NRG Energy (NRG) 10-Q 5 Nov 20 2020 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2020	Nov. 05, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-15891
Entity Registrant Name	NRG Energy, Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	41-1724239
Entity Address, Address Line One	804 Carnegie Center,
Entity Address, City or Town	Princeton
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	08540
City Area Code	609
Local Phone Number	524-4500
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	NRG
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		244,220,834
Entity Central Index Key	0001013871
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Revenues
Total operating revenues	$ 2,809	$ 2,996	$ 7,066	$ 7,626
Operating Costs and Expenses
Cost of operations	2,034	2,153	4,925	5,649
Depreciation and amortization	99	91	318	261
Impairment losses	29	0	29	1
Selling, general and administrative costs	253	210	670	615
Reorganization costs	0	1	3	16
Development costs	1	1	6	5
Total operating costs and expenses	2,416	2,456	5,951	6,547
Gain on sale of assets	0	0	6	2
Operating Income/(Loss)	393	540	1,121	1,081
Other Income/(Expense)
Equity in earnings of unconsolidated affiliates	36	29	37	8
Impairment losses on investments	0	(107)	(18)	(107)
Other income, net	11	17	52	49
Loss on debt extinguishment, net	0	0	(1)	(47)
Interest expense	(99)	(99)	(292)	(318)
Total other income/(expense)	(52)	(160)	(222)	(415)
Income from Continuing Operations Before Income Taxes	341	380	899	666
Income tax expense	92	6	216	9
Income from Continuing Operations	249	374	683	657
(Loss)/income from discontinued operations, net of income tax	0	(2)	0	399
Net Income	249	372	683	1,056
Less: Net income attributable to redeemable noncontrolling interests	0	0	0	1
Net Income Attributable to NRG Energy, Inc.	$ 249	$ 372	$ 683	$ 1,055
Earnings per Share
Weighted average number of common shares outstanding — basic (in shares)	244	254	246	266
Income from continuing operations per weighted average common share — basic (in usd per share)	$ 1.02	$ 1.47	$ 2.78	$ 2.47
(Loss)/income from discontinued operations per weighted average common share — basic (in usd per share)	0	(0.01)	0	1.50
Earnings per Weighted Average Common Share — Basic (in usd per share)	$ 1.02	$ 1.46	$ 2.78	$ 3.97
Weighted average number of common shares outstanding — diluted (in shares)	245	256	247	268
Income from continuing operations per weighted average common share — diluted (in usd per share)	$ 1.02	$ 1.46	$ 2.77	$ 2.45
(Loss)/income from discontinued operations per weighted average common share — diluted (in usd per share)	0	(0.01)	0	1.49
Earnings per Weighted Average Common Share — Diluted (in usd per share)	$ 1.02	$ 1.45	$ 2.77	$ 3.94

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 249			$ 372			$ 683	$ 1,056
Other Comprehensive Income/(Loss)
Foreign currency translation adjustments	4			(4)			2	(4)
Available-for-sale securities	0			(14)			0	(13)
Defined benefit plans	0			(41)			0	(47)
Other comprehensive income/(loss)	4	$ 13	$ (15)	(59)	$ (3)	$ (2)	2	(64)
Comprehensive Income/(Loss)	253			313			685	992
Less: Comprehensive income attributable to redeemable noncontrolling interest	0			0			0	1
Comprehensive Income Attributable to NRG Energy, Inc.	$ 253			$ 313			$ 685	$ 991

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 697	$ 345
Funds deposited by counterparties	15	32
Restricted cash	6	8
Accounts receivable, net	1,126	1,025
Inventory	330	383
Derivative instruments	578	860
Cash collateral paid in support of energy risk management activities	77	190
Prepayments and other current assets	258	245
Total current assets	3,087	3,088
Property, plant and equipment, net	2,573	2,593
Other Assets
Equity investments in affiliates	376	388
Operating lease right-of-use assets, net	345	464
Goodwill	579	579
Intangible assets, net	721	789
Nuclear decommissioning trust fund	828	794
Derivative instruments	315	310
Deferred income taxes	3,087	3,286
Other non-current assets	314	240
Total other assets	6,565	6,850
Total Assets	12,225	12,531
Current Liabilities
Current portion of long-term debt	3	88
Current portion of operating lease liabilities	69	73
Accounts payable	753	722
Derivative instruments	495	781
Cash collateral received in support of energy risk management activities	15	32
Accrued expenses and other current liabilities	651	663
Total current liabilities	1,986	2,359
Other Liabilities
Long-term debt	5,792	5,803
Non-current operating lease liabilities	297	483
Nuclear decommissioning reserve	311	298
Nuclear decommissioning trust liability	508	487
Derivative instruments	318	322
Deferred income taxes	17	17
Other non-current liabilities	1,062	1,084
Total other liabilities	8,305	8,494
Total Liabilities	10,291	10,853
Redeemable noncontrolling interest in subsidiaries	0	20
Commitments and Contingencies
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 423,041,349 and 421,890,790 shares issued and 244,147,420 and 248,996,189 shares outstanding at September 30, 2020 and December 31, 2019, respectively	4	4
Additional paid-in-capital	8,511	8,501
Accumulated deficit	(1,157)	(1,616)
Treasury stock, at cost - 178,893,929 and 172,894,601 shares at September 30, 2020 and December 31, 2019, respectively	(5,234)	(5,039)
Accumulated other comprehensive loss	(190)	(192)
Total Stockholders' Equity	1,934	1,658
Total Liabilities and Stockholders' Equity	$ 12,225	$ 12,531

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, par or value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	423,041,349	421,890,790
Common stock, shares outstanding (in shares)	244,147,420	248,996,189
Treasury stock, shares (in shares)	178,893,929	172,894,601

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows from Operating Activities
Net Income	$ 683	$ 1,056
(Loss)/income from discontinued operations, net of income tax	0	399
Income/(loss) from continuing operations	683	657
Adjustments to reconcile net income to cash provided by operating activities:
Distributions from and equity in losses/(earnings) of unconsolidated affiliates	6	(5)
Depreciation and amortization	318	261
Accretion of asset retirement obligations	46	31
Provision for credit losses	74	87
Amortization of nuclear fuel	40	40
Amortization of financing costs and debt discount/premiums	23	20
Loss on debt extinguishment, net	1	47
Amortization of emissions allowances and energy credits	60	28
Amortization of unearned equity compensation	17	15
Gain on sale and disposal of assets	(22)	(20)
Impairment losses	47	108
Changes in derivative instruments	(7)	36
Changes in deferred income taxes and liability for uncertain tax benefits	202	(3)
Changes in collateral deposits in support of energy risk management activities	96	129
Changes in nuclear decommissioning trust liability	39	27
Changes in other working capital	(237)	(569)
Cash provided/(used) by continuing operations	1,386	889
Cash provided by discontinued operations	0	8
Net Cash Provided/(Used) by Operating Activities	1,386	897
Cash Flows from Investing Activities
Payments for acquisitions of assets and businesses	(277)	(348)
Capital expenditures	(167)	(183)
Net proceeds from notes receivable	0	2
Net (purchases)/sales of emission allowances	(15)	14
Investments in nuclear decommissioning trust fund securities	(360)	(295)
Proceeds from the sale of nuclear decommissioning trust fund securities	318	271
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	15	1,293
Changes in investments in unconsolidated affiliates	2	(94)
Contributions to discontinued operations	0	(44)
Cash (used)/provided by continuing operations	(484)	616
Cash used by discontinued operations	0	(2)
Net Cash (Used)/Provided by Investing Activities	(484)	614
Cash Flows from Financing Activities
Payments of dividends to common stockholders	(221)	(24)
Payments for share repurchase activity	(229)	(1,322)
Payments for debt extinguishment costs	0	(24)
Purchase of and distributions to noncontrolling interests from subsidiaries	(2)	(1)
Proceeds from issuance of common stock	1	3
Proceeds from issuance of long-term debt	59	1,833
Repayments of long-term debt	(62)	(2,487)
Net (repayments)/proceeds of Revolving Credit Facility	(83)	215
Other	(6)	0
Cash used by continuing operations	(567)	(1,841)
Cash provided by discontinued operations	0	43
Net Cash Used by Financing Activities	(567)	(1,798)
Effect of exchange rate changes on cash and cash equivalents	(2)	0
Change in Cash from discontinued operations	0	49
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	333	(336)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	385	613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$ 718	$ 277

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions		Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2018		$ (1,234)	$ 4	$ 8,510	$ (6,022)	$ (3,632)	$ (94)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		482			482
Other comprehensive (loss) income, net of tax		(2)					(2)
Share repurchases		(749)		(10)		(739)
Equity-based awards activity, net		(32)		(32)
Issuance of common stock		5		5
Common stock dividends and dividend equivalents declared	[1]	(8)			(8)
Ending balance at Mar. 31, 2019		(1,538)	4	8,473	(5,548)	(4,371)	(96)
Beginning balance at Dec. 31, 2018		(1,234)	4	8,510	(6,022)	(3,632)	(94)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		1,055
Other comprehensive (loss) income, net of tax		(64)
Ending balance at Sep. 30, 2019		(1,571)	4	8,494	(4,991)	(4,920)	(158)
Beginning balance at Mar. 31, 2019		(1,538)	4	8,473	(5,548)	(4,371)	(96)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		201			201
Other comprehensive (loss) income, net of tax		(3)					(3)
Share repurchases		(305)		10		(315)
Equity-based awards activity, net		5		5
Common stock dividends and dividend equivalents declared	[1]	(8)			(8)
Ending balance at Jun. 30, 2019		(1,648)	4	8,488	(5,355)	(4,686)	(99)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		372			372
Other comprehensive (loss) income, net of tax		(59)					(59)
Share repurchases		(234)				(234)
Equity-based awards activity, net		5		5
Issuance of common stock		1		1
Common stock dividends and dividend equivalents declared	[1]	(8)			(8)
Ending balance at Sep. 30, 2019		(1,571)	4	8,494	(4,991)	(4,920)	(158)
Beginning balance at Dec. 31, 2019		1,658	4	8,501	(1,616)	(5,039)	(192)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		121			121
Other comprehensive (loss) income, net of tax		(15)					(15)
Repurchase of partners' equity interest in VIE		18		18
Share repurchases		(150)				(150)
Equity-based awards activity, net		(21)		(21)
Common stock dividends and dividend equivalents declared	[1]	(75)			(75)
Ending balance at Mar. 31, 2020		1,536	4	8,498	(1,570)	(5,189)	(207)
Beginning balance at Dec. 31, 2019		1,658	4	8,501	(1,616)	(5,039)	(192)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		683
Other comprehensive (loss) income, net of tax		2
Ending balance at Sep. 30, 2020		1,934	4	8,511	(1,157)	(5,234)	(190)
Beginning balance at Mar. 31, 2020		1,536	4	8,498	(1,570)	(5,189)	(207)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		313			313
Other comprehensive (loss) income, net of tax		13					13
Shares reissuance for ESPP		2				2
Share repurchases		(47)				(47)
Equity-based awards activity, net		6		6
Issuance of common stock		1		1
Common stock dividends and dividend equivalents declared	[1]	(74)			(74)
Ending balance at Jun. 30, 2020		1,750	4	8,505	(1,331)	(5,234)	(194)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to NRG Energy, Inc.		249			249
Other comprehensive (loss) income, net of tax		4					4
Equity-based awards activity, net		6		6
Common stock dividends and dividend equivalents declared	[1]	(75)			(75)
Ending balance at Sep. 30, 2020		$ 1,934	$ 4	$ 8,511	$ (1,157)	$ (5,234)	$ (190)
[1]	Dividends per common share were $0.30 for each of the quarters ended September 30, 2020, June 30, 2020 and March 31, 2020 and $0.03 for each of the quarters ended September 30, 2019, June 30, 2019 and March 31, 2019

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends per common share (in usd per share)	$ 0.30	$ 0.30	$ 0.30	$ 0.03	$ 0.03	$ 0.03

Nature of Business and Basis of

Nature of Business and Basis of Presentation	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business and Basis of Presentation	Nature of Business and Basis of Presentation General NRG Energy, Inc., or NRG or the Company, is an integrated power company built on dynamic retail brands with diverse generation assets. NRG brings the power of energy to consumers by producing and selling electricity and related products and services in major competitive power markets in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG is a customer-driven business focused on perfecting the integrated model by balancing retail load with generation supply within its deregulated markets. The Company sells energy, services, and innovative, sustainable products and services directly to retail customers under the brand names NRG, Reliant, Green Mountain Energy, Stream, and XOOM Energy, as well as other brand names owned by NRG, supported by approximately 23,000 MW of generation as of September 30, 2020. The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with the SEC's regulations for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements. The following notes should be read in conjunction with the accounting policies and other disclosures as set forth in the notes to the condensed consolidated financial statements in the Company's 2019 Form 10-K and the Current Report on Form 8-K filed May 7, 2020, which provides retrospectively revised historical financial information to correspond with the Company's current segment structure. Interim results are not necessarily indicative of results for a full year. In the opinion of management, the accompanying unaudited interim condensed consolidated financial statements contain all material adjustments consisting of normal and recurring accruals necessary to present fairly the Company's consolidated financial position as of September 30, 2020, and the results of operations, comprehensive income, cash flows and statements of stockholders' equity for the three and nine months ended September 30, 2020 and 2019. Segments As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources. The Company's businesses are segregated as follows: • Texas, which includes all activity related to customer, plant and market operations in Texas; • East, which includes the remaining activity related to customer operations and all activity related to plant and market operations in the East; • West/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West, (ii) activity related to the Cottonwood power plant that was sold to Cleco on February 4, 2019 and is being leased back until 2025, (iii) the remaining renewables activity, including the Company’s equity method investments in Ivanpah Master Holdings, LLC and Agua Caliente, the remaining Home Solar assets and the NFL stadium solar generating assets, and (iv) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and • Corporate activities. All affected disclosures have been recast to reflect these changes for all periods presented. For further discussion of segment reporting, refer to Note 14, Segment Reporting . COVID-19 In March 2020, the World Health Organization categorized COVID-19 as a pandemic and the President of the United States declared the COVID-19 outbreak a national emergency. Electricity was deemed a 'critical and essential business operation' under various state and federal governmental COVID-19 mandates. NRG had activated its Crisis Management Team ("CMT") in January 2020 to proactively manage the Company's response to the impacts of COVID-19. NRG continues to remain focused on protecting the health and well-being of its employees, while supporting its customers and the communities in which it operates and assuring the continuity of its operations. In June 2020, summer-critical office employees returned to the offices and safety protocols were successfully implemented. The Company will continue to evaluate additional return to normal work operations on a location-by-location basis as COVID-19 conditions evolve. The Company continues to maintain certain restrictions on business travel and face-to-face sales channels, remote work practices remain in place and there are enhanced cleaning and hygiene protocols in all of its facilities. In addition, select essential employees and contractors are continuing to report to plant and certain office locations. The Company also continues to require pre-entry screening, including temperature checks, separation of work crews, additional personal protective equipment for employees and contractors when social distancing cannot be maintained, and a ban on all non-essential visitors. The Company has not experienced any material disruptions in its ability to continue its business operations to date. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. Reclassifications Certain prior year amounts have been reclassified for comparative purposes.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Other Balance Sheet Information The following table presents the accumulated depreciation included in property, plant and equipment, net and accumulated amortization included in intangible assets, net: (In millions) September 30, 2020 December 31, 2019 Property, plant and equipment accumulated depreciation $ 1,901 $ 1,752 Intangible assets accumulated amortization 1,314 1,262 Credit Losses On January 1, 2020, the Company adopted ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , or ASU No. 2016-13, using the modified retrospective approach. Following the adoption of the new standard, the Company’s process of estimating expected credit losses remains materially consistent with its historical practice. Information prior to January 1, 2020, which was previously referred to as the allowance and provision for bad debt, has not been restated and continues to be reported under the accounting standards in effect for that period. Retail trade receivables are reported on the balance sheet net of the allowance for credit losses. The Company accrues an allowance for current expected credit losses based on (i) estimates of uncollectible revenues by analyzing accounts receivable aging and current and reasonable forecasts of expected economic factors including, but not limited to, unemployment rates and weather-related events, (ii) historical collections and delinquencies, and (iii) counterparty credit ratings for commercial and industrial customers. The following table represents the activity in the allowance for credit losses for the three and nine months ended September 30, 2020: (In millions) Three months ended September 30, 2020 Nine months ended September 30, 2020 Beginning balance $ 47 $ 43 Provision for credit losses 26 74 Write-offs (19) (71) Recoveries collected 3 11 Ending balance $ 57 $ 57 Restricted Cash The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows: (In millions) September 30, 2020 December 31, 2019 Cash and cash equivalents $ 697 $ 345 Funds deposited by counterparties 15 32 Restricted cash 6 8 Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows $ 718 $ 385 Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its counterparties. Some amounts are segregated into separate accounts that are not contractually restricted but, based on the Company's intention, are not available for the payment of general corporate obligations. Depending on market fluctuations and the settlement of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance sheet, with an offsetting liability for this cash collateral received within current liabilities. Restricted cash consists primarily of funds held within the Company's projects that are restricted for specific uses. Pension Plan Contributions In the Company's 2019 Form 10-K, NRG had anticipated making contributions of $56 million to its pension plans in 2020. Cash contributions of $12 million were made during the nine months ended September 30, 2020 and the remaining planned contributions for 2020 were satisfied by available pre-funded pension balances (previous contributions in excess of required pension contributions). No additional contributions are planned in the fourth quarter of 2020. Recent Accounting Developments - Guidance Adopted in 2020 ASU 2018-17 — In October 2018, the FASB issued ASU No. 2018-17, Consolidations (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities , or ASU No. 2018-17, in response to stakeholders’ observations that Topic 810, Consolidations , could be improved thereby improving general purpose financial reporting. Specifically, ASU No. 2018-17 requires application of the variable interest entity (VIE) guidance to private companies under common control and consideration of indirect interest held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. All entities are required to apply the amendments retrospectively. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position. ASU 2018-15 — In August 2018, the FASB issued ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in Cloud Computing Arrangement That Is a Service Contract , or ASU No. 2018-15. The amendments in ASU No. 2018-15 align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing costs incurred to develop or obtain internal-use software (and hosting arrangement that include an internal-use software license). The amendment also requires the customer to amortize the capitalized implementation costs of a hosting arrangement that is a service contract over the term of the hosting arrangement. The Company adopted the amendments effective January 1, 2020 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position. ASU 2018-13 — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirement for Fair value Measurement) , or ASU No. 2018-13. The amendments in ASU No. 2018-13 eliminate such disclosures as the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and add new disclosure requirements for Level 3 measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Certain disclosures in ASU No. 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company adopted the amendments effective January 1, 2020. As the amendments contemplates changes in disclosures only, it did not have an impact on the Company's results of operations, cash flows, or statement of financial position. ASU 2016-13 — In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Statements, or ASU No. 2016-13, which was further amended through various updates issued by the FASB thereafter. The guidance in ASU No. 2016-13 provides a new model for recognizing credit losses on financial assets carried at amortized cost using an estimate of expected credit losses, instead of the "incurred loss" methodology previously required for recognizing credit losses that delayed recognition until it was probable that a loss was incurred. The estimate of expected credit losses is to be based on consideration of past events, current conditions and reasonable and supportable forecasts of future conditions. The Company adopted the standard and its subsequent corresponding updates effective January 1, 2020 using the modified retrospective approach. Results for the reporting periods after January 1, 2020 are presented under Topic 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company's adoption of Topic 326 did not have a material impact on the Company's results of operations, cash flows, or statement of financial position. Recent Accounting Developments - Guidance Not Yet Adopted ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40) , or ASU No. 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years. Early adoption is permitted in fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company is currently in the process of assessing the impact of this guidance on the consolidated financial statements and disclosures related to earnings per share. ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes,

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Performance Obligations As of September 30, 2020, estimated future fixed fee performance obligations are $188 million for the remaining three months of fiscal year 2020, and $648 million, $281 million, $43 million and $8 million for the fiscal years 2021, 2022, 2023 and 2024, respectively. These performance obligations are for cleared auction MWs in the PJM, ISO-NE, NYISO and MISO capacity auctions and are subject to penalties for non-performance. Disaggregated Revenues The following tables represent the Company’s disaggregation of revenue from contracts with customers for the three and nine months ended September 30, 2020 and 2019: Three months ended September 30, 2020 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 1,633 $ 354 $ — $ — $ 1,987 Business Solutions 288 27 — — 315 Total retail revenue 1,921 381 — — 2,302 Energy revenue (a) 11 93 117 1 222 Capacity revenue (a) — 158 16 — 174 Mark-to-market for economic hedging activities (b) 1 43 (10) 5 39 Other revenue (a) 59 18 (1) (4) 72 Total operating revenue 1,992 693 122 2 2,809 Less: Lease revenue — — 5 — 5 Less: Realized and unrealized ASC 815 revenue 10 115 (10) 5 120 Total revenue from contracts with customers $ 1,982 $ 578 $ 127 $ (3) $ 2,684 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ — $ 23 $ 13 $ (1) $ 35 Capacity revenue — 49 — — 49 Other revenue 9 — (13) 1 (3) (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Three months ended September 30, 2019 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 1,735 $ 337 $ — $ — $ 2,072 Business Solutions 397 19 — — 416 Total retail revenue 2,132 356 — — 2,488 Energy revenue (a) 211 109 107 (1) 426 Capacity revenue (a) — 185 9 — 194 Mark-to-market for economic hedging activities (b) (213) 12 (9) — (210) Other revenue (a) 78 17 4 (1) 98 Total operating revenue 2,208 679 111 (2) 2,996 Less: Lease revenue — — 5 — 5 Less: Realized and unrealized ASC 815 revenue 420 69 — (2) 487 Total revenue from contracts with customers $ 1,788 $ 610 $ 106 $ — $ 2,504 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ 613 $ 20 $ 21 $ (2) $ 652 Capacity revenue — 34 — — 34 Other revenue 20 3 (12) — 11 (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Nine months ended September 30, 2020 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 3,938 $ 992 $ — $ (1) $ 4,929 Business Solutions 796 70 — — 866 Total retail revenue 4,734 1,062 — (1) 5,795 Energy revenue (a) 21 157 252 (1) 429 Capacity revenue (a) — 471 47 — 518 Mark-to-market for economic hedging activities (b) 1 63 6 8 78 Other revenue (a) 172 45 36 (7) 246 Total operating revenue 4,928 1,798 341 (1) 7,066 Less: Lease revenue — 1 14 — 15 Less: Realized and unrealized ASC 815 revenue 24 239 50 5 318 Total revenue from contracts with customers $ 4,904 $ 1,558 $ 277 $ (6) $ 6,733 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ — $ 60 $ 42 $ (3) $ 99 Capacity revenue — 114 — — 114 Other revenue 23 2 2 — 27 (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Nine months ended September 30, 2019 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 3,891 $ 892 $ — $ (3) $ 4,780 Business Solutions 927 55 — — 982 Total retail revenue 4,818 947 — (3) 5,762 Energy revenue (a) 452 283 217 — 952 Capacity revenue (a) — 524 27 — 551 Mark-to-market for economic hedging activities (b) 28 13 11 (1) 51 Other revenue (a) 213 45 55 (3) 310 Total operating revenue 5,511 1,812 310 (7) 7,626 Less: Lease revenue — 1 14 — 15 Less: Realized and unrealized ASC 815 revenue 1,314 187 46 (2) 1,545 Total revenue from contracts with customers $ 4,197 $ 1,624 $ 250 $ (5) $ 6,066 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ 1,239 $ 87 $ 28 $ (2) $ 1,352 Capacity revenue — 81 — 1 82 Other revenue 47 6 7 — 60 (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Contract Balances The following table reflects the contract assets and liabilities included in the Company’s balance sheet as of September 30, 2020 and December 31, 2019: (In millions) September 30, 2020 December 31, 2019 Deferred customer acquisition costs $ 122 $ 133 Accounts receivable, net - Contracts with customers 1,084 1,002 Accounts receivable, net - Derivative instruments 37 18 Accounts receivable, net - Affiliate 5 5 Total accounts receivable, net $ 1,126 $ 1,025 Unbilled revenues (included within Accounts receivable, net - Contracts with customers) $ 411 $ 402 Deferred revenues (a) 60 82 (a) Deferred revenues from contracts with customers for the three months ended September 30, 2020 and the year ended December 31, 2019 were approximately $31 million and $24 million, respectively The revenue recognized from contracts with customers during both the nine months ended September 30, 2020 and 2019 relating to the deferred revenue balance at the beginning of each period was $13 million. The revenue recognized during the three months ended September 30, 2020 and 2019 relating to the deferred revenue balance at the beginning of each period was $31 million and $21 million, respectively. The change in deferred revenue balances during the three and nine months ended September 30, 2020 and 2019 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.

Acquisitions, Discontinued Oper

Acquisitions, Discontinued Operations and Dispositions	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Acquisitions, Discontinued Operations and Dispositions	Acquisitions, Discontinued Operations and Dispositions Acquisitions Direct Energy Acquisition On July 24, 2020, the Company entered into a definitive purchase agreement with Centrica to acquire Direct Energy, a North American subsidiary of Centrica (the "Purchase Agreement"). Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 6 Canadian provinces. The acquisition will add over 3 million customers to NRG's business and build on and complement its integrated model, enabling better matching of power generation with customer demand. It will also broaden the Company's presence in the Northeast and into states and locales where it does not currently operate, supporting NRG's objective to diversify its business. The Company will pay an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment, including a working capital adjustment. The Company expects to fund the purchase price using a combination of cash on hand and approximately $3 billion in newly-issued secured and unsecured corporate debt. The Company also expects to increase its collective collateral facilities by $3.5 billion through a combination of new letter of credit facilities and increases to its existing Revolving Credit Facility. Through November 5, 2020, in preparation for the additional liquidity requirements related to the acquisition, the Company (i) amended its Revolving Credit Facility to, among other things, increase the existing revolving commitments in an aggregate amount of $802 million, and provide for a new tranche of revolving commitments in an aggregate amount of $273 million, as further discussed in Note 10, Long-term Debt, (ii) amended its credit default swap facility agreement to issue letters of credit to, among other things, increase the size of the facility to allow for the issuance of an additional $87 million of letters of credit, as further discussed in Note 10, Long-term Debt, (iii) entered into a revolving accounts receivable financing facility (the “ Receivables Facility”) for an amount up to $750 million, subject to adjustments on a seasonal basis, with issuers of asset-backed commercial paper and commercial banks, as further discussed in Note 9, Receivables Securitization and Repurchase Facility, (iv) entered into an uncommitted repurchase facility related to the Receivables Facility, under which the Company can borrow up to $75 million, as further discussed in Note 9, Receivables Securitization and Repurchase Facility, and (v) entered into $1.6 billion of interest rate hedges associated with anticipated financing needs, as further discussed in Note 20, Subsequent Events. The shareholders of Centrica approved the acquisition on August 20, 2020. The transaction has received approvals under the Canadian Competition Act and early termination of the waiting period under the HSR Act has been granted. The transaction remains subject to customary closing conditions, including the receipt of approval under the Federal Power Act. The acquisition is targeted to close by December 31, 2020. There are no assurances that the conditions to the consummation of the acquisition of Direct Energy will be satisfied or that the acquisition of Direct Energy will be consummated on the terms agreed to, or at all. Midwest Generation Lease Purchase On September 29, 2020, Midwest Generation acquired all of the ownership interests in the Powerton facility and Units 7 and 8 of the Joliet facility, which were being leased through 2034 and 2030, respectively, for approximately $260 million. The purchase was initially funded with cash-on-hand. The Company anticipates drawing on its Revolving Credit Facility in an amount equal to the previously existing operating lease liability of $148 million before December 31, 2020. Stream Energy Acquisition On August 1, 2019, the Company acquired Stream Energy's retail electricity and natural gas operating in 9 states and Washington, D.C. for $329 million, including working capital and other adjustments of approximately $29 million. The acquisition increased NRG's retail portfolio by approximately 600,000 RCEs or 450,000 customers. The purchase price was allocated as follows: (In millions) Account receivable $ 98 Accounts payable (73) Other net current and non-current working capital 5 Marketing partnership 154 Customer relationships 85 Trade name 28 Other intangible assets 26 Goodwill (a) 6 Stream Purchase Price $ 329 (a) Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes Discontinued Operations Sale of South Central Portfolio On February 4, 2019, the Company completed the sale of the South Central Portfolio to Cleco for cash consideration of $1 billion excluding working capital and other adjustments. The Company concluded that the divested business met the criteria for discontinued operations as of December 31, 2018, as the disposition represented a strategic shift in the business in which NRG operates and the criteria for held-for-sale were met. As such, all prior period results for the operations of the South Central Portfolio, except for the Cottonwood facility as discussed below, were reclassified as discontinued operations at December 31, 2018. In connection with the transaction, NRG also entered into a transition services agreement to provide certain corporate services to the divested business. The South Central Portfolio includes the 1,153 MW Cottonwood natural gas generating facility. Upon the closing of the sale of the South Central Portfolio, NRG entered into an agreement with Cleco to leaseback the Cottonwood facility through 2025. Due to its continuing involvement with the Cottonwood facility, NRG did not use held-for-sale or discontinued operations treatment in accounting for the Cottonwood facility. Summarized results of the South Central Portfolio discontinued operations were as follows: Three months ended Nine months ended (In millions) September 30, 2019 September 30, 2019 Operating revenues $ — $ 31 Operating costs and expenses — (23) Gain from operations of discontinued components — 8 (Loss)/Gain on disposal of discontinued operations, net of tax (1) 27 (Loss)/Gain from discontinued operations, including disposal, net of tax $ (1) $ 35 Carlsbad On February 6, 2018, NRG entered into an agreement with NRG Yield and GIP to sell 100% of its membership interests in Carlsbad Energy Holdings LLC, which owns the Carlsbad project, for $385 million of cash consideration, excluding working capital adjustments. The primary condition to close the Carlsbad transaction was the completion of the sale of NRG Yield and the Renewables Platform. At the time of the sale of NRG Yield and the Renewables Platform in August 2018, the Company concluded that the Carlsbad project met the criteria for discontinued operations and accordingly, all prior period results for Carlsbad were reclassified as discontinued operations. The transaction closed on February 27, 2019. Carlsbad continues to have a ground lease and easement agreement with NRG with an initial term ending in 2039 and two, ten Summarized results of Carlsbad discontinued operations were as follows: Three months ended Nine months ended (In millions) September 30, 2019 September 30, 2019 Operating revenues $ — $ 19 Operating costs and expenses — (9) Other expenses — (5) Gain from discontinued operations, net of tax — 5 (Loss)/gain on disposal of discontinued operations, net of tax (1) 330 Other Commitments, Indemnification and Fees — 27 (Loss)/gain on disposal of discontinued operations, net of tax (1) 357 (Loss)/gain from discontinued operations, including disposal, net of tax $ (1) $ 362 GenOn On June 14, 2017, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Texas Bankruptcy Court. As a result of the bankruptcy filings, NRG concluded that it no longer controlled GenOn as it was subject to the control of the Texas Bankruptcy Court; and accordingly, NRG deconsolidated GenOn and its subsidiaries for financial reporting purposes as of such date. Summarized results of GenOn discontinued operations were as follows: Nine months ended (In millions) September 30, 2019 Gain from discontinued operations, net of tax $ 2 Dispositions The Company completed other asset sales for cash proceeds of $15 million and $22 million during the nine months ended September 30, 2020 and 2019, respectively.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments For cash and cash equivalents, funds deposited by counterparties, restricted cash, accounts and other receivables, accounts payable, and cash collateral paid and received in support of energy risk management activities, the carrying amounts approximate fair values because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy. The estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value are as follows: September 30, 2020 December 31, 2019 (In millions) Carrying Amount Fair Value Carrying Amount Fair Value Assets: Notes receivable $ 10 $ 7 $ 11 $ 8 Liabilities: Long-term debt, including current portion (a) 5,854 6,309 5,956 6,504 (a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt in the Company's consolidated balance sheets The fair value of the Company's publicly-traded long-term debt is based on quoted market prices and is classified as Level 2 within the fair value hierarchy. The fair value of debt securities, non-publicly traded long-term debt and certain notes receivable of the Company are based on expected future cash flows discounted at market interest rates or current interest rates for similar instruments with equivalent credit quality and are classified as Level 3 within the fair value hierarchy. The following table presents the level within the fair value hierarchy for long-term debt, including current portion, as of September 30, 2020 and December 31, 2019: September 30, 2020 December 31, 2019 (In millions) Level 2 Level 3 Level 2 Level 3 Long-term debt, including current portion $ 6,305 $ 4 $ 6,388 $ 116 Recurring Fair Value Measurements Debt securities, equity securities, and trust fund investments, which are comprised of various U.S. debt and equity securities, and derivative assets and liabilities, are carried at fair market value. The following tables present assets and liabilities measured and recorded at fair value on the Company's condensed consolidated balance sheets on a recurring basis and their level within the fair value hierarchy: September 30, 2020 (In millions) Total Level 1 Level 2 Level 3 Investments in securities (classified within other current and non-current assets) $ 15 $ — $ 15 $ — Nuclear trust fund investments: Cash and cash equivalents 25 25 — — U.S. government and federal agency obligations 49 48 1 — Federal agency mortgage-backed securities 92 — 92 — Commercial mortgage-backed securities 38 — 38 — Corporate debt securities 144 — 144 — Equity securities 402 402 — — Foreign government fixed income securities 6 — 6 — Other trust fund investments: U.S. government and federal agency obligations 1 1 — — Derivative assets: Commodity contracts 893 74 592 227 Measured using net asset value practical expedient: Equity securities — nuclear trust fund investments 72 Equity securities 7 Total assets $ 1,744 $ 550 $ 888 $ 227 Derivative liabilities: Commodity contracts $ 813 $ 70 $ 568 $ 175 Total liabilities $ 813 $ 70 $ 568 $ 175 December 31, 2019 (In millions) Total Level 1 Level 2 Level 3 Investments in securities (classified within other current and non-current assets) $ 20 $ — $ 20 $ — Nuclear trust fund investments: Cash and cash equivalents 17 17 — — U.S. government and federal agency obligations 68 68 — — Federal agency mortgage-backed securities 100 — 100 — Commercial mortgage-backed securities 29 — 29 — Corporate debt securities 109 — 109 — Equity securities 388 388 — — Foreign government fixed income securities 5 — 5 — Other trust fund investments: U.S. government and federal agency obligations 1 1 — — Derivative assets: Commodity contracts 1,170 84 893 193 Measured using net asset value practical expedient: Equity securities — nuclear trust fund investments 78 Equity securities 8 Total assets $ 1,993 $ 558 $ 1,156 $ 193 Derivative liabilities: Commodity contracts $ 1,103 $ 143 $ 805 $ 155 Total liabilities $ 1,103 $ 143 $ 805 $ 155 The following tables reconcile, for the three and nine months ended September 30, 2020 and 2019, the beginning and ending balances for financial instruments that are recognized at fair value in the condensed consolidated financial statements, using significant unobservable inputs: Fair Value Measurement Using Significant Unobservable Inputs (Level 3) Three months ended September 30, 2020 Nine months ended September 30, 2020 (In millions) Derivatives (a) Derivatives (a) Beginning balance $ 152 $ 38 Total (losses) realized/unrealized— included in earnings (92) (18) Purchases (10) 6 Transfers into Level 3 (b) (11) 22 Transfers out of Level 3 (b) 13 4 Ending balance $ 52 $ 52 Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end $ 23 $ 50 (a) Consists of derivative assets and liabilities, net (b) Transfers into/out of Level 3 are related to the availability of external broker quotes and are valued as of the end of the reporting period. All transfers in/out are with Level 2 Fair Value Measurement Using Significant Unobservable Inputs (Level 3) Three months ended September 30, 2019 Nine months ended September 30, 2019 (In millions) Debt Securities Derivatives (a) Total Debt Securities Derivatives (a) Total Beginning balance $ 19 $ 97 $ 116 $ 19 $ 20 $ 39 Contracts added from acquisitions — (2) (2) — (3) (3) Total (losses)/gains realized/unrealized: Included in earnings — (18) (18) 1 (45) (44) Included in OCI (14) — (14) (14) — (14) Cash received — — — (1) — (1) Purchases — 38 38 — 26 26 Transfers into Level 3 (b) — (126) (126) — 4 4 Transfers out of Level 3 (b) — 24 24 — 11 11 Ending balance $ 5 $ 13 $ 18 $ 5 $ 13 $ 18 Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end — 44 44 1 13 14 (a) Consists of derivative assets and liabilities, net (b) Transfers into/out of Level 3 are related to the availability of external broker quotes and are valued as of the end of the reporting period. All transfers in/out are with Level 2 Derivative Fair Value Measurements A portion of NRG's contracts are exchange-traded contracts with readily available quoted market prices. A majority of NRG's contracts are non-exchange-traded contracts valued using prices provided by external sources, primarily price quotations available through brokers or over-the-counter and on-line exchanges. The remainder of the assets and liabilities represent contracts for which external sources or observable market quotes are not available. These contracts are valued based on various valuation techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of the observable market data with similar characteristics. As of September 30, 2020, contracts valued with prices provided by models and other valuation techniques make up 25% of derivative assets and 22% of derivative liabilities. NRG's significant positions classified as Level 3 include physical and financial power executed in illiquid markets, as well as FTRs. The significant unobservable inputs used in developing fair value include illiquid power location pricing, which is derived as a basis to liquid locations. The basis spread is based on observable market data when available or derived from historic prices and forward market prices from similar observable markets when not available. For FTRs, NRG uses the most recent auction prices to derive the fair value. The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of September 30, 2020 and December 31, 2019: September 30, 2020 Fair Value Input/Range (In millions) Assets Liabilities Valuation Technique Significant Unobservable Input Low High Weighted Average Power Contracts $ 196 $ 167 Discounted Cash Flow Forward Market Price (per MWh) $ 10 $ 116 $ 24 FTRs 31 8 Discounted Cash Flow Auction Prices (per MWh) (50) 43 0 $ 227 $ 175 December 31, 2019 Fair Value Input/Range (In millions) Assets Liabilities Valuation Technique Significant Unobservable Input Low High Weighted Average Power Contracts $ 151 $ 139 Discounted Cash Flow Forward Market Price (per MWh) $ 8 $ 218 $ 24 FTRs 42 16 Discounted Cash Flow Auction Prices (per MWh) (105) 213 0 $ 193 $ 155 The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of September 30, 2020 and December 31, 2019: Significant Unobservable Input Position Change In Input Impact on Fair Value Measurement Forward Market Price Power Buy Increase/(Decrease) Higher/(Lower) Forward Market Price Power Sell Increase/(Decrease) Lower/(Higher) FTR Prices Buy Increase/(Decrease) Higher/(Lower) FTR Prices Sell Increase/(Decrease) Lower/(Higher) The fair value of each contract is discounted using a risk-free interest rate. In addition, the Company applies a credit reserve to reflect credit risk, which is calculated based on published default probabilities. As of September 30, 2020, the credit reserve resulted in a $1 million increase primarily within operating revenue. As of December 31, 2019, the credit reserve did not result in a significant change in fair value in operating revenue and cost of operations. Concentration of Credit Risk In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies , to the Company's 2019 Form 10-K, the following is a discussion of the concentration of credit risk for the Company's contractual obligations. Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. NRG is exposed to counterparty credit risk through various activities including wholesale sales, fuel purchases and retail supply arrangements, as well as retail customer credit risk through its retail load activities. Counterparty Credit Risk The Company's counterparty credit risk policies are disclosed in its 2019 Form 10-K. As of September 30, 2020, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, registered commodity exchanges and certain long-term agreements, was $232 million and NRG held collateral (cash and letters of credit) against those positions of $19 million, resulting in a net exposure of $214 million NRG periodically receives collateral from counterparties in excess of their exposure. Collateral amounts shown include such excess while net exposure shown excludes excess collateral received. Approximately 39% of the Company's exposure before collateral is expected to roll off by the end of 2021. Counterparty credit exposure is valued through observable market quotes and discounted at a risk free interest rate. The following tables highlight net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market and NPNS, and non-derivative transactions. The exposure is shown net of collateral held and includes amounts net of receivables or payables. Net Exposure (a)(b) Category by Industry Sector (% of Total) Utilities, energy merchants, marketers and other 88 % Financial institutions 12 Total as of September 30, 2020 100 % Net Exposure (a)(b) Category by Counterparty Credit Quality (% of Total) Investment grade 59 % Non-investment grade/non-rated 41 Total as of September 30, 2020 100 % (a) Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices (b) The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long-term contracts The Company currently has $45 million of exposure to two wholesale counterparties in excess of 10% of total net exposure discussed above as of September 30, 2020. Changes in hedge positions and market prices will affect credit exposure and counterparty concentration. Given the credit quality, diversification and term of the exposure in the portfolio, NRG does not anticipate a material impact on its financial position or results of operations from nonperformance by any of NRG's counterparties. RTOs and ISOs The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT, and includes credit policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s share of the overall market and are excluded from the above exposures. Exchange Traded Transactions The Company enters into commodity transactions on registered exchanges, notably ICE, NYMEX and Nodal. These clearinghouses act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity transactions have limited counterparty credit risk. Long-Term Contracts Counterparty credit exposure described above excludes credit risk exposure under certain long-term contracts, primarily solar PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Based on these valuation techniques, as of September 30, 2020, aggregate credit risk exposure managed by NRG to these counterparties was approximately $621 million for the next five years. Retail Customer Credit Risk The Company is exposed to retail credit risk through the Company's retail electricity providers, which serve C&I customers and the Mass market. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses may result from both non-payment of customer accounts receivable and the loss of in-the-money forward value. The Company manages retail credit risk through the use of established credit policies that include monitoring of the portfolio and the use of credit mitigation measures such as deposits or prepayment arrangements. As of September 30, 2020, the Company's retail customer credit exposure to C&I and Mass customers was diversified across many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its residential solar customers. Current economic conditions may affect the Company's customers' ability to pay bills in a timely manner, which could increase customer delinquencies and may lead to an increase in credit losses.

Nuclear Decommissioning Trust F

Nuclear Decommissioning Trust Fund	9 Months Ended
	Sep. 30, 2020
Regulated Operations [Abstract]
Nuclear Decommissioning Trust Fund	Nuclear Decommissioning Trust Fund NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of its 44% interest in STP, are comprised of securities classified as available-for-sale and recorded at fair value based on actively quoted market prices. NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations , because the Company's nuclear decommissioning activities are subject to approval by the PUCT with regulated rates that are designed to recover all decommissioning costs and that can be charged to and collected from the ratepayers per PUCT mandate. Since the Company is in compliance with PUCT rules and regulations regarding decommissioning trusts and the cost of decommissioning is the responsibility of the Texas ratepayers, not NRG, all realized and unrealized gains or losses (including other-than-temporary impairments) related to the Nuclear Decommissioning Trust Fund are recorded to the Nuclear Decommissioning Trust liability and are not included in net income or accumulated OCI, consistent with regulatory treatment. The following table summarizes the aggregate fair values and unrealized gains and losses for the securities held in the trust funds, as well as information about the contractual maturities of those securities. As of September 30, 2020 As of December 31, 2019 (In millions, except maturities) Fair Value Unrealized Gains Unrealized Losses Weighted-average Maturities (In years) Fair Value Unrealized Gains Unrealized Losses Weighted-average Maturities (In years) Cash and cash equivalents $ 25 $ — $ — — $ 17 $ — $ — — U.S. government and federal agency obligations 49 7 — 12 68 4 — 11 Federal agency mortgage-backed securities 92 4 — 24 100 3 — 24 Commercial mortgage-backed securities 38 2 — 28 29 1 1 24 Corporate debt securities 144 12 — 12 109 6 — 11 Equity securities 474 321 1 — 466 324 — — Foreign government fixed income securities 6 1 — 10 5 — — 10 Total $ 828 $ 347 $ 1 $ 794 $ 338 $ 1 The following table summarizes proceeds from sales of available-for-sale securities held in the trust funds and the related realized gains and losses from these sales. The cost of securities sold is determined on the specific identification method. Nine months ended September 30, (In millions) 2020 2019 Realized gains $ 22 $ 8 Realized losses (11) (7) Proceeds from sale of securities 318 271

Accounting for Derivative Instr

Accounting for Derivative Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Accounting for Derivative Instruments and Hedging Activities	Accounting for Derivative Instruments and Hedging Activities Energy-Related Commodities As of September 30, 2020, NRG had energy-related derivative instruments extending through 2034. The Company marks these derivatives to market through the statement of operations. NRG has executed power purchase agreements extending through 2037 that qualified for the NPNS exception and were therefore exempt from fair value accounting treatment. Interest Rate Swaps NRG was exposed to changes in interest rates through the Company's issuance of variable rate debt. In order to manage the Company's interest rate risk, NRG entered into interest rate swap agreements. As of September 30, 2020, NRG had no interest rate derivative instruments as a result of the early termination of such contracts in connection with the repayment of the 2023 Term Loan Facility during the second quarter of 2019. As of November 5, 2020, the Company entered into $1.6 billion of interest rate hedges associated with anticipated financing needs. Volumetric Underlying Derivative Transactions The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by category, excluding those derivatives that qualified for the NPNS exception, as of September 30, 2020 and December 31, 2019. Option contracts are reflected using delta volume. Delta volume equals the notional volume of an option adjusted for the probability that the option will be in-the-money at its expiration date. Total Volume (In millions) Category Units September 30, 2020 December 31, 2019 Emissions Short Ton 1 3 Renewable Energy Certificates Certificates 3 1 Coal Short Ton 4 10 Natural Gas MMBtu (264) (181) Power MWh 51 38 Capacity MW/Day (1) (1) Fair Value of Derivative Instruments The following table summarizes the fair value within the derivative instrument valuation on the balance sheets: Fair Value Derivative Assets Derivative Liabilities (In millions) September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 Derivatives Not Designated as Cash Flow or Fair Value Hedges: Commodity contracts current $ 578 $ 860 $ 495 $ 781 Commodity contracts long-term 315 310 318 322 Total Derivatives Not Designated as Cash Flow or Fair Value Hedges $ 893 $ 1,170 $ 813 $ 1,103 The Company has elected to present derivative assets and liabilities on the balance sheet on a trade-by-trade basis and does not offset amounts at the counterparty master agreement level. In addition, collateral received or paid on the Company's derivative assets or liabilities are recorded on a separate line item on the balance sheet. The following table summarizes the offsetting of derivatives by counterparty master agreement level and collateral received or paid: Gross Amounts Not Offset in the Statement of Financial Position (In millions) Gross Amounts of Recognized Assets / Liabilities Derivative Instruments Cash Collateral (Held) / Posted Net Amount As of September 30, 2020 Commodity contracts: Derivative assets $ 893 $ (738) $ (1) $ 154 Derivative liabilities (813) 738 — (75) Total commodity contracts $ 80 $ — $ (1) $ 79 Gross Amounts Not Offset in the Statement of Financial Position (In millions) Gross Amounts of Recognized Assets / Liabilities Derivative Instruments Cash Collateral (Held) / Posted Net Amount As of December 31, 2019 Commodity contracts: Derivative assets $ 1,170 $ (909) $ (7) $ 254 Derivative liabilities (1,103) 909 73 (121) Total commodity contracts $ 67 $ — $ 66 $ 133 Impact of Derivative Instruments on the Statements of Operations Unrealized gains and losses associated with changes in the fair value of derivative instruments not accounted for as cash flow and fair value hedges are reflected in current period results of operations. The following table summarizes the pre-tax effects of economic hedges that have not been designated as cash flow hedges or fair value hedges and trading activity on the Company's statement of operations. The effect of commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense. (In millions) Three months ended September 30, Nine months ended September 30, Unrealized mark-to-market results 2020 2019 2020 2019 Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges $ (101) $ (118) $ (62) $ (88) Reversal of acquired (gain)/loss positions related to economic hedges (2) (3) 2 (4) Net unrealized (losses)/gains on open positions related to economic hedges (15) 57 73 69 Total unrealized mark-to-market (losses)/gains for economic hedging activities (118) (64) 13 (23) Reversal of previously recognized unrealized (gains) on settled positions related to trading activity (7) (1) (14) (8) Net unrealized gains/(losses) on open positions related to trading activity 2 (3) 19 23 Total unrealized mark-to-market (losses)/gains for trading activity (5) (4) 5 15 Total unrealized (losses)/gains $ (123) $ (68) $ 18 $ (8) Three months ended September 30, Nine months ended September 30, (In millions) 2020 2019 2020 2019 Unrealized gains/(losses) included in operating revenues $ 34 $ (214) $ 83 $ 66 Unrealized (losses)/gains included in cost of operations (157) 146 (65) (74) Total impact to statement of operations — energy commodities $ (123) $ (68) $ 18 $ (8) Total impact to statement of operations — interest rate contracts $ — $ — $ — $ (38) The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date. The roll-off amounts were offset by realized gains or losses at the settled prices and are reflected in operating revenue or cost of operations during the same period. For the nine months ended September 30, 2020, the $73 million unrealized gain from open economic hedge positions was primarily the result of an increase in value of forward positions as a result of decreases in New York capacity and power prices, as well as increases in ERCOT power prices. For the nine months ended September 30, 2019, the $69 million unrealized gain from open economic hedge positions was primarily the result of an increase in value of forward purchases of ERCOT heat rate due to ERCOT heat rate expansion. Credit Risk Related Contingent Features Certain of the Company's hedging agreements contain provisions that require the Company to post additional collateral if the counterparty determines that there has been deterioration in credit quality, generally termed “adequate assurance” under the agreements, or require the Company to post additional collateral if there were a downgrade in the Company's credit rating. The collateral required for contracts with adequate assurance clauses that are in a net liability position as of September 30, 2020 was $35 million. The Company is also party to certain marginable agreements under which it has net liability position, but the counterparty has not called for the collateral due, which was $8 million as of September 30, 2020. If called for by the counterparty, $3 million of additional collateral would be required for all contracts with credit rating contingent features as of September 30, 2020. See Note 5, Fair Value of Financial Instruments , for discussion regarding concentration of credit risk.

Impairments

Impairments	9 Months Ended
	Sep. 30, 2020
Property, Plant and Equipment [Abstract]
Impairments	Impairments 2020 Impairment Losses Home Solar — During the third quarter of 2020, the Company concluded its Home Solar business was held for sale as a result of advanced negotiations to sell the business. NRG recorded impairment losses of $29 million in the West/Other segment to adjust the carrying amount of the assets and liabilities to fair market value based on indicative sale prices. As of September 30, 2020, there were $88 million of other non-current assets and $44 million of other non-current liabilities classified as held for sale. Petra Nova Parish Holdings — During the first quarter of 2020, due to the decline in oil prices, NRG determined that the carrying amount of the Company’s equity method investment exceeded the fair value of the investment and that the decline is considered to be other-than-temporary. In determining the fair value, the Company utilized an income approach to estimate future project cash flows. The Company recorded an impairment loss of $18 million in the Texas segment, which included the anticipated drawdown of the $12 million letter of credit posted in September 2019 to cover certain project debt reserve requirements. 2019 Impairment Losses Petra Nova Parish Holdings — During the third quarter of 2019, NRG contributed $95 million in cash to Petra Nova and posted a $12 million letter of credit to cover certain project debt reserve requirements. The cash portion of the contribution was used by Petra Nova to prepay a significant portion of the project debt. As a result, the previously disclosed guarantee of up to $124 million related to the project level debt provided by NRG was canceled and the remaining project debt has now become non-recourse to NRG. In relation to this contribution, the Company evaluated the project for impairment and determined that the carrying amount of the Company's equity method investment exceeded the fair value of the investment and that the decline is considered to be other-than-temporary. In determining the fair value, the Company utilized an income approach and considered project specific assumptions for the estimated future project cash flows. The Company measured the impairments loss as the difference between the carrying amount and the fair value of the investment and recorded an impairment loss of $101 million. Other Impairments — During the nine months ended September 30, 2019, the Company recorded $7 million of impairment losses of cost investments and intangible assets.

Long-term Debt

Long-term Debt	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-term Debt	Long-term Debt Long-term debt consisted of the following: (In millions, except rates) September 30, 2020 December 31, 2019 Interest rate % Recourse debt: Senior Notes, due 2026 $ 1,000 $ 1,000 7.250 Senior Notes, due 2027 1,230 1,230 6.625 Senior Notes, due 2028 821 821 5.750 Senior Notes, due 2029 733 733 5.250 Convertible Senior Notes, due 2048 (a) 575 575 2.750 Senior Secured First Lien Notes, due 2024 600 600 3.750 Senior Secured First Lien Notes, due 2029 500 500 4.450 Revolving Credit Facility — 83 L + 1.750 Tax-exempt bonds 466 466 1.30 - 6.00 Subtotal recourse debt 5,925 6,008 Non-recourse debt: Other 4 34 various Subtotal all non-recourse debt 4 34 Subtotal long-term debt (including current maturities) 5,929 6,042 Less current maturities (3) (88) Less debt issuance costs (59) (65) Discounts (75) (86) Total long-term debt $ 5,792 $ 5,803 (a) As of the ex-dividend date of October 30, 2020, the Convertible Notes were convertible at a price of $46.24, which is equivalent to a conversion rate of approximately 21.62 shares of common stock per $1,000 principal amount Recourse Debt Revolving Credit Facility The Company had $83 million outstanding under its Revolving Credit Facility as of December 31, 2019, which was used to repay the outstanding indebtedness on the Agua Caliente Borrower 1 notes on a leverage-neutral basis during the fourth quarter of 2019. Due to market conditions, primarily as a result of COVID-19, the Company drew upon the facility in the first quarter of 2020 as a precaution and to proportionally increase cash on hand, and fully repaid the outstanding borrowings during the second quarter of 2020. During the third quarter of 2020, the Company amended its existing credit agreement to, among other things, (i) increase the existing revolving commitments in an aggregate amount of $802 million, and (ii) provide for a new tranche of revolving commitments in an aggregate amount of $273 million with a maturity date that is 30 months after the date of closing of the Direct Energy acquisition (the "Acquisition Closing Date"). The maturity date of the new revolving tranche of commitments may, upon request by the Company, and at the option of each applicable lender under the new tranche be extended by 12 months, but not beyond May 28, 2024, which is the maturity date of the existing and increased commitments. Other than with respect to the maturity date, the terms of all revolving commitments and loan made pursuant thereto are identical. The increase in the existing commitments, and the commitments with respect to the new tranche were effective on August 20, 2020 but will only become available upon the Acquisition Closing Date. For further discussion of the acquisition of Direct Energy see Note 4, Acquisitions, Discontinued Operations and Dispositions . Upon the Acquisition Closing Date, total revolving commitments available, subject to usage, under the amended credit agreement will be $3.7 billion. In addition, the amendment includes changes to, among other things, (i) permit the borrowing of up to the full amount of the revolving commitments in Canadian dollars, (ii) increase the swingline facility from $50 million to $100 million and provide a $10 million swingline facility in Canadian dollars, (iii) increase the credit facilities lien basket from the greater of $6 billion and 30% of total assets to the greater of $10 billion and 30% of total assets, (iv) increase the credit facilities debt basket from $6 billion to $10 billion, (v) increase the basket for securitization indebtedness from $750 million to $1.7 billion, (vi) provide an additional indebtedness basket equal to $600 million for certain liquidity facilities, and (vii) make certain other changes to the existing covenants and other provisions. Tax-Exempt Bonds On March 11, 2020, NRG issued $59 million in aggregate principal amount of NRG Dunkirk 2020 1.30% tax-exempt refinancing bonds due 2042 ("the Bonds"). The Bonds are guaranteed on a first-priority basis by each of NRG’s current and future subsidiaries that guarantee indebtedness under its credit agreement. The Bonds are secured by a first priority security interest in the same collateral that is pledged for the benefit of the lenders under NRG’s credit agreement, which consists of a substantial portion of the property and assets owned by NRG and the guarantors. The collateral securing the Bonds will, at the request of NRG, be released if NRG satisfies certain conditions, including receipt of an investment grade rating on its senior, unsecured debt securities from two out of the three rating agencies, subject to reversion if those rating agencies withdraw their investment grade rating of the Bonds or any of NRG’s senior, unsecured debt securities or downgrade such rating below investment grade. The Bonds are subject to mandatory tender and purchase on April 3, 2023 and have a final maturity date of April 1, 2042. NRG used the net proceeds from the offering to redeem the existing principal amount of outstanding Dunkirk Power LLC 5.875% tax exempt bonds due 2042. Non-Recourse Debt Credit Default Swap Facility On January 4, 2019, the Company entered into an $80 million credit agreement to issue letters of credit, which is currently supporting the Cottonwood facility lease. Annual fees of 1.33% on the facility were paid quarterly in advance. On August 13, 2020, the agreement was amended permitting the Company to increase the size of the facility and fees on the facility were adjusted to reflect the cost of the credit default swaps that serve as collateral for the facility. In order to increase the Company's collective collateral facilities in connection with the Direct Energy acquisition, NRG expanded the facility allowing for the issuance of an additional $50 million of letters of credit as of September 30, 2020. The Company has further expanded the facility to a total capacity of $167 million as of November 5, 2020. As of September 30, 2020, $80 million was issued under this facility.

Investments Accounted for Using

Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs	9 Months Ended
	Sep. 30, 2020
Variable Interest Entities Disclosure [Abstract]
Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs	Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs Entities that are not Consolidated NRG accounts for the Company's significant investments using the equity method of accounting. NRG's carrying value of equity investments can be impacted by a number of elements including impairments, unrealized gains and losses on derivatives and movements in foreign currency exchange rates. PG&E Bankruptcy — Agua Caliente and two of the three Ivanpah units are party to PPAs with PG&E. Both projects have project financing with the U.S. DOE. On January 29, 2019, PG&E Corp. and primary operating subsidiary utility PG&E filed for Chapter 11 relief in the California Bankruptcy Court. As a result of the bankruptcy filing, Agua Caliente and the two Ivanpah units were issued notices of events of default under their respective loan agreements. On September 9, 2019, PG&E filed a plan of reorganization that would assume all power purchase agreements, including those held by Agua Caliente and the two Ivanpah units. The California Bankruptcy Court approved the PG&E plan and the Confirmation Order was entered on June 19, 2020. The plan went effective, and PG&E emerged from bankruptcy on July 1, 2020. In July 2020, the U.S. DOE agreed to waivers of the bankruptcy-related events of default with respect to the Agua Caliente and Ivanpah projects. Subsequent to PG&E's emergence from bankruptcy, the Agua Caliente and the Ivanpah projects were allowed to resume distributions, and as of November 5, 2020, NRG received $50 million. NRG renewed its efforts to sell its 35% interest in Agua Caliente in July 2020, following PG&E's emergence from bankruptcy. NRG's maximum exposure to loss is limited to its equity investment, which was $197 million for Agua Caliente and $26 million for Ivanpah as of September 30, 2020. Variable Interest Entities that are Consolidated The Company has a controlling financial interest in certain entities that have been identified as VIEs under ASC 810. These arrangements are related to the Receivables Facility as further described in Note 9, Receivables Securitization and Repurchase Facility, and tax equity arrangements entered into with third-parties in order to finance the cost of solar energy systems under operating leases eligible for certain tax credits as further described in Note 2, Summary of Significant Accounting Policies, to the Company's 2019 Form 10-K. During the first quarter of 2020, the Company repurchased its partners' equity interest in one of the partnerships. As the Company retains control of its interest, the repurchase was recorded to equity. During the third quarter of 2020, the remaining Home Solar VIE was reclassified to held for sale as further discussed in Note 8, Impairments . The summarized financial information for the Company's consolidated VIEs consisted of the following: (In millions) September 30, 2020 December 31, 2019 Accounts receivable $ 887 $ — Other current assets 4 3 Net property, plant and equipment — 71 Other long-term assets 25 27 Total assets 916 101 Current liabilities 5 4 Long-term debt — 24 Other long-term liabilities 27 8 Total liabilities 32 36 Redeemable noncontrolling interest — 20 Net assets less noncontrolling interest $ 884 $ 45

Changes in Capital Structure

Changes in Capital Structure	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Changes in Capital Structure	Changes in Capital Structure As of September 30, 2020 and December 31, 2019, the Company had 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common stock issued and outstanding: Issued Treasury Outstanding Balance as of December 31, 2019 421,890,790 (172,894,601) 248,996,189 Shares issued under LTIPs 1,150,559 — 1,150,559 Shares issued under ESPP — 63,455 63,455 Shares repurchased — (6,062,783) (6,062,783) Balance as of September 30, 2020 423,041,349 (178,893,929) 244,147,420 Shares issued under LTIPs 5,400 — 5,400 Shares issued under ESPP — 68,014 68,014 Balance as of November 5, 2020 423,046,749 (178,825,915) 244,220,834 Share Repurchases The Company adopted, in the fourth quarter of 2019, a long-term capital allocation policy that targets allocating 50% of cash available for allocation generated each year to growth investments and 50% to be returned to shareholders. The return of capital to shareholders is expected to be completed through the increased dividend discussed below, supplemented by share repurchases. The following repurchases have been made during the nine months ended September 30, 2020: Total number of shares purchased Average price paid per share Amounts paid for shares purchased (in millions) 2020 repurchases: Repurchases 6,062,783 $ 197 Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances (a) 711,248 27 Total Share Repurchases during the nine months ended September 30, 2020 6,774,031 $33.05 $ 224 (a) NRG elected to pay cash for tax withholding on equity awards instead of issuing actual shares to management. The average price per equivalent shares withheld was $38.23 Employee Stock Purchase Plan In March 2019, the Company reopened participation in the ESPP, which allows eligible employees to elect to withhold between 1% and 10% of their eligible compensation to purchase shares of NRG common stock at the lesser of 95% of its market value on the offering date or 95% of the fair market value on the exercise date. An offering date will occur each April 1 and October 1. An exercise date will occur each September 30 and March 31. NRG Common Stock Dividends Beginning in the first quarter of 2020, NRG increased the annual dividend to $1.20 from $0.12 per share and expects to target an annual dividend growth rate of 7-9% per share in subsequent years. A quarterly dividend of $0.30 per share was paid on the Company's common stock during the three months ended September 30, 2020. On October 23, 2020, NRG declared a quarterly dividend on the Company's common stock of $0.30 per share, payable on November 16, 2020 to stockholders of record as of November 2, 2020.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic income per common share is computed by dividing net income by the weighted average number of common shares outstanding. Shares issued and treasury shares repurchased during the year are weighted for the portion of the year that they were outstanding. Diluted income per share is computed in a manner consistent with that of basic income per share while giving effect to all potentially dilutive common shares that were outstanding during the period. The outstanding non-qualified stock options, non-vested restricted stock units, market stock units, and relative performance stock units are not considered outstanding for purposes of computing basic income per share. However, these instruments are included in the denominator for purposes of computing diluted income per share under the treasury stock method. The Convertible Senior Notes are convertible, under certain circumstances, into the Company’s common stock, cash or combination thereof (at NRG's option). There is no dilutive effect for the Convertible Senior Notes due to the Company’s expectation to settle the liability in cash. The reconciliation of NRG's basic and diluted income per share is shown in the following table: Three months ended September 30, Nine months ended September 30, (In millions, except per share data) 2020 2019 2020 2019 Basic income per share: Net income available to common shareholders $ 249 $ 372 $ 683 $ 1,055 Weighted average number of common shares outstanding - basic 244 254 246 266 Income per weighted average common share — basic $ 1.02 $ 1.46 $ 2.78 $ 3.97 Diluted income per share: Net income available to common shareholders $ 249 $ 372 $ 683 $ 1,055 Weighted average number of common shares outstanding - basic 244 254 246 266 Incremental shares attributable to the issuance of equity compensation (treasury stock method) 1 2 1 2 Weighted average number of common shares outstanding - dilutive 245 256 247 268 Income per weighted average common share — diluted $ 1.02 $ 1.45 $ 2.77 $ 3.94

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020, as further described in Note 1, Nature of Business . The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources The financial information for the three and nine months ended September 30, 2019 was recast to reflect the current segment structure. In February 2019, as described in Note 4, Acquisitions, Discontinued Operations and Dispositions , the Company completed the sales of the South Central Portfolio and Carlsbad. The financial information for the three and nine months ended September 30, 2019 presented below reflects the presentation of these entities as discontinued operations within the corporate segment. NRG’s chief operating decision maker, its chief executive officer, evaluates the performance of its segments based on operational measures including adjusted earnings before interest, taxes, depreciation and amortization, or Adjusted EBITDA, free cash flow and allocation of capital, as well as net income/(loss). Three months ended September 30, 2020 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 1,992 $ 693 $ 122 $ — $ 2 $ 2,809 Depreciation and amortization 49 34 9 7 — 99 Impairment losses — — 29 — — 29 Equity in earnings of unconsolidated affiliates — — 36 — — 36 Income/(loss) from continuing operations before income taxes 288 149 17 (113) — 341 Income/(loss) from continuing operations 288 149 17 (205) — 249 Net income/(loss) attributable to NRG Energy, Inc $ 288 $ 149 $ 17 $ (205) $ — $ 249 Three months ended September 30, 2019 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 2,208 $ 679 $ 111 $ — $ (2) $ 2,996 Depreciation and amortization 45 31 8 7 — 91 Equity in earnings of unconsolidated affiliates 1 — 28 — — 29 Income/(loss) from continuing operations before income taxes 348 121 16 (106) 1 380 Income/(loss) from continuing operations 348 121 15 (111) 1 374 Loss from discontinued operations, net of tax — — — (2) — (2) Net income/(loss) 348 121 15 (113) 1 372 Net income/(loss) attributable to NRG Energy, Inc. $ 348 $ 121 $ 15 $ (113) $ 1 $ 372 Nine months ended September 30, 2020 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 4,928 $ 1,798 $ 341 $ — $ (1) $ 7,066 Depreciation and amortization 167 100 25 26 — 318 Impairment losses — — 29 — — 29 Gain on sale of assets — — 1 5 — 6 Equity in (losses)/earnings of unconsolidated affiliates (3) — 40 — — 37 Income/(loss) from continuing operations before income taxes 800 319 84 (304) — 899 Income/(loss) from continuing operations 800 319 83 (519) — 683 Net income/(loss) attributable to NRG Energy, Inc $ 800 $ 319 $ 83 $ (519) $ — $ 683 Nine months ended September 30, 2019 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 5,511 $ 1,812 $ 310 $ — $ (7) $ 7,626 Depreciation and amortization 125 87 26 23 — 261 Reorganization costs 5 — — 11 — 16 Gain on sale of assets — 1 — 1 — 2 Equity in (losses)/earnings of unconsolidated affiliates (5) — 13 — — 8 Loss on debt extinguishment, net — — — (47) — (47) Income/(loss) from continuing operations before income taxes 757 280 11 (382) — 666 Income/(loss) from continuing operations 757 280 10 (390) — 657 Income from discontinued operations, net of tax — — — 399 — 399 Net income 757 280 10 9 — 1,056 Net income attributable to NRG Energy, Inc. $ 757 $ 280 $ 9 $ 9 $ — $ 1,055

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Effective Income Tax Rate The income tax provision consisted of the following: Three months ended September 30, Nine months ended September 30, (In millions, except rates) 2020 2019 2020 2019 Income from continuing operations before income taxes $ 341 $ 380 $ 899 $ 666 Income tax expense from continuing operations 92 6 216 9 Effective income tax rate 27.0 % 1.6 % 24.0 % 1.4 % For the three and nine months ended September 30, 2020, the effective tax rates were higher than the statutory rate of 21% due to state tax expense partially offset by an excess tax benefit related to share-based compensation. For the same periods in 2019, the effective tax rates were lower than the statutory rate of 21% primarily due to the tax benefit for the change in valuation allowance partially offset by state tax expense. On March 27, 2020, the Senate passed the CARES Act to provide emergency relief related to the COVID-19 pandemic. The CARES Act contains federal income tax provisions which, among other things: (i) increases the amount of interest expense that businesses are allowed to deduct by increasing the adjusted taxable income limitation from 30% to 50% for tax years that begin in 2019 and 2020; (ii) permits businesses to carry back to each of the five tax years NOLs arising from tax years beginning after December 31, 2017 and before January 1, 2020; and (iii) temporarily removes the 80% limitation on NOLs until tax years beginning after 2020. NRG does not expect the CARES Act provisions to have a material impact on the tax positions of the Company. Uncertain Tax Benefits As of September 30, 2020, NRG had a non-current tax liability of $21 million for uncertain tax benefits from positions taken on various state income tax returns and accrued interest. For the nine months ended September 30, 2020, NRG accrued an immaterial amount of interest relating to the uncertain tax benefits. As of September 30, 2020, NRG had cumulative interest and penalties related to these uncertain tax benefits of $3 million. The Company recognizes interest and penalties related to uncertain tax benefits in income tax expense. NRG is subject to examination by taxing authorities for income tax returns filed in the U.S. federal jurisdiction and various state and foreign jurisdictions including operations located in Australia and Canada. The Company is no longer subject to U.S. federal income tax examinations for years prior to 2016. With few exceptions, state and local income tax examinations are no longer open for years prior to 2011.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions NRG provides services to some of its equity method investments under operations and maintenance agreements. Fees for the services under these agreements include recovery of NRG's costs of operating the plants. Certain agreements also include fees for administrative service, a base monthly fee, profit margin and/or annual incentive bonus. The following table summarizes NRG's material related party transactions with third party affiliates: Three months ended September 30, Nine months ended September 30, (In millions) 2020 2019 2020 2019 Revenues from Related Parties Included in Operating Revenues Gladstone $ 1 $ 2 $ 2 $ 3 Ivanpah (a) 11 7 34 25 Midway-Sunset 1 2 4 4 Total $ 13 $ 11 $ 40 $ 32 (a) Also includes fees under project management agreements with each project company

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments First Lien Structure NRG has granted first liens to certain counterparties on a substantial portion of property and assets owned by NRG and the guarantors of its senior debt. NRG uses the first lien structure to reduce the amount of cash collateral and letters of credit that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedge agreements for forward sales of power or gas used as a proxy for power. To the extent that the underlying hedge positions for a counterparty are out-of-the-money to NRG, the counterparties would have a claim under the first lien program. As of September 30, 2020, all hedges under the first lien were in-the-money for NRG on a counterparty aggregate basis. Jewett Mine Lignite Contract The Company's Limestone facility historically burned lignite obtained from the Jewett mine, which was operated by TWCC. On or about March 15, 2019, the Jewett mine and related lignite supply agreement with NRG were acquired by Westmoreland Jewett Mining LLC ("Jewett Mining"), a subsidiary of Westmoreland Mining LLC pursuant to a plan of reorganization confirmed by the Texas Bankruptcy Court. Effective August 5, 2020, NRG's subsidiary, NRG Texas LLC, acquired all of the equity interests of Jewett Mining. Active mining under the lignite supply agreement ceased as of December 31, 2016; however, under the terms of the lignite supply agreement, Jewett Mining remains responsible for reclamation activities and NRG is responsible for all reclamation costs. NRG has recorded an adequate ARO liability. The Railroad Commission of Texas has imposed a bond obligation of approximately $99 million for the reclamation of the Jewett mine, which NRG supports through surety bonds. The cost of the reclamation may exceed the value of the bonds. NRG may provide additional performance assurance if required by the Railroad Commission of Texas. Contingencies The Company's material legal proceedings are described below. The Company believes that it has valid defenses to these legal proceedings and intends to defend them vigorously. NRG records accruals for estimated losses from contingencies when information available indicates that a loss is probable and the amount of the loss, or range of loss, can be reasonably estimated. As applicable, the Company has established an adequate accrual for the applicable legal matters, including regulatory and environmental matters as further discussed in Note 18, Regulatory Matters , and Note 19, Environmental Matters . In addition, legal costs are expensed as incurred. Management has assessed each of the following matters based on current information and made a judgment concerning its potential outcome, considering the nature of the claim, the amount and nature of damages sought, and the probability of success. Unless specified below, the Company is unable to predict the outcome of these legal proceedings or reasonably estimate the scope or amount of any associated costs and potential liabilities. As additional information becomes available, management adjusts its assessment and estimates of such contingencies accordingly. Because litigation is subject to inherent uncertainties and unfavorable rulings or developments, it is possible that the ultimate resolution of the Company's liabilities and contingencies could be at amounts that are different from its currently recorded accruals and that such difference could be material. In addition to the legal proceedings noted below, NRG and its subsidiaries are party to other litigation or legal proceedings arising in the ordinary course of business. In management's opinion, the disposition of these ordinary course matters will not materially adversely affect NRG's consolidated financial position, results of operations, or cash flows. Washington-St. Tammany and Claiborne Electric Cooperative v. LaGen — On June 28, 2017, plaintiffs Washington-St. Tammany Electric Cooperative, Inc. and Claiborne Electric Cooperative, Inc. filed a lawsuit against LaGen in the United States District Court for the Middle District of Louisiana. The plaintiffs claimed breach of contract against LaGen for allegedly improperly charging the plaintiffs for costs related to the installation and maintenance of certain pollution control technology. Plaintiffs sought damages for the alleged improper charges and a declaration as to which charges were proper under the contract. In February 2020, the court dismissed this lawsuit without prejudice for lack of subject matter jurisdiction. This matter had been appealed to the United States Court of Appeals for the Fifth Circuit, which dismissed the appeals on July 13, 2020. On March 17, 2020, plaintiffs filed a lawsuit in the Nineteenth Judicial District Court for the Parish of East Baton Rouge in Louisiana alleging substantially the same matters. On February 4, 2019, NRG sold the South Central Portfolio, including the entities subject to this litigation. However, NRG has agreed to indemnify the purchaser for certain losses suffered in connection therewith. Sierra club et al. v. Midwest Generation LLC — In 2012, several environmental groups filed a complaint against Midwest Generation with the Illinois Pollution Control Board ("IPCB") alleging violations of environmental law resulting in groundwater contamination. In June 2019, the IPCB found that Midwest Generation violated the law because it had improperly handled coal ash at four facilities in Illinois and caused or allowed coal ash constituents to impact groundwater. On September 9, 2019, Midwest Generation filed a Motion to Reconsider numerous issues, which the court granted in part and denied in part on February 6, 2020. The IPCB will hold hearings to determine the appropriate relief. Midwest Generation has been working with the Illinois EPA to address the groundwater issues since 2010. XOOM Energy Litigation — XOOM is a defendant in two purported class action lawsuits pending in Maryland and New York. The plaintiffs generally claim that they did not receive the savings they were promised in their natural gas and electricity bills. In the Maryland lawsuit, the district court denied plaintiffs' bid to certify the case as a class action on August 18, 2020. The court is resetting the discovery and trial schedule for the remaining plaintiffs' individual claims. In the New York case, XOOM filed a motion to dismiss, which the court granted on September 21, 2018, later entering judgment in XOOM's favor on September 24, 2018. The plaintiffs in the New York case appealed to the U.S. Court of Appeals for the Second Circuit. On July 26, 2019, the Second Circuit reversed the judgment of the district court and remanded to the district court with instructions that plaintiffs be permitted to proceed on their proposed amended complaint. This matter was known and accrued for at the time of the acquisition.

Regulatory Matters

Regulatory Matters	9 Months Ended
	Sep. 30, 2020
Regulatory Matters Disclosure [Abstract]
Regulatory Matters	Regulatory Matters Environmental regulatory matters are discussed within Note 19, Environmental Matters. NRG operates in a highly regulated industry and is subject to regulation by various federal and state agencies. As such, NRG is affected by regulatory developments at both the federal and state levels and in the regions in which NRG operates. In addition, NRG is subject to the market rules, procedures, and protocols of the various ISO and RTO markets in which NRG participates. These power markets are subject to ongoing legislative and regulatory changes that may impact NRG's businesses. In addition to the regulatory proceedings noted below, NRG and its subsidiaries are parties to other regulatory proceedings arising in the ordinary course of business or have other regulatory exposure. In management's opinion, the disposition of these ordinary course matters will not materially adversely affect NRG's consolidated financial position, results of operations, or cash flows. California Station Power — As the result of unfavorable final and non-appealable litigation, the Company accrued a liability associated with consumption of station power at the Company's Encina power plant facility in California after August 30, 2010. The Company has established an appropriate accrual pending potential regulatory action by San Diego Gas & Electric regarding the Company's Encina facility. South Central — On August 4, 2016, NRG received a document hold notice from FERC regarding conduct in the MISO and PJM markets. FERC Office of Enforcement Staff investigated potential violations of MISO rules involving bidding for the Big Cajun 2 facility, as well as other aspects of NRG’s operations in MISO. On August 18, 2020, FERC Office of Enforcement presented NRG with its preliminary findings. NRG will respond to the preliminary findings on January 15, 2021. FERC has the authority to require disgorgement of profits and to impose penalties and NRG retains any liability following the sale of the South Central Portfolio. ISO-NE — On February 5, 2019, FERC informed the Company that it had made a preliminary finding that the Company violated FERC's market behavior rules in connection with offers made into the ISO-NE Forward Capacity Auction in 2016. On April 26, 2019, NRG responded to the preliminary findings. The investigation is awaiting further Commission action.

Environmental Matters

Environmental Matters	9 Months Ended
	Sep. 30, 2020
Environmental Matters Disclosure [Abstract]
Environmental Matters	Environmental Matters NRG is subject to a wide range of environmental laws in the development, construction, ownership and operation of projects. These laws generally require that governmental permits and approvals be obtained before construction and during operation of power plants. NRG is also subject to laws regarding the protection of wildlife, including migratory birds, eagles and threatened and endangered species. The electric generation industry has been facing requirements regarding GHGs, combustion byproducts, water discharge and use, and threatened and endangered species that have been put in place in recent years. However, under the current U.S. presidential administration, some of these rules are being reconsidered and reviewed. In general, future laws are expected to require the addition of emissions controls or other environmental controls or to impose certain restrictions on the operations of the Company's facilities, which could have a material effect on the Company's consolidated financial position, results of operations, or cash flows. Federal and state environmental laws generally have become more stringent over time, although this trend could slow or pause in the near term with respect to federal laws under the current U.S. presidential administration. Air On July 8, 2019, the EPA promulgated the ACE rule, which rescinded the CPP, which had sought to broadly regulate CO 2 emissions from the power sector. The ACE rule requires states that have coal-fired EGUs to develop plans to seek heat rate improvements from coal-fired EGUs. Numerous parties have challenged the ACE rule in the D.C. Circuit and numerous parties have filed petitions for reconsideration with the EPA. Water Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines for Steam Electric Generating Facilities, which imposed more stringent requirements (as individual permits were renewed) for wastewater streams from FGD, fly ash, bottom ash, and flue gas mercury control. On September 18, 2017, the EPA promulgated a final rule that, among other things, postponed the compliance dates to preserve the status quo for FGD wastewater and bottom ash transport water by two years to November 2020 until the EPA amended the rule. On October 13, 2020, the EPA amended the 2015 ELG rule by: (i) altering the stringency of certain limits for FGD wastewater; (ii) relaxing the zero-discharge requirement for bottom ash transport water; and (iii) changing several deadlines. The Company is in the process of estimating the environmental capital expenditures that will be required to comply. Byproducts, Wastes, Hazardous Materials and Contamination In April 2015, the EPA finalized the rule regulating byproducts of coal combustion (e.g., ash and gypsum) as solid wastes under the RCRA. In September 2017, the EPA agreed to reconsider the rule. On July 30, 2018, the EPA promulgated a rule that amends the existing ash rule by extending some of the deadlines and providing more flexibility for compliance. On August 21, 2018, the D.C. Circuit found, among other things, that the EPA had not adequately regulated unlined ponds and legacy ponds. On August 14, 2019, the EPA proposed targeted changes to the April 2015 Rule including changes to address the August 2018 D.C. Circuit decision. On December 2, 2019, the EPA released for comment "Closure Part A Proposal" to revise the CCR Rule to address the D.C. Circuit's 2018 decision regarding the adequacy of clay-lined impoundments, obligations to close all unlined impoundments and related deadlines. On February 20, 2020, the EPA proposed the framework for developing and implementing a federal permit program for states that are not approved to administer the CCR rule. On March 3, 2020, the EPA proposed for comment "A Holistic Approach to Closure Part B," which proposes procedures for obtaining approval to operate existing impoundments with alternative liners. On August 28, 2020, the EPA finalized "A Holistic Approach to Closure Part A: Deadline to Initiate Closure," which amended the April 2015 Rule to address the August 2018 D.C. Circuit decision and extend some of the deadlines. The Company anticipates that the EPA will promulgate additional regulations to further amend the existing rule. The Company has updated its estimates of required environmental capital expenditures.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsAs of November 5, 2020, the Company entered into $1.6 billion of interest rate hedges associated with anticipated financing needs.

Condensed Consolidating Financi

Condensed Consolidating Financial Information	9 Months Ended
	Sep. 30, 2020
Condensed Consolidating Financial Information Disclosure [Abstract]
Condensed Consolidating Financial Information	Condensed Consolidating Financial Information As of September 30, 2020, the Company had outstanding $4.4 billion of Senior Notes and Convertible Senior Notes due from 2026 to 2048 and outstanding $1.1 billion of Senior Secured Notes due from 2024 to 2029, as shown in Note 10, Long-term Debt . These Senior Notes and Senior Secured Notes are guaranteed by certain of NRG's current and future 100% owned domestic subsidiaries, or guarantor subsidiaries. These guarantees are both joint and several. The non-guarantor subsidiaries include all of NRG's foreign subsidiaries and certain domestic subsidiaries. NRG conducts much of its business through and derives much of its income from its subsidiaries. Therefore, the Company's ability to make required payments with respect to its indebtedness and other obligations depends on the financial results and condition of its subsidiaries and NRG's ability to receive funds from its subsidiaries. There are no restrictions on the ability of any of the guarantor subsidiaries to transfer funds to NRG. However, there may be restrictions for certain non-guarantor subsidiaries. The following condensed consolidating financial information presents the financial information of NRG Energy, Inc., the guarantor subsidiaries and the non-guarantor subsidiaries in accordance with Rule 3-10 of Regulation S-X of the Securities Act. The financial information may not necessarily be indicative of results of operations or financial position had the guarantor subsidiaries or non-guarantor subsidiaries operated as independent entities. In this presentation, NRG Energy, Inc. consists of parent company operations. Guarantor subsidiaries and non-guarantor subsidiaries of NRG are reported on an equity basis. For companies acquired, the fair values of the assets and liabilities acquired have been presented on a push-down accounting basis. Unless otherwise noted below, each of the following guarantor subsidiaries fully and unconditionally guaranteed the Senior Notes, Convertible Senior Notes and Senior Secured Notes as of September 30, 2020: Ace Energy, Inc. NRG Distributed Energy Resources Holdings LLC Reliant Energy Retail Services, LLC Allied Home Warranty GP LLC NRG Distributed Generation PR LLC RERH Holdings, LLC Allied Warranty LLC NRG Dunkirk Operations Inc. Saguaro Power LLC Arthur Kill Power LLC NRG ECOKAP Holdings LLC SGE Energy Sourcing, LLC Astoria Gas Turbine Power LLC NRG El Segundo Operations Inc. SGE Texas Holdco, LLC BidURenergy, Inc. NRG Energy Labor Services LLC Somerset Operations Inc. Cabrillo Power I LLC NRG Energy Services Group LLC Somerset Power LLC Cabrillo Power II LLC NRG Energy Services LLC Stream Energy Columbia, LLC Carbon Management Solutions LLC NRG Generation Holdings Inc. Stream Energy Delaware, LLC Cirro Energy Services, Inc. NRG Greenco LLC Stream Energy Illinois, LLC Cirro Group, Inc. NRG Home & Business Solutions LLC Stream Energy Maryland, LLC Connecticut Jet Power LLC NRG Home Services LLC Stream Energy New Jersey, LLC Devon Power LLC NRG Home Solutions LLC Stream Energy New York, LLC Dunkirk Power LLC NRG Home Solutions Product LLC Stream Energy Pennsylvania, LLC Eastern Sierra Energy Company LLC NRG Homer City Services LLC Stream Georgia Gas SPE, LLC El Segundo Power II LLC NRG HQ DG LLC Stream Ohio Gas & Electric, LLC El Segundo Power, LLC NRG Huntley Operations Inc. Stream SPE GP, LLC Energy Alternatives Wholesale, LLC NRG Identity Protect LLC Stream SPE, Ltd. Energy Choice Solutions LLC NRG Ilion Limited Partnership Texas Genco GP, LLC Energy Plus Holdings LLC NRG Ilion LP LLC Texas Genco Holdings, Inc. Energy Plus Natural Gas LLC NRG International LLC Texas Genco LP, LLC Energy Protection Insurance Company NRG Maintenance Services LLC Texas Genco Services, LP Everything Energy LLC NRG Mextrans Inc. US Retailers LLC Forward Home Security, LLC NRG Middletown Operations Inc. Vienna Operations Inc. GCP Funding Company, LLC NRG Montville Operations Inc. Vienna Power LLC Green Mountain Energy Company NRG North Central Operations Inc. WCP (Generation) Holdings LLC Gregory Partners, LLC NRG Norwalk Harbor Operations Inc. West Coast Power LLC Gregory Power Partners LLC NRG Operating Services, Inc. XOOM Alberta Holdings, LLC Huntley Power LLC NRG Oswego Harbor Power Operations Inc. XOOM British Columbia Holdings, LLC Independence Energy Alliance LLC NRG Portable Power LLC XOOM Energy California, LLC Independence Energy Group LLC NRG Power Marketing LLC XOOM Energy Connecticut, LLC Independence Energy Natural Gas LLC NRG Reliability Solutions LLC XOOM Energy Delaware, LLC Indian River Operations Inc. NRG Renter's Protection LLC XOOM Energy Georgia, LLC Indian River Power LLC NRG Retail LLC XOOM Energy Global Holdings, LLC Meriden Gas Turbines LLC NRG Retail Northeast LLC XOOM Energy Illinois LLC Middletown Power LLC NRG Rockford Acquisition LLC XOOM Energy Indiana, LLC Montville Power LLC NRG Saguaro Operations Inc. XOOM Energy Kentucky, LLC NEO Corporation NRG Security LLC XOOM Energy Maine, LLC New Genco GP, LLC NRG Services Corporation XOOM Energy Maryland, LLC Norwalk Power LLC NRG SimplySmart Solutions LLC XOOM Energy Massachusetts, LLC NRG Advisory Services LLC NRG South Central Operations Inc. XOOM Energy Michigan, LLC NRG Affiliate Services Inc. NRG South Texas LP XOOM Energy New Hampshire, LLC NRG Arthur Kill Operations Inc. NRG Texas Gregory LLC XOOM Energy New Jersey, LLC NRG Astoria Gas Turbine Operations Inc. NRG Texas Holding Inc. XOOM Energy New York, LLC NRG Business Services LLC NRG Texas LLC XOOM Energy Ohio, LLC NRG Cabrillo Power Operations Inc. NRG Texas Power LLC XOOM Energy Pennsylvania, LLC NRG California Peaker Operations LLC NRG Warranty Services LLC XOOM Energy Rhode Island, LLC NRG Cedar Bayou Development Company, LLC NRG West Coast LLC XOOM Energy Texas, LLC NRG Connected Home LLC NRG Western Affiliate Services Inc. XOOM Energy Virginia, LLC NRG Construction LLC Oswego Harbor Power LLC XOOM Energy Washington D.C., LLC NRG Curtailment Solutions, Inc. Reliant Energy Northeast LLC XOOM Energy, LLC NRG Development Company Inc. Reliant Energy Power Supply, LLC XOOM Ontario Holdings, LLC NRG Devon Operations Inc. Reliant Energy Retail Holdings, LLC XOOM Solar, LLC NRG Dispatch Services LLC NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the three months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 2,513 $ 297 $ — $ (1) $ 2,809 Operating Costs and Expenses Cost of operations 1,796 230 9 (1) 2,034 Depreciation and amortization 72 21 6 — 99 Impairment losses — 29 — — 29 Selling, general and administrative costs 154 7 92 — 253 Development costs — (1) 2 — 1 Total operating costs and expenses 2,022 286 109 (1) 2,416 Operating Income/(Loss) 491 11 (109) — 393 Other Income/(Expense) Equity in earnings of consolidated subsidiaries — — 540 (540) — Equity in earnings of unconsolidated affiliates — 36 — — 36 Other income, net 4 2 5 — 11 Interest expense (3) — (96) — (99) Total other income/(expense) 1 38 449 (540) (52) Income from Continuing Operations Before Income Taxes 492 49 340 (540) 341 Income tax expense — 1 91 — 92 Net Income $ 492 $ 48 $ 249 $ (540) $ 249 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the nine months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 6,346 $ 730 $ — $ (10) $ 7,066 Operating Costs and Expenses Cost of operations 4,357 586 (8) (10) 4,925 Depreciation and amortization 232 60 26 — 318 Impairment losses — 29 — — 29 Selling, general and administrative costs 431 19 220 — 670 Reorganization costs — — 3 — 3 Development costs — — 6 — 6 Total operating costs and expenses 5,020 694 247 (10) 5,951 Gain on sale of assets — 1 5 — 6 Operating Income/(Loss) 1,326 37 (242) — 1,121 Other Income/(Expense) Equity in earnings of consolidated subsidiaries 6 — 1,385 (1,391) — Equity in earnings of unconsolidated affiliates — 37 — — 37 Impairment losses on investments — (18) — — (18) Other income, net 14 6 32 — 52 Loss on debt extinguishment, net — — (1) — (1) Interest expense (12) (3) (277) — (292) Total other income/(expense) 8 22 1,139 (1,391) (222) Income from Continuing Operations Before Income Taxes 1,334 59 897 (1,391) 899 Income tax expense — 2 214 — 216 Net Income $ 1,334 $ 57 $ 683 $ (1,391) $ 683 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) For the three months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income $ 492 $ 48 $ 249 $ (540) $ 249 Other Comprehensive Income Foreign currency translation adjustments, net 5 3 4 (8) 4 Defined benefit plans, net 2 — — (2) — Other comprehensive income 7 3 4 (10) 4 Comprehensive Income $ 499 $ 51 $ 253 $ (550) $ 253 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME For the nine months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income $ 1,334 $ 57 $ 683 $ (1,391) $ 683 Other Comprehensive Income Foreign currency translation adjustments, net 2 1 2 (3) 2 Defined benefit plans, net 5 — — (5) — Other comprehensive income 7 1 2 (8) 2 Comprehensive Income $ 1,341 $ 58 $ 685 $ (1,399) $ 685 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEETS September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated ASSETS Current Assets Cash and cash equivalents $ — $ 23 $ 674 $ — $ 697 Funds deposited by counterparties 15 — — — 15 Restricted cash 5 — 1 — 6 Accounts receivable, net 650 1,034 805 (1,363) 1,126 Inventory 253 77 — — 330 Derivative instruments 582 14 — (18) 578 Cash collateral paid in support of energy risk management activities 74 3 — — 77 Prepayments and other current assets 238 16 4 — 258 Total current assets 1,817 1,167 1,484 (1,381) 3,087 Property, plant and equipment, net 1,270 1,159 144 — 2,573 Other Assets Investment in subsidiaries 28 — 4,981 (5,009) — Equity investments in affiliates — 376 — — 376 Operating lease right-of-use assets, net 68 167 110 — 345 Goodwill 400 179 — — 579 Intangible assets, net 684 37 — — 721 Nuclear decommissioning trust fund 828 — — — 828 Derivative instruments 315 10 — (10) 315 Deferred income taxes 435 (32) 2,684 — 3,087 Other non-current assets 168 110 36 — 314 Total other assets 2,926 847 7,811 (5,019) 6,565 Total Assets $ 6,013 $ 3,173 $ 9,439 $ (6,400) $ 12,225 LIABILITIES AND STOCKHOLDERS’ EQUITY Current Liabilities Current portion of long-term debt $ 3 $ — $ — $ — $ 3 Current portion of operating lease liabilities 18 33 18 — 69 Accounts payable 933 144 1,039 (1,363) 753 Derivative instruments 505 8 — (18) 495 Cash collateral received in support of energy risk management activities 15 — — — 15 Accrued expenses and other current liabilities 275 71 305 — 651 Total current liabilities 1,749 256 1,362 (1,381) 1,986 Other Liabilities Long-term debt 245 — 5,547 — 5,792 Non-current operating lease liabilities 56 134 107 — 297 Nuclear decommissioning reserve 311 — — — 311 Nuclear decommissioning trust liability 508 — — — 508 Derivative instruments 326 2 — (10) 318 Deferred income taxes — 17 — — 17 Other non-current liabilities 307 266 489 — 1,062 Total other liabilities 1,753 419 6,143 (10) 8,305 Total Liabilities 3,502 675 7,505 (1,391) 10,291 Stockholders’ Equity 2,511 2,498 1,934 (5,009) 1,934 Total Liabilities and Stockholders’ Equity $ 6,013 $ 3,173 $ 9,439 $ (6,400) $ 12,225 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS For the nine months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Cash Flows from Operating Activities Net income $ 1,334 $ 57 $ 683 $ (1,391) $ 683 Adjustments to reconcile net income/(loss) to cash provided by operating activities: Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries (6) 6 (1,385) 1,391 6 Depreciation and amortization 232 60 26 — 318 Accretion of asset retirement obligations 19 27 — — 46 Provision for credit losses 66 8 — — 74 Amortization of nuclear fuel 40 — — — 40 Amortization of financing costs and debt discount/premiums — — 23 — 23 Loss on debt extinguishment, net — — 1 — 1 Amortization of emission allowances and energy credits 46 14 — — 60 Amortization of unearned equity compensation — — 17 — 17 Net gain on sale of assets and disposal of assets (16) (1) (5) — (22) Impairment losses — 47 — — 47 Changes in derivative instruments (27) 20 — — (7) Changes in deferred income taxes and liability for uncertain tax benefits (52) 11 243 — 202 Changes in collateral deposits in support of energy risk management activities 91 5 — — 96 Changes in nuclear decommissioning trust liability 39 — — — 39 Changes in other working capital 355 (923) 331 — (237) Net Cash Provided/(Used) by Operating Activities 2,121 (669) (66) — 1,386 Cash Flows from Investing Activities Intercompany dividends — — 2,591 (2,591) — Payments for acquisitions of businesses (15) (262) — — (277) Capital expenditures (115) (28) (24) — (167) Net purchases of emission allowances (15) — — — (15) Investments in nuclear decommissioning trust fund securities (360) — — — (360) Proceeds from the sale of nuclear decommissioning trust fund securities 318 — — — 318 Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees 8 2 5 — 15 Net contributions to investments in unconsolidated affiliates — 2 — — 2 Net Cash (Used)/Provided by Investing Activities (179) (286) 2,572 (2,591) (484) Cash Flows from Financing Activities Intercompany dividends and transfers (1,894) 964 (1,661) 2,591 — Payments of dividends to common stockholders — — (221) — (221) Payments for share repurchase activity — — (229) — (229) Purchase of and distributions to noncontrolling interests from subsidiaries — (2) — — (2) Proceeds from issuance of common stock — — 1 — 1 Proceeds from issuance of long-term debt — — 59 — 59 Payment of debt issuance costs — — (24) — (24) Repayments of long-term debt (59) (3) — — (62) Net repayment of Revolving Credit Facility — — (83) — (83) Other (6) — — — (6) Net Cash (Used)/Provided by Financing Activities (1,959) 959 (2,158) 2,591 (567) Effect of exchange rate changes on cash and cash equivalents — (2) — — (2) Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash (17) 2 348 — 333 Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period 37 21 327 — 385 Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period $ 20 $ 23 $ 675 $ — $ 718 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the three months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 2,473 $ 525 $ — $ (2) $ 2,996 Operating Costs and Expenses Cost of operations 1,728 421 6 (2) 2,153 Depreciation and amortization 52 32 7 — 91 Selling, general and administrative costs 132 28 50 — 210 Reorganization costs — — 1 — 1 Development costs — — 1 — 1 Total operating costs and expenses 1,912 481 65 (2) 2,456 Operating Income/(Loss) 561 44 (65) — 540 Other Income/(Expense) Equity in earnings of consolidated subsidiaries 20 — 537 (557) — Equity in earnings of unconsolidated affiliates — 29 — — 29 Impairment losses on investments — (101) (6) — (107) Other income, net 11 1 5 — 17 Interest expense (4) (3) (92) — (99) Total other income/(expense) 27 (74) 444 (557) (160) Income/(Loss) from Continuing Operations Before Income Taxes 588 (30) 379 (557) 380 Income tax expense — 1 5 — 6 Income/(Loss) from Continuing Operations 588 (31) 374 (557) 374 Loss from discontinued operations, net of income tax — — (2) — (2) Net Income Attributable to NRG Energy, Inc. $ 588 $ (31) $ 372 $ (557) $ 372 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the nine months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 6,382 $ 1,252 $ — $ (8) $ 7,626 Operating Costs and Expenses Cost of operations 4,676 956 25 (8) 5,649 Depreciation and amortization 157 81 23 — 261 Impairment losses 1 — — — 1 Selling, general and administrative costs 366 56 193 — 615 Reorganization costs — — 16 — 16 Development costs — 1 4 — 5 Total operating costs and expenses 5,200 1,094 261 (8) 6,547 Gain on sale of assets 1 1 — — 2 Operating Income/(Loss) 1,183 159 (261) — 1,081 Other Income/(Expense) Equity in earnings of consolidated subsidiaries 32 — 1,266 (1,298) — Equity in earnings of unconsolidated affiliates — 8 — — 8 Impairment losses on investments — (101) (6) — (107) Other income, net 19 10 20 — 49 Loss on debt extinguishment, net — — (47) — (47) Interest expense (11) (12) (295) — (318) Total other income/(expense) 40 (95) 938 (1,298) (415) Income from Continuing Operations Before Income Taxes 1,223 64 677 (1,298) 666 Income tax expense — 2 7 — 9 Income from Continuing Operations 1,223 62 670 (1,298) 657 Income from discontinued operations, net of income tax 9 5 385 — 399 Net Income 1,232 67 1,055 (1,298) 1,056 Less: Net income attributable to noncontrolling interest and redeemable noncontrolling interest — 1 — — 1 Net Income Attributable to NRG Energy, Inc. $ 1,232 $ 66 $ 1,055 $ (1,298) $ 1,055 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME For the three months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income/(Loss) $ 588 $ (31) $ 372 $ (557) $ 372 Other Comprehensive Loss Foreign currency translation adjustments, net (5) (4) (4) 9 (4) Available-for-sale securities, net — — (14) — (14) Defined benefit plans, net (40) — (41) 40 (41) Other comprehensive loss (45) (4) (59) 49 (59) Comprehensive Income/(Loss) $ 543 $ (35) $ 313 $ (508) $ 313 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME For the nine months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income $ 1,232 $ 67 $ 1,055 $ (1,298) $ 1,056 Other Comprehensive Loss Foreign currency translation adjustments, net (5) (4) (4) 9 (4) Available-for-sale securities, net — — (13) — (13) Defined benefit plans, net (40) — (47) 40 (47) Other comprehensive loss (45) (4) (64) 49 (64) Comprehensive Income 1,187 63 991 (1,249) 992 Less: Comprehensive income attributable to redeemable noncontrolling interest — 1 — — 1 Comprehensive Income Attributable to NRG Energy, Inc. $ 1,187 $ 62 $ 991 $ (1,249) $ 991 (a) All significant intercompany transactions have been eliminated in consolidation CONDENSED CONSOLIDATING BALANCE SHEETS December 31, 2019 (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated ASSETS Current Assets Cash and cash equivalents $ — $ 20 $ 325 $ — $ 345 Funds deposited by counterparties 32 — — — 32 Restricted cash 5 1 2 — 8 Accounts receivable, net 1,293 239 233 (740) 1,025 Inventory 272 111 — — 383 Derivative instruments 856 45 — (41) 860 Cash collateral paid in support of energy risk management activities 182 8 — — 190 Prepayments and other current assets 170 8 67 — 245 Total current assets 2,810 432 627 (781) 3,088 Property, plant and equipment, net 1,483 952 158 — 2,593 Other Assets Investment in subsidiaries 710 — 4,785 (5,495) — Equity investments in affiliates — 388 — — 388 Operating lease right-of-use assets, net 81 261 122 — 464 Goodwill 359 220 — — 579 Intangible assets, net 375 414 — — 789 Nuclear decommissioning trust fund 794 — — — 794 Derivative instruments 308 15 — (13) 310 Deferred income taxes 421 (19) 2,884 — 3,286 Other non-current assets 145 30 65 — 240 Total other assets 3,193 1,309 7,856 (5,508) 6,850 Total Assets $ 7,486 $ 2,693 $ 8,641 $ (6,289) $ 12,531 LIABILITIES AND STOCKHOLDERS’ EQUITY Current Liabilities Current portion of long-term debt $ — $ 5 $ 83 $ — $ 88 Current portion of operating lease liabilities 20 32 21 — 73 Accounts payable 918 141 403 (740) 722 Derivative instruments 797 25 — (41) 781 Cash collateral received in support of energy risk management activities 32 — — — 32 Accrued expenses and other current liabilities 280 44 339 — 663 Total current liabilities 2,047 247 846 (781) 2,359 Other Liabilities Long-term debt 302 28 5,473 — 5,803 Non-current operating lease liabilities 64 301 118 — 483 Nuclear decommissioning reserve 298 — — — 298 Nuclear decommissioning trust liability 487 — — — 487 Derivative instruments 334 1 — (13) 322 Deferred income taxes — 17 — — 17 Other non-current liabilities 399 153 532 — 1,084 Total other liabilities 1,884 500 6,123 (13) 8,494 Total Liabilities 3,931 747 6,969 (794) 10,853 Redeemable noncontrolling interest in subsidiaries — 20 — — 20 Stockholders’ Equity 3,555 1,926 1,672 (5,495) 1,658 Total Liabilities and Stockholders’ Equity $ 7,486 $ 2,693 $ 8,641 $ (6,289) $ 12,531 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS For the nine months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Cash Flows from Operating Activities Net income $ 1,232 $ 67 $ 1,055 $ (1,298) $ 1,056 Income from discontinued operations 9 5 385 — 399 Income from continuing operations 1,223 62 670 (1,298) 657 Adjustments to reconcile net income to cash provided by operating activities: Distributions from and equity in losses of unconsolidated affiliates and consolidated subsidiaries (32) (5) (1,266) 1,298 (5) Depreciation and amortization 156 82 23 — 261 Accretion of asset retirement obligations 25 6 — — 31 Provision for credit losses 72 11 4 — 87 Amortization of nuclear fuel 40 — — — 40 Amortization of financing costs and debt discount/premiums — — 20 — 20 Loss on debt extinguishment, net — — 47 — 47 Amortization of emission allowances and energy credits 21 7 — — 28 Amortization of unearned equity compensation — — 15 — 15 Net loss on sale of assets and disposal of assets (25) 2 3 — (20) Impairment losses 1 101 6 — 108 Changes in derivative instruments 10 (12) 38 — 36 Changes in deferred income taxes and liability for uncertain tax benefits — (1) (2) — (3) Changes in collateral deposits in support of energy risk management activities 136 (7) — — 129 Changes in nuclear decommissioning trust liability 27 — — — 27 Changes in other working capital (401) (123) (45) — (569) Cash provided/(used) by continuing operations 1,253 123 (487) — 889 Cash provided/(used) by discontinued operations 17 (9) — — 8 Net Cash Provided/(Used) by Operating Activities 1,270 114 (487) — 897 Cash Flows from Investing Activities Intercompany dividends — — 3,866 (3,866) — Payments for acquisitions of businesses (348) — — — (348) Capital expenditures (135) (23) (25) — (183) Decrease in notes receivable — — 2 — 2 Net purchases of emission allowances 14 — — — 14 Investments in nuclear decommissioning trust fund securities (295) — — — (295) Proceeds from the sale of nuclear decommissioning trust fund securities 271 — — — 271 Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees 1 400 892 — 1,293 Net distributions from investments in unconsolidated affiliates — (94) — (94) Contributions to discontinued operations — (44) — — (44) Cash (used)/provided by continuing operations (492) 239 4,735 (3,866) 616 Cash used by discontinued operations — (2) — — (2) Net Cash (Used)/Provided by Investing Activities (492) 237 4,735 (3,866) 614 Cash Flows from Financing Activities Intercompany dividends and transfers (824) (317) (2,725) 3,866 — Payment of dividends to common stockholders — — (24) — (24) Payments for share repurchase activity — — (1,322) — (1,322) Payments for debt extinguishment — — (24) — (24) Net distributions to noncontrolling interests from subsidiaries — (1) — — (1) Proceeds from issuance of common stock — — 3 — 3 Proceeds from issuance of long-term debt — — 1,833 — 1,833 Payment of debt issuance costs — — (34) — (34) Payments for long-term debt — (55) (2,432) — (2,487) Net proceeds of Revolving Credit Facility — — 215 — 215 Cash used by continuing operations (824) (373) (4,510) 3,866 (1,841) Cash provided by discontinued operations — 43 — — 43 Net Cash Used by Financing Activities (824) (330) (4,510) 3,866 (1,798) Change in cash from discontinued operations 17 32 — — 49 Net Decrease in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash (63) (11) (262) — (336) Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period 95 38 480 — 613 Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period $ 32 $ 27 $ 218 $ — $ 277 (a) All significant intercompany transactions have been eliminated in consolidation

Receivables Securitization and

Receivables Securitization and Repurchase Facility	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Receivables Securitization and Repurchase Facility	Receivables Securitization and Repurchase Facility Receivables Securitization On September 22, 2020, NRG Receivables LLC, a bankruptcy remote, special purpose, indirect wholly owned subsidiary, entered into the Receivables Facility for an amount up to $750 million, subject to adjustments on a seasonal basis, with issuers of asset-backed commercial paper and commercial banks (the "Lenders".) The assets of NRG Receivables LLC are first available to satisfy the claims of the Lenders before making payments on the subordinated note and equity issued by NRG Receivables LLC. The assets of NRG Receivables LLC are not available to the Company and its subsidiaries or creditors unless and until distributed by NRG Receivables LLC. Under the Receivables Facility, certain indirect subsidiaries of the Company sell their accounts receivables to NRG Receivables LLC, subject to certain terms and conditions. In turn, NRG Receivables LLC grants a security interest in the purchased receivables to the Lenders as collateral for cash borrowings and issuances of letters of credit. The accounts receivables remain on the Company's consolidated balance sheet and any amounts funded by the Lenders to NRG Receivables LLC will be reflected as short-term borrowings. Cash flows from the Receivables Facility are reflected as financing activities in the Company's consolidated statements of cash flows. The Company will continue to service the accounts receivables sold in exchange for a servicing fee. The Receivables Facility is scheduled to expire on September 21, 2021, unless renewed by the mutual consent of the parties in accordance with its terms. Borrowings by NRG Receivables LLC under the Receivables Facility bear interest as defined under the Receivables Financing Agreement. The weighted average interest rate related to usage under the Securitization Facility as of September 30, 2020 was 0.489%. As of September 30, 2020, there were no outstanding borrowings and there were $179 million in letters of credit issued under the Receivables Facility. Repurchase Facility On September 22, 2020, the Company entered into an uncommitted repurchase facility (“Repurchase Facility”) related to the Receivables Facility. Under the Repurchase Facility, the Company can borrow up to $75 million, collateralized by a subordinated note issued by NRG Receivables LLC to NRG Retail LLC in favor of the originating entities representing a portion of the balance of receivables sold to NRG Receivables LLC under the Receivables Facility. The Repurchase Facility is scheduled to expire on September 22, 2021, unless renewed by the mutual consent of the parties in accordance with its terms. The Repurchase Facility has no commitment fee and borrowings will be drawn at LIBOR + 1.25%. As of September 30, 2020, there were no outstanding borrowings under the Repurchase Facility.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Segment Reporting	Segments As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources. The Company's businesses are segregated as follows: • Texas, which includes all activity related to customer, plant and market operations in Texas; • East, which includes the remaining activity related to customer operations and all activity related to plant and market operations in the East; • West/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West, (ii) activity related to the Cottonwood power plant that was sold to Cleco on February 4, 2019 and is being leased back until 2025, (iii) the remaining renewables activity, including the Company’s equity method investments in Ivanpah Master Holdings, LLC and Agua Caliente, the remaining Home Solar assets and the NFL stadium solar generating assets, and (iv) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and • Corporate activities. All affected disclosures have been recast to reflect these changes for all periods presented. For further discussion of segment reporting, refer to Note 14, Segment Reporting . As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020, as further described in Note 1, Nature of Business . The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources The financial information for the three and nine months ended September 30, 2019 was recast to reflect the current segment structure. In February 2019, as described in Note 4, Acquisitions, Discontinued Operations and Dispositions , the Company completed the sales of the South Central Portfolio and Carlsbad. The financial information for the three and nine months ended September 30, 2019 presented below reflects the presentation of these entities as discontinued operations within the corporate segment.
Use of Estimates	Use of EstimatesThe preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
Reclassifications	Reclassifications Certain prior year amounts have been reclassified for comparative purposes.
Credit Losses	Credit Losses On January 1, 2020, the Company adopted ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , or ASU No. 2016-13, using the modified retrospective approach. Following the adoption of the new standard, the Company’s process of estimating expected credit losses remains materially consistent with its historical practice. Information prior to January 1, 2020, which was previously referred to as the allowance and provision for bad debt, has not been restated and continues to be reported under the accounting standards in effect for that period. Retail trade receivables are reported on the balance sheet net of the allowance for credit losses. The Company accrues an allowance for current expected credit losses based on (i) estimates of uncollectible revenues by analyzing accounts receivable aging and current and reasonable forecasts of expected economic factors including, but not limited to, unemployment rates and weather-related events, (ii) historical collections and delinquencies, and (iii) counterparty credit ratings for commercial and industrial customers.
Restricted Cash	Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its counterparties. Some amounts are segregated into separate accounts that are not contractually restricted but, based on the Company's intention, are not available for the payment of general corporate obligations. Depending on market fluctuations and the settlement of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance sheet, with an offsetting liability for this cash collateral received within current liabilities. Restricted cash consists primarily of funds held within the Company's projects that are restricted for specific uses.
Pension Plan Contributions	Pension Plan Contributions In the Company's 2019 Form 10-K, NRG had anticipated making contributions of $56 million to its pension plans in 2020. Cash contributions of $12 million were made during the nine months ended September 30, 2020 and the remaining planned contributions for 2020 were satisfied by available pre-funded pension balances (previous contributions in excess of required pension contributions). No additional contributions are planned in the fourth quarter of 2020.
Recent Accounting Developments	Recent Accounting Developments - Guidance Adopted in 2020 ASU 2018-17 — In October 2018, the FASB issued ASU No. 2018-17, Consolidations (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities , or ASU No. 2018-17, in response to stakeholders’ observations that Topic 810, Consolidations , could be improved thereby improving general purpose financial reporting. Specifically, ASU No. 2018-17 requires application of the variable interest entity (VIE) guidance to private companies under common control and consideration of indirect interest held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. All entities are required to apply the amendments retrospectively. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position. ASU 2018-15 — In August 2018, the FASB issued ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in Cloud Computing Arrangement That Is a Service Contract , or ASU No. 2018-15. The amendments in ASU No. 2018-15 align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing costs incurred to develop or obtain internal-use software (and hosting arrangement that include an internal-use software license). The amendment also requires the customer to amortize the capitalized implementation costs of a hosting arrangement that is a service contract over the term of the hosting arrangement. The Company adopted the amendments effective January 1, 2020 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position. ASU 2018-13 — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirement for Fair value Measurement) , or ASU No. 2018-13. The amendments in ASU No. 2018-13 eliminate such disclosures as the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and add new disclosure requirements for Level 3 measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Certain disclosures in ASU No. 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company adopted the amendments effective January 1, 2020. As the amendments contemplates changes in disclosures only, it did not have an impact on the Company's results of operations, cash flows, or statement of financial position. ASU 2016-13 — In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Statements, or ASU No. 2016-13, which was further amended through various updates issued by the FASB thereafter. The guidance in ASU No. 2016-13 provides a new model for recognizing credit losses on financial assets carried at amortized cost using an estimate of expected credit losses, instead of the "incurred loss" methodology previously required for recognizing credit losses that delayed recognition until it was probable that a loss was incurred. The estimate of expected credit losses is to be based on consideration of past events, current conditions and reasonable and supportable forecasts of future conditions. The Company adopted the standard and its subsequent corresponding updates effective January 1, 2020 using the modified retrospective approach. Results for the reporting periods after January 1, 2020 are presented under Topic 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company's adoption of Topic 326 did not have a material impact on the Company's results of operations, cash flows, or statement of financial position. Recent Accounting Developments - Guidance Not Yet Adopted ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40) , or ASU No. 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years. Early adoption is permitted in fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company is currently in the process of assessing the impact of this guidance on the consolidated financial statements and disclosures related to earnings per share. ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes,
Nuclear Decommissioning	NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of its 44% interest in STP, are comprised of securities classified as available-for-sale and recorded at fair value based on actively quoted market prices. NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Other Balance Sheet Information	The following table presents the accumulated depreciation included in property, plant and equipment, net and accumulated amortization included in intangible assets, net: (In millions) September 30, 2020 December 31, 2019 Property, plant and equipment accumulated depreciation $ 1,901 $ 1,752 Intangible assets accumulated amortization 1,314 1,262
Activity in Allowance for Credit Losses	The following table represents the activity in the allowance for credit losses for the three and nine months ended September 30, 2020: (In millions) Three months ended September 30, 2020 Nine months ended September 30, 2020 Beginning balance $ 47 $ 43 Provision for credit losses 26 74 Write-offs (19) (71) Recoveries collected 3 11 Ending balance $ 57 $ 57
Reconciliation of Cash and Cash Equivalents, Restricted Cash and Funds Deposited by Counterparties	The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows: (In millions) September 30, 2020 December 31, 2019 Cash and cash equivalents $ 697 $ 345 Funds deposited by counterparties 15 32 Restricted cash 6 8 Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows $ 718 $ 385

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue from Contracts with Customer	Disaggregated Revenues The following tables represent the Company’s disaggregation of revenue from contracts with customers for the three and nine months ended September 30, 2020 and 2019: Three months ended September 30, 2020 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 1,633 $ 354 $ — $ — $ 1,987 Business Solutions 288 27 — — 315 Total retail revenue 1,921 381 — — 2,302 Energy revenue (a) 11 93 117 1 222 Capacity revenue (a) — 158 16 — 174 Mark-to-market for economic hedging activities (b) 1 43 (10) 5 39 Other revenue (a) 59 18 (1) (4) 72 Total operating revenue 1,992 693 122 2 2,809 Less: Lease revenue — — 5 — 5 Less: Realized and unrealized ASC 815 revenue 10 115 (10) 5 120 Total revenue from contracts with customers $ 1,982 $ 578 $ 127 $ (3) $ 2,684 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ — $ 23 $ 13 $ (1) $ 35 Capacity revenue — 49 — — 49 Other revenue 9 — (13) 1 (3) (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Three months ended September 30, 2019 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 1,735 $ 337 $ — $ — $ 2,072 Business Solutions 397 19 — — 416 Total retail revenue 2,132 356 — — 2,488 Energy revenue (a) 211 109 107 (1) 426 Capacity revenue (a) — 185 9 — 194 Mark-to-market for economic hedging activities (b) (213) 12 (9) — (210) Other revenue (a) 78 17 4 (1) 98 Total operating revenue 2,208 679 111 (2) 2,996 Less: Lease revenue — — 5 — 5 Less: Realized and unrealized ASC 815 revenue 420 69 — (2) 487 Total revenue from contracts with customers $ 1,788 $ 610 $ 106 $ — $ 2,504 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ 613 $ 20 $ 21 $ (2) $ 652 Capacity revenue — 34 — — 34 Other revenue 20 3 (12) — 11 (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Nine months ended September 30, 2020 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 3,938 $ 992 $ — $ (1) $ 4,929 Business Solutions 796 70 — — 866 Total retail revenue 4,734 1,062 — (1) 5,795 Energy revenue (a) 21 157 252 (1) 429 Capacity revenue (a) — 471 47 — 518 Mark-to-market for economic hedging activities (b) 1 63 6 8 78 Other revenue (a) 172 45 36 (7) 246 Total operating revenue 4,928 1,798 341 (1) 7,066 Less: Lease revenue — 1 14 — 15 Less: Realized and unrealized ASC 815 revenue 24 239 50 5 318 Total revenue from contracts with customers $ 4,904 $ 1,558 $ 277 $ (6) $ 6,733 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ — $ 60 $ 42 $ (3) $ 99 Capacity revenue — 114 — — 114 Other revenue 23 2 2 — 27 (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815 Nine months ended September 30, 2019 (In millions) Texas East West/Other Corporate/Eliminations Total Retail revenue: Mass Market $ 3,891 $ 892 $ — $ (3) $ 4,780 Business Solutions 927 55 — — 982 Total retail revenue 4,818 947 — (3) 5,762 Energy revenue (a) 452 283 217 — 952 Capacity revenue (a) — 524 27 — 551 Mark-to-market for economic hedging activities (b) 28 13 11 (1) 51 Other revenue (a) 213 45 55 (3) 310 Total operating revenue 5,511 1,812 310 (7) 7,626 Less: Lease revenue — 1 14 — 15 Less: Realized and unrealized ASC 815 revenue 1,314 187 46 (2) 1,545 Total revenue from contracts with customers $ 4,197 $ 1,624 $ 250 $ (5) $ 6,066 (a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above: (In millions) Texas East West/Other Corporate/Eliminations Total Energy revenue $ 1,239 $ 87 $ 28 $ (2) $ 1,352 Capacity revenue — 81 — 1 82 Other revenue 47 6 7 — 60 (b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
Contract Asset and Liabilities	The following table reflects the contract assets and liabilities included in the Company’s balance sheet as of September 30, 2020 and December 31, 2019: (In millions) September 30, 2020 December 31, 2019 Deferred customer acquisition costs $ 122 $ 133 Accounts receivable, net - Contracts with customers 1,084 1,002 Accounts receivable, net - Derivative instruments 37 18 Accounts receivable, net - Affiliate 5 5 Total accounts receivable, net $ 1,126 $ 1,025 Unbilled revenues (included within Accounts receivable, net - Contracts with customers) $ 411 $ 402 Deferred revenues (a) 60 82 (a) Deferred revenues from contracts with customers for the three months ended September 30, 2020 and the year ended December 31, 2019 were approximately $31 million and $24 million, respectively

Acquisitions, Discontinued Op_2

Acquisitions, Discontinued Operations and Dispositions (Tables)	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Schedule of Purchase Price Allocation	The purchase price was allocated as follows: (In millions) Account receivable $ 98 Accounts payable (73) Other net current and non-current working capital 5 Marketing partnership 154 Customer relationships 85 Trade name 28 Other intangible assets 26 Goodwill (a) 6 Stream Purchase Price $ 329 (a) Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes
Summary of Results of Discontinued Operations	Summarized results of the South Central Portfolio discontinued operations were as follows: Three months ended Nine months ended (In millions) September 30, 2019 September 30, 2019 Operating revenues $ — $ 31 Operating costs and expenses — (23) Gain from operations of discontinued components — 8 (Loss)/Gain on disposal of discontinued operations, net of tax (1) 27 (Loss)/Gain from discontinued operations, including disposal, net of tax $ (1) $ 35 Summarized results of Carlsbad discontinued operations were as follows: Three months ended Nine months ended (In millions) September 30, 2019 September 30, 2019 Operating revenues $ — $ 19 Operating costs and expenses — (9) Other expenses — (5) Gain from discontinued operations, net of tax — 5 (Loss)/gain on disposal of discontinued operations, net of tax (1) 330 Other Commitments, Indemnification and Fees — 27 (Loss)/gain on disposal of discontinued operations, net of tax (1) 357 (Loss)/gain from discontinued operations, including disposal, net of tax $ (1) $ 362 Summarized results of GenOn discontinued operations were as follows: Nine months ended (In millions) September 30, 2019 Gain from discontinued operations, net of tax $ 2

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value	The estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value are as follows: September 30, 2020 December 31, 2019 (In millions) Carrying Amount Fair Value Carrying Amount Fair Value Assets: Notes receivable $ 10 $ 7 $ 11 $ 8 Liabilities: Long-term debt, including current portion (a) 5,854 6,309 5,956 6,504 (a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt in the Company's consolidated balance sheets
Fair value hierarchy for long-term debt	The following table presents the level within the fair value hierarchy for long-term debt, including current portion, as of September 30, 2020 and December 31, 2019: September 30, 2020 December 31, 2019 (In millions) Level 2 Level 3 Level 2 Level 3 Long-term debt, including current portion $ 6,305 $ 4 $ 6,388 $ 116
Assets and liabilities measured and recorded at fair value on the consolidated balance sheets on a recurring basis	The following tables present assets and liabilities measured and recorded at fair value on the Company's condensed consolidated balance sheets on a recurring basis and their level within the fair value hierarchy: September 30, 2020 (In millions) Total Level 1 Level 2 Level 3 Investments in securities (classified within other current and non-current assets) $ 15 $ — $ 15 $ — Nuclear trust fund investments: Cash and cash equivalents 25 25 — — U.S. government and federal agency obligations 49 48 1 — Federal agency mortgage-backed securities 92 — 92 — Commercial mortgage-backed securities 38 — 38 — Corporate debt securities 144 — 144 — Equity securities 402 402 — — Foreign government fixed income securities 6 — 6 — Other trust fund investments: U.S. government and federal agency obligations 1 1 — — Derivative assets: Commodity contracts 893 74 592 227 Measured using net asset value practical expedient: Equity securities — nuclear trust fund investments 72 Equity securities 7 Total assets $ 1,744 $ 550 $ 888 $ 227 Derivative liabilities: Commodity contracts $ 813 $ 70 $ 568 $ 175 Total liabilities $ 813 $ 70 $ 568 $ 175 December 31, 2019 (In millions) Total Level 1 Level 2 Level 3 Investments in securities (classified within other current and non-current assets) $ 20 $ — $ 20 $ — Nuclear trust fund investments: Cash and cash equivalents 17 17 — — U.S. government and federal agency obligations 68 68 — — Federal agency mortgage-backed securities 100 — 100 — Commercial mortgage-backed securities 29 — 29 — Corporate debt securities 109 — 109 — Equity securities 388 388 — — Foreign government fixed income securities 5 — 5 — Other trust fund investments: U.S. government and federal agency obligations 1 1 — — Derivative assets: Commodity contracts 1,170 84 893 193 Measured using net asset value practical expedient: Equity securities — nuclear trust fund investments 78 Equity securities 8 Total assets $ 1,993 $ 558 $ 1,156 $ 193 Derivative liabilities: Commodity contracts $ 1,103 $ 143 $ 805 $ 155 Total liabilities $ 1,103 $ 143 $ 805 $ 155
Reconciliation of beginning and ending balances for financial instruments that are recognized at fair value in the consolidated financial statements at least annually using significant unobservable inputs	The following tables reconcile, for the three and nine months ended September 30, 2020 and 2019, the beginning and ending balances for financial instruments that are recognized at fair value in the condensed consolidated financial statements, using significant unobservable inputs: Fair Value Measurement Using Significant Unobservable Inputs (Level 3) Three months ended September 30, 2020 Nine months ended September 30, 2020 (In millions) Derivatives (a) Derivatives (a) Beginning balance $ 152 $ 38 Total (losses) realized/unrealized— included in earnings (92) (18) Purchases (10) 6 Transfers into Level 3 (b) (11) 22 Transfers out of Level 3 (b) 13 4 Ending balance $ 52 $ 52 Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end $ 23 $ 50 (a) Consists of derivative assets and liabilities, net (b) Transfers into/out of Level 3 are related to the availability of external broker quotes and are valued as of the end of the reporting period. All transfers in/out are with Level 2 Fair Value Measurement Using Significant Unobservable Inputs (Level 3) Three months ended September 30, 2019 Nine months ended September 30, 2019 (In millions) Debt Securities Derivatives (a) Total Debt Securities Derivatives (a) Total Beginning balance $ 19 $ 97 $ 116 $ 19 $ 20 $ 39 Contracts added from acquisitions — (2) (2) — (3) (3) Total (losses)/gains realized/unrealized: Included in earnings — (18) (18) 1 (45) (44) Included in OCI (14) — (14) (14) — (14) Cash received — — — (1) — (1) Purchases — 38 38 — 26 26 Transfers into Level 3 (b) — (126) (126) — 4 4 Transfers out of Level 3 (b) — 24 24 — 11 11 Ending balance $ 5 $ 13 $ 18 $ 5 $ 13 $ 18 Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end — 44 44 1 13 14 (a) Consists of derivative assets and liabilities, net (b) Transfers into/out of Level 3 are related to the availability of external broker quotes and are valued as of the end of the reporting period. All transfers in/out are with Level 2
Significant unobservable inputs used developing fair values, Quantitative Information	The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of September 30, 2020 and December 31, 2019: September 30, 2020 Fair Value Input/Range (In millions) Assets Liabilities Valuation Technique Significant Unobservable Input Low High Weighted Average Power Contracts $ 196 $ 167 Discounted Cash Flow Forward Market Price (per MWh) $ 10 $ 116 $ 24 FTRs 31 8 Discounted Cash Flow Auction Prices (per MWh) (50) 43 0 $ 227 $ 175 December 31, 2019 Fair Value Input/Range (In millions) Assets Liabilities Valuation Technique Significant Unobservable Input Low High Weighted Average Power Contracts $ 151 $ 139 Discounted Cash Flow Forward Market Price (per MWh) $ 8 $ 218 $ 24 FTRs 42 16 Discounted Cash Flow Auction Prices (per MWh) (105) 213 0 $ 193 $ 155
Fair value inputs, sensitivity analysis	The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of September 30, 2020 and December 31, 2019: Significant Unobservable Input Position Change In Input Impact on Fair Value Measurement Forward Market Price Power Buy Increase/(Decrease) Higher/(Lower) Forward Market Price Power Sell Increase/(Decrease) Lower/(Higher) FTR Prices Buy Increase/(Decrease) Higher/(Lower) FTR Prices Sell Increase/(Decrease) Lower/(Higher)
Net counterparty credit exposure by industry sector and by counterparty credit quality	The following tables highlight net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market and NPNS, and non-derivative transactions. The exposure is shown net of collateral held and includes amounts net of receivables or payables. Net Exposure (a)(b) Category by Industry Sector (% of Total) Utilities, energy merchants, marketers and other 88 % Financial institutions 12 Total as of September 30, 2020 100 % Net Exposure (a)(b) Category by Counterparty Credit Quality (% of Total) Investment grade 59 % Non-investment grade/non-rated 41 Total as of September 30, 2020 100 % (a) Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices (b) The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long-term contracts

Nuclear Decommissioning Trust_2

Nuclear Decommissioning Trust Fund (Tables)	9 Months Ended
	Sep. 30, 2020
Regulated Operations [Abstract]
Summary of aggregate fair values and unrealized gains and losses for the securities held in the trust fund	The following table summarizes the aggregate fair values and unrealized gains and losses for the securities held in the trust funds, as well as information about the contractual maturities of those securities. As of September 30, 2020 As of December 31, 2019 (In millions, except maturities) Fair Value Unrealized Gains Unrealized Losses Weighted-average Maturities (In years) Fair Value Unrealized Gains Unrealized Losses Weighted-average Maturities (In years) Cash and cash equivalents $ 25 $ — $ — — $ 17 $ — $ — — U.S. government and federal agency obligations 49 7 — 12 68 4 — 11 Federal agency mortgage-backed securities 92 4 — 24 100 3 — 24 Commercial mortgage-backed securities 38 2 — 28 29 1 1 24 Corporate debt securities 144 12 — 12 109 6 — 11 Equity securities 474 321 1 — 466 324 — — Foreign government fixed income securities 6 1 — 10 5 — — 10 Total $ 828 $ 347 $ 1 $ 794 $ 338 $ 1
Summary of proceeds from sales of available-for-sale securities and the related realized gains and losses	The following table summarizes proceeds from sales of available-for-sale securities held in the trust funds and the related realized gains and losses from these sales. The cost of securities sold is determined on the specific identification method. Nine months ended September 30, (In millions) 2020 2019 Realized gains $ 22 $ 8 Realized losses (11) (7) Proceeds from sale of securities 318 271

Accounting for Derivative Ins_2

Accounting for Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional volume buy/(sell) of NRG's open derivative transactions broken out by commodity	The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by category, excluding those derivatives that qualified for the NPNS exception, as of September 30, 2020 and December 31, 2019. Option contracts are reflected using delta volume. Delta volume equals the notional volume of an option adjusted for the probability that the option will be in-the-money at its expiration date. Total Volume (In millions) Category Units September 30, 2020 December 31, 2019 Emissions Short Ton 1 3 Renewable Energy Certificates Certificates 3 1 Coal Short Ton 4 10 Natural Gas MMBtu (264) (181) Power MWh 51 38 Capacity MW/Day (1) (1)
Fair value within the derivative instrument valuation on the balance sheets	The following table summarizes the fair value within the derivative instrument valuation on the balance sheets: Fair Value Derivative Assets Derivative Liabilities (In millions) September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 Derivatives Not Designated as Cash Flow or Fair Value Hedges: Commodity contracts current $ 578 $ 860 $ 495 $ 781 Commodity contracts long-term 315 310 318 322 Total Derivatives Not Designated as Cash Flow or Fair Value Hedges $ 893 $ 1,170 $ 813 $ 1,103
Offsetting of derivatives by counterparty assets	The following table summarizes the offsetting of derivatives by counterparty master agreement level and collateral received or paid: Gross Amounts Not Offset in the Statement of Financial Position (In millions) Gross Amounts of Recognized Assets / Liabilities Derivative Instruments Cash Collateral (Held) / Posted Net Amount As of September 30, 2020 Commodity contracts: Derivative assets $ 893 $ (738) $ (1) $ 154 Derivative liabilities (813) 738 — (75) Total commodity contracts $ 80 $ — $ (1) $ 79 Gross Amounts Not Offset in the Statement of Financial Position (In millions) Gross Amounts of Recognized Assets / Liabilities Derivative Instruments Cash Collateral (Held) / Posted Net Amount As of December 31, 2019 Commodity contracts: Derivative assets $ 1,170 $ (909) $ (7) $ 254 Derivative liabilities (1,103) 909 73 (121) Total commodity contracts $ 67 $ — $ 66 $ 133
Offsetting of derivatives by counterparty, liabilities	The following table summarizes the offsetting of derivatives by counterparty master agreement level and collateral received or paid: Gross Amounts Not Offset in the Statement of Financial Position (In millions) Gross Amounts of Recognized Assets / Liabilities Derivative Instruments Cash Collateral (Held) / Posted Net Amount As of September 30, 2020 Commodity contracts: Derivative assets $ 893 $ (738) $ (1) $ 154 Derivative liabilities (813) 738 — (75) Total commodity contracts $ 80 $ — $ (1) $ 79 Gross Amounts Not Offset in the Statement of Financial Position (In millions) Gross Amounts of Recognized Assets / Liabilities Derivative Instruments Cash Collateral (Held) / Posted Net Amount As of December 31, 2019 Commodity contracts: Derivative assets $ 1,170 $ (909) $ (7) $ 254 Derivative liabilities (1,103) 909 73 (121) Total commodity contracts $ 67 $ — $ 66 $ 133
Pre-tax effects of economic hedges that have not been designated as cash flow hedges, ineffectiveness on cash flow hedges and trading activity on the Company's statement of operations	The following table summarizes the pre-tax effects of economic hedges that have not been designated as cash flow hedges or fair value hedges and trading activity on the Company's statement of operations. The effect of commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense. (In millions) Three months ended September 30, Nine months ended September 30, Unrealized mark-to-market results 2020 2019 2020 2019 Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges $ (101) $ (118) $ (62) $ (88) Reversal of acquired (gain)/loss positions related to economic hedges (2) (3) 2 (4) Net unrealized (losses)/gains on open positions related to economic hedges (15) 57 73 69 Total unrealized mark-to-market (losses)/gains for economic hedging activities (118) (64) 13 (23) Reversal of previously recognized unrealized (gains) on settled positions related to trading activity (7) (1) (14) (8) Net unrealized gains/(losses) on open positions related to trading activity 2 (3) 19 23 Total unrealized mark-to-market (losses)/gains for trading activity (5) (4) 5 15 Total unrealized (losses)/gains $ (123) $ (68) $ 18 $ (8) Three months ended September 30, Nine months ended September 30, (In millions) 2020 2019 2020 2019 Unrealized gains/(losses) included in operating revenues $ 34 $ (214) $ 83 $ 66 Unrealized (losses)/gains included in cost of operations (157) 146 (65) (74) Total impact to statement of operations — energy commodities $ (123) $ (68) $ 18 $ (8) Total impact to statement of operations — interest rate contracts $ — $ — $ — $ (38)

Long-term Debt (Tables)

Long-term Debt (Tables)	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-term debt	Long-term debt consisted of the following: (In millions, except rates) September 30, 2020 December 31, 2019 Interest rate % Recourse debt: Senior Notes, due 2026 $ 1,000 $ 1,000 7.250 Senior Notes, due 2027 1,230 1,230 6.625 Senior Notes, due 2028 821 821 5.750 Senior Notes, due 2029 733 733 5.250 Convertible Senior Notes, due 2048 (a) 575 575 2.750 Senior Secured First Lien Notes, due 2024 600 600 3.750 Senior Secured First Lien Notes, due 2029 500 500 4.450 Revolving Credit Facility — 83 L + 1.750 Tax-exempt bonds 466 466 1.30 - 6.00 Subtotal recourse debt 5,925 6,008 Non-recourse debt: Other 4 34 various Subtotal all non-recourse debt 4 34 Subtotal long-term debt (including current maturities) 5,929 6,042 Less current maturities (3) (88) Less debt issuance costs (59) (65) Discounts (75) (86) Total long-term debt $ 5,792 $ 5,803 (a) As of the ex-dividend date of October 30, 2020, the Convertible Notes were convertible at a price of $46.24, which is equivalent to a conversion rate of approximately 21.62 shares of common stock per $1,000 principal amount

Investments Accounted for Usi_2

Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs (Tables)	9 Months Ended
	Sep. 30, 2020
Variable Interest Entities Disclosure [Abstract]
Financial Information for Consolidated VIEs	The summarized financial information for the Company's consolidated VIEs consisted of the following: (In millions) September 30, 2020 December 31, 2019 Accounts receivable $ 887 $ — Other current assets 4 3 Net property, plant and equipment — 71 Other long-term assets 25 27 Total assets 916 101 Current liabilities 5 4 Long-term debt — 24 Other long-term liabilities 27 8 Total liabilities 32 36 Redeemable noncontrolling interest — 20 Net assets less noncontrolling interest $ 884 $ 45

Changes in Capital Structure (T

Changes in Capital Structure (Tables)	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Changes in NRG's common shares issued and outstanding	As of September 30, 2020 and December 31, 2019, the Company had 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common stock issued and outstanding: Issued Treasury Outstanding Balance as of December 31, 2019 421,890,790 (172,894,601) 248,996,189 Shares issued under LTIPs 1,150,559 — 1,150,559 Shares issued under ESPP — 63,455 63,455 Shares repurchased — (6,062,783) (6,062,783) Balance as of September 30, 2020 423,041,349 (178,893,929) 244,147,420 Shares issued under LTIPs 5,400 — 5,400 Shares issued under ESPP — 68,014 68,014 Balance as of November 5, 2020 423,046,749 (178,825,915) 244,220,834
Shares Repurchased	The following repurchases have been made during the nine months ended September 30, 2020: Total number of shares purchased Average price paid per share Amounts paid for shares purchased (in millions) 2020 repurchases: Repurchases 6,062,783 $ 197 Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances (a) 711,248 27 Total Share Repurchases during the nine months ended September 30, 2020 6,774,031 $33.05 $ 224 (a) NRG elected to pay cash for tax withholding on equity awards instead of issuing actual shares to management. The average price per equivalent shares withheld was $38.23

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Reconciliation of NRG's basic and diluted earnings per share	The reconciliation of NRG's basic and diluted income per share is shown in the following table: Three months ended September 30, Nine months ended September 30, (In millions, except per share data) 2020 2019 2020 2019 Basic income per share: Net income available to common shareholders $ 249 $ 372 $ 683 $ 1,055 Weighted average number of common shares outstanding - basic 244 254 246 266 Income per weighted average common share — basic $ 1.02 $ 1.46 $ 2.78 $ 3.97 Diluted income per share: Net income available to common shareholders $ 249 $ 372 $ 683 $ 1,055 Weighted average number of common shares outstanding - basic 244 254 246 266 Incremental shares attributable to the issuance of equity compensation (treasury stock method) 1 2 1 2 Weighted average number of common shares outstanding - dilutive 245 256 247 268 Income per weighted average common share — diluted $ 1.02 $ 1.45 $ 2.77 $ 3.94

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Schedule of segment reporting information, by segment	Three months ended September 30, 2020 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 1,992 $ 693 $ 122 $ — $ 2 $ 2,809 Depreciation and amortization 49 34 9 7 — 99 Impairment losses — — 29 — — 29 Equity in earnings of unconsolidated affiliates — — 36 — — 36 Income/(loss) from continuing operations before income taxes 288 149 17 (113) — 341 Income/(loss) from continuing operations 288 149 17 (205) — 249 Net income/(loss) attributable to NRG Energy, Inc $ 288 $ 149 $ 17 $ (205) $ — $ 249 Three months ended September 30, 2019 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 2,208 $ 679 $ 111 $ — $ (2) $ 2,996 Depreciation and amortization 45 31 8 7 — 91 Equity in earnings of unconsolidated affiliates 1 — 28 — — 29 Income/(loss) from continuing operations before income taxes 348 121 16 (106) 1 380 Income/(loss) from continuing operations 348 121 15 (111) 1 374 Loss from discontinued operations, net of tax — — — (2) — (2) Net income/(loss) 348 121 15 (113) 1 372 Net income/(loss) attributable to NRG Energy, Inc. $ 348 $ 121 $ 15 $ (113) $ 1 $ 372 Nine months ended September 30, 2020 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 4,928 $ 1,798 $ 341 $ — $ (1) $ 7,066 Depreciation and amortization 167 100 25 26 — 318 Impairment losses — — 29 — — 29 Gain on sale of assets — — 1 5 — 6 Equity in (losses)/earnings of unconsolidated affiliates (3) — 40 — — 37 Income/(loss) from continuing operations before income taxes 800 319 84 (304) — 899 Income/(loss) from continuing operations 800 319 83 (519) — 683 Net income/(loss) attributable to NRG Energy, Inc $ 800 $ 319 $ 83 $ (519) $ — $ 683 Nine months ended September 30, 2019 (In millions) Texas East West/Other Corporate Eliminations Total Operating revenues $ 5,511 $ 1,812 $ 310 $ — $ (7) $ 7,626 Depreciation and amortization 125 87 26 23 — 261 Reorganization costs 5 — — 11 — 16 Gain on sale of assets — 1 — 1 — 2 Equity in (losses)/earnings of unconsolidated affiliates (5) — 13 — — 8 Loss on debt extinguishment, net — — — (47) — (47) Income/(loss) from continuing operations before income taxes 757 280 11 (382) — 666 Income/(loss) from continuing operations 757 280 10 (390) — 657 Income from discontinued operations, net of tax — — — 399 — 399 Net income 757 280 10 9 — 1,056 Net income attributable to NRG Energy, Inc. $ 757 $ 280 $ 9 $ 9 $ — $ 1,055

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	The income tax provision consisted of the following: Three months ended September 30, Nine months ended September 30, (In millions, except rates) 2020 2019 2020 2019 Income from continuing operations before income taxes $ 341 $ 380 $ 899 $ 666 Income tax expense from continuing operations 92 6 216 9 Effective income tax rate 27.0 % 1.6 % 24.0 % 1.4 %

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Summary of NRG's Material Related Party Transactions	The following table summarizes NRG's material related party transactions with third party affiliates: Three months ended September 30, Nine months ended September 30, (In millions) 2020 2019 2020 2019 Revenues from Related Parties Included in Operating Revenues Gladstone $ 1 $ 2 $ 2 $ 3 Ivanpah (a) 11 7 34 25 Midway-Sunset 1 2 4 4 Total $ 13 $ 11 $ 40 $ 32 (a) Also includes fees under project management agreements with each project company

Condensed Consolidating Finan_2

Condensed Consolidating Financial Information (Tables)	9 Months Ended
	Sep. 30, 2020
Condensed Consolidating Financial Information Disclosure [Abstract]
Schedule of Guarantor Subsidiaries	Unless otherwise noted below, each of the following guarantor subsidiaries fully and unconditionally guaranteed the Senior Notes, Convertible Senior Notes and Senior Secured Notes as of September 30, 2020: Ace Energy, Inc. NRG Distributed Energy Resources Holdings LLC Reliant Energy Retail Services, LLC Allied Home Warranty GP LLC NRG Distributed Generation PR LLC RERH Holdings, LLC Allied Warranty LLC NRG Dunkirk Operations Inc. Saguaro Power LLC Arthur Kill Power LLC NRG ECOKAP Holdings LLC SGE Energy Sourcing, LLC Astoria Gas Turbine Power LLC NRG El Segundo Operations Inc. SGE Texas Holdco, LLC BidURenergy, Inc. NRG Energy Labor Services LLC Somerset Operations Inc. Cabrillo Power I LLC NRG Energy Services Group LLC Somerset Power LLC Cabrillo Power II LLC NRG Energy Services LLC Stream Energy Columbia, LLC Carbon Management Solutions LLC NRG Generation Holdings Inc. Stream Energy Delaware, LLC Cirro Energy Services, Inc. NRG Greenco LLC Stream Energy Illinois, LLC Cirro Group, Inc. NRG Home & Business Solutions LLC Stream Energy Maryland, LLC Connecticut Jet Power LLC NRG Home Services LLC Stream Energy New Jersey, LLC Devon Power LLC NRG Home Solutions LLC Stream Energy New York, LLC Dunkirk Power LLC NRG Home Solutions Product LLC Stream Energy Pennsylvania, LLC Eastern Sierra Energy Company LLC NRG Homer City Services LLC Stream Georgia Gas SPE, LLC El Segundo Power II LLC NRG HQ DG LLC Stream Ohio Gas & Electric, LLC El Segundo Power, LLC NRG Huntley Operations Inc. Stream SPE GP, LLC Energy Alternatives Wholesale, LLC NRG Identity Protect LLC Stream SPE, Ltd. Energy Choice Solutions LLC NRG Ilion Limited Partnership Texas Genco GP, LLC Energy Plus Holdings LLC NRG Ilion LP LLC Texas Genco Holdings, Inc. Energy Plus Natural Gas LLC NRG International LLC Texas Genco LP, LLC Energy Protection Insurance Company NRG Maintenance Services LLC Texas Genco Services, LP Everything Energy LLC NRG Mextrans Inc. US Retailers LLC Forward Home Security, LLC NRG Middletown Operations Inc. Vienna Operations Inc. GCP Funding Company, LLC NRG Montville Operations Inc. Vienna Power LLC Green Mountain Energy Company NRG North Central Operations Inc. WCP (Generation) Holdings LLC Gregory Partners, LLC NRG Norwalk Harbor Operations Inc. West Coast Power LLC Gregory Power Partners LLC NRG Operating Services, Inc. XOOM Alberta Holdings, LLC Huntley Power LLC NRG Oswego Harbor Power Operations Inc. XOOM British Columbia Holdings, LLC Independence Energy Alliance LLC NRG Portable Power LLC XOOM Energy California, LLC Independence Energy Group LLC NRG Power Marketing LLC XOOM Energy Connecticut, LLC Independence Energy Natural Gas LLC NRG Reliability Solutions LLC XOOM Energy Delaware, LLC Indian River Operations Inc. NRG Renter's Protection LLC XOOM Energy Georgia, LLC Indian River Power LLC NRG Retail LLC XOOM Energy Global Holdings, LLC Meriden Gas Turbines LLC NRG Retail Northeast LLC XOOM Energy Illinois LLC Middletown Power LLC NRG Rockford Acquisition LLC XOOM Energy Indiana, LLC Montville Power LLC NRG Saguaro Operations Inc. XOOM Energy Kentucky, LLC NEO Corporation NRG Security LLC XOOM Energy Maine, LLC New Genco GP, LLC NRG Services Corporation XOOM Energy Maryland, LLC Norwalk Power LLC NRG SimplySmart Solutions LLC XOOM Energy Massachusetts, LLC NRG Advisory Services LLC NRG South Central Operations Inc. XOOM Energy Michigan, LLC NRG Affiliate Services Inc. NRG South Texas LP XOOM Energy New Hampshire, LLC NRG Arthur Kill Operations Inc. NRG Texas Gregory LLC XOOM Energy New Jersey, LLC NRG Astoria Gas Turbine Operations Inc. NRG Texas Holding Inc. XOOM Energy New York, LLC NRG Business Services LLC NRG Texas LLC XOOM Energy Ohio, LLC NRG Cabrillo Power Operations Inc. NRG Texas Power LLC XOOM Energy Pennsylvania, LLC NRG California Peaker Operations LLC NRG Warranty Services LLC XOOM Energy Rhode Island, LLC NRG Cedar Bayou Development Company, LLC NRG West Coast LLC XOOM Energy Texas, LLC NRG Connected Home LLC NRG Western Affiliate Services Inc. XOOM Energy Virginia, LLC NRG Construction LLC Oswego Harbor Power LLC XOOM Energy Washington D.C., LLC NRG Curtailment Solutions, Inc. Reliant Energy Northeast LLC XOOM Energy, LLC NRG Development Company Inc. Reliant Energy Power Supply, LLC XOOM Ontario Holdings, LLC NRG Devon Operations Inc. Reliant Energy Retail Holdings, LLC XOOM Solar, LLC NRG Dispatch Services LLC
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS	NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the three months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 2,513 $ 297 $ — $ (1) $ 2,809 Operating Costs and Expenses Cost of operations 1,796 230 9 (1) 2,034 Depreciation and amortization 72 21 6 — 99 Impairment losses — 29 — — 29 Selling, general and administrative costs 154 7 92 — 253 Development costs — (1) 2 — 1 Total operating costs and expenses 2,022 286 109 (1) 2,416 Operating Income/(Loss) 491 11 (109) — 393 Other Income/(Expense) Equity in earnings of consolidated subsidiaries — — 540 (540) — Equity in earnings of unconsolidated affiliates — 36 — — 36 Other income, net 4 2 5 — 11 Interest expense (3) — (96) — (99) Total other income/(expense) 1 38 449 (540) (52) Income from Continuing Operations Before Income Taxes 492 49 340 (540) 341 Income tax expense — 1 91 — 92 Net Income $ 492 $ 48 $ 249 $ (540) $ 249 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the nine months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 6,346 $ 730 $ — $ (10) $ 7,066 Operating Costs and Expenses Cost of operations 4,357 586 (8) (10) 4,925 Depreciation and amortization 232 60 26 — 318 Impairment losses — 29 — — 29 Selling, general and administrative costs 431 19 220 — 670 Reorganization costs — — 3 — 3 Development costs — — 6 — 6 Total operating costs and expenses 5,020 694 247 (10) 5,951 Gain on sale of assets — 1 5 — 6 Operating Income/(Loss) 1,326 37 (242) — 1,121 Other Income/(Expense) Equity in earnings of consolidated subsidiaries 6 — 1,385 (1,391) — Equity in earnings of unconsolidated affiliates — 37 — — 37 Impairment losses on investments — (18) — — (18) Other income, net 14 6 32 — 52 Loss on debt extinguishment, net — — (1) — (1) Interest expense (12) (3) (277) — (292) Total other income/(expense) 8 22 1,139 (1,391) (222) Income from Continuing Operations Before Income Taxes 1,334 59 897 (1,391) 899 Income tax expense — 2 214 — 216 Net Income $ 1,334 $ 57 $ 683 $ (1,391) $ 683 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the three months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 2,473 $ 525 $ — $ (2) $ 2,996 Operating Costs and Expenses Cost of operations 1,728 421 6 (2) 2,153 Depreciation and amortization 52 32 7 — 91 Selling, general and administrative costs 132 28 50 — 210 Reorganization costs — — 1 — 1 Development costs — — 1 — 1 Total operating costs and expenses 1,912 481 65 (2) 2,456 Operating Income/(Loss) 561 44 (65) — 540 Other Income/(Expense) Equity in earnings of consolidated subsidiaries 20 — 537 (557) — Equity in earnings of unconsolidated affiliates — 29 — — 29 Impairment losses on investments — (101) (6) — (107) Other income, net 11 1 5 — 17 Interest expense (4) (3) (92) — (99) Total other income/(expense) 27 (74) 444 (557) (160) Income/(Loss) from Continuing Operations Before Income Taxes 588 (30) 379 (557) 380 Income tax expense — 1 5 — 6 Income/(Loss) from Continuing Operations 588 (31) 374 (557) 374 Loss from discontinued operations, net of income tax — — (2) — (2) Net Income Attributable to NRG Energy, Inc. $ 588 $ (31) $ 372 $ (557) $ 372 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS For the nine months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Operating Revenues Total operating revenues $ 6,382 $ 1,252 $ — $ (8) $ 7,626 Operating Costs and Expenses Cost of operations 4,676 956 25 (8) 5,649 Depreciation and amortization 157 81 23 — 261 Impairment losses 1 — — — 1 Selling, general and administrative costs 366 56 193 — 615 Reorganization costs — — 16 — 16 Development costs — 1 4 — 5 Total operating costs and expenses 5,200 1,094 261 (8) 6,547 Gain on sale of assets 1 1 — — 2 Operating Income/(Loss) 1,183 159 (261) — 1,081 Other Income/(Expense) Equity in earnings of consolidated subsidiaries 32 — 1,266 (1,298) — Equity in earnings of unconsolidated affiliates — 8 — — 8 Impairment losses on investments — (101) (6) — (107) Other income, net 19 10 20 — 49 Loss on debt extinguishment, net — — (47) — (47) Interest expense (11) (12) (295) — (318) Total other income/(expense) 40 (95) 938 (1,298) (415) Income from Continuing Operations Before Income Taxes 1,223 64 677 (1,298) 666 Income tax expense — 2 7 — 9 Income from Continuing Operations 1,223 62 670 (1,298) 657 Income from discontinued operations, net of income tax 9 5 385 — 399 Net Income 1,232 67 1,055 (1,298) 1,056 Less: Net income attributable to noncontrolling interest and redeemable noncontrolling interest — 1 — — 1 Net Income Attributable to NRG Energy, Inc. $ 1,232 $ 66 $ 1,055 $ (1,298) $ 1,055 (a) All significant intercompany transactions have been eliminated in consolidation
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME /(LOSS)	NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) For the three months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income $ 492 $ 48 $ 249 $ (540) $ 249 Other Comprehensive Income Foreign currency translation adjustments, net 5 3 4 (8) 4 Defined benefit plans, net 2 — — (2) — Other comprehensive income 7 3 4 (10) 4 Comprehensive Income $ 499 $ 51 $ 253 $ (550) $ 253 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME For the nine months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income $ 1,334 $ 57 $ 683 $ (1,391) $ 683 Other Comprehensive Income Foreign currency translation adjustments, net 2 1 2 (3) 2 Defined benefit plans, net 5 — — (5) — Other comprehensive income 7 1 2 (8) 2 Comprehensive Income $ 1,341 $ 58 $ 685 $ (1,399) $ 685 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME For the three months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income/(Loss) $ 588 $ (31) $ 372 $ (557) $ 372 Other Comprehensive Loss Foreign currency translation adjustments, net (5) (4) (4) 9 (4) Available-for-sale securities, net — — (14) — (14) Defined benefit plans, net (40) — (41) 40 (41) Other comprehensive loss (45) (4) (59) 49 (59) Comprehensive Income/(Loss) $ 543 $ (35) $ 313 $ (508) $ 313 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME For the nine months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Net Income $ 1,232 $ 67 $ 1,055 $ (1,298) $ 1,056 Other Comprehensive Loss Foreign currency translation adjustments, net (5) (4) (4) 9 (4) Available-for-sale securities, net — — (13) — (13) Defined benefit plans, net (40) — (47) 40 (47) Other comprehensive loss (45) (4) (64) 49 (64) Comprehensive Income 1,187 63 991 (1,249) 992 Less: Comprehensive income attributable to redeemable noncontrolling interest — 1 — — 1 Comprehensive Income Attributable to NRG Energy, Inc. $ 1,187 $ 62 $ 991 $ (1,249) $ 991 (a) All significant intercompany transactions have been eliminated in consolidation
CONDENSED CONSOLIDATING BALANCE SHEETS	NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEETS September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated ASSETS Current Assets Cash and cash equivalents $ — $ 23 $ 674 $ — $ 697 Funds deposited by counterparties 15 — — — 15 Restricted cash 5 — 1 — 6 Accounts receivable, net 650 1,034 805 (1,363) 1,126 Inventory 253 77 — — 330 Derivative instruments 582 14 — (18) 578 Cash collateral paid in support of energy risk management activities 74 3 — — 77 Prepayments and other current assets 238 16 4 — 258 Total current assets 1,817 1,167 1,484 (1,381) 3,087 Property, plant and equipment, net 1,270 1,159 144 — 2,573 Other Assets Investment in subsidiaries 28 — 4,981 (5,009) — Equity investments in affiliates — 376 — — 376 Operating lease right-of-use assets, net 68 167 110 — 345 Goodwill 400 179 — — 579 Intangible assets, net 684 37 — — 721 Nuclear decommissioning trust fund 828 — — — 828 Derivative instruments 315 10 — (10) 315 Deferred income taxes 435 (32) 2,684 — 3,087 Other non-current assets 168 110 36 — 314 Total other assets 2,926 847 7,811 (5,019) 6,565 Total Assets $ 6,013 $ 3,173 $ 9,439 $ (6,400) $ 12,225 LIABILITIES AND STOCKHOLDERS’ EQUITY Current Liabilities Current portion of long-term debt $ 3 $ — $ — $ — $ 3 Current portion of operating lease liabilities 18 33 18 — 69 Accounts payable 933 144 1,039 (1,363) 753 Derivative instruments 505 8 — (18) 495 Cash collateral received in support of energy risk management activities 15 — — — 15 Accrued expenses and other current liabilities 275 71 305 — 651 Total current liabilities 1,749 256 1,362 (1,381) 1,986 Other Liabilities Long-term debt 245 — 5,547 — 5,792 Non-current operating lease liabilities 56 134 107 — 297 Nuclear decommissioning reserve 311 — — — 311 Nuclear decommissioning trust liability 508 — — — 508 Derivative instruments 326 2 — (10) 318 Deferred income taxes — 17 — — 17 Other non-current liabilities 307 266 489 — 1,062 Total other liabilities 1,753 419 6,143 (10) 8,305 Total Liabilities 3,502 675 7,505 (1,391) 10,291 Stockholders’ Equity 2,511 2,498 1,934 (5,009) 1,934 Total Liabilities and Stockholders’ Equity $ 6,013 $ 3,173 $ 9,439 $ (6,400) $ 12,225 (a) All significant intercompany transactions have been eliminated in consolidation CONDENSED CONSOLIDATING BALANCE SHEETS December 31, 2019 (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated ASSETS Current Assets Cash and cash equivalents $ — $ 20 $ 325 $ — $ 345 Funds deposited by counterparties 32 — — — 32 Restricted cash 5 1 2 — 8 Accounts receivable, net 1,293 239 233 (740) 1,025 Inventory 272 111 — — 383 Derivative instruments 856 45 — (41) 860 Cash collateral paid in support of energy risk management activities 182 8 — — 190 Prepayments and other current assets 170 8 67 — 245 Total current assets 2,810 432 627 (781) 3,088 Property, plant and equipment, net 1,483 952 158 — 2,593 Other Assets Investment in subsidiaries 710 — 4,785 (5,495) — Equity investments in affiliates — 388 — — 388 Operating lease right-of-use assets, net 81 261 122 — 464 Goodwill 359 220 — — 579 Intangible assets, net 375 414 — — 789 Nuclear decommissioning trust fund 794 — — — 794 Derivative instruments 308 15 — (13) 310 Deferred income taxes 421 (19) 2,884 — 3,286 Other non-current assets 145 30 65 — 240 Total other assets 3,193 1,309 7,856 (5,508) 6,850 Total Assets $ 7,486 $ 2,693 $ 8,641 $ (6,289) $ 12,531 LIABILITIES AND STOCKHOLDERS’ EQUITY Current Liabilities Current portion of long-term debt $ — $ 5 $ 83 $ — $ 88 Current portion of operating lease liabilities 20 32 21 — 73 Accounts payable 918 141 403 (740) 722 Derivative instruments 797 25 — (41) 781 Cash collateral received in support of energy risk management activities 32 — — — 32 Accrued expenses and other current liabilities 280 44 339 — 663 Total current liabilities 2,047 247 846 (781) 2,359 Other Liabilities Long-term debt 302 28 5,473 — 5,803 Non-current operating lease liabilities 64 301 118 — 483 Nuclear decommissioning reserve 298 — — — 298 Nuclear decommissioning trust liability 487 — — — 487 Derivative instruments 334 1 — (13) 322 Deferred income taxes — 17 — — 17 Other non-current liabilities 399 153 532 — 1,084 Total other liabilities 1,884 500 6,123 (13) 8,494 Total Liabilities 3,931 747 6,969 (794) 10,853 Redeemable noncontrolling interest in subsidiaries — 20 — — 20 Stockholders’ Equity 3,555 1,926 1,672 (5,495) 1,658 Total Liabilities and Stockholders’ Equity $ 7,486 $ 2,693 $ 8,641 $ (6,289) $ 12,531 (a) All significant intercompany transactions have been eliminated in consolidation
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS	NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS For the nine months ended September 30, 2020 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Cash Flows from Operating Activities Net income $ 1,334 $ 57 $ 683 $ (1,391) $ 683 Adjustments to reconcile net income/(loss) to cash provided by operating activities: Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries (6) 6 (1,385) 1,391 6 Depreciation and amortization 232 60 26 — 318 Accretion of asset retirement obligations 19 27 — — 46 Provision for credit losses 66 8 — — 74 Amortization of nuclear fuel 40 — — — 40 Amortization of financing costs and debt discount/premiums — — 23 — 23 Loss on debt extinguishment, net — — 1 — 1 Amortization of emission allowances and energy credits 46 14 — — 60 Amortization of unearned equity compensation — — 17 — 17 Net gain on sale of assets and disposal of assets (16) (1) (5) — (22) Impairment losses — 47 — — 47 Changes in derivative instruments (27) 20 — — (7) Changes in deferred income taxes and liability for uncertain tax benefits (52) 11 243 — 202 Changes in collateral deposits in support of energy risk management activities 91 5 — — 96 Changes in nuclear decommissioning trust liability 39 — — — 39 Changes in other working capital 355 (923) 331 — (237) Net Cash Provided/(Used) by Operating Activities 2,121 (669) (66) — 1,386 Cash Flows from Investing Activities Intercompany dividends — — 2,591 (2,591) — Payments for acquisitions of businesses (15) (262) — — (277) Capital expenditures (115) (28) (24) — (167) Net purchases of emission allowances (15) — — — (15) Investments in nuclear decommissioning trust fund securities (360) — — — (360) Proceeds from the sale of nuclear decommissioning trust fund securities 318 — — — 318 Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees 8 2 5 — 15 Net contributions to investments in unconsolidated affiliates — 2 — — 2 Net Cash (Used)/Provided by Investing Activities (179) (286) 2,572 (2,591) (484) Cash Flows from Financing Activities Intercompany dividends and transfers (1,894) 964 (1,661) 2,591 — Payments of dividends to common stockholders — — (221) — (221) Payments for share repurchase activity — — (229) — (229) Purchase of and distributions to noncontrolling interests from subsidiaries — (2) — — (2) Proceeds from issuance of common stock — — 1 — 1 Proceeds from issuance of long-term debt — — 59 — 59 Payment of debt issuance costs — — (24) — (24) Repayments of long-term debt (59) (3) — — (62) Net repayment of Revolving Credit Facility — — (83) — (83) Other (6) — — — (6) Net Cash (Used)/Provided by Financing Activities (1,959) 959 (2,158) 2,591 (567) Effect of exchange rate changes on cash and cash equivalents — (2) — — (2) Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash (17) 2 348 — 333 Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period 37 21 327 — 385 Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period $ 20 $ 23 $ 675 $ — $ 718 (a) All significant intercompany transactions have been eliminated in consolidation NRG ENERGY, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS For the nine months ended September 30, 2019 (Unaudited) (In millions) Guarantor Subsidiaries Non-Guarantor Subsidiaries NRG Energy, Inc. Eliminations (a) Consolidated Cash Flows from Operating Activities Net income $ 1,232 $ 67 $ 1,055 $ (1,298) $ 1,056 Income from discontinued operations 9 5 385 — 399 Income from continuing operations 1,223 62 670 (1,298) 657 Adjustments to reconcile net income to cash provided by operating activities: Distributions from and equity in losses of unconsolidated affiliates and consolidated subsidiaries (32) (5) (1,266) 1,298 (5) Depreciation and amortization 156 82 23 — 261 Accretion of asset retirement obligations 25 6 — — 31 Provision for credit losses 72 11 4 — 87 Amortization of nuclear fuel 40 — — — 40 Amortization of financing costs and debt discount/premiums — — 20 — 20 Loss on debt extinguishment, net — — 47 — 47 Amortization of emission allowances and energy credits 21 7 — — 28 Amortization of unearned equity compensation — — 15 — 15 Net loss on sale of assets and disposal of assets (25) 2 3 — (20) Impairment losses 1 101 6 — 108 Changes in derivative instruments 10 (12) 38 — 36 Changes in deferred income taxes and liability for uncertain tax benefits — (1) (2) — (3) Changes in collateral deposits in support of energy risk management activities 136 (7) — — 129 Changes in nuclear decommissioning trust liability 27 — — — 27 Changes in other working capital (401) (123) (45) — (569) Cash provided/(used) by continuing operations 1,253 123 (487) — 889 Cash provided/(used) by discontinued operations 17 (9) — — 8 Net Cash Provided/(Used) by Operating Activities 1,270 114 (487) — 897 Cash Flows from Investing Activities Intercompany dividends — — 3,866 (3,866) — Payments for acquisitions of businesses (348) — — — (348) Capital expenditures (135) (23) (25) — (183) Decrease in notes receivable — — 2 — 2 Net purchases of emission allowances 14 — — — 14 Investments in nuclear decommissioning trust fund securities (295) — — — (295) Proceeds from the sale of nuclear decommissioning trust fund securities 271 — — — 271 Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees 1 400 892 — 1,293 Net distributions from investments in unconsolidated affiliates — (94) — (94) Contributions to discontinued operations — (44) — — (44) Cash (used)/provided by continuing operations (492) 239 4,735 (3,866) 616 Cash used by discontinued operations — (2) — — (2) Net Cash (Used)/Provided by Investing Activities (492) 237 4,735 (3,866) 614 Cash Flows from Financing Activities Intercompany dividends and transfers (824) (317) (2,725) 3,866 — Payment of dividends to common stockholders — — (24) — (24) Payments for share repurchase activity — — (1,322) — (1,322) Payments for debt extinguishment — — (24) — (24) Net distributions to noncontrolling interests from subsidiaries — (1) — — (1) Proceeds from issuance of common stock — — 3 — 3 Proceeds from issuance of long-term debt — — 1,833 — 1,833 Payment of debt issuance costs — — (34) — (34) Payments for long-term debt — (55) (2,432) — (2,487) Net proceeds of Revolving Credit Facility — — 215 — 215 Cash used by continuing operations (824) (373) (4,510) 3,866 (1,841) Cash provided by discontinued operations — 43 — — 43 Net Cash Used by Financing Activities (824) (330) (4,510) 3,866 (1,798) Change in cash from discontinued operations 17 32 — — 49 Net Decrease in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash (63) (11) (262) — (336) Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period 95 38 480 — 613 Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period $ 32 $ 27 $ 218 $ — $ 277 (a) All significant intercompany transactions have been eliminated in consolidation

Nature of Business and Basis _2

Nature of Business and Basis of Presentation - General (Details) MW in Thousands	Sep. 30, 2020MW
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Generation capacity (in MW)	23

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Other Balance Sheet Information (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Property, plant and equipment accumulated depreciation	$ 1,901	$ 1,752
Intangible assets accumulated amortization	$ 1,314	$ 1,262

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 47	$ 43
Provision for credit losses	26	74	$ 87
Write-offs	(19)	(71)
Recoveries collected	3	11
Ending balance	$ 57	$ 57

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Restricted Cash (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 697	$ 345
Funds deposited by counterparties	15	32
Restricted cash	6	8
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$ 718	$ 385	$ 277	$ 613

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Pension Plan Contributions (Details) - Pension Plan - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Anticipated employer contribution		$ 56
Cash contributions	$ 12

Revenue Recognition - Performan

Revenue Recognition - Performance Obligations Expected Timing of Satisfaction (Details) $ in Millions	Sep. 30, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated future fixed fee performance obligations	$ 188
Revenue remaining performance obligation period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated future fixed fee performance obligations	$ 648
Revenue remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated future fixed fee performance obligations	$ 281
Revenue remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated future fixed fee performance obligations	$ 43
Revenue remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated future fixed fee performance obligations	$ 8
Revenue remaining performance obligation period	1 year

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 2,684	$ 2,504	$ 6,733	$ 6,066
Mark-to-market for economic hedging activities	(118)	(64)	13	(23)
Operating revenues	2,809	2,996	7,066	7,626
Lease revenue	5	5	15	15
Derivative revenue	(123)	(68)	18	(8)
Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(3)	0	(6)	(5)
Operating revenues	2	(2)	(1)	(7)
Lease revenue	0	0	0	0
Retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2,302	2,488	5,795	5,762
Retail revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	(1)	(3)
Energy revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	222	426	429	952
Derivative revenue	35	652	99	1,352
Energy revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	(1)	(1)	0
Derivative revenue	(1)	(2)	(3)	(2)
Capacity revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	174	194	518	551
Derivative revenue	49	34	114	82
Capacity revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Derivative revenue	0	0	0	1
Derivative revenue
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	39	(210)	78	51
Derivative revenue	120	487	318	1,545
Derivative revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	5	0	8	(1)
Derivative revenue	5	(2)	5	(2)
Other revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	72	98	246	310
Other revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(4)	(1)	(7)	(3)
Total operating revenue
Disaggregation of Revenue [Line Items]
Operating revenues	2,809	2,996	7,066	7,626
Total operating revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Operating revenues	2	(2)	(1)	(7)
Other revenue, derivative
Disaggregation of Revenue [Line Items]
Derivative revenue	(3)	11	27	60
Other revenue, derivative | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Derivative revenue	1	0	0	0
Mass customers | Retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,987	2,072	4,929	4,780
Mass customers | Retail revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	(1)	(3)
Business Solutions customers | Retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	315	416	866	982
Business Solutions customers | Retail revenue | Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Texas | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,982	1,788	4,904	4,197
Operating revenues	1,992	2,208	4,928	5,511
Lease revenue	0	0	0	0
Texas | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,921	2,132	4,734	4,818
Texas | Energy revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	11	211	21	452
Derivative revenue	0	613	0	1,239
Texas | Capacity revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Derivative revenue	0	0	0	0
Texas | Derivative revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	1	(213)	1	28
Derivative revenue	10	420	24	1,314
Texas | Other revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	59	78	172	213
Texas | Total operating revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Operating revenues	1,992	2,208	4,928	5,511
Texas | Other revenue, derivative | Operating Segments
Disaggregation of Revenue [Line Items]
Derivative revenue	9	20	23	47
Texas | Mass customers | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,633	1,735	3,938	3,891
Texas | Business Solutions customers | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	288	397	796	927
East | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	578	610	1,558	1,624
Operating revenues	693	679	1,798	1,812
Lease revenue	0	0	1	1
East | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	381	356	1,062	947
East | Energy revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	93	109	157	283
Derivative revenue	23	20	60	87
East | Capacity revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	158	185	471	524
Derivative revenue	49	34	114	81
East | Derivative revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	43	12	63	13
Derivative revenue	115	69	239	187
East | Other revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	18	17	45	45
East | Total operating revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Operating revenues	693	679	1,798	1,812
East | Other revenue, derivative | Operating Segments
Disaggregation of Revenue [Line Items]
Derivative revenue	0	3	2	6
East | Mass customers | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	354	337	992	892
East | Business Solutions customers | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	27	19	70	55
West/Other | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	127	106	277	250
Operating revenues	122	111	341	310
Lease revenue	5	5	14	14
West/Other | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
West/Other | Energy revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	117	107	252	217
Derivative revenue	13	21	42	28
West/Other | Capacity revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16	9	47	27
Derivative revenue	0	0	0	0
West/Other | Derivative revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	(10)	(9)	6	11
Derivative revenue	(10)	0	50	46
West/Other | Other revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1)	4	36	55
West/Other | Total operating revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Operating revenues	122	111	341	310
West/Other | Other revenue, derivative | Operating Segments
Disaggregation of Revenue [Line Items]
Derivative revenue	(13)	(12)	2	7
West/Other | Mass customers | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
West/Other | Business Solutions customers | Retail revenue | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0	$ 0	$ 0

Revenue Recognition - Contract

Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred customer acquisition costs	$ 122		$ 122		$ 133
Total accounts receivable, net	1,126		1,126		1,025
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	411		411		402
Deferred revenues	60		60		82
Deferred revenue from contract with customers	31				24
Revenue recognized	31	$ 21	13	$ 13
Accounts receivable, net - Contracts with customers
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	1,084		1,084		1,002
Accounts receivable, net - Derivative instruments
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	37		37		18
Accounts receivable, net - Affiliate
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	$ 5		$ 5		$ 5

Acquisitions, Discontinued Op_3

Acquisitions, Discontinued Operations and Dispositions - Acquisitions (Details) customer in Thousands	Sep. 29, 2020USD ($)	Jul. 24, 2020USD ($)statecustomer	Aug. 01, 2019USD ($)customerstate	Nov. 05, 2020USD ($)	Sep. 30, 2020USD ($)	Sep. 22, 2020USD ($)
Leased Assets, Powerton facility and Units 7 and 8 of the Joliet facility
Business Acquisition [Line Items]
Operating lease liability	$ 148,000,000
Powerton Facility And Units 7 And 8 Of The Joliet Facility
Business Acquisition [Line Items]
Payment for asset acquisition	$ 260,000,000
Credit Facility | Line of Credit | Revolving Credit Facility
Business Acquisition [Line Items]
Increase revolving commitments					$ 802,000,000
Revolving credit commitments					$ 273,000,000
Receivables Facility | Secured Debt
Business Acquisition [Line Items]
Revolving credit commitments						$ 750,000,000
Repurchase Facility | Secured Debt
Business Acquisition [Line Items]
Revolving credit commitments						$ 75,000,000
Subsequent Event | Interest Rate Swap
Business Acquisition [Line Items]
Derivative, notional amount				$ 1,600,000,000
Subsequent Event | Letter of Credit
Business Acquisition [Line Items]
Increase revolving commitments				87,000,000
Subsequent Event | Credit Facility | Line of Credit | Revolving Credit Facility
Business Acquisition [Line Items]
Increase revolving commitments				802,000,000
Revolving credit commitments				273,000,000
Subsequent Event | Receivables Facility | Secured Debt
Business Acquisition [Line Items]
Revolving credit commitments				750,000,000
Subsequent Event | Repurchase Facility | Secured Debt
Business Acquisition [Line Items]
Revolving credit commitments				$ 75,000,000
Direct Energy
Business Acquisition [Line Items]
Customers added (over) | customer		3,000
Cash paid to acquire business		$ 3,625,000,000
Proceeds from issuance of long-term debt		3,000,000,000
Increase in collective collateral facilities		$ 3,500,000,000
Direct Energy | U.S.
Business Acquisition [Line Items]
States in which entity operates | state		50
Direct Energy | Canada
Business Acquisition [Line Items]
Provinces in which entity operates | state		6
Stream Energy Acquisition
Business Acquisition [Line Items]
States in which entity operates | state			9
Cash paid to acquire business			$ 329,000,000
Working capital and other adjustment			$ 29,000,000
Increase in retail portfolio by RCE's acquired | customer			600
Customers acquired | customer			450

Acquisitions, Discontinued Op_4

Acquisitions, Discontinued Operations and Dispositions - Purchase Price Allocation (Details) - USD ($) $ in Millions	Aug. 01, 2019	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 579	$ 579
Stream Energy Acquisition
Business Acquisition [Line Items]
Account receivable	$ 98
Accounts payable	(73)
Other net current and non-current working capital	5
Goodwill	6
Stream Purchase Price	329
Stream Energy Acquisition | Texas
Business Acquisition [Line Items]
Goodwill	5
Stream Energy Acquisition | East
Business Acquisition [Line Items]
Goodwill	1
Stream Energy Acquisition | Marketing Partnerships
Business Acquisition [Line Items]
Finite-lived intangibles	154
Stream Energy Acquisition | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangibles	85
Stream Energy Acquisition | Trade Names
Business Acquisition [Line Items]
Finite-lived intangibles	28
Stream Energy Acquisition | Other Intangible Assets
Business Acquisition [Line Items]
Finite-lived intangibles	$ 26

Acquisitions, Discontinued Op_5

Acquisitions, Discontinued Operations and Dispositions - Discontinued Operations Narrative (Details) $ in Millions	Feb. 06, 2018USD ($)extension	Sep. 30, 2020USD ($)MW	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Feb. 04, 2019USD ($)MW
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Generation capacity (in MW) | MW		23,000
South Central Portfolio | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration					$ 1,000
Generation capacity (in MW) | MW					1,153
Carlsbad Energy Holdings LLC | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration	$ 385
Percentage of ownership sold	100.00%
Lease and easement agreement, number of extensions | extension	2
Lease renewal term	10 years
Additional commitments related to project		$ 23		$ 23
Other | Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from other asset sales		$ 15	$ 22

Acquisitions, Discontinued Op_6

Acquisitions, Discontinued Operations and Dispositions - Summarized Results of Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss)/Gain from discontinued operations, including disposal, net of tax	$ 0	$ (2)	$ 0	$ 399
Discontinued Operations, Disposed of by Sale | South Central Portfolio
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues		0		31
Operating costs and expenses		0		(23)
Gain from operations of discontinued components/discontinued operations, net of tax		0		8
(Loss)/Gain on disposal of discontinued operation, net of tax		(1)		27
(Loss)/Gain from discontinued operations, including disposal, net of tax		(1)		35
Discontinued Operations, Disposed of by Sale | Carlsbad Energy Holdings LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues		0		19
Operating costs and expenses		0		(9)
Other expense		0		(5)
Gain from operations of discontinued components/discontinued operations, net of tax		0		5
(Loss)/gain on disposal of discontinued operations, net of tax		(1)		330
Other Commitments, Indemnification and Fees		0		27
(Loss)/Gain on disposal of discontinued operation, net of tax		(1)		357
(Loss)/Gain from discontinued operations, including disposal, net of tax		$ (1)		362
Discontinued Operations | GenOn
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss)/Gain on disposal of discontinued operation, net of tax				$ 2

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Estimated Carrying Amounts and Fair Value of Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, including current portion	$ 5,929	$ 6,042
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes receivable	10	11
Long-term debt, including current portion	5,854	5,956
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes receivable	7	8
Long-term debt, including current portion	6,309	6,504
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, including current portion	6,305	6,388
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, including current portion	$ 4	$ 116

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Assets and Liabilities Measured and Recorded at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	$ 15	$ 20
Other trust fund investments:
U.S. government and federal agency obligations	1	1
Measured using net asset value practical expedient:
Total assets	1,744	1,993
Derivative liabilities:
Derivative liabilities	813	1,103
Commodity contracts
Derivative assets:
Derivative assets	893	1,170
Derivative liabilities:
Derivative liabilities	813	1,103
Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	25	17
U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	49	68
Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	92	100
Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	38	29
Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	144	109
Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	402	388
Measured using net asset value practical expedient:
Equity contracts	7	8
Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	6	5
Equity securities — nuclear trust fund investments
Measured using net asset value practical expedient:
Equity contracts	72	78
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	0	0
Other trust fund investments:
U.S. government and federal agency obligations	1	1
Measured using net asset value practical expedient:
Total assets	550	558
Derivative liabilities:
Derivative liabilities	70	143
Level 1 | Commodity contracts
Derivative assets:
Derivative assets	74	84
Derivative liabilities:
Derivative liabilities	70	143
Level 1 | Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	25	17
Level 1 | U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	48	68
Level 1 | Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 1 | Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 1 | Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 1 | Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	402	388
Level 1 | Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	15	20
Other trust fund investments:
U.S. government and federal agency obligations	0	0
Measured using net asset value practical expedient:
Total assets	888	1,156
Derivative liabilities:
Derivative liabilities	568	805
Level 2 | Commodity contracts
Derivative assets:
Derivative assets	592	893
Derivative liabilities:
Derivative liabilities	568	805
Level 2 | Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 2 | U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	1	0
Level 2 | Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	92	100
Level 2 | Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	38	29
Level 2 | Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	144	109
Level 2 | Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 2 | Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	6	5
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	0	0
Other trust fund investments:
U.S. government and federal agency obligations	0	0
Measured using net asset value practical expedient:
Total assets	227	193
Derivative liabilities:
Derivative liabilities	175	155
Level 3 | Commodity contracts
Derivative assets:
Derivative assets	227	193
Derivative liabilities:
Derivative liabilities	175	155
Level 3 | Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	$ 0	$ 0

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Reconciliation of Level 3 Financial Instruments (Details) - Level 3 - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		$ 116		$ 39
Contracts added from acquisitions		(2)		(3)
Total (losses)/gains realized/unrealized:
Total (losses) — realized/unrealized included in earnings		(18)		(44)
Included in OCI		(14)		(14)
Cash received		0		(1)
Purchases		38		26
Transfers into Level 3		(126)		4
Transfers out of Level 3		24		11
Ending balance		18		18
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end		44		14
Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		19		19
Contracts added from acquisitions		0		0
Total (losses)/gains realized/unrealized:
Total (losses) — realized/unrealized included in earnings		0		1
Included in OCI		(14)		(14)
Cash received		0		(1)
Purchases		0		0
Transfers into Level 3		0		0
Transfers out of Level 3		0		0
Ending balance		5		5
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end		0		1
Derivatives
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 152	97	$ 38	20
Contracts added from acquisitions		(2)		(3)
Total (losses)/gains realized/unrealized:
Total (losses) — realized/unrealized included in earnings	(92)	(18)	(18)	(45)
Included in OCI		0		0
Cash received		0		0
Purchases	(10)	38	6	26
Transfers into Level 3	(11)	(126)	22	4
Transfers out of Level 3	13	24	4	11
Ending balance	52	13	52	13
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of period end	$ 23	$ 44	$ 50	$ 13

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Derivative Fair Value Measurements, Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Fair Value Disclosures [Abstract]
Total derivative assets valued with prices provided by models and other valuation techniques (as a percent)	25.00%
Total derivative liabilities valued with prices provided by models and other valuation techniques (as a percent)	22.00%
Increase within operating revenue	$ 1

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Derivative Fair Value Measurements (Details) $ in Millions	Sep. 30, 2020USD ($)$ / MWh	Dec. 31, 2019USD ($)$ / MWh
Liabilities
Derivative liabilities	$ 813	$ 1,103
Level 3
Liabilities
Derivative liabilities	175	155
Commodity contracts
Assets
Derivative assets	893	1,170
Liabilities
Derivative liabilities	813	1,103
Commodity contracts | Level 3
Assets
Derivative assets	227	193
Liabilities
Derivative liabilities	175	155
Commodity contracts | Level 3 | Power Contracts
Assets
Derivative assets	196	151
Liabilities
Derivative liabilities	$ 167	$ 139
Commodity contracts | Level 3 | Power Contracts | Low
Fair Value Inputs / Range
Forward Market Price (per MWh) | $ / MWh	10	8
Commodity contracts | Level 3 | Power Contracts | High
Fair Value Inputs / Range
Forward Market Price (per MWh) | $ / MWh	116	218
Commodity contracts | Level 3 | Power Contracts | Weighted Average
Fair Value Inputs / Range
Forward Market Price (per MWh) | $ / MWh	24	24
Commodity contracts | Level 3 | FTRs
Assets
Derivative assets	$ 31	$ 42
Liabilities
Derivative liabilities	$ 8	$ 16
Commodity contracts | Level 3 | FTRs | Low
Fair Value Inputs / Range
Auction Prices (per MWh) | $ / MWh	(50)	(105)
Commodity contracts | Level 3 | FTRs | High
Fair Value Inputs / Range
Auction Prices (per MWh) | $ / MWh	43	213
Commodity contracts | Level 3 | FTRs | Weighted Average
Fair Value Inputs / Range
Auction Prices (per MWh) | $ / MWh	0	0

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Counterparty Credit Risk (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)counterparty
Concentration of Credit Risk
Counterparty credit exposure to a portion of the Company's counterparties	$ 232
Collateral held (cash and letters of credit) against counterparty credit exposure to a portion of the Company's counterparties	19
Net counterparty credit exposure to a portion of the Company's counterparties	$ 214
Company's exposure before collateral is expected to roll off by the end of 2019 (as a percent)	39.00%
Net exposure (as a percent)	100.00%
Counterparty credit risk exposure	$ 45
Wholesale counterparty with net exposure | counterparty	2
Counterparty credit risk exposure to certain counterparties, threshold (as a percent)	10.00%
Estimated counterparty credit risk exposure to certain counterparties	$ 621
Period of estimated counterparty credit risk exposure, years	5 years
Investment grade
Concentration of Credit Risk
Net exposure (as a percent)	59.00%
Non-investment grade/non-rated
Concentration of Credit Risk
Net exposure (as a percent)	41.00%
Utilities, energy merchants, marketers and other
Concentration of Credit Risk
Net exposure (as a percent)	88.00%
Financial institutions
Concentration of Credit Risk
Net exposure (as a percent)	12.00%

Nuclear Decommissioning Trust_3

Nuclear Decommissioning Trust Fund - Narrative (Details)	Sep. 30, 2020
STP
Nuclear decommissioning trust fund
Ownership interest as percentage	44.00%

Nuclear Decommissioning Trust_4

Nuclear Decommissioning Trust Fund - Summary of aggregate fair values and realized gains and losses (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Nuclear decommissioning trust fund
Fair Value	$ 828	$ 794
Unrealized Gains	347	338
Unrealized Losses	1	1
Cash and cash equivalents
Nuclear decommissioning trust fund
Fair Value	25	17
Unrealized Gains	0	0
Unrealized Losses	0	0
U.S. government and federal agency obligations
Nuclear decommissioning trust fund
Fair Value	49	68
Unrealized Gains	7	4
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	12 years	11 years
Federal agency mortgage-backed securities
Nuclear decommissioning trust fund
Fair Value	$ 92	$ 100
Unrealized Gains	4	3
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	24 years	24 years
Commercial mortgage-backed securities
Nuclear decommissioning trust fund
Fair Value	$ 38	$ 29
Unrealized Gains	2	1
Unrealized Losses	$ 0	$ 1
Weighted-average Maturities (In years)	28 years	24 years
Corporate debt securities
Nuclear decommissioning trust fund
Fair Value	$ 144	$ 109
Unrealized Gains	12	6
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	12 years	11 years
Equity securities
Nuclear decommissioning trust fund
Fair Value	$ 474	$ 466
Unrealized Gains	321	324
Unrealized Losses	1	0
Foreign government fixed income securities
Nuclear decommissioning trust fund
Fair Value	6	5
Unrealized Gains	1	0
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	10 years	10 years

Nuclear Decommissioning Trust_5

Nuclear Decommissioning Trust Fund - Summary of proceeds from sales of available-for-sale securities and related gains and losses (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Regulated Operations [Abstract]
Realized gains	$ 22	$ 8
Realized losses	(11)	(7)
Proceeds from sale of securities	$ 318	$ 271

Accounting for Derivative Ins_3

Accounting for Derivative Instruments and Hedging Activities - Net notional volume buy/sell of open derivative transactions (Details) certificates in Millions, T in Millions, MWh in Millions, MMBTU in Millions, $ in Billions	9 Months Ended	12 Months Ended
	Sep. 30, 2020MMBTUMWhcertificatesT	Dec. 31, 2019MMBTUMWhcertificatesT	Nov. 05, 2020USD ($)
Interest Rate Swap | Subsequent Event
Derivative [Line Items]
Derivative, notional amount | $			$ 1.6
Long | Emissions
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, mass (ton) | T	1	3
Long | Renewable Energy Certificates
Volumetric Underlying Derivative Transactions
Derivative, non-monetary notional amount (in shares) | certificates	3	1
Long | Coal
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, mass (ton) | T	4	10
Long | Power
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, energy measure (MMBtu/MW/Day) | MWh	(51)	(38)
Short | Natural Gas
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, energy measure (MMBtu/MW/Day) | MMBTU	(264)	(181)
Short | Capacity
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, energy measure (MMBtu/MW/Day) | MMBTU	(1)	(1)

Accounting for Derivative Ins_4

Accounting for Derivative Instruments and Hedging Activities - Fair value within the derivative instrument valuation (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative Liabilities	$ 813	$ 1,103
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets	893	1,170
Derivative Liabilities	813	1,103
Not Designated as Hedging Instrument | Commodity contracts current
Derivative [Line Items]
Derivative Assets	578	860
Derivative Liabilities	495	781
Not Designated as Hedging Instrument | Commodity contracts long-term
Derivative [Line Items]
Derivative Assets	315	310
Derivative Liabilities	$ 318	$ 322

Accounting for Derivative Ins_5

Accounting for Derivative Instruments and Hedging Activities - Offsetting of derivatives by counterparty master agreement level and collateral received (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid
Cash Collateral (Held) / Posted	$ (15)	$ (32)
Derivative liabilities	(813)	(1,103)
Cash Collateral Posted	77	190
Commodity contracts
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid
Derivative assets	893	1,170
Derivative Instruments	(738)	(909)
Cash Collateral (Held) / Posted	(1)	(7)
Net Amount	154	254
Derivative liabilities	(813)	(1,103)
Derivative Instruments	738	909
Cash Collateral Posted	0	73
Net Amount	(75)	(121)
Gross Amounts of Recognized Assets / Liabilities	80	67
Derivative Instruments	0	0
Cash Collateral (Held) / Posted	(1)	66
Net Amount	$ 79	$ 133

Accounting for Derivative Ins_6

Accounting for Derivative Instruments and Hedging Activities - Pre-tax effects of economic hedges not designated a cash flow hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Unrealized mark-to-market results
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges	$ (101)	$ (118)	$ (62)	$ (88)
Reversal of acquired (gain)/loss positions related to economic hedges	(2)	(3)	2	(4)
Net unrealized (losses)/gains on open positions related to economic hedges	(15)	57	73	69
Total unrealized mark-to-market (losses)/gains for economic hedging activities	(118)	(64)	13	(23)
Reversal of previously recognized unrealized (gains) on settled positions related to trading activity	(7)	(1)	(14)	(8)
Net unrealized gains/(losses) on open positions related to trading activity	2	(3)	19	23
Total unrealized mark-to-market (losses)/gains for trading activity	(5)	(4)	5	15
Total unrealized (losses)/gains	(123)	(68)	18	(8)
Credit Risk Related Contingent Features
Unrealized gains from open economic hedge positions			73	69
Collateral due on net liability position that has not been called by a certain marginable agreement counterparty	8		8
Additional collateral required	3		3
Adequate Assurance Clauses
Credit Risk Related Contingent Features
Derivative net liability position, collateral required for contracts with credit rating contingent feature	35		35
Commodity contracts
Unrealized mark-to-market results
Total unrealized (losses)/gains	(123)	(68)	18	(8)
Commodity contracts | Operating revenues
Unrealized mark-to-market results
Total unrealized (losses)/gains	34	(214)	83	66
Commodity contracts | Cost of operations
Unrealized mark-to-market results
Total unrealized (losses)/gains	(157)	146	(65)	(74)
Interest rate contracts
Unrealized mark-to-market results
Total unrealized (losses)/gains	$ 0	$ 0	$ 0	$ (38)

Impairments (Details)

Impairments (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2019
Schedule of Equity Method Investments [Line Items]
Impairment losses of cost investments and intangible assets				$ 7
Petra Nova
Schedule of Equity Method Investments [Line Items]
Impairment losses		$ 18	$ 101
Letters of credit issued			12	12
Investment in cash			95
Guarantor obligations (up to)			$ 124	$ 124
West/Other | Disposal Group, Held-for-sale, Not Discontinued Operations | Home Solar
Schedule of Equity Method Investments [Line Items]
Adjustment to carrying amount of assets and liabilities	$ 29
Other noncurrent assets- held for sale	88
Non-current liabilities - held-for-sale	$ 44

Long-term Debt - Schedule of Lo

Long-term Debt - Schedule of Long-term Debt (Details) $ / shares in Units, $ in Millions	Oct. 30, 2020$ / shares	Sep. 30, 2020USD ($)	Mar. 11, 2020	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Debt amount		$ 5,929		$ 6,042
Less current maturities		(3)		(88)
Less debt issuance costs		(59)		(65)
Discounts		(75)		(86)
Long-term debt		5,792		5,803
Recourse Debt
Debt Instrument [Line Items]
Debt amount		5,925		6,008
Recourse Debt | Senior Notes, due 2026
Debt Instrument [Line Items]
Debt amount		$ 1,000		1,000
Interest rate, stated percentage		7.25%
Recourse Debt | Senior Notes, due 2027
Debt Instrument [Line Items]
Debt amount		$ 1,230		1,230
Interest rate, stated percentage		6.625%
Recourse Debt | Senior Notes, due 2028
Debt Instrument [Line Items]
Debt amount		$ 821		821
Interest rate, stated percentage		5.75%
Recourse Debt | Senior Notes, due 2029
Debt Instrument [Line Items]
Debt amount		$ 733		733
Interest rate, stated percentage		5.25%
Recourse Debt | Convertible Senior Notes Due 2048
Debt Instrument [Line Items]
Debt amount		$ 575		575
Interest rate, stated percentage		2.75%
Recourse Debt | Convertible Senior Notes Due 2048 | Subsequent Event
Debt Instrument [Line Items]
Convertible Notes, conversion price (in usd per share) | $ / shares	$ 46.24
Conversion rate	0.02162
Recourse Debt | Senior Secured First Lien Notes, due 2024
Debt Instrument [Line Items]
Debt amount		$ 600		600
Interest rate, stated percentage		3.75%
Recourse Debt | Senior Secured First Lien Notes, due 2029
Debt Instrument [Line Items]
Debt amount		$ 500		500
Interest rate, stated percentage		4.45%
Recourse Debt | Tax-exempt bonds
Debt Instrument [Line Items]
Debt amount		$ 466		466
Recourse Debt | Tax-exempt bonds | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage		1.30%	1.30%
Recourse Debt | Tax-exempt bonds | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage		6.00%
Line of Credit | Revolving Credit Facility | Revolver Facility
Debt Instrument [Line Items]
Debt amount		$ 0		83
Line of Credit | Revolving Credit Facility | Revolver Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%
Non Recourse Debt
Debt Instrument [Line Items]
Debt amount		$ 4		34
Non Recourse Debt | Other
Debt Instrument [Line Items]
Debt amount		$ 4		$ 34

Long-term Debt - Recourse Debt

Long-term Debt - Recourse Debt (Details)	3 Months Ended
	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2020CAD ($)	Jun. 30, 2020USD ($)	Mar. 11, 2020USD ($)	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Debt amount	$ 5,929,000,000					$ 6,042,000,000
Recourse Debt
Debt Instrument [Line Items]
Debt amount	5,925,000,000					6,008,000,000
Recourse Debt | Tax-exempt bonds
Debt Instrument [Line Items]
Debt amount	$ 466,000,000					466,000,000
Debt issuance amount					$ 59,000,000
Recourse Debt | Dunkirk Power LLC Tax Exempt Bonds Due 2042
Debt Instrument [Line Items]
Interest rate, stated percentage	5.875%		5.875%
Revolving Credit Facility | Line of Credit | Revolver Facility
Debt Instrument [Line Items]
Debt amount	$ 0					$ 83,000,000
Increase revolving commitments	802,000,000
Revolving credit commitments	$ 273,000,000
Debt term	30 months
Debt extension, term	12 months
Credit facility, lien basket (greater than)	$ 10,000,000,000			$ 6,000,000,000
Credit facilities, percentage of total assets	30.00%		30.00%	30.00%
Revolving Credit Facility | Line of Credit | Revolver Facility | Forecast
Debt Instrument [Line Items]
Total revolving commitments available		$ 3,700,000,000
Bridge Loan | Line of Credit
Debt Instrument [Line Items]
Revolving credit commitments	$ 100,000,000		$ 10,000,000	$ 50,000,000
Debt Basket | Revolver Facility
Debt Instrument [Line Items]
Revolving credit commitments	600,000,000
Debt Basket | Line of Credit
Debt Instrument [Line Items]
Revolving credit commitments	10,000,000,000			6,000,000,000
Debt Basket | Secured Debt | Revolver Facility
Debt Instrument [Line Items]
Revolving credit commitments	$ 1,700,000,000			$ 750,000,000

Long-term Debt - Non Recourse D

Long-term Debt - Non Recourse Debt (Details) - Letter of Credit - USD ($)	Jan. 04, 2019	Sep. 30, 2020	Nov. 05, 2020
Subsequent Event
Debt Instrument [Line Items]
Increase credit facility			$ 87,000,000
Credit Agreement
Debt Instrument [Line Items]
Credit agreement	$ 80,000,000
Facility fees	1.33%
Increase credit facility		$ 50,000,000
Letters of credit issued		$ 80,000,000
Credit Agreement | Subsequent Event
Debt Instrument [Line Items]
Credit agreement			$ 167,000,000

Investments Accounted for Usi_3

Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs (Details) - USD ($) $ in Millions	Nov. 05, 2020	Sep. 30, 2020	Jul. 31, 2020	Dec. 31, 2019
Investments Accounted for by the Equity Method
Equity investments in affiliates		$ 376		$ 388
Other current assets		3,087		3,088
Property, plant and equipment, net		2,573		2,593
Other non-current assets		314		240
Total Assets		12,225		12,531
Current liabilities		1,986		2,359
Long-term debt		5,929		6,042
Other non-current liabilities		1,062		1,084
Total Liabilities		10,291		10,853
Variable Interest Entity, Primary Beneficiary
Investments Accounted for by the Equity Method
Accounts receivable		887		0
Other current assets		4		3
Property, plant and equipment, net		0		71
Other non-current assets		25		27
Total Assets		916		101
Current liabilities		5		4
Long-term debt		0		24
Other non-current liabilities		27		8
Total Liabilities		32		36
Redeemable noncontrolling interest		0		20
Net Assets Less Noncontrolling Interest		884		$ 45
Agua Caliente
Investments Accounted for by the Equity Method
Ownership interest			35.00%
Equity investments in affiliates		197
Agua Caliente | Subsequent Event
Investments Accounted for by the Equity Method
Distributions received	$ 50
Ivampah Master Holdings LLC
Investments Accounted for by the Equity Method
Equity investments in affiliates		$ 26

Changes in Capital Structure -

Changes in Capital Structure - Narrative (Details) - shares	1 Months Ended	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2019	Sep. 30, 2020
Equity [Abstract]
Common stock, shares authorized (in shares)		500,000,000	500,000,000
Long-term capital allocation, target allocation, cash generated allocated to growth investments, percentage		50.00%
Long-term capital allocation, target allocation, cash generated allocated returned to shareholders, percentage		50.00%
Employee Stock Purchase Plan, minimum percentage of eligible compensation to purchase shares	1.00%
Employee Stock Purchase Plan, maximum percentage of eligible compensation	10.00%
Employee Stock Purchase Plan, exercise price as percentage of fair value	95.00%

Changes in Capital Structure _2

Changes in Capital Structure - Changes in NRG's common stock issued and outstanding (Details) - shares	1 Months Ended	9 Months Ended
	Nov. 05, 2020	Sep. 30, 2020
Schedule of Stock by Class, Equity [Roll Forward]
Balance as of beginning of period (in shares)	423,041,349	421,890,790
Treasury shares, balance as of beginning of period (in shares)	(178,893,929)	(172,894,601)
Outstanding, as of beginning of period (in shares)	244,147,420	248,996,189
Shares issued under LTIPs (in shares)		1,150,559
Stock issued under ESPP (in shares)		63,455
Shares repurchased (in shares)		(6,062,783)
Balance as of end of period (in shares)		423,041,349
Treasury shares, balance as of end of the period (in shares)		(178,893,929)
Outstanding, as of end of period (in shares)		244,147,420
Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares issued under LTIPs (in shares)	5,400
Stock issued under ESPP (in shares)	68,014
Outstanding, as of end of period (in shares)	244,220,834
Common Stock
Schedule of Stock by Class, Equity [Roll Forward]
Balance as of beginning of period (in shares)	423,041,349	421,890,790
Shares issued under LTIPs (in shares)		1,150,559
Stock issued under ESPP (in shares)		0
Shares repurchased (in shares)		0
Balance as of end of period (in shares)		423,041,349
Common Stock | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares issued under LTIPs (in shares)	5,400
Stock issued under ESPP (in shares)	0
Balance as of end of period (in shares)	423,046,749
Treasury
Schedule of Stock by Class, Equity [Roll Forward]
Treasury shares, balance as of beginning of period (in shares)	(178,893,929)	(172,894,601)
Shares issued under LTIPs (in shares)		0
Stock issued under ESPP (in shares)		63,455
Shares repurchased (in shares)		(6,062,783)
Treasury shares, balance as of end of the period (in shares)		(178,893,929)
Treasury | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares issued under LTIPs (in shares)	0
Stock issued under ESPP (in shares)	68,014
Treasury shares, balance as of end of the period (in shares)	(178,825,915)

Changes in Capital Structure _3

Changes in Capital Structure - Schedule of Repurchases Under Share Repurchase Programs (Details) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)$ / sharesshares
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)	6,062,783
Capital Allocation Plan, Open Market Repurchases
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)	6,062,783
Amounts paid for shares purchased | $	$ 197
Equivalent Shares In Lieu Of Tax Withholding on Equity Compensation Issuances
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)	711,248
Average price paid per share (in usd per share) | $ / shares	$ 38.23
Amounts paid for shares purchased | $	$ 27
Capital Allocation Plan
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)	6,774,031
Average price paid per share (in usd per share) | $ / shares	$ 33.05
Amounts paid for shares purchased | $	$ 224

Changes in Capital Structure _4

Changes in Capital Structure - NRG Common Stock Dividends (Details) - $ / shares	Oct. 23, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2019
Subsequent Event [Line Items]
Common stock dividends proposed annual amount (in usd per share)				$ 1.20				$ 0.12
Dividends per common share (in usd per share)		$ 0.30	$ 0.30	$ 0.30	$ 0.03	$ 0.03	$ 0.03
Subsequent Event
Subsequent Event [Line Items]
Common stock dividends declared (in usd per share)	$ 0.30
Minimum
Subsequent Event [Line Items]
Common stock, annual dividend growth rate, percentage				700.00%
Maximum
Subsequent Event [Line Items]
Common stock, annual dividend growth rate, percentage				9.00%

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic income per share:
Net income attributable to NRG Energy, Inc.	$ 249	$ 313	$ 121	$ 372	$ 201	$ 482	$ 683	$ 1,055
Weighted average number of common shares outstanding — basic (in shares)	244			254			246	266
Income per weighted average common share — basic (in usd per share)	$ 1.02			$ 1.46			$ 2.78	$ 3.97
Diluted income per share:
Net income available to common shareholders	$ 249			$ 372			$ 683	$ 1,055
Weighted average number of common shares outstanding — basic (in shares)	244			254			246	266
Incremental shares attributable to the issuance of equity compensation (treasury stock method) (in shares)	1			2			1	2
Weighted average number of common shares outstanding- dilutive (in shares)	245			256			247	268
Income per weighted average common share — diluted (in usd per share)	$ 1.02			$ 1.45			$ 2.77	$ 3.94

Segment Reporting (Details)

Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information
Operating revenues	$ 2,809			$ 2,996			$ 7,066	$ 7,626
Depreciation and amortization	99			91			318	261
Impairment losses	29			0			29	1
Reorganization costs	0			1			3	16
Gain on sale of assets							6	2
Equity in earnings of unconsolidated affiliates	36			29			37	8
Loss on debt extinguishment, net	0			0			(1)	(47)
Income from Continuing Operations Before Income Taxes	341			380			899	666
Income/(loss) from continuing operations	249			374			683	657
Loss from discontinued operations, net of tax	0			(2)			0	399
Net Income	249			372			683	1,056
Net income attributable to NRG Energy, Inc.	249	$ 313	$ 121	372	$ 201	$ 482	683	1,055
Eliminations
Segment Reporting Information
Operating revenues	2			(2)			(1)	(7)
Depreciation and amortization	0			0			0	0
Impairment losses	0						0
Reorganization costs								0
Gain on sale of assets							0	0
Equity in earnings of unconsolidated affiliates	0			0			0	0
Loss on debt extinguishment, net								0
Income from Continuing Operations Before Income Taxes	0			1			0	0
Income/(loss) from continuing operations	0			1			0	0
Loss from discontinued operations, net of tax				0				0
Net Income				1				0
Net income attributable to NRG Energy, Inc.	0			1			0	0
Texas | Operating Segments
Segment Reporting Information
Operating revenues	1,992			2,208			4,928	5,511
Depreciation and amortization	49			45			167	125
Impairment losses	0						0
Reorganization costs								5
Gain on sale of assets							0	0
Equity in earnings of unconsolidated affiliates	0			1			(3)	(5)
Loss on debt extinguishment, net								0
Income from Continuing Operations Before Income Taxes	288			348			800	757
Income/(loss) from continuing operations	288			348			800	757
Loss from discontinued operations, net of tax				0				0
Net Income				348				757
Net income attributable to NRG Energy, Inc.	288			348			800	757
East | Operating Segments
Segment Reporting Information
Operating revenues	693			679			1,798	1,812
Depreciation and amortization	34			31			100	87
Impairment losses	0						0
Reorganization costs								0
Gain on sale of assets							0	1
Equity in earnings of unconsolidated affiliates	0			0			0	0
Loss on debt extinguishment, net								0
Income from Continuing Operations Before Income Taxes	149			121			319	280
Income/(loss) from continuing operations	149			121			319	280
Loss from discontinued operations, net of tax				0				0
Net Income				121				280
Net income attributable to NRG Energy, Inc.	149			121			319	280
West/Other | Operating Segments
Segment Reporting Information
Operating revenues	122			111			341	310
Depreciation and amortization	9			8			25	26
Impairment losses	29						29
Reorganization costs								0
Gain on sale of assets							1	0
Equity in earnings of unconsolidated affiliates	36			28			40	13
Loss on debt extinguishment, net								0
Income from Continuing Operations Before Income Taxes	17			16			84	11
Income/(loss) from continuing operations	17			15			83	10
Loss from discontinued operations, net of tax				0				0
Net Income				15				10
Net income attributable to NRG Energy, Inc.	17			15			83	9
Corporate | Operating Segments
Segment Reporting Information
Operating revenues	0			0			0	0
Depreciation and amortization	7			7			26	23
Impairment losses	0						0
Reorganization costs								11
Gain on sale of assets							5	1
Equity in earnings of unconsolidated affiliates	0			0			0	0
Loss on debt extinguishment, net								(47)
Income from Continuing Operations Before Income Taxes	(113)			(106)			(304)	(382)
Income/(loss) from continuing operations	(205)			(111)			(519)	(390)
Loss from discontinued operations, net of tax				(2)				399
Net Income				(113)				9
Net income attributable to NRG Energy, Inc.	$ (205)			$ (113)			$ (519)	$ 9

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Effective Tax Rate
Income from continuing operations before income taxes	$ 341	$ 380	$ 899	$ 666
Income tax expense from continuing operations	$ 92	$ 6	$ 216	$ 9
Effective income tax rate	27.00%	1.60%	24.00%	1.40%
Uncertain Tax Benefits
Non-current tax liability for uncertain tax benefits	$ 21		$ 21
Uncertain tax benefits, penalties and interest accrued	$ 3		$ 3

Related Party Transactions - Sc

Related Party Transactions - Schedule of NRG's Material Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Related Party Transaction [Line Items]
Revenue from related parties	$ 13	$ 11	$ 40	$ 32
Gladstone
Related Party Transaction [Line Items]
Revenue from related parties	1	2	2	3
Ivanpah
Related Party Transaction [Line Items]
Revenue from related parties	11	7	34	25
Midway-Sunset
Related Party Transaction [Line Items]
Revenue from related parties	$ 1	$ 2	$ 4	$ 4

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	Sep. 30, 2020USD ($)case	Jun. 30, 2019facility
Sierra Club Et Al V. Midwest Generation LLC
Loss Contingencies
Number of facilities | facility		4
XOOM Energy Litigation
Loss Contingencies
Pending lawsuits | case	2
Lignite Contract With Texas Westmoreland Coal Co.
Loss Contingencies
Bond obligation | $	$ 99

Subsequent Events (Details)

Subsequent Events (Details) $ in Billions	Nov. 05, 2020USD ($)
Interest Rate Hedges | Subsequent Event
Subsequent Event [Line Items]
Derivative, notional amount	$ 1.6

Condensed Consolidating Finan_3

Condensed Consolidating Financial Information - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt amount	$ 5,929	$ 6,042
Recourse Debt
Debt Instrument [Line Items]
Debt amount	5,925	$ 6,008
Senior Notes | Recourse Debt
Debt Instrument [Line Items]
Debt amount	4,400
Senior Secured First Lien Notes | Recourse Debt
Debt Instrument [Line Items]
Debt amount	$ 1,100

Condensed Consolidating Finan_4

Condensed Consolidating Financial Information - CONSOLIDATING STATEMENTS OF OPERATIONS (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Revenues
Total operating revenues	$ 2,809			$ 2,996			$ 7,066	$ 7,626
Operating Costs and Expenses
Cost of operations	2,034			2,153			4,925	5,649
Depreciation and amortization	99			91			318	261
Impairment losses	29			0			29	1
Selling, general and administrative costs	253			210			670	615
Reorganization costs	0			1			3	16
Development costs	1			1			6	5
Total operating costs and expenses	2,416			2,456			5,951	6,547
Gain on sale of assets	0			0			6	2
Operating Income/(Loss)	393			540			1,121	1,081
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	0			0			0	0
Equity in earnings of unconsolidated affiliates	36			29			37	8
Impairment losses on investments	0			(107)			(18)	(107)
Other income, net	11			17			52	49
Loss on debt extinguishment, net	0			0			(1)	(47)
Interest expense	(99)			(99)			(292)	(318)
Total other income/(expense)	(52)			(160)			(222)	(415)
Income from Continuing Operations Before Income Taxes	341			380			899	666
Income tax expense	92			6			216	9
Income from Continuing Operations	249			374			683	657
(Loss)/income from discontinued operations, net of income tax	0			(2)			0	399
Net Income	249			372			683	1,056
Less: Net income attributable to redeemable noncontrolling interests	0			0			0	1
Net Income Attributable to NRG Energy, Inc.	249	$ 313	$ 121	372	$ 201	$ 482	683	1,055
Eliminations
Operating Revenues
Total operating revenues	(1)			(2)			(10)	(8)
Operating Costs and Expenses
Cost of operations	(1)			(2)			(10)	(8)
Depreciation and amortization	0			0			0	0
Impairment losses	0						0	0
Selling, general and administrative costs	0			0			0	0
Reorganization costs				0			0	0
Development costs	0			0			0	0
Total operating costs and expenses	(1)			(2)			(10)	(8)
Gain on sale of assets							0	0
Operating Income/(Loss)	0			0			0	0
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	(540)			(557)			(1,391)	(1,298)
Equity in earnings of unconsolidated affiliates	0			0			0	0
Impairment losses on investments				0			0	0
Other income, net	0			0			0	0
Loss on debt extinguishment, net							0	0
Interest expense	0			0			0	0
Total other income/(expense)	(540)			(557)			(1,391)	(1,298)
Income from Continuing Operations Before Income Taxes	(540)			(557)			(1,391)	(1,298)
Income tax expense	0			0			0	0
Income from Continuing Operations				(557)				(1,298)
(Loss)/income from discontinued operations, net of income tax				0				0
Net Income	(540)			(557)			(1,391)	(1,298)
Less: Net income attributable to redeemable noncontrolling interests								0
Net Income Attributable to NRG Energy, Inc.	(540)			(557)			(1,391)	(1,298)
Guarantor Subsidiaries
Operating Revenues
Total operating revenues	2,513			2,473			6,346	6,382
Operating Costs and Expenses
Cost of operations	1,796			1,728			4,357	4,676
Depreciation and amortization	72			52			232	157
Impairment losses	0						0	1
Selling, general and administrative costs	154			132			431	366
Reorganization costs				0			0	0
Development costs	0			0			0	0
Total operating costs and expenses	2,022			1,912			5,020	5,200
Gain on sale of assets							0	1
Operating Income/(Loss)	491			561			1,326	1,183
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	0			20			6	32
Equity in earnings of unconsolidated affiliates	0			0			0	0
Impairment losses on investments				0			0	0
Other income, net	4			11			14	19
Loss on debt extinguishment, net							0	0
Interest expense	(3)			(4)			(12)	(11)
Total other income/(expense)	1			27			8	40
Income from Continuing Operations Before Income Taxes	492			588			1,334	1,223
Income tax expense	0			0			0	0
Income from Continuing Operations				588				1,223
(Loss)/income from discontinued operations, net of income tax				0				9
Net Income	492			588			1,334	1,232
Less: Net income attributable to redeemable noncontrolling interests								0
Net Income Attributable to NRG Energy, Inc.	492			588			1,334	1,232
Non-Guarantor Subsidiaries
Operating Revenues
Total operating revenues	297			525			730	1,252
Operating Costs and Expenses
Cost of operations	230			421			586	956
Depreciation and amortization	21			32			60	81
Impairment losses	29						29	0
Selling, general and administrative costs	7			28			19	56
Reorganization costs				0			0	0
Development costs	(1)			0			0	1
Total operating costs and expenses	286			481			694	1,094
Gain on sale of assets							1	1
Operating Income/(Loss)	11			44			37	159
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	0			0			0	0
Equity in earnings of unconsolidated affiliates	36			29			37	8
Impairment losses on investments				(101)			(18)	(101)
Other income, net	2			1			6	10
Loss on debt extinguishment, net							0	0
Interest expense	0			(3)			(3)	(12)
Total other income/(expense)	38			(74)			22	(95)
Income from Continuing Operations Before Income Taxes	49			(30)			59	64
Income tax expense	1			1			2	2
Income from Continuing Operations				(31)				62
(Loss)/income from discontinued operations, net of income tax				0				5
Net Income	48			(31)			57	67
Less: Net income attributable to redeemable noncontrolling interests								1
Net Income Attributable to NRG Energy, Inc.	48			(31)			57	66
NRG Energy, Inc. (Note Issuer)
Operating Revenues
Total operating revenues	0			0			0	0
Operating Costs and Expenses
Cost of operations	9			6			(8)	25
Depreciation and amortization	6			7			26	23
Impairment losses	0						0	0
Selling, general and administrative costs	92			50			220	193
Reorganization costs				1			3	16
Development costs	2			1			6	4
Total operating costs and expenses	109			65			247	261
Gain on sale of assets							5	0
Operating Income/(Loss)	(109)			(65)			(242)	(261)
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	540			537			1,385	1,266
Equity in earnings of unconsolidated affiliates	0			0			0	0
Impairment losses on investments				(6)			0	(6)
Other income, net	5			5			32	20
Loss on debt extinguishment, net							(1)	(47)
Interest expense	(96)			(92)			(277)	(295)
Total other income/(expense)	449			444			1,139	938
Income from Continuing Operations Before Income Taxes	340			379			897	677
Income tax expense	91			5			214	7
Income from Continuing Operations				374				670
(Loss)/income from discontinued operations, net of income tax				(2)				385
Net Income	249			372			683	1,055
Less: Net income attributable to redeemable noncontrolling interests								0
Net Income Attributable to NRG Energy, Inc.	$ 249			$ 372			$ 683	$ 1,055

Condensed Consolidating Finan_5

Condensed Consolidating Financial Information - CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Financial Statements, Captions [Line Items]
Net Income	$ 249			$ 372			$ 683	$ 1,056
Other Comprehensive Income
Foreign currency translation adjustments, net	4			(4)			2	(4)
Available-for-sale securities	0			(14)			0	(13)
Defined benefit plans, net	0			(41)			0	(47)
Other comprehensive income/(loss)	4	$ 13	$ (15)	(59)	$ (3)	$ (2)	2	(64)
Comprehensive Income/(Loss)	253			313			685	992
Less: Comprehensive income attributable to redeemable noncontrolling interest	0			0			0	1
Comprehensive Income Attributable to NRG Energy, Inc.	253			313			685	991
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Income	(540)			(557)			(1,391)	(1,298)
Other Comprehensive Income
Foreign currency translation adjustments, net	(8)			9			(3)	9
Available-for-sale securities				0				0
Defined benefit plans, net	(2)			40			(5)	40
Other comprehensive income/(loss)	(10)			49			(8)	49
Comprehensive Income/(Loss)				(508)				(1,249)
Less: Comprehensive income attributable to redeemable noncontrolling interest								0
Comprehensive Income Attributable to NRG Energy, Inc.	(550)						(1,399)	(1,249)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Income	492			588			1,334	1,232
Other Comprehensive Income
Foreign currency translation adjustments, net	5			(5)			2	(5)
Available-for-sale securities				0				0
Defined benefit plans, net	2			(40)			5	(40)
Other comprehensive income/(loss)	7			(45)			7	(45)
Comprehensive Income/(Loss)				543				1,187
Less: Comprehensive income attributable to redeemable noncontrolling interest								0
Comprehensive Income Attributable to NRG Energy, Inc.	499						1,341	1,187
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Income	48			(31)			57	67
Other Comprehensive Income
Foreign currency translation adjustments, net	3			(4)			1	(4)
Available-for-sale securities				0				0
Defined benefit plans, net	0			0			0	0
Other comprehensive income/(loss)	3			(4)			1	(4)
Comprehensive Income/(Loss)				(35)				63
Less: Comprehensive income attributable to redeemable noncontrolling interest								1
Comprehensive Income Attributable to NRG Energy, Inc.	51						58	62
NRG Energy, Inc. (Note Issuer)
Condensed Financial Statements, Captions [Line Items]
Net Income	249			372			683	1,055
Other Comprehensive Income
Foreign currency translation adjustments, net	4			(4)			2	(4)
Available-for-sale securities				(14)				(13)
Defined benefit plans, net	0			(41)			0	(47)
Other comprehensive income/(loss)	4			(59)			2	(64)
Comprehensive Income/(Loss)				$ 313				991
Less: Comprehensive income attributable to redeemable noncontrolling interest								0
Comprehensive Income Attributable to NRG Energy, Inc.	$ 253						$ 685	$ 991

Condensed Consolidating Finan_6

Condensed Consolidating Financial Information - CONSOLIDATING BALANCE SHEETS (Details) - USD ($) $ in Millions	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 697			$ 345
Funds deposited by counterparties	15			32
Restricted cash	6			8
Accounts receivable, net	1,126			1,025
Inventory	330			383
Derivative instruments	578			860
Cash collateral paid in support of energy risk management activities	77			190
Prepayments and other current assets	258			245
Total current assets	3,087			3,088
Property, plant and equipment, net	2,573			2,593
Other Assets
Investment in subsidiaries	0			0
Equity investments in affiliates	376			388
Operating lease right-of-use assets, net	345			464
Goodwill	579			579
Intangible assets, net	721			789
Nuclear decommissioning trust fund	828			794
Derivative instruments	315			310
Deferred income taxes	3,087			3,286
Other non-current assets	314			240
Total other assets	6,565			6,850
Total Assets	12,225			12,531
Current Liabilities
Current portion of long-term debt	3			88
Current portion of operating lease liabilities	69			73
Accounts payable	753			722
Derivative instruments	495			781
Cash collateral received in support of energy risk management activities	15			32
Accrued expenses and other current liabilities	651			663
Total current liabilities	1,986			2,359
Other Liabilities
Long-term debt	5,792			5,803
Non-current operating lease liabilities	297			483
Nuclear decommissioning reserve	311			298
Nuclear decommissioning trust liability	508			487
Derivative instruments	318			322
Deferred income taxes	17			17
Other non-current liabilities	1,062			1,084
Total other liabilities	8,305			8,494
Total Liabilities	10,291			10,853
Redeemable noncontrolling interest in subsidiaries	0			20
Total Stockholders' Equity	1,934	$ 1,750	$ 1,536	1,658	$ (1,571)	$ (1,648)	$ (1,538)	$ (1,234)
Total Liabilities and Stockholders' Equity	12,225			12,531
Eliminations
Current Assets
Cash and cash equivalents	0			0
Funds deposited by counterparties	0			0
Restricted cash	0			0
Accounts receivable, net	(1,363)			(740)
Inventory	0			0
Derivative instruments	(18)			(41)
Cash collateral paid in support of energy risk management activities	0			0
Prepayments and other current assets	0			0
Total current assets	(1,381)			(781)
Property, plant and equipment, net	0			0
Other Assets
Investment in subsidiaries	(5,009)			(5,495)
Equity investments in affiliates	0			0
Operating lease right-of-use assets, net	0			0
Goodwill	0			0
Intangible assets, net	0			0
Nuclear decommissioning trust fund	0			0
Derivative instruments	(10)			(13)
Deferred income taxes	0			0
Other non-current assets	0			0
Total other assets	(5,019)			(5,508)
Total Assets	(6,400)			(6,289)
Current Liabilities
Current portion of long-term debt	0			0
Current portion of operating lease liabilities	0			0
Accounts payable	(1,363)			(740)
Derivative instruments	(18)			(41)
Cash collateral received in support of energy risk management activities	0			0
Accrued expenses and other current liabilities	0			0
Total current liabilities	(1,381)			(781)
Other Liabilities
Long-term debt	0			0
Non-current operating lease liabilities	0			0
Nuclear decommissioning reserve	0			0
Nuclear decommissioning trust liability	0			0
Derivative instruments	(10)			(13)
Deferred income taxes	0			0
Other non-current liabilities	0			0
Total other liabilities	(10)			(13)
Total Liabilities	(1,391)			(794)
Redeemable noncontrolling interest in subsidiaries				0
Total Stockholders' Equity	(5,009)			(5,495)
Total Liabilities and Stockholders' Equity	(6,400)			(6,289)
Guarantor Subsidiaries
Current Assets
Cash and cash equivalents	0			0
Funds deposited by counterparties	15			32
Restricted cash	5			5
Accounts receivable, net	650			1,293
Inventory	253			272
Derivative instruments	582			856
Cash collateral paid in support of energy risk management activities	74			182
Prepayments and other current assets	238			170
Total current assets	1,817			2,810
Property, plant and equipment, net	1,270			1,483
Other Assets
Investment in subsidiaries	28			710
Equity investments in affiliates	0			0
Operating lease right-of-use assets, net	68			81
Goodwill	400			359
Intangible assets, net	684			375
Nuclear decommissioning trust fund	828			794
Derivative instruments	315			308
Deferred income taxes	435			421
Other non-current assets	168			145
Total other assets	2,926			3,193
Total Assets	6,013			7,486
Current Liabilities
Current portion of long-term debt	3			0
Current portion of operating lease liabilities	18			20
Accounts payable	933			918
Derivative instruments	505			797
Cash collateral received in support of energy risk management activities	15			32
Accrued expenses and other current liabilities	275			280
Total current liabilities	1,749			2,047
Other Liabilities
Long-term debt	245			302
Non-current operating lease liabilities	56			64
Nuclear decommissioning reserve	311			298
Nuclear decommissioning trust liability	508			487
Derivative instruments	326			334
Deferred income taxes	0			0
Other non-current liabilities	307			399
Total other liabilities	1,753			1,884
Total Liabilities	3,502			3,931
Redeemable noncontrolling interest in subsidiaries				0
Total Stockholders' Equity	2,511			3,555
Total Liabilities and Stockholders' Equity	6,013			7,486
Non-Guarantor Subsidiaries
Current Assets
Cash and cash equivalents	23			20
Funds deposited by counterparties	0			0
Restricted cash	0			1
Accounts receivable, net	1,034			239
Inventory	77			111
Derivative instruments	14			45
Cash collateral paid in support of energy risk management activities	3			8
Prepayments and other current assets	16			8
Total current assets	1,167			432
Property, plant and equipment, net	1,159			952
Other Assets
Investment in subsidiaries	0			0
Equity investments in affiliates	376			388
Operating lease right-of-use assets, net	167			261
Goodwill	179			220
Intangible assets, net	37			414
Nuclear decommissioning trust fund	0			0
Derivative instruments	10			15
Deferred income taxes	(32)			(19)
Other non-current assets	110			30
Total other assets	847			1,309
Total Assets	3,173			2,693
Current Liabilities
Current portion of long-term debt	0			5
Current portion of operating lease liabilities	33			32
Accounts payable	144			141
Derivative instruments	8			25
Cash collateral received in support of energy risk management activities	0			0
Accrued expenses and other current liabilities	71			44
Total current liabilities	256			247
Other Liabilities
Long-term debt	0			28
Non-current operating lease liabilities	134			301
Nuclear decommissioning reserve	0			0
Nuclear decommissioning trust liability	0			0
Derivative instruments	2			1
Deferred income taxes	17			17
Other non-current liabilities	266			153
Total other liabilities	419			500
Total Liabilities	675			747
Redeemable noncontrolling interest in subsidiaries				20
Total Stockholders' Equity	2,498			1,926
Total Liabilities and Stockholders' Equity	3,173			2,693
NRG Energy, Inc. (Note Issuer)
Current Assets
Cash and cash equivalents	674			325
Funds deposited by counterparties	0			0
Restricted cash	1			2
Accounts receivable, net	805			233
Inventory	0			0
Derivative instruments	0			0
Cash collateral paid in support of energy risk management activities	0			0
Prepayments and other current assets	4			67
Total current assets	1,484			627
Property, plant and equipment, net	144			158
Other Assets
Investment in subsidiaries	4,981			4,785
Equity investments in affiliates	0			0
Operating lease right-of-use assets, net	110			122
Goodwill	0			0
Intangible assets, net	0			0
Nuclear decommissioning trust fund	0			0
Derivative instruments	0			0
Deferred income taxes	2,684			2,884
Other non-current assets	36			65
Total other assets	7,811			7,856
Total Assets	9,439			8,641
Current Liabilities
Current portion of long-term debt	0			83
Current portion of operating lease liabilities	18			21
Accounts payable	1,039			403
Derivative instruments	0			0
Cash collateral received in support of energy risk management activities	0			0
Accrued expenses and other current liabilities	305			339
Total current liabilities	1,362			846
Other Liabilities
Long-term debt	5,547			5,473
Non-current operating lease liabilities	107			118
Nuclear decommissioning reserve	0			0
Nuclear decommissioning trust liability	0			0
Derivative instruments	0			0
Deferred income taxes	0			0
Other non-current liabilities	489			532
Total other liabilities	6,143			6,123
Total Liabilities	7,505			6,969
Redeemable noncontrolling interest in subsidiaries				0
Total Stockholders' Equity	1,934			1,672
Total Liabilities and Stockholders' Equity	$ 9,439			$ 8,641

Condensed Consolidating Finan_7

Condensed Consolidating Financial Information - CONSOLIDATING STATEMENTS OF CASH FLOWS (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash Flows from Operating Activities
Net income attributable to NRG Energy, Inc.	$ 249	$ 313	$ 121	$ 372	$ 201	$ 482	$ 683	$ 1,055
Net Income	249			372			683	1,056
Income from discontinued operations	0			(2)			0	399
Income from continuing operations	249			374			683	657
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses/(earnings) of unconsolidated affiliates							6	(5)
Depreciation and amortization							318	261
Accretion of asset retirement obligations							46	31
Provision for credit losses	26						74	87
Amortization of nuclear fuel							40	40
Amortization of financing costs and debt discount/premiums							23	20
Loss on debt extinguishment, net							1	47
Amortization of emissions allowances and energy credits							60	28
Amortization of unearned equity compensation							17	15
Net loss on sale of assets and disposal of assets							(22)	(20)
Impairment losses							47	108
Changes in derivative instruments							(7)	36
Changes in deferred income taxes and liability for uncertain tax benefits							202	(3)
Changes in collateral deposits in support of energy risk management activities							96	129
Changes in nuclear decommissioning trust liability							39	27
Changes in other working capital							(237)	(569)
Cash provided/(used) by continuing operations							1,386	889
Cash provided/(used) by discontinued operations							0	8
Net Cash Provided/(Used) by Operating Activities							1,386	897
Cash Flows from Investing Activities
Intercompany dividends							0	0
Payments for acquisitions of businesses							(277)	(348)
Capital expenditures							(167)	(183)
Decrease in notes receivable							0	2
Net purchases of /proceeds from emission allowances							(15)	14
Investments in nuclear decommissioning trust fund securities							(360)	(295)
Proceeds from the sale of nuclear decommissioning trust fund securities							318	271
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees							15	1,293
Net distributions from investments in unconsolidated affiliates							2	(94)
Contributions to discontinued operations							0	(44)
Cash (used)/provided by continuing operations							(484)	616
Cash used by discontinued operations							0	(2)
Net Cash (Used)/Provided by Investing Activities							(484)	614
Cash Flows from Financing Activities
Intercompany dividends and transfers							0	0
Payments of dividends to common stockholders							(221)	(24)
Payments for share repurchase activity							(229)	(1,322)
Payments for debt extinguishment costs							0	(24)
Purchase of and distributions to noncontrolling interests from subsidiaries							(2)	(1)
Proceeds from issuance of common stock							1	3
Proceeds from issuance of long-term debt							59	1,833
Payments of debt issuance costs							(24)	(34)
Repayments of long-term debt							(62)	(2,487)
Net (repayments)/proceeds of Revolving Credit Facility							(83)	215
Other							(6)	0
Cash used by continuing operations							(567)	(1,841)
Cash provided by discontinued operations							0	43
Net Cash Used by Financing Activities							(567)	(1,798)
Effect of exchange rate changes on cash and cash equivalents							(2)	0
Change in Cash from discontinued operations							0	49
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash							333	(336)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period			385			613	385	613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	718			277			718	277
Eliminations
Cash Flows from Operating Activities
Net income attributable to NRG Energy, Inc.	(540)			(557)			(1,391)	(1,298)
Net Income	(540)			(557)			(1,391)	(1,298)
Income from discontinued operations				0				0
Income from continuing operations				(557)				(1,298)
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses/(earnings) of unconsolidated affiliates							1,391	1,298
Depreciation and amortization							0	0
Accretion of asset retirement obligations							0	0
Provision for credit losses							0	0
Amortization of nuclear fuel							0	0
Amortization of financing costs and debt discount/premiums							0	0
Loss on debt extinguishment, net							0	0
Amortization of emissions allowances and energy credits							0	0
Amortization of unearned equity compensation							0	0
Net loss on sale of assets and disposal of assets							0	0
Impairment losses							0	0
Changes in derivative instruments							0	0
Changes in deferred income taxes and liability for uncertain tax benefits							0	0
Changes in collateral deposits in support of energy risk management activities							0	0
Changes in nuclear decommissioning trust liability							0	0
Changes in other working capital							0	0
Cash provided/(used) by continuing operations								0
Cash provided/(used) by discontinued operations								0
Net Cash Provided/(Used) by Operating Activities							0	0
Cash Flows from Investing Activities
Intercompany dividends							(2,591)	(3,866)
Payments for acquisitions of businesses							0	0
Capital expenditures							0	0
Decrease in notes receivable								0
Net purchases of /proceeds from emission allowances							0	0
Investments in nuclear decommissioning trust fund securities							0	0
Proceeds from the sale of nuclear decommissioning trust fund securities							0	0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees							0	0
Net distributions from investments in unconsolidated affiliates							0	0
Contributions to discontinued operations								0
Cash (used)/provided by continuing operations								(3,866)
Cash used by discontinued operations								0
Net Cash (Used)/Provided by Investing Activities							(2,591)	(3,866)
Cash Flows from Financing Activities
Intercompany dividends and transfers							2,591	3,866
Payments of dividends to common stockholders							0	0
Payments for share repurchase activity							0	0
Payments for debt extinguishment costs								0
Purchase of and distributions to noncontrolling interests from subsidiaries							0	0
Proceeds from issuance of common stock							0	0
Proceeds from issuance of long-term debt							0	0
Payments of debt issuance costs							0	0
Repayments of long-term debt							0	0
Net (repayments)/proceeds of Revolving Credit Facility							0	0
Other							0
Cash used by continuing operations								3,866
Cash provided by discontinued operations								0
Net Cash Used by Financing Activities							2,591	3,866
Effect of exchange rate changes on cash and cash equivalents							0
Change in Cash from discontinued operations								0
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash							0	0
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period			0			0	0	0
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	0			0			0	0
Guarantor Subsidiaries
Cash Flows from Operating Activities
Net income attributable to NRG Energy, Inc.	492			588			1,334	1,232
Net Income	492			588			1,334	1,232
Income from discontinued operations				0				9
Income from continuing operations				588				1,223
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses/(earnings) of unconsolidated affiliates							(6)	(32)
Depreciation and amortization							232	156
Accretion of asset retirement obligations							19	25
Provision for credit losses							66	72
Amortization of nuclear fuel							40	40
Amortization of financing costs and debt discount/premiums							0	0
Loss on debt extinguishment, net							0	0
Amortization of emissions allowances and energy credits							46	21
Amortization of unearned equity compensation							0	0
Net loss on sale of assets and disposal of assets							(16)	(25)
Impairment losses							0	1
Changes in derivative instruments							(27)	10
Changes in deferred income taxes and liability for uncertain tax benefits							(52)	0
Changes in collateral deposits in support of energy risk management activities							91	136
Changes in nuclear decommissioning trust liability							39	27
Changes in other working capital							355	(401)
Cash provided/(used) by continuing operations								1,253
Cash provided/(used) by discontinued operations								17
Net Cash Provided/(Used) by Operating Activities							2,121	1,270
Cash Flows from Investing Activities
Intercompany dividends							0	0
Payments for acquisitions of businesses							(15)	(348)
Capital expenditures							(115)	(135)
Decrease in notes receivable								0
Net purchases of /proceeds from emission allowances							(15)	14
Investments in nuclear decommissioning trust fund securities							(360)	(295)
Proceeds from the sale of nuclear decommissioning trust fund securities							318	271
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees							8	1
Net distributions from investments in unconsolidated affiliates							0	0
Contributions to discontinued operations								0
Cash (used)/provided by continuing operations								(492)
Cash used by discontinued operations								0
Net Cash (Used)/Provided by Investing Activities							(179)	(492)
Cash Flows from Financing Activities
Intercompany dividends and transfers							(1,894)	(824)
Payments of dividends to common stockholders							0	0
Payments for share repurchase activity							0	0
Payments for debt extinguishment costs								0
Purchase of and distributions to noncontrolling interests from subsidiaries							0	0
Proceeds from issuance of common stock							0	0
Proceeds from issuance of long-term debt							0	0
Payments of debt issuance costs							0	0
Repayments of long-term debt							(59)	0
Net (repayments)/proceeds of Revolving Credit Facility							0	0
Other							(6)
Cash used by continuing operations								(824)
Cash provided by discontinued operations								0
Net Cash Used by Financing Activities							(1,959)	(824)
Effect of exchange rate changes on cash and cash equivalents							0
Change in Cash from discontinued operations								17
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash							(17)	(63)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period			37			95	37	95
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	20			32			20	32
Non-Guarantor Subsidiaries
Cash Flows from Operating Activities
Net income attributable to NRG Energy, Inc.	48			(31)			57	66
Net Income	48			(31)			57	67
Income from discontinued operations				0				5
Income from continuing operations				(31)				62
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses/(earnings) of unconsolidated affiliates							6	(5)
Depreciation and amortization							60	82
Accretion of asset retirement obligations							27	6
Provision for credit losses							8	11
Amortization of nuclear fuel							0	0
Amortization of financing costs and debt discount/premiums							0	0
Loss on debt extinguishment, net							0	0
Amortization of emissions allowances and energy credits							14	7
Amortization of unearned equity compensation							0	0
Net loss on sale of assets and disposal of assets							(1)	2
Impairment losses							47	101
Changes in derivative instruments							20	(12)
Changes in deferred income taxes and liability for uncertain tax benefits							11	(1)
Changes in collateral deposits in support of energy risk management activities							5	(7)
Changes in nuclear decommissioning trust liability							0	0
Changes in other working capital							(923)	(123)
Cash provided/(used) by continuing operations								123
Cash provided/(used) by discontinued operations								(9)
Net Cash Provided/(Used) by Operating Activities							(669)	114
Cash Flows from Investing Activities
Intercompany dividends							0	0
Payments for acquisitions of businesses							(262)	0
Capital expenditures							(28)	(23)
Decrease in notes receivable								0
Net purchases of /proceeds from emission allowances							0	0
Investments in nuclear decommissioning trust fund securities							0	0
Proceeds from the sale of nuclear decommissioning trust fund securities							0	0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees							2	400
Net distributions from investments in unconsolidated affiliates							2	(94)
Contributions to discontinued operations								(44)
Cash (used)/provided by continuing operations								239
Cash used by discontinued operations								(2)
Net Cash (Used)/Provided by Investing Activities							(286)	237
Cash Flows from Financing Activities
Intercompany dividends and transfers							964	(317)
Payments of dividends to common stockholders							0	0
Payments for share repurchase activity							0	0
Payments for debt extinguishment costs								0
Purchase of and distributions to noncontrolling interests from subsidiaries							(2)	(1)
Proceeds from issuance of common stock							0	0
Proceeds from issuance of long-term debt							0	0
Payments of debt issuance costs							0	0
Repayments of long-term debt							(3)	(55)
Net (repayments)/proceeds of Revolving Credit Facility							0	0
Other							0
Cash used by continuing operations								(373)
Cash provided by discontinued operations								43
Net Cash Used by Financing Activities							959	(330)
Effect of exchange rate changes on cash and cash equivalents							(2)
Change in Cash from discontinued operations								32
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash							2	(11)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period			21			38	21	38
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	23			27			23	27
NRG Energy, Inc. (Note Issuer)
Cash Flows from Operating Activities
Net income attributable to NRG Energy, Inc.	249			372			683	1,055
Net Income	249			372			683	1,055
Income from discontinued operations				(2)				385
Income from continuing operations				374				670
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses/(earnings) of unconsolidated affiliates							(1,385)	(1,266)
Depreciation and amortization							26	23
Accretion of asset retirement obligations							0	0
Provision for credit losses							0	4
Amortization of nuclear fuel							0	0
Amortization of financing costs and debt discount/premiums							23	20
Loss on debt extinguishment, net							1	47
Amortization of emissions allowances and energy credits							0	0
Amortization of unearned equity compensation							17	15
Net loss on sale of assets and disposal of assets							(5)	3
Impairment losses							0	6
Changes in derivative instruments							0	38
Changes in deferred income taxes and liability for uncertain tax benefits							243	(2)
Changes in collateral deposits in support of energy risk management activities							0	0
Changes in nuclear decommissioning trust liability							0	0
Changes in other working capital							331	(45)
Cash provided/(used) by continuing operations								(487)
Cash provided/(used) by discontinued operations								0
Net Cash Provided/(Used) by Operating Activities							(66)	(487)
Cash Flows from Investing Activities
Intercompany dividends							2,591	3,866
Payments for acquisitions of businesses							0	0
Capital expenditures							(24)	(25)
Decrease in notes receivable								2
Net purchases of /proceeds from emission allowances							0	0
Investments in nuclear decommissioning trust fund securities							0	0
Proceeds from the sale of nuclear decommissioning trust fund securities							0	0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees							5	892
Net distributions from investments in unconsolidated affiliates							0
Contributions to discontinued operations								0
Cash (used)/provided by continuing operations								4,735
Cash used by discontinued operations								0
Net Cash (Used)/Provided by Investing Activities							2,572	4,735
Cash Flows from Financing Activities
Intercompany dividends and transfers							(1,661)	(2,725)
Payments of dividends to common stockholders							(221)	(24)
Payments for share repurchase activity							(229)	(1,322)
Payments for debt extinguishment costs								(24)
Purchase of and distributions to noncontrolling interests from subsidiaries							0	0
Proceeds from issuance of common stock							1	3
Proceeds from issuance of long-term debt							59	1,833
Payments of debt issuance costs							(24)	(34)
Repayments of long-term debt							0	(2,432)
Net (repayments)/proceeds of Revolving Credit Facility							(83)	215
Other							0
Cash used by continuing operations								(4,510)
Cash provided by discontinued operations								0
Net Cash Used by Financing Activities							(2,158)	(4,510)
Effect of exchange rate changes on cash and cash equivalents							0
Change in Cash from discontinued operations								0
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash							348	(262)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period			$ 327			$ 480	327	480
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$ 675			$ 218			$ 675	$ 218

Receivables Securitization an_2

Receivables Securitization and Repurchase Facility - (Details) - Secured Debt - USD ($)	Sep. 22, 2020	Sep. 30, 2020
Receivables Facility
Debt Instrument [Line Items]
Borrowing (up to)	$ 750,000,000
Weighted average interest rate		0.489%
Borrowing outstanding		$ 0
Receivables Facility | Letter of Credit
Debt Instrument [Line Items]
Letters of credit issued		179,000,000
Repurchase Facility
Debt Instrument [Line Items]
Borrowing (up to)	75,000,000
Borrowing outstanding		$ 0
Commitment fee	$ 0
Repurchase Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%