XML 39 R27.htm IDEA: XBRL DOCUMENT v3.10.0.1

Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Other Balance Sheet Information

The following table presents the allowance for doubtful accounts included in accounts receivable, net; accumulated depreciation included in property, plant and equipment, net; accumulated amortization included in intangible assets, net and accumulated amortization included in out-of-market contracts, net:

	June 30, 2018				December 31, 2017
	(In millions)
Accounts receivable allowance for doubtful accounts	$	28			$	28
Property, plant and equipment accumulated depreciation	4,534				4,465
Intangible assets accumulated amortization	1,443				1,818
Out-of-market contracts accumulated amortization	370				358

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 sheet that sum to the total of the same such amounts shown in the statement of cash flows.

	June 30, 2018				December 31, 2017				June 30, 2017				December 31, 2016
	(In millions)
Cash and cash equivalents	$	980			$	991			$	752			$	938
Funds deposited by counterparties	71				37				19				2
Restricted cash	286				508				469				446
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$	1,337			$	1,536			$	1,240			$	1,386

Schedule of Change in Noncontrolling Interest

Noncontrolling Interest

The following table reflects the changes in NRG's noncontrolling interest balance:

	(In millions)
Balance as of December 31, 2017	$	2,314
Dividends paid to NRG Yield, Inc. public shareholders	(61		)
Distributions to noncontrolling interest	(34		)
Comprehensive income attributable to noncontrolling interest	12
Non-cash adjustments to noncontrolling interest	8
Contributions from noncontrolling interest	295
Sale of assets to NRG Yield, Inc.	(8		)
Deconsolidation of Ivanpah(a)	(89		)
Balance as of June 30, 2018	$	2,437

(a) See Note 9, Variable Interest Entities, or VIEs for further information regarding the deconsolidation of Ivanpah effective April 2018.

Redeemable Noncontrolling Interest

Redeemable Noncontrolling Interest

The following table reflects the changes in the Company's redeemable noncontrolling interest balance:

	(In millions)
Balance as of December 31, 2017	$	78
Distributions to redeemable noncontrolling interest	(2		)
Contributions from redeemable noncontrolling interest	26
Non-cash adjustments to redeemable noncontrolling interest	(9		)
Comprehensive loss attributable to redeemable noncontrolling interest	(24		)
Balance as of June 30, 2018	$	69

Disaggregation of Revenue from Contracts

The following table represents the Company’s disaggregation of revenue from contracts with customers for the three and six months ended June 30, 2018, along with the reportable segment for each category:

	Three months ended June 30, 2018
					Generation
(In millions)	Retail				Gulf Coast				East/West				Subtotal				Renewables				NRG Yield				Eliminations				Total
Energy revenue(a)(b)	$	—			$	508			$	144			$	652			$	79			$	192			$	(250	)		$	673
Capacity revenue(a)(b)	—				68				160				228				—				87				(2		)		313
Retail revenue
Mass customers	1,380				—				—				—				—				—				(1		)		1,379
Business solutions customers	437				—				—				—				—				—				—				437
Total retail revenue	1,817				—				—				—				—				—				(1		)		1,816
Mark-to-market for economic hedging activities(c)	—				289				(15		)		274				5				—				(264		)		15
Contract amortization	—				4				—				4				—				(18		)		—				(14		)
Other revenue(a)(b)	—				42				18				60				29				46				(16		)		119
Total operating revenue	1,817				911				307				1,218				113				307				(533		)		2,922
Less: Lease revenue	6				—				1				1				96				267				—				370
Less: Derivative revenue	—				898				(1		)		897				5				—				(264		)		638
Less: Contract amortization	—				4				—				4				—				(18		)		—				(14		)
Total revenue from contracts with customers	$	1,811			$	9			$	307			$	316			$	12			$	58			$	(269	)		$	1,928
(a) The following amounts of energy and capacity revenue relate to leases and are accounted for under ASC 840:
	Retail				Gulf Coast				East/West				Subtotal				Renewables				NRG Yield				Eliminations				Total
Energy revenue	$	—			$	—			$	—			$	—			$	90			$	182			$	—			$	272
Capacity revenue	—				—				—				—				—				85				—				85
Other revenue	6				—				1				1				6				—				—				13
(b) The following amounts of energy and capacity revenue relate to derivative instruments and are accounted for under ASC 815.
	Retail				Gulf Coast				East/West				Subtotal				Renewables				NRG Yield				Eliminations				Total
Energy revenue	$	—			$	610			$	(30	)		$	580			$	—			$	—			$	—			$	580
Capacity revenue	—				—				39				39				—				—				—				39
Other revenue	—				(1		)		5				4				—				—				—				4
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815.

	Six months ended June 30, 2018
					Generation
(In millions)	Retail				Gulf Coast				East/West				Subtotal				Renewables				NRG Yield				Eliminations				Total
Energy revenue(a)(b)	$	—			$	879			$	362			$	1,241			$	156			$	306			$	(411	)		$	1,292
Capacity revenue(a)(b)	—				135				300				435				—				169				(3		)		601
Retail revenue
Mass customers	2,551				—				—				—				—				—				(2		)		2,549
Business solutions customers	753				—				—				—				—				—				—				753
Total retail revenue	3,304				—				—				—				—				—				(2		)		3,302
Mark-to-market for economic hedging activities(c)	(6		)		(275		)		(25		)		(300		)		(5		)		—				220				(91		)
Contract amortization	—				7				—				7				—				(35		)		—				(28		)
Other revenue(a)(b)	—				128				34				162				48				92				(35		)		267
Total operating revenue	3,298				874				671				1,545				199				532				(231		)		5,343
Less: Lease revenue	12				—				2				2				160				448				—				622
Less: Derivative revenue	(6		)		710				79				789				(5		)		—				220				998
Less: Contract amortization	—				7				—				7				—				(35		)		—				(28		)
Total revenue from contracts with customers	$	3,292			$	157			$	590			$	747			$	44			$	119			$	(451	)		$	3,751
(a) The following amounts of energy and capacity revenue relate to leases and are accounted for under ASC 840:
	Retail				Gulf Coast				East/West				Subtotal				Renewables				NRG Yield				Eliminations				Total
Energy revenue	$	—			$	—			$	—			$	—			$	151			$	284			$	—			$	435
Capacity revenue	—				—				—				—				—				164				—				164
Other revenue	12				—				2				2				9				—				—				23
(b) The following amounts of energy and capacity revenue relate to derivative instruments and are accounted for under ASC 815.
	Retail				Gulf Coast				East/West				Subtotal				Renewables				NRG Yield				Eliminations				Total
Energy revenue	$	—			$	981			$	31			$	1,012			$	—			$	—			$	—			$	1,012
Capacity revenue	—				—				65				65				—				—				—				65
Other revenue	—				4				8				12				—				—				—				12
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815.

Contract with Customer, Asset and Liability

The following table reflects the contract assets and liabilities included in the Company’s balance sheet as of June 30, 2018:

(In millions)		June 30, 2018
Deferred customer acquisition costs		$	102
Accounts receivable, net - Contracts with customers		1,187
Accounts receivable, net - Leases		152
Accounts receivable, net - Derivative instruments		32
Total accounts receivable, net		$	1,371
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)		445
Deferred revenues		73

X

- Definition

Schedule of Change in Noncontrolling Interest [Table Text Block]

+ References

No definition available.

+ Details

Name:	nrg_ScheduleOfChangeInNoncontrollingInterestTableTextBlock
Namespace Prefix:	nrg_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Supplemental Balance Sheet Disclosures

+ References

No definition available.

+ Details

Name:	nrg_SupplementalBalanceSheetDisclosuresTableTextBlock
Namespace Prefix:	nrg_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130551-203045

+ Details

Name:	us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

+ Details

Name:	us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity.

+ References

No definition available.

+ Details

Name:	us-gaap_RedeemableNoncontrollingInterestTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(1)(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586

+ Details

Name:	us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration