporting structure is organized along six SBUs — led by our Chief Executive Officer (“CEO”). Using the accounting guidance on segment reporting, the Company has determined that it has six reportable segments corresponding to its six SBUs: • US SBU; • Andes SBU; • Brazil SBU; • MCAC SBU; • Europe SBU; and • Asia SBU Corporate and Other — Corporate overhead costs which are not directly associated with the operations of our six reportable segments are included in “Corporate and Other.” Also included are certain intercompany charges such as self-insurance premiums which are fully eliminated in consolidation. The Company uses Adjusted PTC as its primary segment performance measure. Adjusted PTC, a non-GAAP measure, is defined by the Company as pretax income from continuing operations attributable to AES excluding unrealized gains or losses related to derivative transactions, unrealized foreign currency gains or losses, gains or losses due to dispositions and acquisitions of business interests, losses due to impairments and costs due to the early retirement of debt. The Company has concluded that Adjusted PTC best reflects the underlying business performance of the Company and is the most relevant measure considered in the Company’s internal evaluation of the financial performance of its segments. Additionally, given its large number of businesses and complexity, the Company concluded that Adjusted PTC is a more transparent measure that better assists investors in determining which businesses have the greatest impact on the overall Company results. All intra-segment activity has been eliminated with respect to revenue and Adjusted PTC within the segment. Inter-segment activity has been eliminated within the total consolidated results.
Earnings Per Share	Basic and diluted earnings per share are based on the weighted average number of shares of common stock and potential common stock outstanding during the period. Potential common stock, for purposes of determining diluted earnings per share, includes the effects of dilutive RSUs, stock options and convertible securities. The effect of such potential common stock is computed using the treasury stock method or the if-converted method, as applicable.

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Inventory Balance By Type	The following table summarizes the Company’s inventory balances as of the periods indicated: June 30, 2015 December 31, 2014 (in millions) Fuel and other raw materials $ 391 $ 357 Spare parts and supplies 343 345 Total $ 734 $ 702

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value hierarchy for recurring measurements table	The following table sets forth, by level within the fair value hierarchy, the Company’s financial assets and liabilities that were measured at fair value on a recurring basis as of the periods indicated: June 30, 2015 December 31, 2014 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (in millions) Assets AVAILABLE FOR SALE: (1) Debt securities: Unsecured debentures $ — $ 332 $ — $ 332 $ — $ 501 $ — $ 501 Certificates of deposit — 79 — 79 — 151 — 151 Government debt securities — 33 — 33 — 57 — 57 Subtotal — 444 — 444 — 709 — 709 Equity securities: Mutual funds — 18 — 18 — 25 — 25 Subtotal — 18 — 18 — 25 — 25 Total available for sale — 462 — 462 — 734 — 734 TRADING: Equity securities: Mutual funds 15 — — 15 15 — — 15 Total trading 15 — — 15 15 — — 15 DERIVATIVES: Foreign currency derivatives — 14 237 251 — 18 218 236 Commodity derivatives — 44 18 62 — 37 7 44 Total derivatives — 58 255 313 — 55 225 280 TOTAL ASSETS $ 15 $ 520 $ 255 $ 790 $ 15 $ 789 $ 225 $ 1,029 Liabilities DERIVATIVES: Interest rate derivatives $ — $ 178 $ 191 $ 369 $ — $ 206 $ 210 $ 416 Cross-currency derivatives — 32 — 32 — 29 — 29 Foreign currency derivatives — 38 15 53 — 43 9 52 Commodity derivatives — 23 1 24 — 16 1 17 Total derivatives — 271 207 478 — 294 220 514 TOTAL LIABILITIES $ — $ 271 $ 207 $ 478 $ — $ 294 $ 220 $ 514 _____________________________ (1) Amortized cost approximated fair value at June 30, 2015 and December 31, 2014 .
Fair Value, Net Derivative Assets (Liabilities) measured on a recurring basis, Unobservable Input Reconciliation Table	The following tables present a reconciliation of net derivative assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2015 and 2014 (presented net by type of derivative). Transfers between Level 3 and Level 2 are determined as of the end of the reporting period and principally result from changes in the significance of unobservable inputs used to calculate the credit valuation adjustment. Three Months Ended June 30, 2015 Interest Rate Foreign Currency Commodity Cross Currency Total (in millions) Balance at the beginning of the period $ (302 ) $ 223 $ 4 $ (33 ) $ (108 ) Total gains (losses) (realized and unrealized): Included in earnings — 7 — — 7 Included in other comprehensive income — derivative activity 57 — — — 57 Included in other comprehensive income — foreign currency translation activity (4 ) (6 ) — — (10 ) Included in regulatory (assets) liabilities — — 8 — 8 Settlements 5 (2 ) 5 1 9 Transfers of (assets) liabilities out of Level 3 53 — — 32 85 Balance at the end of the period $ (191 ) $ 222 $ 17 $ — $ 48 Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ — $ 5 $ (1 ) $ — $ 4 Three Months Ended June 30, 2014 Interest Rate Foreign Currency Commodity Total (in millions) Balance at the beginning of the period $ (87 ) $ 101 $ — $ 14 Total gains (losses) (realized and unrealized): Included in earnings — 10 3 13 Included in other comprehensive income — derivative activity (30 ) — — (30 ) Included in other comprehensive income — foreign currency translation activity — (2 ) — (2 ) Included in regulatory (assets) liabilities — — 15 15 Settlements 3 (2 ) (2 ) (1 ) Transfers of assets (liabilities) into Level 3 (69 ) — — (69 ) Balance at the end of the period $ (183 ) $ 107 $ 16 $ (60 ) Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ — $ 9 $ — $ 9 Six Months Ended June 30, 2015 Interest Rate Foreign Currency Commodity Total (in millions) Balance at the beginning of the period $ (210 ) $ 209 $ 6 $ 5 Total gains (losses) (realized and unrealized): Included in earnings — 30 2 32 Included in other comprehensive income — derivative activity 3 — — 3 Included in other comprehensive income — foreign currency translation activity 7 (13 ) — (6 ) Included in regulatory (assets) liabilities — — 8 8 Settlements 9 (4 ) 1 6 Balance at the end of the period $ (191 ) $ 222 $ 17 $ 48 Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ — $ 26 $ 2 $ 28 Six Months Ended June 30, 2014 Interest Rate Foreign Currency Commodity Total (in millions) Balance at the beginning of the period $ (101 ) $ 93 $ 4 $ (4 ) Total gains (losses) (realized and unrealized): Included in earnings 1 37 1 39 Included in other comprehensive income — derivative activity (99 ) (1 ) — (100 ) Included in other comprehensive income — foreign currency translation activity — (20 ) — (20 ) Included in regulatory (assets) liabilities — — 12 12 Settlements 16 (3 ) (1 ) 12 Transfers of (assets) liabilities out of Level 3 — 1 — 1 Balance at the end of the period $ (183 ) $ 107 $ 16 $ (60 ) Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities held at the end of the period $ 1 $ 34 $ — $ 35
Derivative Assets, Significant unobservable inputs	The table below summarizes the significant unobservable inputs used for Level 3 derivative assets (liabilities) as of June 30, 2015 : Type of Derivative Fair Value Unobservable Input Amount or Range (Weighted Avg) (in millions) Interest rate $ (191 ) Subsidiaries’ credit spreads 3.75% — 7.34% (5.17%) Foreign currency: Derivative — Argentine Peso 220 Argentine Peso to USD currency exchange rate after one year 13.71 — 36.10 (24.25) Embedded derivative — Euro 2 Subsidiaries’ credit spreads 4.84% — 7.34% (6.09%) Commodity: Other 17 Total $ 48 The following table summarizes the significant unobservable inputs used in the Level 3 measurement of long-lived assets during the six months ended June 30, 2015 : Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (in millions) Equity method investment: Solar Spain $ 29 Discounted cash flow Annual revenue growth -3% to 0% (0%) Annual pretax operating margin -13% to 56% (24%) Cost of equity 12 %
Fair value hierarchy for nonrecurring measurements table	The following table summarizes major categories of assets and liabilities measured at fair value on a nonrecurring basis during the period indicated and their level within the fair value hierarchy: Six Months Ended June 30, 2015 Carrying Amount (1) Fair Value (5) Pretax Loss Level 1 Level 2 Level 3 (in millions) Assets Equity method investment: Solar Spain $ 29 $ — $ — $ 29 $ — Long-lived assets held and used: (2) UK Wind (Development Projects) 38 — 1 — 37 Other 29 — 21 — 8 Six Months Ended June 30, 2014 Carrying Amount (1) Fair Value (5) Pretax Loss Level 1 Level 2 Level 3 (in millions) Assets Long-lived assets held and used: (2) DPL (East Bend) $ 14 $ — $ 2 $ — $ 12 Ebute 99 — — 47 52 UK Wind (Newfield) 11 — — — 11 Discontinued operations and held-for-sale businesses: (3) Cameroon 372 — 334 — 38 Equity method investments Silver Ridge Power 317 — — 273 44 Goodwill: (4) DPLER 136 — — — 136 Buffalo Gap 28 — — 10 18 _____________________________ (1) Represents the carrying value at the date of measurement, before fair value adjustment. (2) See Note 15 —Asset Impairment Expense for further information. (3) See Note 17 —Discontinued Operations and Held-For-Sale Businesses for further information. Fair value of long-lived assets held-for-sale excludes costs to sell. (4) See Note 14 —Goodwill Impairment for further information.
Financial instruments not measured at fair value in the condensed consolidated balance sheets	The following table sets forth the carrying amount, fair value and fair value hierarchy of the Company’s financial assets and liabilities that are not measured at fair value in the Condensed Consolidated Balance Sheets as of June 30, 2015 and December 31, 2014 , but for which fair value is disclosed. Carrying Amount Fair Value Total Level 1 Level 2 Level 3 (in millions) June 30, 2015 Assets Accounts receivable — noncurrent (1) $ 260 $ 247 $ — $ — $ 247 Liabilities Non-recourse debt 15,749 16,101 — 12,644 3,457 Recourse debt 5,014 5,150 — 5,150 — December 31, 2014 Assets Accounts receivable — noncurrent (1) $ 301 $ 290 $ — $ — $ 290 Liabilities Non-recourse debt 15,600 16,008 — 12,538 3,470 Recourse debt 5,258 5,552 — 5,552 — _____________________________ (1) These accounts receivable principally relate to amounts due from CAMMESA, and are included in Noncurrent assets—Other in the accompanying Condensed Consolidated Balance Sheets. The fair value and carrying amount of these receivables exclude VAT of $31 million and $36 million at June 30, 2015 and December 31, 2014 , respectively.

Investments In Marketable Sec32

Investments In Marketable Securities (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Pre-Tax Gains And Losses On Available For Sale Securities	The following table summarizes the gross proceeds from sale of AFS securities for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Gross proceeds from sales of AFS securities $ 1,395 $ 1,158 $ 2,481 $ 2,218

Derivative Instruments and He33

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate And Cross Currency Derivatives By Type Table	The following three tables set forth, by type of derivative, the Company’s outstanding notional under its derivatives and the weighted average remaining term as of June 30, 2015 regardless of whether the derivative instruments are in qualifying cash flow hedging relationships: Current Maximum Interest Rate and Cross-Currency (1) Derivative Notional Derivative Notional Translated to USD Derivative Notional Derivative Notional Translated to USD Weighted Average Remaining Term % of Debt Currently Hedged by Index (2) (in millions) (in years) Interest Rate Derivatives: LIBOR (U.S. Dollar) 2,689 $ 2,689 3,061 $ 3,061 11 55 % EURIBOR (Euro) 506 564 506 564 7 75 % Cross-Currency Swaps: Chilean Unidad de Fomento 4 172 4 172 13 82 % _____________________________ (1) The Company’s interest rate derivative instruments primarily include accreting and amortizing notionals. The maximum derivative notional represents the largest notional at any point between June 30, 2015 and the maturity of the derivative instrument, which includes forward-starting derivative instruments. The interest rate and cross-currency derivatives range in maturity through 2033 and 2028 , respectively. (2) The percentage of variable-rate debt currently hedged is based on the related index and excludes forecasted issuances of debt and variable-rate debt tied to other indices where the Company has no interest rate derivatives.
Foreign Currency Derivatives By Type Table	Foreign Currency Derivatives Notional (1) Notional Translated to USD Weighted Average Remaining Term (2) (in millions) (in years) Foreign Currency Options and Forwards: Chilean Unidad de Fomento 8 $ 311 <1 Chilean Peso 80,373 126 <1 Brazilian Real 103 33 <1 Euro 107 119 <1 Colombian Peso 145,874 56 <1 Argentine Peso 2,032 224 10 British Pound 16 24 <1 Philippine Peso 751 17 <1 Embedded Foreign Currency Derivatives: Kazakhstani Tenge 3,761 20 1 _____________________________ (1) Represents contractual notionals. The notionals for options have not been probability adjusted, which generally would decrease them. (2) Represents the remaining tenor of our foreign currency derivatives weighted by the corresponding notional. These options and forwards and these embedded derivatives range in maturity through 2025 and 2017 , respectively.
Commodity Derivatives By Type Table	Commodity Derivatives Notional Weighted-Average Remaining Term (1) (in millions) (in years) Power (MWh) 9 2 Coal (Metric tons) 1 2 _____________________________ (1) Represents the remaining tenor of our commodity derivatives weighted by the corresponding volume. These derivatives range in maturity through 2017 .
Derivative Assets Liabilities At Fair Value Net By Balance Sheet Classification And Type Table	The following tables present the fair values of the Company’s derivative instruments as of June 30, 2015 and December 31, 2014 , first by whether they are designated hedging instruments, then by whether they are current or noncurrent, to the extent they are subject to master netting agreements or similar agreements (where the rights to set-off relate to settlement of amounts receivable and payable under those derivatives) and by balances no longer accounted for as derivatives. June 30, 2015 December 31, 2014 Designated Not Designated Total Designated Not Designated Total (in millions) Assets Foreign currency derivatives $ 7 $ 244 $ 251 $ 6 $ 230 $ 236 Commodity derivatives 31 31 62 25 19 44 Total assets $ 38 $ 275 $ 313 $ 31 $ 249 $ 280 Liabilities Interest rate derivatives $ 369 $ — $ 369 $ 416 $ — $ 416 Cross-currency derivatives 32 — 32 29 — 29 Foreign currency derivatives 32 21 53 38 14 52 Commodity derivatives 11 13 24 7 10 17 Total liabilities $ 444 $ 34 $ 478 $ 490 $ 24 $ 514 June 30, 2015 December 31, 2014 Assets Liabilities Assets Liabilities (in millions) Current $ 91 $ 151 $ 77 $ 148 Noncurrent 222 327 203 366 Total $ 313 $ 478 $ 280 $ 514 Derivatives subject to master netting agreement or similar agreement: Gross amounts recognized in the balance sheet $ 36 $ 425 $ 53 $ 507 Gross amounts of derivative instruments not offset (11 ) (11 ) (10 ) (10 ) Gross amounts of collateral received/pledged not offset — (31 ) — (26 ) Net amount $ 25 $ 383 $ 43 $ 471 Other balances that had been, but are no longer, accounted for as derivatives that are to be amortized to earnings over the remaining term of the associated PPA $ 153 $ 173 $ 161 $ 180
Gain Loss In Accumulated Other Comprehensive Income And Earnings On Effective Portion Of Qualifying Cash Flow Hedges Table	The following tables set forth the pretax gains (losses) recognized in AOCL and earnings related to the effective portion of derivative instruments in qualifying cash flow hedging relationships (including amounts that were reclassified from AOCL as interest expense related to interest rate derivative instruments that previously, but no longer, qualify for cash flow hedge accounting), as defined in the accounting standards for derivatives and hedging, for the periods indicated: Gains (Losses) Recognized in AOCL Gains (Losses) Reclassified from AOCL into Earnings Three Months Ended June 30, Classification in Condensed Consolidated Statements of Operations Three Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) (in millions) Interest rate derivatives $ 94 $ (124 ) Interest expense $ (15 ) $ (33 ) Non-regulated cost of sales (1 ) — Net equity in earnings of affiliates — (2 ) Cross-currency derivatives 1 — Interest expense — 2 Foreign currency transaction gains — 4 Foreign currency derivatives (1 ) 3 Foreign currency transaction gains 2 3 Commodity derivatives 8 (6 ) Non-regulated revenue 10 6 Non-regulated cost of sales (4 ) (3 ) Total $ 102 $ (127 ) $ (8 ) $ (23 ) Gains (Losses) Recognized in AOCL Gains (Losses) Reclassified from AOCL into Earnings Six Months Ended June 30, Classification in Condensed Consolidated Statements of Operations Six Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) (in millions) Interest rate derivatives $ (4 ) $ (274 ) Interest expense $ (39 ) $ (64 ) Non-regulated cost of sales (1 ) (1 ) Net equity in earnings of affiliates — (3 ) Cross-currency derivatives 1 (3 ) Interest expense (1 ) 1 Foreign currency transaction losses — (6 ) Foreign currency derivatives 1 (12 ) Foreign currency transaction gains 8 10 Commodity derivatives 15 18 Non-regulated revenue 15 19 Non-regulated cost of sales (4 ) (1 ) Total $ 13 $ (271 ) $ (22 ) $ (45 )
Gain Loss In Earnings On Ineffective Portion Of Qualifying Cash Flow Hedges Table	The following table presents the pretax gains (losses) recognized in earnings related to the ineffective portion of derivative instruments in qualifying cash flow hedging relationships, as defined in the accounting standards for derivatives and hedging, for the periods indicated: Classification in Condensed Consolidated Statements of Operations Three Months Ended June 30, Six Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) Interest rate derivatives Interest expense $ (1 ) $ 1 $ (1 ) $ 1 Foreign currency derivatives Foreign currency transaction losses — — $ (2 ) $ — Cross-currency derivatives Interest expense — (1 ) — (1 ) Total $ (1 ) $ — $ (3 ) $ —
Gain Loss In Earnings On Non Hedging Instruments Table	The following table sets forth the gains (losses) recognized in earnings related to derivative instruments not designated as hedging instruments under the accounting standards for derivatives and hedging and the amortization of balances that had been, but are no longer, accounted for as derivatives, for the periods indicated: Classification in Condensed Consolidated Statements of Operations Three Months Ended June 30, Six Months Ended June 30, Type of Derivative 2015 2014 2015 2014 (in millions) Foreign currency derivatives Foreign currency transaction gains $ 7 $ 6 39 29 Net equity in earnings of affiliates — 9 — 5 Commodity and other derivatives Non-regulated revenue 1 1 (4 ) 4 Regulated revenue — — — — Non-regulated cost of sales — 2 1 2 Regulated cost of sales (1 ) 2 (5 ) (6 ) Income (loss) from operations of discontinued businesses — (2 ) — (7 ) Net loss from disposal and impairments of discontinued businesses — 72 — 72 Total $ 7 $ 90 $ 31 $ 99

Financing Receivables (Tables)

Financing Receivables (Tables)	6 Months Ended
	Jun. 30, 2015
Receivables [Abstract]
Financing Receivables Table	The following table presents financing receivables by country as of the periods indicated: June 30, 2015 December 31, 2014 (in millions) Argentina $ 256 $ 278 Cameroon sale (1) — 44 United States 20 — Brazil 15 15 Total long-term financing receivables $ 291 $ 337 _____________________________ (1) Represents non-contingent consideration to be received in 2016 from the sale of the Cameroon businesses in 2014. Balance is classified as short-term as of June 30, 2015 . See Note 17 —Discontinued Operations and Held-For-Sale Businesses .

Investments In and Advances To

Investments In and Advances To Affiliates (Tables)	6 Months Ended
	Jun. 30, 2015
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Investments In and Advances to Affiliates Financial Information	The following table summarizes financial information of the Company’s 50%-or-less-owned affiliates that are accounted for using the equity method. Six Months Ended June 30, 50%-or-less-Owned Affiliates 2015 2014 (in millions) Revenue $ 357 $ 568 Operating margin 86 150 Net income 35 107

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Debt In Default	The following table summarizes the Company’s subsidiary non-recourse debt in default as of June 30, 2015 . Due to the defaults, these amounts are included in the current portion of non-recourse debt: Primary Nature of Default June 30, 2015 Subsidiary Debt in Default Net Assets (in millions) Maritza (Bulgaria) Covenant $ 605 $ 612 Kavarna (Bulgaria) Covenant 147 78 Altai (Kazakhstan) Covenant $ 12 16 $ 764

Contingencies and Commitments (

Contingencies and Commitments (Tables)	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Schedule Of Contingent Contractual Obligations [Table Text Block]	Amounts in the table below represent the Parent Company’s current undiscounted exposure to guarantees and the range of maximum undiscounted potential exposure. The maximum exposure is not reduced by the amounts, if any, that could be recovered under the recourse or collateralization provisions in the guarantees. The amounts include contingent obligations of $18 million made by the Parent Company for the direct benefit of the lenders associated with the non-recourse debt of its businesses. The following table summarizes the Parent Company’s contingent contractual obligations as of June 30, 2015 ($ in millions). Contingent Contractual Obligations Amount Number of Agreements Maximum Exposure Range for Each Agreement Guarantees and commitments $ 359 14 $1 — 53 Asset sale related indemnities (1) 27 1 $27 Cash collateralized letters of credit 49 6 <$1 — 30 Letters of credit under the senior secured credit facility 61 7 <$1 — 29 Total $ 496 28 _____________________________ (1) Excludes normal and customary representations and warranties in agreements for the sale of assets (including ownership in associated legal entities) where the associated risk is considered to be nominal.

Pension Plans (Tables)

Pension Plans (Tables)	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Net Periodic Benefit Cost Table	Total pension cost for the periods indicated included the following components: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 U.S. Foreign U.S. Foreign U.S. Foreign U.S. Foreign (in millions) Service cost $ 4 $ 4 $ 4 $ 4 $ 8 $ 8 $ 7 $ 8 Interest cost 11 95 12 129 23 197 24 251 Expected return on plan assets (17 ) (66 ) (16 ) (96 ) (34 ) (138 ) (32 ) (186 ) Amortization of prior service cost 2 — 1 1 4 — 3 2 Amortization of net loss 5 7 3 9 10 15 6 17 Total pension cost $ 5 $ 40 $ 4 $ 47 $ 11 $ 82 $ 8 $ 92

Equity (Tables)

Equity (Tables)	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Schedule of Stockholders Equity	The following table provides a reconciliation of the beginning and ending equity attributable to stockholders of The AES Corporation, noncontrolling interests and total equity as of the periods indicated: Six Months Ended June 30, 2015 Six Months Ended June 30, 2014 The AES Corporation Stockholders’ Equity Noncontrolling Interests Total Equity The AES Corporation Stockholders’ Equity Noncontrolling Interests Total Equity (in millions) Balance at the beginning of the period $ 4,272 $ 3,053 $ 7,325 $ 4,330 $ 3,321 $ 7,651 Net income 211 307 518 75 266 341 Total foreign currency translation adjustment, net of income tax (204 ) (140 ) (344 ) (56 ) 38 (18 ) Total change in derivative fair value, net of income tax 30 (1 ) 29 (99 ) (94 ) (193 ) Total pension adjustments, net of income tax 2 7 9 14 17 31 Cumulative effect of a change in accounting principle (5 ) — (5 ) — — — Capital contributions from noncontrolling interests — 97 97 — 113 113 Distributions to noncontrolling interests — (119 ) (119 ) — (215 ) (215 ) Acquisition of business (1) — 16 16 — — — Disposition of businesses — — — — (151 ) (151 ) Acquisition of treasury stock (307 ) — (307 ) (32 ) — (32 ) Issuance and exercise of stock-based compensation benefit plans, net of income tax 17 — 17 16 — 16 Dividends declared on common stock (70 ) — (70 ) (36 ) — (36 ) Sale of subsidiary shares to noncontrolling interests (82 ) — (82 ) — — — Transaction between entities under common control — — — 5 2 7 Acquisition of subsidiary shares from noncontrolling interests — — — (6 ) — (6 ) Balance at the end of the period $ 3,864 $ 3,220 $ 7,084 $ 4,211 $ 3,297 $ 7,508 _____________________________ (1) Fair value of a tax equity partner’s right to preferential returns as a result of the acquisition of Solar Power PR, LLC (Solar Puerto Rico), which was previously accounted for as an equity method investment.
Components Of Accumulated Other Comprehensive Income	See below for the changes in AOCL by component, net of tax and noncontrolling interests, for the six months ended June 30, 2015 : Unrealized derivative gains (losses), net Unfunded pension obligations, net Foreign currency translation adjustment, net Total (in millions) Balance at the beginning of the period $ (396 ) $ (295 ) $ (2,595 ) $ (3,286 ) Other comprehensive income (loss) before reclassifications 18 — (204 ) (186 ) Amount reclassified to earnings 12 2 — 14 Other comprehensive income (loss) 30 2 (204 ) (172 ) Cumulative effect of a change in accounting principle — — 13 13 Balance at the end of the period $ (366 ) $ (293 ) $ (2,786 ) $ (3,445 )
Schedule Of Amounts Reclassified Out Of Accumulated Other Comprehensive Income	Reclassifications out of AOCL for the periods indicated were as follows: Details About Three Months Ended June 30, Six Months Ended June 30, AOCL Components Affected Line Item in the Condensed Consolidated Statements of Operations 2015 2014 2015 2014 Foreign currency translation adjustment, net (in millions) (1) Net loss from disposal and impairments of discontinued businesses — 53 — $ 47 Net income attributable to The AES Corporation $ — $ 53 $ — $ 47 Unrealized derivative gains (losses), net Non-regulated revenue $ 10 $ 6 $ 15 $ 19 Non-regulated cost of sales (5 ) (3 ) (5 ) $ (2 ) Interest expense (15 ) (31 ) (40 ) (63 ) Foreign currency transaction gains (losses) 2 7 8 4 Income from continuing operations before taxes and equity in earnings of affiliates (8 ) (21 ) (22 ) (42 ) Income tax expense 1 10 3 13 Net equity in earnings of affiliates — (2 ) — (3 ) Income from continuing operations (7 ) (13 ) (19 ) (32 ) Income from continuing operations attributable to noncontrolling interests 4 15 7 15 Net income attributable to The AES Corporation $ (3 ) $ 2 $ (12 ) $ (17 ) Amortization of defined benefit pension actuarial loss, net Regulated cost of sales $ (6 ) $ (9 ) $ (14 ) $ (17 ) Non-regulated cost of sales — 1 — — Other income — (2 ) — (2 ) Income from continuing operations before taxes and equity in earnings of affiliates (6 ) (10 ) (14 ) (19 ) Income tax expense 2 (2 ) 5 1 Income from continuing operations (4 ) (12 ) (9 ) (18 ) Net loss from disposal and impairments of discontinued businesses — 2 — 2 Net income (4 ) (10 ) (9 ) (16 ) Income from continuing operations attributable to noncontrolling interests 3 7 7 11 Net income attributable to The AES Corporation $ (1 ) $ (3 ) $ (2 ) $ (5 ) Total reclassifications for the period, net of income tax and noncontrolling interests $ (4 ) $ 52 $ (14 ) $ 25 _____________________________ (1) Amounts in parentheses indicate debits to the Condensed Consolidated Statements of Operations.

Segments (Tables)

Segments (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Revenue By Segment Table	Information about the Company’s operations by segment for the periods indicated was as follows: Revenue Total Revenue Intersegment External Revenue Three Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 831 $ 893 $ — $ — $ 831 $ 893 Andes SBU 630 724 (2 ) (1 ) 628 723 Brazil SBU 1,315 1,533 — — 1,315 1,533 MCAC SBU 601 692 (1 ) — 600 692 Europe SBU 299 305 (3 ) — 296 305 Asia SBU 187 163 — — 187 163 Corporate and Other 6 5 (5 ) (3 ) 1 2 Total Revenue $ 3,869 $ 4,315 $ (11 ) $ (4 ) $ 3,858 $ 4,311 Revenue Total Revenue Intersegment External Revenue Six Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 1,828 $ 1,894 $ — $ — $ 1,828 $ 1,894 Andes SBU 1,242 1,344 (4 ) (1 ) 1,238 1,343 Brazil SBU 2,645 2,978 — — 2,645 2,978 MCAC SBU 1,199 1,330 (2 ) (1 ) 1,197 1,329 Europe SBU 629 696 (3 ) — 626 696 Asia SBU 306 331 — — 306 331 Corporate and Other 10 7 (8 ) (5 ) 2 2 Total Revenue $ 7,859 $ 8,580 $ (17 ) $ (7 ) $ 7,842 $ 8,573
Adjusted Pre-Tax Contribution by Segment Table	Adjusted PTC (1) Total Adjusted PTC Intersegment External Adjusted PTC Three Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 56 $ 80 $ 3 $ 3 $ 59 $ 83 Andes SBU 81 104 5 1 86 105 Brazil SBU 41 115 — — 41 115 MCAC SBU 106 95 5 10 111 105 Europe SBU 41 73 (1 ) 3 40 76 Asia SBU 30 23 1 — 31 23 Corporate and Other (104 ) (150 ) (13 ) (17 ) (117 ) (167 ) Total Adjusted PTC $ 251 $ 340 $ — $ — $ 251 $ 340 Reconciliation to Income from Continuing Operations before Taxes and Equity Earnings of Affiliates: Non-GAAP Adjustments: Unrealized derivative gains 2 22 Unrealized foreign currency gains (losses) 3 (7 ) Disposition/acquisition gains (losses) 4 (2 ) Impairment losses (30 ) (99 ) Loss on extinguishment of debt (115 ) (13 ) Pretax contribution 115 241 Add: Income from continuing operations before taxes, attributable to noncontrolling interests 269 197 Less: Net equity in earnings of affiliates — 20 Income from continuing operations before taxes and equity in earnings of affiliates $ 384 $ 418 Adjusted PTC (1) Total Adjusted PTC Intersegment External Adjusted PTC Six Months Ended June 30, 2015 2014 2015 2014 2015 2014 (in millions) US SBU $ 162 $ 155 $ 6 $ 6 $ 168 $ 161 Andes SBU 172 157 8 4 180 161 Brazil SBU 62 184 1 1 63 185 MCAC SBU 156 160 9 14 165 174 Europe SBU 126 188 2 6 128 194 Asia SBU 42 31 1 1 43 32 Corporate and Other (217 ) (292 ) (27 ) (32 ) (244 ) (324 ) Total Adjusted PTC $ 503 $ 583 $ — $ — $ 503 $ 583 Reconciliation to Income from Continuing Operations before Taxes and Equity Earnings of Affiliates: Non-GAAP Adjustments: Unrealized derivative gains 17 32 Unrealized foreign currency losses (44 ) (33 ) Disposition/acquisition gains (losses) 9 (1 ) Impairment losses (36 ) (265 ) Loss on extinguishment of debt (142 ) (147 ) Pretax contribution 307 169 Add: Income from continuing operations before taxes, attributable to noncontrolling interests 427 412 Less: Net equity in earnings of affiliates 15 45 Income from continuing operations before taxes and equity in earnings of affiliates $ 719 $ 536 _____________________________ (1) Adjusted PTC in each segment before intersegment eliminations includes the effect of intercompany transactions with other segments except for interest, charges for certain management fees and the write-off of intercompany balances.
Assets By Segment Table	Total Assets June 30, 2015 December 31, 2014 (in millions) US SBU $ 10,089 $ 10,062 Andes SBU 8,349 7,888 Brazil SBU 7,790 8,439 MCAC SBU 5,031 4,948 Europe SBU 3,497 3,525 Asia SBU 3,127 2,972 Assets of held-for-sale businesses 158 — Corporate and Other & eliminations 543 1,132 Total Assets $ 38,584 $ 38,966

Other Income and Expense (Table

Other Income and Expense (Tables)	6 Months Ended
	Jun. 30, 2015
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income, By component[Table Text Block]	Other income includes gains on asset sales and liability extinguishments, favorable judgments on contingencies, and other income from miscellaneous transactions. The components of other income are summarized as follows: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Contingency reversal (Kazakhstan) $ — $ 18 $ — $ 18 Gain on sale of assets 6 8 11 10 Allowance for Funds Used During Construction (IPL) 3 1 7 2 Other 6 6 13 15 Total other income $ 15 $ 33 $ 31 $ 45
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]	Other expense generally includes losses on asset sales and dispositions, losses on legal contingencies and losses from other miscellaneous transactions. The components of other expense are summarized as follows: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Loss on sale and disposal of assets $ 8 $ 12 $ 23 $ 19 Legal settlement 5 — 8 — Other 1 5 3 6 Total other expense $ 14 $ 17 $ 34 $ 25

Asset Impairment Expense (Table

Asset Impairment Expense (Tables)	6 Months Ended
	Jun. 30, 2015
Impairment or Disposal of Tangible Assets Disclosure [Abstract]
Details of Impairment of Long-Lived Assets Held and Used by Asset	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) DP&L (East Bend) $ — $ — $ — $ 12 Ebute — 52 — 52 UK Wind 37 11 37 11 Other — — 8 $ — Total asset impairment expense $ 37 $ 63 $ 45 $ 75

Discontinued Operations and H43

Discontinued Operations and Held-For-Sale Businesses (Tables)	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Revenue Income From Operations Of Discontinued Businesses Income Tax Expense And Impairment Of Discontinued Operations	The following table summarizes the revenue, income from operations, income tax expense, impairment and loss on disposal of all businesses classified as a discontinued operation prior to the adoption of ASU No. 2014-08 for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions) Revenue $ — $ 104 $ — $ 233 Income from operations of discontinued businesses, before income tax $ — $ 15 $ — $ 49 Income tax expense — (8 ) — (22 ) Income from operations of discontinued businesses, after income tax $ — $ 7 $ — $ 27 Net loss from disposal & impairments of discontinued businesses, after income tax $ — $ (13 ) $ — $ (56 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share Basic And Diluted Table	The following tables present a reconciliation of the numerator and denominator of the basic and diluted earnings per share computation for income from continuing operations for the periods indicated. In the table below, income represents the numerator and weighted average shares represent the denominator: Three Months Ended June 30, 2015 2014 Income Shares $ per Share Income Shares $ per Share (in millions except per share data) BASIC EARNINGS PER SHARE Income from continuing operations attributable to The AES Corporation common stockholders $ 69 693 $ 0.10 $ 142 725 $ 0.20 EFFECT OF DILUTIVE SECURITIES Stock options — — — — 1 — Restricted stock units — 2 — — 2 — DILUTED EARNINGS PER SHARE $ 69 695 $ 0.10 $ 142 728 $ 0.20 Six Months Ended June 30, 2015 2014 Income Shares $ per Share Income Shares $ per Share (in millions except per share data) BASIC EARNINGS PER SHARE Income from continuing operations attributable to The AES Corporation common stockholders $ 211 698 $ 0.30 $ 95 725 $ 0.13 EFFECT OF DILUTIVE SECURITIES Stock options — 1 — — 1 — Restricted stock units — 2 — — 2 — DILUTED EARNINGS PER SHARE $ 211 701 $ 0.30 $ 95 728 $ 0.13

Financial Statement Presentat45

Financial Statement Presentation New Accounting Pronouncement Adopted (Details)	6 Months Ended
	Jun. 30, 2015USD ($)integer	Jun. 30, 2014USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 385,000,000
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	(5,000,000)	$ 0
Other Comprehensive Income (Loss), Effect of Change in Accounting Principle, Net of Taxes	13,000,000
Accounting Standard Update 2014-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	(18,000,000)
Other Comprehensive Income (Loss), Effect of Change in Accounting Principle, Net of Taxes	13,000,000
Other Noncurrent Assets [Member] | Accounting Standard Update 2014-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 1,500,000,000
Mong Duong Subsidiary [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of deliverables in an agreement | integer	2
New Accounting Pronouncement or Change in Accounting Principle, Current Period Disclosures, Revenue Recognized, Amount	$ 0

Inventory (Details)

Inventory (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Fuel and other raw materials	$ 391	$ 357
Spare parts and supplies	343	345
Total	$ 734	$ 702

Fair Value (Recurring Measureme

Fair Value (Recurring Measurements) (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 790	$ 1,029
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		478	514
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		15	15
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		520	789
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		271	294
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		255	225
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		207	220
Available-for-sale Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	462	734
Available-for-sale Securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	462	734
Available-for-sale Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	444	709
Available-for-sale Securities [Member] | Debt Securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Debt Securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	444	709
Available-for-sale Securities [Member] | Debt Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Other Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	332	501
Available-for-sale Securities [Member] | Other Debt Obligations [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Other Debt Obligations [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	332	501
Available-for-sale Securities [Member] | Other Debt Obligations [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Government debt securities [Domain]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	33	57
Available-for-sale Securities [Member] | Government debt securities [Domain] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Government debt securities [Domain] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	33	57
Available-for-sale Securities [Member] | Government debt securities [Domain] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	79	151
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	79	151
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	18	25
Available-for-sale Securities [Member] | Equity Securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Equity Securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	18	25
Available-for-sale Securities [Member] | Equity Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Mutual Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	18	25
Available-for-sale Securities [Member] | Mutual Funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Available-for-sale Securities [Member] | Mutual Funds [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	18	25
Available-for-sale Securities [Member] | Mutual Funds [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	0	0
Trading Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		15	15
Trading Securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		15	15
Trading Securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Trading Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Trading Securities [Member] | Mutual Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		15	15
Trading Securities [Member] | Mutual Funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		15	15
Trading Securities [Member] | Mutual Funds [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Trading Securities [Member] | Mutual Funds [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		313	280
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		478	514
Derivative [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		369	416
Derivative [Member] | Cross currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		32	29
Derivative [Member] | Foreign currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		53	52
Derivative [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		24	17
Derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Derivative [Member] | Level 1 [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Derivative [Member] | Level 1 [Member] | Cross currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Derivative [Member] | Level 1 [Member] | Foreign currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Derivative [Member] | Level 1 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		58	55
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		271	294
Derivative [Member] | Level 2 [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		178	206
Derivative [Member] | Level 2 [Member] | Cross currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		32	29
Derivative [Member] | Level 2 [Member] | Foreign currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		38	43
Derivative [Member] | Level 2 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		23	16
Derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		255	225
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		207	220
Derivative [Member] | Level 3 [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		191	210
Derivative [Member] | Level 3 [Member] | Cross currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		0	0
Derivative [Member] | Level 3 [Member] | Foreign currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		15	9
Derivative [Member] | Level 3 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		1	1
Derivative [Member] | Foreign currency derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		251	236
Derivative [Member] | Foreign currency derivatives [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Derivative [Member] | Foreign currency derivatives [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		14	18
Derivative [Member] | Foreign currency derivatives [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		237	218
Derivative [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		62	44
Derivative [Member] | Commodity Contract [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0	0
Derivative [Member] | Commodity Contract [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		44	37
Derivative [Member] | Commodity Contract [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 18	$ 7
[1]	Amortized cost approximated fair value at June 30, 2015 and December 31, 2014.

Fair Value (Level 3 Reconciliat

Fair Value (Level 3 Reconciliation) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Liabilities Transfers In		$ (69)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	$ 85			$ 1
Included in regulatory (assets) liabilities	8	15	$ 8	12
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	48	(60)	48	(60)	$ (108)	$ 5	$ 14	$ (4)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	7	13	32	39
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net [Abstract]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	85			1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Settlements	9	(1)	6	12
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	4	9	28	35
Other comprehensive income - Derivative activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	57	(30)	3	(100)
Other Comprehensive Income- Foreign currency translation activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(10)	(2)	(6)	(20)
Interest Rate Contract [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Liabilities Transfers In		(69)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	53			0
Included in regulatory (assets) liabilities	0	0	0	0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	(191)	(183)	(191)	(183)	(302)	(210)	(87)	(101)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	0	0	0	1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net [Abstract]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	53			0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Settlements	5	3	9	16
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	0	0	0	1
Interest Rate Contract [Member] | Other comprehensive income - Derivative activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	57	(30)	3	(99)
Interest Rate Contract [Member] | Other Comprehensive Income- Foreign currency translation activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(4)	0	7	0
Foreign currency derivatives [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Liabilities Transfers In		0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	0			1
Included in regulatory (assets) liabilities	0	0	0	0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	222	107	222	107	223	209	101	93
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	7	10	30	37
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net [Abstract]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	0			1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Settlements	(2)	(2)	4	(3)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	5	9	26	34
Foreign currency derivatives [Member] | Other comprehensive income - Derivative activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	0	0	0	(1)
Foreign currency derivatives [Member] | Other Comprehensive Income- Foreign currency translation activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(6)	(2)	(13)	(20)
Cross Currency [Domain]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	32
Included in regulatory (assets) liabilities	0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	0		0		(33)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net [Abstract]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	32
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Settlements	1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	0
Cross Currency [Domain] | Other comprehensive income - Derivative activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	0
Cross Currency [Domain] | Other Comprehensive Income- Foreign currency translation activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	0
Commodity Contract [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Liabilities Transfers In		0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	0			0
Included in regulatory (assets) liabilities	8	15	8	12
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	17	16	17	16	$ 4	$ 6	$ 0	$ 4
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	0	3	2	1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)			0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net [Abstract]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	0			0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases, Sales, Issues, Settlements [Abstract]
Settlements	5	(2)	1	(1)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	(1)	0	2	0
Commodity Contract [Member] | Other comprehensive income - Derivative activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	0	0		0
Commodity Contract [Member] | Other Comprehensive Income- Foreign currency translation activity [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	0	$ 0		$ 0
Argentina, Pesos | Foreign currency derivatives [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	220		220
Euro Member Countries, Euro | Foreign currency derivatives [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	$ 2		$ 2

Fair Value (Quantitative Inform

Fair Value (Quantitative Information) (Details) - Jun. 30, 2015	Total
Interest Rate Contract [Member] | Minimum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Entity Credit Risk	3.75%
Interest Rate Contract [Member] | Maximum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Entity Credit Risk	7.34%
Interest Rate Contract [Member] | Weighted Average [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Entity Credit Risk	5.17%
Cross currency derivatives [Member] | Minimum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Entity Credit Risk	0.00%
Cross currency derivatives [Member] | Maximum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Entity Credit Risk	0.00%
Cross currency derivatives [Member] | Weighted Average [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Entity Credit Risk	0.00%
Argentina, Pesos | Foreign Exchange Contract [Member] | Minimum [Member]
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract]
Argentine Peso to U.S. Dollar currency exchange rate after 1 year	13.71
Argentina, Pesos | Foreign Exchange Contract [Member] | Maximum [Member]
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract]
Argentine Peso to U.S. Dollar currency exchange rate after 1 year	36.10
Argentina, Pesos | Foreign Exchange Contract [Member] | Weighted Average [Member]
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract]
Argentine Peso to U.S. Dollar currency exchange rate after 1 year	24.25
Euro Member Countries, Euro | Foreign Exchange Contract [Member] | Minimum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Counterparty Credit Risk	4.84%
Euro Member Countries, Euro | Foreign Exchange Contract [Member] | Maximum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Counterparty Credit Risk	7.34%
Euro Member Countries, Euro | Foreign Exchange Contract [Member] | Weighted Average [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Counterparty Credit Risk	6.09%

Fair Value (Nonrecurring Measur

Fair Value (Nonrecurring Measurements) (Details) - USD ($)		3 Months Ended			6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Other Nonoperating Expense		$ 0	$ 44,000,000		$ 0	$ 44,000,000
Impairment expenses					45,000,000	273,000,000
Goodwill impairment expense		0	0		0	154,000,000
East Bend DPL [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring			2,000,000			2,000,000
Ebute [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring			47,000,000			47,000,000
UK Wind (Newfield) [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring			0			0
DPLER [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Goodwill impairment expense				$ 136,000,000
Buffalo Gap [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Goodwill impairment expense				$ 18,000,000
UK Wind Development Projects [Domain]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring		1,000,000			1,000,000
Long Lived Assets Held And Used [Member] | East Bend DPL [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Impairment expenses	[1]					12,000,000
Long Lived Assets Held And Used [Member] | Ebute [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Impairment expenses	[1]					52,000,000
Long Lived Assets Held And Used [Member] | UK Wind (Newfield) [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Impairment expenses	[1]					11,000,000
Long Lived Assets Held And Used [Member] | Other Affiliates [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Other Nonoperating Expense	[1]				8,000,000
Long Lived Assets Held And Used [Member] | UK Wind Development Projects [Domain]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Other Nonoperating Expense	[1]				37,000,000
Long Lived Assets Held And Used [Member] | Fair Value [Member] | East Bend DPL [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | East Bend DPL [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		2,000,000			2,000,000
Long Lived Assets Held And Used [Member] | Fair Value [Member] | East Bend DPL [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | Ebute [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | Ebute [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | Ebute [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		47,000,000			47,000,000
Long Lived Assets Held And Used [Member] | Fair Value [Member] | UK Wind (Newfield) [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | UK Wind (Newfield) [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | UK Wind (Newfield) [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]		0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | Other Affiliates [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]	0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | Other Affiliates [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]	21,000,000			21,000,000
Long Lived Assets Held And Used [Member] | Fair Value [Member] | Other Affiliates [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]	0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | UK Wind Development Projects [Domain] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]	0			0
Long Lived Assets Held And Used [Member] | Fair Value [Member] | UK Wind Development Projects [Domain] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]	1,000,000			1,000,000
Long Lived Assets Held And Used [Member] | Fair Value [Member] | UK Wind Development Projects [Domain] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1]	0			0
Long Lived Assets Held And Used [Member] | Carrying Amount [Member] | East Bend DPL [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1],[2]		14,000,000			14,000,000
Long Lived Assets Held And Used [Member] | Carrying Amount [Member] | Ebute [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1],[2]		99,000,000			99,000,000
Long Lived Assets Held And Used [Member] | Carrying Amount [Member] | UK Wind (Newfield) [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1],[2]		11,000,000			11,000,000
Long Lived Assets Held And Used [Member] | Carrying Amount [Member] | Other Affiliates [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1],[2]	29,000,000			29,000,000
Long Lived Assets Held And Used [Member] | Carrying Amount [Member] | UK Wind Development Projects [Domain]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[1],[2]	38,000,000			38,000,000
Goodwill [Member] | DPLER [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Goodwill impairment expense	[3]					136,000,000
Goodwill [Member] | Buffalo Gap [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Goodwill impairment expense	[3]					18,000,000
Goodwill [Member] | Fair Value [Member] | DPLER [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[3]		0			0
Goodwill [Member] | Fair Value [Member] | DPLER [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[3]		0			0
Goodwill [Member] | Fair Value [Member] | DPLER [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[3]		0			0
Goodwill [Member] | Fair Value [Member] | Buffalo Gap [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[3]		0			0
Goodwill [Member] | Fair Value [Member] | Buffalo Gap [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[3]		0			0
Goodwill [Member] | Fair Value [Member] | Buffalo Gap [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[3]		10,000,000			10,000,000
Goodwill [Member] | Carrying Amount [Member] | DPLER [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[2],[3]		136,000,000			136,000,000
Goodwill [Member] | Carrying Amount [Member] | Buffalo Gap [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[2],[3]		28,000,000			28,000,000
Equity Method Investments [Member] | Silver Ridge Power [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Other Nonoperating Expense	[4]					44,000,000
Equity Method Investments [Member] | Solar Spain [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Other Nonoperating Expense					0
Equity Method Investments [Member] | Fair Value [Member] | Silver Ridge Power [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[4]		0			0
Equity Method Investments [Member] | Fair Value [Member] | Silver Ridge Power [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[4]		0			0
Equity Method Investments [Member] | Fair Value [Member] | Silver Ridge Power [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[4]		273,000,000			273,000,000
Equity Method Investments [Member] | Fair Value [Member] | Solar Spain [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring		0			0
Equity Method Investments [Member] | Fair Value [Member] | Solar Spain [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring		0			0
Equity Method Investments [Member] | Fair Value [Member] | Solar Spain [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring		29,000,000			29,000,000
Equity Method Investments [Member] | Carrying Amount [Member] | Silver Ridge Power [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[2],[4]		317,000,000			317,000,000
Equity Method Investments [Member] | Carrying Amount [Member] | Solar Spain [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[2]	$ 29,000,000			$ 29,000,000
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Cameroon [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Impairment expenses	[4]					38,000,000
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Fair Value [Member] | Cameroon [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[4]		0			0
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Fair Value [Member] | Cameroon [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[4]		334,000,000			334,000,000
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Fair Value [Member] | Cameroon [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[4]		0			0
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Carrying Amount [Member] | Cameroon [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract]
Fair Value, Nonrecurring	[2],[4]		$ 372,000,000			$ 372,000,000
Income Approach Valuation Technique [Member] | Equity Method Investments [Member] | Minimum [Member] | Solar Spain [Member]
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate					(3.00%)
Fair Value Inputs, Long-term Pre-tax Operating Margin, Percent					(13.00%)
Fair Value Inputs, Discount Rate					0.00%
Income Approach Valuation Technique [Member] | Equity Method Investments [Member] | Maximum [Member] | Solar Spain [Member]
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate					0.00%
Fair Value Inputs, Long-term Pre-tax Operating Margin, Percent					56.00%
Fair Value Inputs, Discount Rate					0.00%
Income Approach Valuation Technique [Member] | Equity Method Investments [Member] | Weighted Average [Member] | Solar Spain [Member]
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate					0.00%
Fair Value Inputs, Long-term Pre-tax Operating Margin, Percent					24.00%
Fair Value Inputs, Discount Rate					12.00%
[1]	See Note 15—Asset Impairment Expense for further information.
[2]	(1) Represents the carrying value at the date of measurement, before fair value adjustment.
[3]	See Note 14—Goodwill Impairment for further information.
[4]	See Note 17—Discontinued Operations and Held-For-Sale Businesses for further information.

Fair Value (Instruments Not Mea

Fair Value (Instruments Not Measured at Fair Value) (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Carrying Amount [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	$ 260	$ 301
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt		15,749	15,600
Recourse debt		5,014	5,258
Fair Value [Member]
Assets, Fair Value Disclosure [Abstract]
Value added tax		31	36
Accounts receivable - noncurrent	[1]	247	290
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt		16,101	16,008
Recourse debt		5,150	5,552
Level 1 [Member] | Fair Value [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	0	0
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt		0	0
Recourse debt		0	0
Level 2 [Member] | Fair Value [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	0	0
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt		12,644	12,538
Recourse debt		5,150	5,552
Level 3 [Member] | Fair Value [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	247	290
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt		3,457	3,470
Recourse debt		$ 0	$ 0
[1]	These accounts receivable principally relate to amounts due from CAMMESA, and are included in Noncurrent assets—Other in the accompanying Condensed Consolidated Balance Sheets. The fair value and carrying amount of these receivables exclude VAT of $31 million and $36 million at June 30, 2015 and December 31, 2014, respectively.

Investments In Marketable Sec52

Investments In Marketable Securities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 411,000,000		$ 411,000,000
Available-for-sale Securities, Debt Securities, Noncurrent	33,000,000		33,000,000
Gain Loss On Marketable Securities
Realized losses on the sale of available-for-sale securities	0	$ 0	0	$ 0
Other-than-temporary impairment of marketable securities	0	0	0	0
Gross proceeds from sales of AFS securities	1,395,000,000	1,158,000,000	2,481,000,000	2,218,000,000
Available-for-sale Securities, Gross Realized Gain (Loss)- (Less than)	1,000,000	1,000,000	1,000,000	1,000,000
Trading Securities, Realized Gain (Loss)- (Less than)	$ 1,000,000	$ 1,000,000	$ 1,000,000	$ 1,000,000

Derivative Instruments and He53

Derivative Instruments and Hedging Activities - Part 1 (Details) - Jun. 30, 2015 € in Millions, £ in Millions, T in Millions, PHP in Millions, MWh in Millions, KZT in Millions, COP in Millions, CLP in Millions, CLF in Millions, BRL in Millions, ARS in Millions, $ in Millions

USD ($)MWhT

PHPMWhT

CLFMWhT

BRLMWhT

COPMWhT

KZTMWhT

EUR (€)MWhT

CLPMWhT

ARSMWhT

GBP (£)MWhT

Interest Rate Contract [Member] | Libor USD [Member]

Derivative Tables [Line Items]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

[1]

11 years

% of Debt Currently Hedged by Index

[1],[2]

55.00%

55.00%

55.00%

55.00%

55.00%

55.00%

55.00%

55.00%

55.00%

55.00%

Interest Rate Contract [Member] | Euribor EUR [Member]

Derivative Tables [Line Items]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

[1]

7 years

% of Debt Currently Hedged by Index

[1],[2]

75.00%

75.00%

75.00%

75.00%

75.00%

75.00%

75.00%

75.00%

75.00%

75.00%

Interest Rate Contract [Member] | Maximum [Member] | Libor USD [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

[1]

$ 3,061

Interest Rate Contract [Member] | Maximum [Member] | Euribor EUR [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

[1]

564

€ 506

Interest Rate Contract [Member] | Current Notional [Member] | Libor USD [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

[1]

2,689

Interest Rate Contract [Member] | Current Notional [Member] | Euribor EUR [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

[1]

$ 564

€ 506

Cross currency derivatives [Member] | Chilean Unidad De Fomento CLF [Member]

Derivative Tables [Line Items]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

[1]

13 years

% of Debt Currently Hedged by Index

[1],[2]

82.00%

82.00%

82.00%

82.00%

82.00%

82.00%

82.00%

82.00%

82.00%

82.00%

Cross currency derivatives [Member] | Maximum [Member] | Chilean Unidad De Fomento CLF [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

[1]

$ 172

CLF 4

Cross currency derivatives [Member] | Current Notional [Member] | Chilean Unidad De Fomento CLF [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

[1]

172

4

Foreign Currency Options [ Member] | Chilean Unidad De Fomento CLF [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 311

CLF 8

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Foreign Currency Options [ Member] | Chilean Peso CLP [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 126

CLP 80,373

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Foreign Currency Options [ Member] | Brazilian Real BRL [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 33

BRL 103

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Foreign Currency Options [ Member] | Euro EUR [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 119

€ 107

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Foreign Currency Options [ Member] | Colombian Peso COP [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 56

COP 145,874

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Foreign Currency Options [ Member] | Argentine Peso ARS [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 224

ARS 2,032

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

10 years

Weighted Average Remaining Term (string type)

[4]

10

Foreign Currency Options [ Member] | British Pound GBP [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 24

£ 16

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Foreign Currency Options [ Member] | Philippine Peso PHP [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 17

PHP 751

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

1 year

Weighted Average Remaining Term (string type)

[4]

<1

Embedded Foreign Currency Derivatives [Member] | Kazakhstani Tenge KZT [Member]

Derivative Tables [Line Items]

Derivatives, notional amount

$ 20

KZT 3,761

[3]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

[4]

1 year

Commodity Contract [Member] | Power MWh [Member]

Derivative Tables [Line Items]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

[5]

2 years

Notional (MWh) | MWh

9

9

9

9

9

9

9

9

9

9

Commodity Contract [Member] | Coal Metric Tons [Member]

Derivative Tables [Line Items]

Weighted Average Remaining Term (less than 1 for Foreign Currency Derivatives for Chilean Peso, Chilean Unidad de Fomento, Brazilian Real, Euro, Colombian Peso, British Pound, and Philippine Peso)

[5]

2 years

Notional (MWh) | T

1

1

1

1

1

1

1

1

1

1

[1]

The Company’s interest rate derivative instruments primarily include accreting and amortizing notionals. The maximum derivative notional represents the largest notional at any point between June 30, 2015 and the maturity of the derivative instrument, which includes forward-starting derivative instruments. The interest rate and cross-currency derivatives range in maturity through 2033 and 2028, respectively.

[2]

The percentage of variable-rate debt currently hedged is based on the related index and excludes forecasted issuances of debt and variable-rate debt tied to other indices where the Company has no interest rate derivatives.

[3]

Represents contractual notionals. The notionals for options have not been probability adjusted, which generally would decrease them.

[4]

Represents the remaining tenor of our foreign currency derivatives weighted by the corresponding notional. These options and forwards and these embedded derivatives range in maturity through 2025 and 2017, respectively.

[5]

Represents the remaining tenor of our commodity derivatives weighted by the corresponding volume. These derivatives range in maturity through 2017.

Derivative Instruments and He54

Derivative Instruments and Hedging Activities - Part 2 (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Assets
Derivative Assets, Gross	$ 313	$ 280
Liabilities
Derivative Liabilities, Gross	478	514
Asset, Formerly Accounted for as a Derivative, to be Amortized into Earnings	153	161
Liability, Formerly Accounted for as a Derivative, to be Amortized into Earnings	173	180
Subject to netting arrangement [Member]
Assets
Derivative Assets, Gross	36	53
Derivative Assets Not Offset Under Netting Arrangements	(11)	(10)
Derivative Assets Not Offset By Collateral	0	0
Derivative Assets, Net	25	43
Liabilities
Derivative Liabilities, Gross	425	507
Derivative Liabilities Not Offset Under Netting Arrangements	(11)	(10)
Derivative Liabilities Not Offset By Collateral	(31)	(26)
Derivative Liabilities, Net	383	471
Current [Member]
Assets
Derivative Assets, Gross	91	77
Liabilities
Derivative Liabilities, Gross	151	148
Noncurrent [Member]
Assets
Derivative Assets, Gross	222	203
Liabilities
Derivative Liabilities, Gross	327	366
Designated as Hedging Instruments [Member]
Assets
Derivative Assets, Gross	38	31
Liabilities
Derivative Liabilities, Gross	444	490
Not Designated as Hedging Instruments [Member]
Assets
Derivative Assets, Gross	275	249
Liabilities
Derivative Liabilities, Gross	34	24
Interest Rate Contract [Member]
Liabilities
Derivative Liabilities, Gross	369	416
Interest Rate Contract [Member] | Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	369	416
Interest Rate Contract [Member] | Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	0	0
Cross currency derivatives [Member]
Liabilities
Derivative Liabilities, Gross	32	29
Cross currency derivatives [Member] | Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	32	29
Cross currency derivatives [Member] | Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	0	0
Foreign Exchange Contract [Member]
Assets
Derivative Assets, Gross	251	236
Liabilities
Derivative Liabilities, Gross	53	52
Foreign Exchange Contract [Member] | Designated as Hedging Instruments [Member]
Assets
Derivative Assets, Gross	7	6
Liabilities
Derivative Liabilities, Gross	32	38
Foreign Exchange Contract [Member] | Not Designated as Hedging Instruments [Member]
Assets
Derivative Assets, Gross	244	230
Liabilities
Derivative Liabilities, Gross	21	14
Commodity Contract [Member]
Assets
Derivative Assets, Gross	62	44
Liabilities
Derivative Liabilities, Gross	24	17
Commodity Contract [Member] | Designated as Hedging Instruments [Member]
Assets
Derivative Assets, Gross	31	25
Liabilities
Derivative Liabilities, Gross	11	7
Commodity Contract [Member] | Not Designated as Hedging Instruments [Member]
Assets
Derivative Assets, Gross	31	19
Liabilities
Derivative Liabilities, Gross	$ 13	$ 10

Derivative Instruments and He55

Derivative Instruments and Hedging Activities - Part 3 (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ (8,000,000)	$ (23,000,000)	$ (22,000,000)	$ (45,000,000)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		0	(13,000,000)	0	(56,000,000)	[1]
Gain Loss By Type Of Derivative Tables
Gain (Losses) Recognized in AOCL		102,000,000	(127,000,000)	13,000,000	(271,000,000)
Electric Production Expense		1,470,000,000	1,648,000,000	2,926,000,000	3,184,000,000
Gains (Losses) Recognized in Earnings (ineffective portion)		(1,000,000)	0	(3,000,000)	0
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		7,000,000	90,000,000	31,000,000	99,000,000
AOCI to be recognized in next 12 months table
Gain on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring		0	6,000,000	0	6,000,000
Interest Rate Contract [Member]
Gain Loss By Type Of Derivative Tables
Gain (Losses) Recognized in AOCL		94,000,000	(124,000,000)	(4,000,000)	(274,000,000)
AOCI to be recognized in next 12 months table
Accumulated Other Comprehensive Income Loss Before Tax Expected Increase Decrease Next Twelve Months		(123,000,000)		(123,000,000)
Interest Rate Contract [Member] | Interest Expense [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(15,000,000)	(33,000,000)	(39,000,000)	(64,000,000)
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (ineffective portion)		(1,000,000)	1,000,000	(1,000,000)	1,000,000
Interest Rate Contract [Member] | Non-regulated cost of sales [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(1,000,000)	0	(1,000,000)	(1,000,000)
Interest Rate Contract [Member] | Net Equity In Earnings Of Affiliates [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		0	(2,000,000)	0	(3,000,000)
Cross currency derivatives [Member]
Gain Loss By Type Of Derivative Tables
Gain (Losses) Recognized in AOCL		1,000,000	0	1,000,000	(3,000,000)
AOCI to be recognized in next 12 months table
Accumulated Other Comprehensive Income Loss Before Tax Expected Increase Decrease Next Twelve Months		(5,000,000)		(5,000,000)
Cross currency derivatives [Member] | Interest Expense [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		0	2,000,000	(1,000,000)	1,000,000
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (ineffective portion)		0	(1,000,000)	0	(1,000,000)
Cross currency derivatives [Member] | Foreign currency transaction gains (losses) [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		0	4,000,000	0	(6,000,000)
Foreign currency derivatives [Member]
Gain Loss By Type Of Derivative Tables
Gain (Losses) Recognized in AOCL		(1,000,000)	3,000,000	1,000,000	(12,000,000)
AOCI to be recognized in next 12 months table
Accumulated Other Comprehensive Income Loss Before Tax Expected Increase Decrease Next Twelve Months		8,000,000		8,000,000
Foreign currency derivatives [Member] | Foreign currency transaction gains (losses) [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		2,000,000	3,000,000	8,000,000	10,000,000
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (ineffective portion)		0	0	(2,000,000)	0
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		7,000,000	6,000,000	39,000,000	29,000,000
Foreign currency derivatives [Member] | Net Equity In Earnings Of Affiliates [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		0	9,000,000	0	5,000,000
Commodity Contract [Member]
Gain Loss By Type Of Derivative Tables
Gain (Losses) Recognized in AOCL		8,000,000	(6,000,000)	15,000,000	18,000,000
Commodity Contract [Member] | Non-regulated cost of sales [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(4,000,000)	(3,000,000)	(4,000,000)	(1,000,000)
Commodity Contract [Member] | Non-regulated revenue [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		10,000,000	6,000,000	15,000,000	19,000,000
Other derivative Contract [Member]
AOCI to be recognized in next 12 months table
Accumulated Other Comprehensive Income Loss Before Tax Expected Increase Decrease Next Twelve Months		12,000,000		12,000,000
Other derivative Contract [Member] | Non-regulated cost of sales [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		0	2,000,000	1,000,000	2,000,000
Other derivative Contract [Member] | Non-regulated revenue [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		1,000,000	1,000,000	(4,000,000)	4,000,000
Other derivative Contract [Member] | Regulated Cost Of Sales [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		(1,000,000)	2,000,000	(5,000,000)	(6,000,000)
Other derivative Contract [Member] | Income (Loss) From Operations Of Discontinued Business [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		0	(2,000,000)	0	(7,000,000)
Other derivative Contract [Member] | Net Loss from Disposal and Impairments of Discontinued Business [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		0	72,000,000	0	72,000,000
Other derivative Contract [Member] | Regulated Revenue [Member]
Gain Loss By Type Of Derivative Tables
Gains (Losses) Recognized in Earnings (not designated as hedging instruments)		0	0	0	0
Unrealized Derivative Losses, Net [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Gain Loss By Type Of Derivative Tables
Electric Production Expense	[2]	$ (5,000,000)	$ (3,000,000)	$ (5,000,000)	$ (2,000,000)
[1]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions)Revenue$— $104 $— $233Income from operations of discontinued businesses, before income tax$— $15 $— $49Income tax expense— (8) — (22)Income from operations of discontinued businesses, after income tax$— $7 $— $27Net loss from disposal & impairments of discontinued businesses, after income tax$— $(13) $— $(56)
[2]	Amounts in parentheses indicate debits to the Condensed Consolidated Statements of Operations.

Derivative Instruments and He56

Derivative Instruments and Hedging Activities - Part 4 (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Credit Risk-Related Contingent Features [Line Items]
Gain on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring	$ 0	$ 6,000,000	$ 0	$ 6,000,000
DPL Subsidiary [Member]
Credit Risk-Related Contingent Features [Line Items]
Net liability position, derivative transactions	19,000,000		19,000,000		$ 12,000,000
Collateral posted for derivative transactions	7,000,000		7,000,000		5,000,000
Cash Collateral Received From Counterparties	$ 0		$ 0		$ 0

Derivative Instruments and He57

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure abstract (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivative Assets, Gross	$ 313	$ 280
Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Assets, Gross	251	236
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Assets, Gross	275	249
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Assets, Gross	$ 244	$ 230

Financing Receivables (Details)

Financing Receivables (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Financing Receivable Recorded Investment [Line Items]
Financing receivable		$ 291	$ 337
Argentina [Member]
Financing Receivable Recorded Investment [Line Items]
Financing receivable		256	278
CAMEROON
Financing Receivable Recorded Investment [Line Items]
Financing receivable	[1]	0	44
UNITED STATES
Financing Receivable Recorded Investment [Line Items]
Financing receivable		20	0
Brazil [Member]
Financing Receivable Recorded Investment [Line Items]
Financing receivable		$ 15	$ 15
[1]	(1) Represents non-contingent consideration to be received in 2016 from the sale of the Cameroon businesses in 2014. Balance is classified as short-term as of June 30, 2015. See Note 17—Discontinued Operations and Held-For-Sale Businesses.

Investments In and Advances T59

Investments In and Advances To Affiliates (Details) - USD ($) $ in Millions	Apr. 11, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Investments in and Advances to Affiliates [Line Items]
Operating margin		$ 754	$ 819	$ 1,475	$ 1,613
Net income		$ 264	$ 275	518	341
Acquisitions, net of cash acquired				18	728
Proceeds from Interests in Affiliate				2	890
Minority Owned Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Revenue				357	568
Operating margin				86	150
Net income				$ 35	$ 107
guacolda [Member]
Investments in and Advances to Affiliates [Line Items]
Acquisitions, net of cash acquired	$ 728
Proceeds from Interests in Affiliate	$ 730

Debt - Recourse Debt (Details)

Debt - Recourse Debt (Details) - USD ($) $ in Millions

Jun. 16, 2014

May. 20, 2014

Mar. 07, 2014

Apr. 30, 2015

Mar. 31, 2015

Feb. 28, 2014

Jun. 30, 2015

Mar. 31, 2015

Jun. 30, 2014

Jun. 30, 2015

Jun. 30, 2014

Apr. 02, 2015

Debt Instrument [Line Items]

Loss on extinguishment of debt

$ 122

$ (23)

$ 15

$ 145

$ 149

8% senior unsecured notes due 2017 and 2020 [Member]

Debt Instrument [Line Items]

Loss on extinguishment of debt

$ 82

Senior Notes [Member] | 5.50% Senior Notes Due 2024 [Member]

Debt Instrument [Line Items]

Interest rate on senior notes

5.50%

Issued senior notes

$ 775

$ 750

Senior Notes [Member] | Floating Rate Notes Due June 2019 [Member]

Debt Instrument [Line Items]

Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate

3.00%

Senior Notes [Member] | 5.50% Percent Senior Notes Due 2025 [Domain]

Debt Instrument [Line Items]

Interest rate on senior notes

5.50%

Issued senior notes

$ 575

Unsecured Debt [Member] | 7.75% Senior Notes Due 2015 [Member]

Debt Instrument [Line Items]

Interest rate on senior notes

7.75%

7.75%

Unsecured Debt [Member] | 9.75% Senior Notes Due 2016 [Member] [Domain]

Debt Instrument [Line Items]

Redeemed notes

$ 164

Interest rate on senior notes

9.75%

9.75%

Unsecured Debt [Member] | 7.75% Senior Notes Due 2014 [Member]

Debt Instrument [Line Items]

Redeemed notes

$ 110

Interest rate on senior notes

7.75%

Unsecured Debt [Member] | 8.0% Senior Notes Due 2017 [Member]

Debt Instrument [Line Items]

Redeemed notes

$ 625

$ 344

Interest rate on senior notes

8.00%

8.00%

Loss on extinguishment of debt

$ 132

Unsecured Debt [Member] | 8.0% Senior Notes Due 2020 [Domain]

Debt Instrument [Line Items]

Redeemed notes

$ 156

Interest rate on senior notes

8.00%

Recourse Debt [Member] | 7.75% Senior Notes Due 2015 [Member]

Debt Instrument [Line Items]

Redeemed notes

$ 151

Secured Debt [Member] | Senior Secured Term Loan Due 2018 [Member]

Debt Instrument [Line Items]

Redeemed notes

$ 29

$ 767

Loss on extinguishment of debt

$ (10)

Debt - Non-Recourse Debt Narrat

Debt - Non-Recourse Debt Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ (122)	$ 23	$ (15)	$ (145)	$ (149)
Nonrecourse Debt [Member] | Gener Subsidiary [Member]
Debt Instrument [Line Items]
Issued new debt	150			150
Nonrecourse Debt [Member] | Sul Subsidiary [Member]
Debt Instrument [Line Items]
Issued new debt	499			499
Repayments of Debt				468
Nonrecourse Debt [Member] | IPALCO Enterprises, Inc. [Member]
Debt Instrument [Line Items]
Issued new debt	405			405
Repayments of Debt				384
Nonrecourse Debt [Member] | PANAMA
Debt Instrument [Line Items]
Issued new debt	300			300
Repayments of Debt				287
Nonrecourse Debt [Member] | Cochrane Subsidiary [Member]
Debt Instrument [Line Items]
Issued new debt	297			297
Nonrecourse Debt [Member] | Eletropaulo [Domain]
Debt Instrument [Line Items]
Issued new debt	118			118
Nonrecourse Debt [Member] | Mong Duong Subsidiary [Member]
Debt Instrument [Line Items]
Issued new debt	$ 104			$ 104

Debt - Subsidiary Non-recourse

Debt - Subsidiary Non-recourse Debt in Default or Accelerated (Details) $ in Millions	Jun. 30, 2015USD ($)
Nonrecourse Debt Default [Line Items]
Debt Default Amount	$ 764
Maritza [Member]
Nonrecourse Debt Default [Line Items]
Net Assets	612
Kavarna [Member]
Nonrecourse Debt Default [Line Items]
Net Assets	78
Altai [Domain]
Nonrecourse Debt Default [Line Items]
Net Assets	16
Covenant Violation [Member] | Maritza [Member]
Nonrecourse Debt Default [Line Items]
Debt Default, Short-term Debt, Amount	605
Covenant Violation [Member] | Kavarna [Member]
Nonrecourse Debt Default [Line Items]
Debt Default, Short-term Debt, Amount	147
Covenant Violation [Member] | Altai [Domain]
Nonrecourse Debt Default [Line Items]
Debt Default, Short-term Debt, Amount	$ 12

Contingencies and Commitments63

Contingencies and Commitments (Details) $ in Millions		6 Months Ended
		Jun. 30, 2015USD ($)agreement	Dec. 31, 2013USD ($)
Loss Contingencies [Line Items]
Regulatory Liabilities			$ 269
Guarantees Letters Of Credit [Abstract]
The range of expiration dates of guarantees made by the Parent Company		less than one year to more than 19 years
Obligations made by the Parent Company associated with non-recourse debt		$ 18
Contingent Contractual Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted		$ 496
Number of Agreements | agreement		28
Guarantee Obligations [Member]
Contingent Contractual Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted		$ 359
Number of Agreements | agreement		14
Loss Contingency, Range of Possible Loss, Minimum		$ 1
Loss Contingency, Range of Possible Loss, Maximum		53
Indemnification Agreement [Member]
Contingent Contractual Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	[1]	$ 27
Number of Agreements | agreement	[1]	1
Loss Contingency, Range of Possible Loss, Minimum	[1]	$ 27
Loss Contingency, Range of Possible Loss, Maximum	[1]	27
Financial Standby Letter of Credit [Member]
Contingent Contractual Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted		$ 61
Number of Agreements | agreement		7
Loss Contingency, Range of Possible Loss, Minimum		$ 1
Loss Contingency, Range of Possible Loss, Maximum		29
Standby Letters of Credit [Member]
Contingent Contractual Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted		$ 49
Number of Agreements | agreement		6
Loss Contingency, Range of Possible Loss, Minimum		$ 1
Loss Contingency, Range of Possible Loss, Maximum		$ 30
Minimum [Member] | Standby Letters of Credit [Member]
Contingent Contractual Obligations [Line Items]
Letter of credit fee percentage paid		0.20%
Maximum [Member] | Standby Letters of Credit [Member]
Contingent Contractual Obligations [Line Items]
Letter of credit fee percentage paid		2.50%
[1]	(1) Excludes normal and customary representations and warranties in agreements for the sale of assets (including ownership in associated legal entities) where the associated risk is considered to be nominal.

Contingencies and Commitments -

Contingencies and Commitments - Loss Contingencies (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Eletropaulo [Domain]
Loss Contingencies [Line Items]
Reversal Of Legal Contingency	$ 161
Environmental Remediation Contingency [Domain]
Environmental Contingencies
Liability recorded for projected environmental remediation costs	10	$ 12
Litigation Contingencies
Maximum potential loss	1
Litigation [Member]
Litigation Contingencies
Minimum potential loss	1,200
Maximum potential loss	1,300
Aggregate reserves for claims deemed both probable and reasonably estimable	199	$ 199
Regulated Revenue [Member] | Eletropaulo [Domain]
Loss Contingencies [Line Items]
Reversal Of Legal Contingency	97
Interest Expense [Member] | Eletropaulo [Domain]
Loss Contingencies [Line Items]
Reversal Of Legal Contingency	$ 64

Pension Plans (Details)

Pension Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
U.S. [Member]
Defined Benefit Plan Net Periodic Benefit Cost Abstract
Service cost	$ 4	$ 4	$ 8	$ 7
Interest cost	11	12	23	24
Expected return on plan assets	(17)	(16)	(34)	(32)
Amortization of prior service cost	2	1	4	3
Amortization of net loss	5	3	10	6
Total pension cost	5	4	11	8
Defined Benefit Pension Contributions Disclosure [Abstract]
Pension employer contributions			26
Pension estimated future employer contributions remainder of fiscal year	0		0
Foreign [Member]
Defined Benefit Plan Net Periodic Benefit Cost Abstract
Service cost	4	4	8	8
Interest cost	95	129	197	251
Expected return on plan assets	(66)	(96)	(138)	(186)
Amortization of prior service cost	0	1	0	2
Amortization of net loss	7	9	15	17
Total pension cost	40	$ 47	82	$ 92
Defined Benefit Pension Contributions Disclosure [Abstract]
Pension employer contributions			48
Pension estimated future employer contributions remainder of fiscal year	$ 35		$ 35

Equity (Details)

Equity (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended		60 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance				$ 7,325	$ 7,651
Net income		$ 264	$ 275	518	341
Total foreign currency translation adjustment, net of income tax		77	(29)	(344)	(18)
Total change in derivative fair value, net of income tax		89	(92)	29	(193)
Total pension adjustments, net of income tax		4	25	9	31
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		(5)	0	(5)	0	$ (5)
Capital contributions from noncontrolling interests				97	113
Distributions to noncontrolling interests				(119)	(215)
Noncontrolling Interest, Increase from Business Combination	[1]			16	0
Disposition of businesses				0	(151)
Acquisition of treasury stock		(271)		(307)	(32)	(1,600)
Issuance and exercise of stock-based compensation benefit plans, net of income tax				17	16
Dividends declared on common stock				(70)	(36)
Sale of subsidiary shares to noncontrolling interests				(82)	0
noncontrolling interest, increase from transaction between entities under common control				0	7
Acquisition of subsidiary shares from noncontrolling interests				0	(6)
Ending Balance		$ 7,084	$ 7,508	$ 7,084	$ 7,508	7,084
Common Stock, Dividends, Per Share, Declared		$ 0.10	$ 0.05	$ 0.10	$ 0.05
Common Stock, Dividends, Per Share, Cash Paid				$ 0.10
Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance				$ 4,272	$ 4,330
Net income				211	75
Total foreign currency translation adjustment, net of income tax				(204)	(56)
Total change in derivative fair value, net of income tax				30	(99)
Total pension adjustments, net of income tax				2	14
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		$ (5)	$ 0	(5)	0	(5)
Capital contributions from noncontrolling interests				0	0
Distributions to noncontrolling interests				0	0
Noncontrolling Interest, Increase from Business Combination	[1]			0	0
Disposition of businesses				0	0
Acquisition of treasury stock				(307)	(32)
Issuance and exercise of stock-based compensation benefit plans, net of income tax				17	16
Dividends declared on common stock				(70)	(36)
Sale of subsidiary shares to noncontrolling interests				(82)	0
noncontrolling interest, increase from transaction between entities under common control				0	5
Acquisition of subsidiary shares from noncontrolling interests				0	(6)
Ending Balance		3,864	4,211	3,864	4,211	3,864
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance				3,053	3,321
Net income				307	266
Total foreign currency translation adjustment, net of income tax				(140)	38
Total change in derivative fair value, net of income tax				(1)	(94)
Total pension adjustments, net of income tax				7	17
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		0	0	0	0	0
Capital contributions from noncontrolling interests				97	113
Distributions to noncontrolling interests				(119)	(215)
Noncontrolling Interest, Increase from Business Combination	[1]			16	0
Disposition of businesses				0	(151)
Acquisition of treasury stock				0	0
Issuance and exercise of stock-based compensation benefit plans, net of income tax				0	0
Dividends declared on common stock				0	0
Sale of subsidiary shares to noncontrolling interests				0	0
noncontrolling interest, increase from transaction between entities under common control				0	2
Acquisition of subsidiary shares from noncontrolling interests				0	0
Ending Balance		$ 3,220	$ 3,297	$ 3,220	$ 3,297	$ 3,220
[1]	(1) Fair value of a tax equity partner’s right to preferential returns as a result of the acquisition of Solar Power PR, LLC (Solar Puerto Rico), which was previously accounted for as an equity method investment.

Equity Reclassifications Out of

Equity Reclassifications Out of AOCL (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassifications Out Of Accumulated Other Comprehensive Income [Line Items]
Non-regulated revenue		$ 1,850	$ 2,195	$ 3,754	$ 4,315
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(8)	(23)	(22)	(45)
Regulated cost of sales		1,634	1,844	3,441	3,776
Non-regulated cost of sales		1,470	1,648	2,926	3,184
Other Income		15	33	31	45
Interest expense		(310)	(323)	(673)	(696)
Foreign currency transaction gains (losses)		15	7	(8)	(12)
INCOME FROM CONTINUING OPERATIONS BEFORE TAXES AND EQUITY IN EARNINGS OF AFFILIATES		384	418	719	536
Income tax expense		(120)	(157)	(216)	(211)
Net equity in earnings of affiliates		0	20	15	45
INCOME FROM CONTINUING OPERATIONS		264	281	518	370
Net loss from disposal and impairments of discontinued businesses		0	(13)	0	(56)	[1]
Net income		264	275	518	341
Income from continuing operations attributable to noncontrolling interests		195	139	307	275
Interest income		133	73	223	136
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION		69	133	211	75
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				14
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	[2]	(4)	52	(14)	25
Unrealized Derivative Losses, Net [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications Out Of Accumulated Other Comprehensive Income [Line Items]
Non-regulated revenue	[2]	10	6	15	19
Non-regulated cost of sales	[2]	(5)	(3)	(5)	(2)
Interest expense	[2]	(15)	(31)	(40)	(63)
Foreign currency transaction gains (losses)	[2]	2	7	8	4
INCOME FROM CONTINUING OPERATIONS BEFORE TAXES AND EQUITY IN EARNINGS OF AFFILIATES	[2]	(8)	(21)	(22)	(42)
Income tax expense	[2]	1	10	3	13
Net equity in earnings of affiliates	[2]	0	(2)	0	(3)
INCOME FROM CONTINUING OPERATIONS	[2]	(7)	(13)	(19)	(32)
Income from continuing operations attributable to noncontrolling interests	[2]	4	15	7	15
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION	[2]	(3)	2	(12)	(17)
Amortization Of Defined Benefit Pension Actuarial Loss, Net [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications Out Of Accumulated Other Comprehensive Income [Line Items]
Regulated cost of sales	[2]	(6)	(9)	(14)	(17)
Non-regulated cost of sales	[2]	0	1	0	0
Other Income	[2]	0	(2)	0	(2)
INCOME FROM CONTINUING OPERATIONS BEFORE TAXES AND EQUITY IN EARNINGS OF AFFILIATES	[2]	(6)	(10)	(14)	(19)
Income tax expense	[2]	2	(2)	5	1
INCOME FROM CONTINUING OPERATIONS	[2]	(4)	(12)	(9)	(18)
Net loss from disposal and impairments of discontinued businesses	[2]	0	2	0	2
Net income	[2]	(4)	(10)	(9)	(16)
Income from continuing operations attributable to noncontrolling interests	[2]	3	7	(7)	(11)
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION	[2]	(1)	(3)	(2)	(5)
Foreign Currency Translation Adjustment, Net [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications Out Of Accumulated Other Comprehensive Income [Line Items]
Net loss from disposal and impairments of discontinued businesses	[2]	0	53	0	47
NET INCOME ATTRIBUTABLE TO THE AES CORPORATION	[2]	0	53	0	47
Interest Rate Contract [Member] | Net Equity In Earnings Of Affiliates [Member]
Reclassifications Out Of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ 0	$ (2)	$ 0	$ (3)
[1]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions)Revenue$— $104 $— $233Income from operations of discontinued businesses, before income tax$— $15 $— $49Income tax expense— (8) — (22)Income from operations of discontinued businesses, after income tax$— $7 $— $27Net loss from disposal & impairments of discontinued businesses, after income tax$— $(13) $— $(56)
[2]	Amounts in parentheses indicate debits to the Condensed Consolidated Statements of Operations.

Equity Equity Transactions with

Equity Equity Transactions with Noncontrolling Interests (Details) - Entity [Domain]	3 Months Ended
	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Apr. 01, 2015USD ($)	Mar. 15, 2015USD ($)MW	Dec. 15, 2014
Noncontrolling Interest [Line Items]
Future Noncontrolling Interest, Ownership by noncontrolling owner once transaction is complete	30.00%
Business Combination, Separately Recognized Transactions, Additional Disclosures, Issuance Costs Not Expensed	$ 82,000,000
Sale of Stock, Consideration Received Per Transaction	461,000,000
Gain (Loss) on Disposition of Stock in Subsidiary	$ 0
IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Net proceeds received from sale of businesses		$ 247,000,000
Noncontrolling Interest, Ownership Percentage by Parent					100.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	24.90%	15.00%
sales agreement, Buyer option to purchase ownership interest, exercised			$ 214,000,000
IPALCO Enterprises, Inc. [Member] | Acquire additional shares through 2016 [Member]
Noncontrolling Interest [Line Items]
Sale Agreement, Buyer Option To Purchase Ownership Interest, Sales Price	$ 135,000,000	$ 349,000,000
Investment Options, acquisition percentage		17.65%
Jordan [Member]
Noncontrolling Interest [Line Items]
Disposal Group Not Discontinued Operation Ownership Interest Sold				40.00%
Disposal Group Not Discontinued Operation Generation Capacity | MW				247
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds				$ 30,000,000
Additional Paid-in Capital [Member] | IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Unrealized Gain (Loss) on Investments	377,000,000
Retained Earnings [Member] | IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Unrealized Gain (Loss) on Investments	$ (377,000,000)

Equity Stock Repurchase Program

Equity Stock Repurchase Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	May. 18, 2015	Aug. 07, 2015	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Aug. 07, 2015
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased During Period, Shares			20.8			129.5
Stock Repurchased During Period, Value			$ 271	$ 307	$ 32	$ 1,600
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 117	$ 117		$ 117
Treasury Stock Acquired, Average Cost Per Share						$ 12.47
share repurchase program CIC buyback [Domain]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased During Period, Shares	20
Stock Repurchased During Period, Value	$ 261
Treasury Stock Acquired, Average Cost Per Share	$ 13.07
Subsequent Event [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased During Period, Shares		2.2					131.7
Stock Repurchased During Period, Value		$ 29					$ 1,600
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 88					$ 88
Treasury Stock Acquired, Average Cost Per Share							$ 12.48

Equity Accumulated Other Compre

Equity Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unfunded pension obligation, Net of Tax		$ (293)		$ (293)		$ (295)
Foreign currency translation adjustment, Net of Tax		(2,786)		(2,786)		(2,595)
Accumulated Other Comprehensive Income (Loss), Net of Tax		(3,445)		(3,445)		(3,286)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				(186)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax		(366)		(366)		$ (396)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				14
Other Comprehensive Income (Loss), Effect of Change in Accounting Principle, Net of Taxes				13
Other comprehensive income (loss), before cumulative effect of change in accounting principle				(172)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				18
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				12
Other Comprehensive Income (Loss), Effect of Change in Accounting Principle, Net of Taxes				0
Other comprehensive income (loss), before cumulative effect of change in accounting principle				30
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				2
Other Comprehensive Income (Loss), Effect of Change in Accounting Principle, Net of Taxes				0
Other comprehensive income (loss), before cumulative effect of change in accounting principle				2
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				(204)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				0
Other Comprehensive Income (Loss), Effect of Change in Accounting Principle, Net of Taxes				13
Other comprehensive income (loss), before cumulative effect of change in accounting principle				(204)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	[1]	$ (4)	$ 52	$ (14)	$ 25
[1]	Amounts in parentheses indicate debits to the Condensed Consolidated Statements of Operations.

Equity Stock Offering (Details)

Equity Stock Offering (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	60 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	May. 18, 2015
Class of Stock [Line Items]
sale of shares by noncontrolling interest			$ 60
Sale of shares by noncontrolling interest, per share			$ 13.25
Treasury Stock, Shares, Acquired	20.8	129.5
Common Stock [Member]
Class of Stock [Line Items]
sale of shares by noncontrolling interest			$ 40

Segments (Details)

Segments (Details) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)segment	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Segment Reporting Information [Line Items]
Number of strategic business units | segment				6
Number of reportable segments | segment				6
Reconciliation To Income From Continuing Operations Before Taxes
INCOME FROM CONTINUING OPERATIONS BEFORE TAXES AND EQUITY IN EARNINGS OF AFFILIATES		$ 384	$ 418	$ 719	$ 536
Assets
Total Assets		38,584		38,584		$ 38,966
External [Member]
Revenue
Total Revenue		3,858	4,311	7,842	8,573
Adjusted PTC
Adjusted Pretax Contribution	[1]	251	340	503	583
Reconciliation To Income From Continuing Operations Before Taxes
Unrealized derivative gains (losses)		2	22	17	32
Unrealized foreign currency gains (losses)		3	(7)	(44)	(33)
Disposition/acquisition gains		4	(2)	9	(1)
Impairment losses		(30)	(99)	(36)	(265)
Loss on extinguishment of debt		(115)	(13)	(142)	(147)
Pretax contribution		115	241	307	169
Add: income from continuing operations before taxes, attributable to noncontrolling interests		269	197	427	412
Less: Net equity in earnings of affiliates		0	20	15	45
INCOME FROM CONTINUING OPERATIONS BEFORE TAXES AND EQUITY IN EARNINGS OF AFFILIATES		384	418	719	536
Operating Segments [Member]
Revenue
Total Revenue		3,869	4,315	7,859	8,580
Adjusted PTC
Adjusted Pretax Contribution	[1]	251	340	503	583
Intersegment Eliminations [Member]
Revenue
Total Revenue		(11)	(4)	(17)	(7)
Adjusted PTC
Adjusted Pretax Contribution	[1]	0	0	0	0
UNITED STATES
Assets
Total Assets		10,089		10,089		10,062
UNITED STATES | External [Member]
Revenue
Total Revenue		831	893	1,828	1,894
Adjusted PTC
Adjusted Pretax Contribution	[1]	59	83	168	161
UNITED STATES | Operating Segments [Member]
Revenue
Total Revenue		831	893	1,828	1,894
Adjusted PTC
Adjusted Pretax Contribution	[1]	56	80	162	155
UNITED STATES | Intersegment Eliminations [Member]
Revenue
Total Revenue		0	0	0	0
Adjusted PTC
Adjusted Pretax Contribution	[1]	3	3	6	6
Andes - Generation [Member]
Assets
Total Assets		8,349		8,349		7,888
Andes - Generation [Member] | External [Member]
Revenue
Total Revenue		628	723	1,238	1,343
Adjusted PTC
Adjusted Pretax Contribution	[1]	86	105	180	161
Andes - Generation [Member] | Operating Segments [Member]
Revenue
Total Revenue		630	724	1,242	1,344
Adjusted PTC
Adjusted Pretax Contribution	[1]	81	104	172	157
Andes - Generation [Member] | Intersegment Eliminations [Member]
Revenue
Total Revenue		(2)	(1)	(4)	(1)
Adjusted PTC
Adjusted Pretax Contribution	[1]	5	1	8	4
BRAZIL
Assets
Total Assets		7,790		7,790		8,439
BRAZIL | External [Member]
Revenue
Total Revenue		1,315	1,533	2,645	2,978
Adjusted PTC
Adjusted Pretax Contribution	[1]	41	115	63	185
BRAZIL | Operating Segments [Member]
Revenue
Total Revenue		1,315	1,533	2,645	2,978
Adjusted PTC
Adjusted Pretax Contribution	[1]	41	115	62	184
BRAZIL | Intersegment Eliminations [Member]
Revenue
Total Revenue		0	0	0	0
Adjusted PTC
Adjusted Pretax Contribution	[1]	0	0	1	1
MCAC - Generation [Member]
Assets
Total Assets		5,031		5,031		4,948
MCAC - Generation [Member] | External [Member]
Revenue
Total Revenue		600	692	1,197	1,329
Adjusted PTC
Adjusted Pretax Contribution	[1]	111	105	165	174
MCAC - Generation [Member] | Operating Segments [Member]
Revenue
Total Revenue		601	692	1,199	1,330
Adjusted PTC
Adjusted Pretax Contribution	[1]	106	95	156	160
MCAC - Generation [Member] | Intersegment Eliminations [Member]
Revenue
Total Revenue		(1)	0	(2)	(1)
Adjusted PTC
Adjusted Pretax Contribution	[1]	5	10	9	14
Europe [Member]
Assets
Total Assets		3,497		3,497		3,525
Europe [Member] | External [Member]
Revenue
Total Revenue		296	305	626	696
Adjusted PTC
Adjusted Pretax Contribution	[1]	40	76	128	194
Europe [Member] | Operating Segments [Member]
Revenue
Total Revenue		299	305	629	696
Adjusted PTC
Adjusted Pretax Contribution	[1]	41	73	126	188
Europe [Member] | Intersegment Eliminations [Member]
Revenue
Total Revenue		(3)	0	(3)	0
Adjusted PTC
Adjusted Pretax Contribution	[1]	(1)	3	2	6
Asia [Member]
Assets
Total Assets		3,127		3,127		2,972
Asia [Member] | External [Member]
Revenue
Total Revenue		187	163	306	331
Adjusted PTC
Adjusted Pretax Contribution	[1]	31	23	43	32
Asia [Member] | Operating Segments [Member]
Revenue
Total Revenue		187	163	306	331
Adjusted PTC
Adjusted Pretax Contribution	[1]	30	23	42	31
Asia [Member] | Intersegment Eliminations [Member]
Revenue
Total Revenue		0	0	0	0
Adjusted PTC
Adjusted Pretax Contribution	[1]	1	0	1	1
Corporate Other And Other Eliminations [Member]
Assets
Total Assets		543		543		1,132
Corporate Other And Other Eliminations [Member] | External [Member]
Revenue
Total Revenue		1	2	2	2
Adjusted PTC
Adjusted Pretax Contribution	[1]	(117)	(167)	(244)	(324)
Corporate Other And Other Eliminations [Member] | Operating Segments [Member]
Revenue
Total Revenue		6	5	10	7
Adjusted PTC
Adjusted Pretax Contribution	[1]	(104)	(150)	(217)	(292)
Corporate Other And Other Eliminations [Member] | Intersegment Eliminations [Member]
Revenue
Total Revenue		(5)	(3)	(8)	(5)
Adjusted PTC
Adjusted Pretax Contribution	[1]	(13)	$ (17)	(27)	$ (32)
Discontinued Operations [Member]
Assets
Total Assets		$ 158		$ 158		$ 0
[1]	Adjusted PTC in each segment before intersegment eliminations includes the effect of intercompany transactions with other segments except for interest, charges for certain management fees and the write-off of intercompany balances.

Other Income and Expense - Othe

Other Income and Expense - Other Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Other Nonoperating Income (Expense) [Line Items]
Gain (Loss) on Disposition of Assets			$ (12)	$ (8)
Allowance for Funds Used During Construction, Capitalized Interest	$ 3	$ 1	7	2
Other Nonoperating Income	6	6	13	15
Other Income	15	33	31	45
Other Income [Member]
Schedule of Other Nonoperating Income (Expense) [Line Items]
Gain (Loss) on Disposition of Assets	6	8	11	10
Altai [Domain]
Schedule of Other Nonoperating Income (Expense) [Line Items]
Reversal Of Legal Contingency	$ 0	$ 18	$ 0	$ 18

Other Income and Expense - Ot74

Other Income and Expense - Other Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of other operating expense [Line Items]
Gain (Loss) on Disposition of Assets			$ (12)	$ (8)
Other Expenses	$ 14	$ 17	34	25
Other Cost and Expense, Operating	1	5	3	6
Other Expense [Member]
Schedule of other operating expense [Line Items]
Gain (Loss) on Disposition of Assets	8	12	23	19
Settled Litigation [Member]
Schedule of other operating expense [Line Items]
Other Expenses	$ 5	$ 0	$ 8	$ 0

Goodwill Impairment (Details)

Goodwill Impairment (Details)	3 Months Ended			6 Months Ended
	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)projectMW	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)
Goodwill [Line Items]
Goodwill impairment expense	$ 0	$ 0		$ 0	$ 154,000,000
DPLER [Member]
Goodwill [Line Items]
Goodwill			$ 136,000,000
Goodwill implied fair value			0
Goodwill impairment expense			136,000,000
Buffalo Gap [Member]
Goodwill [Line Items]
Goodwill impairment expense			$ 18,000,000
Number of wind projects | project			3
Generation Capacity Mega Watts | MW			524

Asset Impairment Expense (Detai

Asset Impairment Expense (Details) - Disposal Groups, Including Discontinued Operations, Name [Domain]	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)project	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)project	Jun. 30, 2014USD ($)	Mar. 31, 2014MW
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 37,000,000	$ 63,000,000	$ 45,000,000	$ 75,000,000
UK Wind Development Projects [Domain]
Asset Impairment Expense [Line Items]
number of projects no longer being pursued | project	2
number of impaired projects | project	4		4
Long-Lived Assets	$ 38,000,000		$ 38,000,000
Impairment of Long-Lived Assets Held-for-use	37,000,000		37,000,000
Assets, fair value	1,000,000		1,000,000
East Bend DPL [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	0	0	0	12,000,000
Generation Capacity Mega Watts | MW					186
Assets, fair value		2,000,000		2,000,000
Ebute [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	0	52,000,000	0	52,000,000
Assets, fair value		47,000,000		47,000,000
UK Wind (Newfield) [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use		11,000,000		11,000,000
Assets, fair value		0		0
Other Impairment [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 0	$ 0	$ 8,000,000	$ 0

Other Non-Operating Expense (De

Other Non-Operating Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Other Nonoperating Expense [Line Items]
Total other non-operating expense	$ 0	$ 44	$ 0	$ 44

Other Non-Operating Expense Sil

Other Non-Operating Expense Silver Ridge (Details) - Subsequent Event Type [Domain] - USD ($) $ in Millions	Jul. 02, 2014	Jun. 16, 2014	Jun. 30, 2014
Silver Ridge Power [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Equity Method Investment, Purchase Price Agreement		$ 165
Equity Method Investment, Other than Temporary Impairment			$ 44
Equity Method Investment, Net Sales Proceeds	$ 179
Silver Ridge - Italy [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage			50.00%
Equity Method Investment, Purchase Price Agreement		$ 42

Discontinued Operations And H79

Discontinued Operations And Held-For-Sale Businesses (Details) $ in Millions	Feb. 24, 2014USD ($)	Jan. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Nov. 30, 2013USD ($)projectMW	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)		Mar. 31, 2014USD ($)	Jun. 30, 2015USD ($)business	Sep. 30, 2014business	Oct. 30, 2013MW	Sep. 30, 2013
Discontinued Operations Income Loss
Revenue					$ 0	$ 104	$ 0	$ 233	[1]
Income from operations of discontinued businesses, before income tax					0	15	0	49	[1]
Income tax expense					0	(8)	0	(22)	[1]
Income from operations of discontinued businesses, after income tax					0	7	0	27	[1]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Number of businesses classified as discontinued operations after adoption of new accounting standard | business											0
Impairment expenses							45	273
Net loss from disposal and impairments of discontinued businesses					0	(13)	0	(56)	[1]
Sonel [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of ownership in subsidiary percent														56.00%
Kribi [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of ownership in subsidiary percent														56.00%
Dibamba [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of ownership in subsidiary percent														56.00%
Cameroon [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Impairment expenses										$ 101
Carrying amount			$ 435			435		435
Fair value less costs to sell			334			334		334
Saurashtra [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net proceeds received from sale of businesses	$ 8
Generation Capacity Mega Watts | MW													39
US Wind Projects [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of ownership in subsidiary percent				100.00%
Net proceeds received from sale of businesses		$ 27
Generation Capacity Mega Watts | MW				234
Number of wind projects | project				3
Deferred proceeds from divestiture of businesses		$ 3
Armenia Mountain [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)					2	2	6	5
Cameroon [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Number of Equity Interests Sold | business												3
Disposal Group, Including Discontinued Operation, Consideration			200			200		200
Letter of Credit Related to Sale Agreement			40			40		40
Net proceeds received from sale of businesses			156
Net loss from disposal and impairments of discontinued businesses						(7)
Armenia Mountain [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Generation Capacity Mega Watts | MW				101
Buyer option to purchase ownership percent				100.00%
Buyer option to purchase ownership interest, sales price				$ 75
Noncurrent Asset [Member] | Cameroon [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Non-contingent Consideration, Fair Value, Amount to be Received			$ 44			$ 44		$ 44
Carrying amount					$ 44		$ 44				$ 44
[1]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (in millions)Revenue$— $104 $— $233Income from operations of discontinued businesses, before income tax$— $15 $— $49Income tax expense— (8) — (22)Income from operations of discontinued businesses, after income tax$— $7 $— $27Net loss from disposal & impairments of discontinued businesses, after income tax$— $(13) $— $(56)

Acquisitions (Details)

Acquisitions (Details) - Feb. 18, 2015 - USD ($) $ in Millions	Total
Business Combinations [Abstract]
Goodwill, Acquired During Period	$ 14
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Business Combination, Consideration Transferred, Other	$ 5
Business Combination, Consideration Transferred	25
Payments to Acquire Businesses, Gross	$ 20

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
BASIC EARNINGS PER SHARE
Income (loss) from continuing operations attributable to The AES Corporation common stockholders (Income)	$ 69	$ 142	$ 211	$ 95
Income (loss) from continuing operations attributable to The AES Corporation common stockholders (Shares)	693	725	698	725
Income from continuing operations attributable to The AES Corporation common stockholders, net of tax	$ 0.10	$ 0.20	$ 0.30	$ 0.13
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options (Shares)	0	1	1	1
Restricted stock units (Shares)	2	2	2	2
Diluted Earnings Per Share (Income)	$ 69	$ 142	$ 211	$ 95
Diluted Earnings Per Share (Shares)	695	728	701	728
Diluted Earnings Per Share	$ 0.10	$ 0.20	$ 0.30	$ 0.13
Income (Loss) from Continuing Operations, Per Diluted Share	0.10	0.20	0.30	0.13
Earnings Per Share, Diluted	$ 0.10	$ 0.18	$ 0.30	$ 0.10
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			15	15
Stock Compensation Plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			6	7

Subsequent Events (Details)

Subsequent Events (Details) - Long-term Debt, Type [Domain] - Share Repurchase Program [Domain] - Investment [Domain] - Debt Instrument, Name [Domain] - Extinguishment of Debt, Type [Domain] - Scenario, Unspecified [Domain] $ / shares in Units, shares in Millions, $ in Millions	Jul. 29, 2015USD ($)MW	Jul. 17, 2015$ / shares	Jul. 01, 2015USD ($)	Aug. 07, 2015USD ($)shares	Jun. 30, 2015USD ($)$ / sharesshares	Mar. 31, 2015USD ($)	Jun. 30, 2014USD ($)$ / shares	Jun. 30, 2015USD ($)$ / shares	Jun. 30, 2014USD ($)$ / shares	Jun. 30, 2015USD ($)$ / sharesshares	Aug. 07, 2015USD ($)$ / sharesshares
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared | $ / shares					$ 0.10		$ 0.05	$ 0.10	$ 0.05
Treasury Stock, Shares, Acquired | shares					20.8					129.5
Treasury Stock Acquired, Average Cost Per Share | $ / shares										$ 12.47
Stock Repurchase Program, Remaining Authorized Repurchase Amount					$ 117			$ 117		$ 117
Gains (Losses) on Extinguishment of Debt					$ (122)	$ 23	$ (15)	$ (145)	$ (149)
Armenia Mountain [Member]
Subsequent Event [Line Items]
Proceeds from Divestiture of Businesses			$ 70
Subsequent Event [Member]
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared | $ / shares		$ 0.10
Treasury Stock, Shares, Acquired | shares				2.2							131.7
Treasury Stock Acquired, Average Cost Per Share | $ / shares											$ 12.48
Stock Repurchase Program, Remaining Authorized Repurchase Amount				$ 88							$ 88
Subsequent Event [Member] | Solar Spain [Member]
Subsequent Event [Line Items]
Sale of Stock, Percentage of Ownership before Transaction	50.00%
Equity Method Investment, Net Sales Proceeds	$ 32
Generation Capacity Mega Watts | MW	31