NextEra Energy Partners (NEP) 10-Q 1 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Entity Registrant Name	NEXTERA ENERGY PARTNERS, LP
Entity Central Index Key	1603145
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	18,697,890

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Income Statement [Abstract]
OPERATING REVENUES	$74		$59	[1]
OPERATING EXPENSES
Operations and maintenance	16		11	[1]
Depreciation and amortization	23		16	[1]
Transmission	1		1	[1]
Taxes other than income taxes and other	3		1	[1]
Total operating expenses	43		29	[1]
OPERATING INCOME	31		30	[1]
OTHER INCOME (DEDUCTIONS)
Interest expense	-23		-19	[1]
Benefits associated with differential membership interests - net	1		0	[1]
Other—net	1		0	[1]
Total other deductions—net	-21		-19	[1]
INCOME BEFORE INCOME TAXES	10		11	[1]
INCOME TAXES	1		5	[1]
NET INCOME	9		6	[1]
Less net income attributable to noncontrolling interest	7	[2]
NET INCOME ATTRIBUTABLE TO NEXTERA ENERGY PARTNERS, LP	$2
Weighted average number of common units outstanding - basic and assuming dilution	18.7
Earnings per common unit attributable to NextEra Energy Partners, LP - basic and assuming dilution	$0.08
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.
[2]	The calculation of net income attributable to noncontrolling interest includes the pre-acquisition net income of Palo Duro and Shafter. See Note 2.

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income Statement (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
NET INCOME	$9		$6	[1]
Net unrealized gains (losses) on cash flow hedges:
Effective portion of net unrealized losses (net of income tax benefit of $2 and $0, respectively)	-8		-5	[1]
Reclassification from accumulated other comprehensive loss to net income (net of income tax expense of less than $1 and $0, respectively)	1		1	[1]
Unrealized losses on foreign currency translation (net of income tax benefit of less than $1 and $0, respectively)	-10		-7	[1]
Total other comprehensive loss, net of tax	-17		-11	[1]
COMPREHENSIVE LOSS	-8		-5	[1]
Less comprehensive income attributable to non-controlling interest	-7	[2]
COMPREHENSIVE LOSS ATTRIBUTABLE TO NEXTERA ENERGY PARTNERS, LP	($1)
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.
[2]	The calculation of comprehensive loss attributable to noncontrolling interest includes the pre-acquisition comprehensive income of Palo Duro and Shafter. See Note 2.

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Comprehensive Income (Parentheticals) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Effective portion of net unrealized gains (losses), tax expense (benefit)	$2	$0	[1]
Reclassification from accumulated other comprehensive income to net income, tax expense	1	0	[1]
Unrealized gains (losses) on foreign currency translation, tax benefit	$1	$0	[1]
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Current assets:
Cash and cash equivalents	$52	$98	[1]
Accounts receivable	33	27	[1]
Due from related parties	51	212	[1]
Restricted cash ($19 and $55 related to VIE, respectively)	23	80	[1]
Prepaid expenses	3	3	[1]
Other current assets	10	9	[1]
Total current assets	172	429	[1]
Non-current assets:
Property, plant and equipment—net ($406 and $408 related to VIE, respectively)	2,495	2,579	[1]
Construction work in progress	50	10	[1]
Deferred income taxes	130	127	[1]
Other non-current assets	81	84	[1]
Total non-current assets	2,756	2,800	[1]
TOTAL ASSETS	2,928	3,229	[1]
Current liabilities:
Accounts payable and accrued expenses	23	70	[1]
Due to related parties	23	36	[1]
Current maturities of long-term debt	78	78	[1]
Accrued interest	12	21	[1]
Other current liabilities	15	19	[1]
Total current liabilities	151	224	[1]
Non-current liabilities:
Long-term debt	1,802	1,758	[1]
Deferral related to differential membership interests—VIE	246	248	[1]
Accumulated deferred income taxes	55	56	[1]
Asset retirement obligation	20	20	[1]
Non-current due to related party	16	16	[1]
Other non-current liabilities	26	23	[1]
Total non-current liabilities	2,165	2,121	[1]
TOTAL LIABILITIES	2,316	2,345	[1]
COMMITMENTS AND CONTINGENCIES			[1]
EQUITY
Limited partners (common units issued and outstanding - 18.7)	543	554	[1]
Accumulated other comprehensive loss	-6	-3	[1]
Noncontrolling interest	75	333	[1]
TOTAL EQUITY	612	884	[1]
TOTAL LIABILITIES AND EQUITY	$2,928	$3,229	[1]
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, except Share data, unless otherwise specified
Restricted cash	$23	$80	[1]
Property, plant and equipment, net	2,495	2,579	[1]
Common units outstanding	18,700,000	18,700,000	[1]
Common units issued	18,700,000	18,700,000	[1]
Variable Interest Entity
Restricted cash	19	55	[1]
Property, plant and equipment, net	$406	$408	[1]
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$9		$6	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	23		16	[1]
Amortization of deferred financing costs	1		2	[1]
Deferred income taxes	1		5	[1]
Benefits associated with differential membership interests - net	-1		0	[1]
Changes in operating assets and liabilities:
Accounts receivable	-6		-9	[1]
Prepaid expenses and other current assets	1		2	[1]
Accounts payable and accrued expenses	-2		-1	[1]
Due to related parties	3		2	[1]
Other current liabilities	-12		6	[1]
Other non-current liabilities	-2		0	[1]
Net cash provided by operating activities	15		29	[1]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	-42		-65	[1]
Acquisitions of projects	-292		0	[1]
Changes in restricted cash	56		-3	[1]
Payments from related parties under CSCS agreement—net	159		0	[1]
Net cash used in investing activities	-119		-68	[1]
CASH FLOWS FROM FINANCING ACTIVITIES
Partners/Members' contributions	15		83	[1]
Partners/Members' distributions	-18		-36	[1]
Payments to differential membership investors	-1		0	[1]
Repayment of amount due to related party	-22		0	[1]
Issuances of long-term debt	122		15	[1]
Deferred financing costs	-2		0	[1]
Retirements of long-term debt	-35		-13	[1]
Net cash provided by financing activities	59		49	[1]
Effect of exchange rate changes on cash	-1		-1	[1]
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	-46		9	[1]
CASH AND CASH EQUIVALENTS—BEGINNING OF PERIOD	98	[1]	27	[1]
CASH AND CASH EQUIVALENTS—END OF PERIOD	52		36	[1]
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest, net of amounts capitalized	32		9	[1]
Members' noncash distributions	5		1	[1]
Members’ noncash contributions for construction costs and other expenditures	32		12	[1]
Change in accounts receivable for CITCs	0		150
Net change in accrued but not paid for capital expenditures	$4		$47	[1]
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Summary_of_Significant_Account

Summary of Significant Accounting and Reporting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting and Reporting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES
	Restricted Cash - At March 31, 2015 and December 31, 2014, approximately $19 million and $55 million, respectively, of current restricted cash on NEP's condensed consolidated balance sheets represents cash at Palo Duro to fund outstanding construction accruals. In addition, at December 31, 2014, approximately $22 million of current restricted cash, also included in due to related parties on NEP's condensed consolidated balance sheets, represents CITC proceeds received by Genesis that was due to NEECH. The remaining restricted cash and approximately $5 million and $3 million of other non-current assets on NEP’s condensed consolidated balance sheets as of March 31, 2015 and December 31, 2014, respectively, are held by subsidiaries to pay for certain capital or operating expenditures, as well as to fund required equity contributions pursuant to restrictions contained in the debt agreements. Restricted cash reported as current assets are recorded as such based on the timing of the anticipated use of these funds within the next twelve months.
	Noncontrolling Interests - After the completion of NEP's IPO, NEP owns a controlling, non-economic general partnership interest and a 20.1% limited partnership interest in NEP OpCo and NEE Equity owns a noncontrolling 79.9% limited partnership interest in NEP OpCo. The following table reflects the changes in NEP's noncontrolling interest balance for the three months ended March 31, 2015:
		Noncontrolling
		Interest
		(millions)
	Noncontrolling interest at December 31, 2014(a)	$	160
	Net assets of Palo Duro and Shafter as of December 31, 2014	173
	Balance at December 31, 2014(b)	333
	Payment to NEE for the Palo Duro and Shafter acquisitions	(234		)
	Cash distributions	(14		)
	Noncash distributions	(4		)
	Noncash contributions - Palo Duro and Shafter between January 1, 2015 and the respective acquisition dates	45
	Noncash allocation to NEP of Palo Duro and Shafter equity as of the respective acquisition dates	(44		)
	Comprehensive loss attributable to noncontrolling interest, including pre-acquisition net income of Palo Duro and Shafter	(7		)
	Noncontrolling interest at March 31, 2015	$	75
	____________________
	(a)	As reported in the 2014 Form 10-K.
	(b)	Retrospectively adjusted as discussed in Note 2.
	Equity - In February 2015, NEP distributed approximately $4 million to its unitholders. In addition, in April 2015, NEP declared a distribution of approximately $4 million to its unitholders.
	Sale of Differential Membership Interests - In December 2014, a subsidiary of NEER sold its Class B membership interests in Palo Duro to third-party tax equity investors for approximately $248 million. The holders of the Class B membership interests will receive a portion of the economic attributes of the facilities, including income tax attributes, for ten years. The tax equity investors will also make ongoing deferred contingent capital contributions based on the production and sale of electricity that generates production tax credits under Section 45 of the Internal Revenue Code of 1986, as amended. The transactions are not treated as a sale under the accounting rules and the proceeds received are deferred and recorded as a liability in deferral related to differential membership interests - VIE on NEP's condensed consolidated balance sheets. The deferred amount is being recognized in benefits associated with differential membership interests - net in NEP's condensed consolidated statements of income as the Class B members receive their portion of the economic attributes. NEP operates and manages Palo Duro, and consolidates the entities that directly and indirectly own the wind project.
	Variable Interest Entities (VIEs) - An entity is considered to be a VIE when its total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support, or its equity investors, as a group, lack the characteristics of having a controlling financial interest. A reporting company is required to consolidate a VIE as its primary beneficiary when it has both the power to direct the activities of the VIE that most significantly impact the VIE's economic performance, and the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE. NEP evaluates whether an entity is a VIE whenever reconsideration events as defined by the accounting guidance occur.
	At March 31, 2015, NEP has one VIE which it consolidates, Palo Duro. The assets and liabilities of Palo Duro, consisting primarily of property, plant and equipment and deferral related to differential membership interests, totaled approximately $447 million and $287 million at March 31, 2015, respectively, and approximately $491 million and $326 million at December 31, 2014, respectively. See Note 2 and Note 7.
	Immaterial Restatement - Subsequent to the issuance of NEP's combined financial statements as of March 31, 2014, it was determined that other comprehensive loss for the three months ended March 31, 2014 was understated by approximately $1 million, deferred tax assets and deferred tax liabilities were overstated by $1 million and $5 million, respectively, and equity was understated by $4 million as of March 31, 2014. As a result, the prior period in the accompanying condensed consolidated financial statements and the Notes thereto have been corrected to appropriately reflect these balances.
	Amendments to the Consolidation Analysis - In February 2015, the FASB issued a new accounting standard that will modify current consolidation guidance. The standard makes changes to both the variable interest entity model and the voting interest entity model, including modifying the evaluation of whether limited partnerships or similar legal entities are VIEs or voting interest entities and amending the guidance for assessing how relationships of related parties affect the consolidation analysis of VIEs. The standard is effective for NEP beginning January 1, 2016. NEP is currently evaluating the effect the adoption of this standard will have, if any, on its consolidated financial statements.
	Presentation of Debt Issuance Costs - In April 2015, the FASB issued a new accounting standard which changes the presentation of debt issuance costs in financial statements. The amendments in this standard require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by this standard. The standard is effective for NEP beginning January 1, 2016. NEP is currently evaluating the effect the adoption of this standard will have on its consolidated financial statements.

Acquisitions_Notes

Acquisitions (Notes)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS
	In January 2015, a subsidiary of NEP acquired from NEER an approximately 250 MW wind energy generating facility, Palo Duro, located in Hansford and Ochiltree Counties, Texas, for approximately $228 million plus the assumption of approximately $248 million in liabilities related to differential membership interests. Palo Duro began commercial operations in December 2014.
	In February 2015, a subsidiary of NEP acquired from NEER the development rights and facilities under construction of an approximately 20 MW solar generating facility located in Shafter, California for approximately $64 million.
	In connection with the acquisitions, a subsidiary of NEP borrowed approximately $122 million under its existing revolving credit facility during the three months ended March 31, 2015.
	The following is a summary of assets and liabilities transferred in connection with the acquisitions of Palo Duro on January 9, 2015 and Shafter on February 27, 2015.
		Assets acquired and
		liabilities assumed
		(millions)
	Current assets	$	70
	Property, plant and equipment - net	455
	Non-current assets	21
	Total assets	546
	Deferral related to differential membership interests - VIE	248
	Other current and non-current liabilities	80
	Total liabilities	328
	Net assets acquired	$	218
	The acquisitions were a transfer of assets between entities under common control, which required them to be accounted for as if the transfers occurred since the inception of common control, with prior periods retrospectively adjusted to furnish comparative information. Accordingly, the accompanying condensed consolidated financial statements have been retrospectively adjusted to include the historical results and financial position of Palo Duro and Shafter prior to their respective acquisition dates. In addition, at December 31, 2013, the assets and liabilities of Palo Duro and Shafter combined totaled approximately $6 million and less than $1 million, respectively. The revenues of Palo Duro, which began commercial operations in December 2014, were approximately $3 million for the year ended December 31, 2014. The pre-tax loss of Palo Duro and Shafter for the years ended December 31, 2014 and 2013 combined totaled approximately $1 million and less than $1 million, respectively. Palo Duro and Shafter did not have any operating activity in 2012.
	On April 28, 2015, an indirect subsidiary of NEP entered into a purchase and sale agreement with an indirect subsidiary of NEER, to acquire four wind generating facilities with contracted generating capacity totaling approximately 664 MW. NEP expects to complete the acquisitions in the second quarter of 2015 for a total consideration of approximately $412 million, plus the assumption of approximately $269 million in debt and tax equity financing. See Part II - Item 5 for further discussion.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES
	For periods ending prior to July 1, 2014, income taxes are calculated using the separate return method for each of the project entities acquired in connection with the IPO that are structured as corporations or as limited liability companies. For Palo Duro and Shafter, income taxes are calculated using the separate return method for periods prior to their respective acquisition dates. Income taxes are not included for entities that are structured as flow through entities (partnerships) electing to be taxed as partnerships.
	For periods after the date a project is acquired by NEP (NEP acquisition date), taxes are calculated for NEP as a single taxpaying entity for U.S. federal and state income tax purposes (based on its election to be taxed as a corporation). Because NEP OpCo is a limited partnership electing to be taxed as a partnership for U.S. federal and state income tax purposes, NEP has only included its 20.1% proportionate share of U.S. income taxes. The U.S. income taxes on the remaining 79.9% of NEP OpCo earnings were allocated to NEE Equity and are not included in NEP's condensed consolidated financial statements. The Canadian subsidiaries are all Canadian taxpayers subject to Canadian income tax, and therefore all Canadian taxes are included in NEP's condensed consolidated financial statements. NEE Equity's share of Canadian taxes is included in noncontrolling interest in NEP's condensed consolidated financial statements.
	The effective tax rate for the three months ended March 31, 2015 and 2014 was approximately 10% and 45%, respectively. For periods ending prior to July 1, 2014, the effective tax rate is affected by recurring items, such as the relative amount of income earned in jurisdictions, the 50% tax basis reduction due to CITCs that are recognized when assets are placed into service, and valuation allowances on deferred tax assets. Additionally, in periods ending after July 1, 2014, the effective tax rate is affected by taxes attributable to the noncontrolling interest, and the taxation of Canadian income in both Canada and the U.S.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS
	The fair value of assets and liabilities are determined using either unadjusted quoted prices in active markets (Level 1) or pricing inputs that are observable (Level 2) whenever that information is available and using unobservable inputs (Level 3) to estimate fair value only when relevant observable inputs are not available. NEP uses several different valuation techniques to measure the fair value of assets and liabilities relying primarily on the market approach of using prices and other market information for identical or comparable assets and liabilities for those assets and liabilities that are measured at fair value on a recurring basis. Certain financial instruments may be valued using multiple inputs including discount rates, counterparty credit ratings and credit enhancements. NEP’s assessment of the significance of any particular input to the fair value measurement requires judgment and may affect the fair value measurement of its assets and liabilities and the placement of those assets and liabilities within the fair value hierarchy levels. Non-performance risk, including the consideration of a credit valuation adjustment, is also considered in the determination of fair value for all assets and liabilities measured at fair value. All transfers between fair value hierarchy levels occur at the beginning of the period in which the transfer occurred.
	Cash Equivalents and Restricted Cash - Cash equivalents and restricted cash consist of short-term, highly liquid investments with original maturities of three months or less. NEP primarily holds these investments in money market funds. The fair value of these funds is calculated using current market prices.
	Interest Rate Swaps and Foreign Currency Contracts - NEP estimates the fair value of its derivatives using a discounted cash flows valuation technique based on the net amount of estimated future cash inflows and outflows related to the agreements. The primary inputs used in the fair value measurements include the contractual terms of the derivative agreements, foreign currency exchange rates, current interest rates and credit spreads. The significant inputs for the resulting fair value measurement are market-observable inputs and the measurements are reported as Level 2 in the fair value hierarchy. At March 31, 2015, the fair value of NEP's foreign currency contracts is less than $1 million.
	NEP’s financial assets and liabilities and other fair value measurements made on a recurring basis by fair value hierarchy level are as follows:
		31-Mar-15						December 31, 2014
		Level 1		Level 2		Total		Level 1		Level 2		Total
		(millions)
	Assets:
	Cash equivalents	$	13	$	—	$	13	$	86	$	—	$	86
	Restricted cash	23		—		23		80		—		80
	Interest rate swaps	—		—		—		—		2		2
	Total assets	$	36	$	—	$	36	$	166	$	2	$	168
	Liabilities:
	Interest rate swaps	$	—	$	16	$	16	$	—	$	10	$	10
	Total liabilities	$	—	$	16	$	16	$	—	$	10	$	10
	Fair Value of Financial Instruments Recorded at the Carrying Amount - The carrying amounts of accounts receivable approximate their fair values. The carrying amounts and estimated fair values of other financial instruments, excluding assets and liabilities which are recorded at fair value and disclosed above, are as follows:
		31-Mar-15				December 31, 2014
		Carrying		Fair		Carrying		Fair
		Value		Value		Value		Value
		(millions)
	Notes receivable(a)	$	20	$	20	$	20	$	20
	Long-term debt, including current maturities(b)	$	1,880	$	1,960	$	1,836	$	1,902
	____________________
	(a)	Primarily classified as held to maturity. Fair value approximates carrying amount as they bear interest primarily at variable rates and have long-term maturities (Level 2) and are included in other assets on the condensed consolidated balance sheet.
	(b)	Fair value is estimated based on the borrowing rates as of each date for similar issues of debt with similar remaining maturities (Level 2).

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activity	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activity	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITY
	NEP recognizes all derivative instruments, when required to be marked to market, on the balance sheet as either assets or liabilities and measures them at fair value each reporting period. In connection with its debt financings in September 2012 and June 2014, NEP entered into interest rate swap agreements to manage interest rate cash flow risk. Under the interest rate swap agreements, NEP pays a fixed rate of interest and receives a floating rate of interest over the term of the agreements without the exchange of the underlying notional amounts. These agreements allow NEP to offset the variability of its floating-rate loan interest cash flows with the variable interest cash flows received from the interest rate swap agreements. The commencement and termination dates of the interest rate swap agreements and the related hedging relationship coincide with the corresponding dates of the underlying variable-rate debt instruments, which mature in 2030 and 2032. As of March 31, 2015 and December 31, 2014, the combined notional amounts of the swap agreements were approximately $321 million and $339 million, respectively. In order to apply hedge accounting, the transactions must be designated as hedges and must be highly effective in offsetting the hedged risk. For interest rate swaps, generally NEP assesses a hedging instrument’s effectiveness by using non-statistical methods including dollar value comparisons of the change in the fair value of the derivative to the change in the fair value or cash flows of the hedged item. Hedge effectiveness is tested at the inception of the hedge and on at least a quarterly basis throughout the hedge’s life. The effective portion of changes in the fair value of derivatives accounted for as cash flow hedges are deferred and recorded as a component of accumulated other comprehensive income (loss) (AOCI). The amounts deferred in AOCI are recognized in earnings when the hedged transactions occur. Any amounts excluded from the assessment of hedge effectiveness, as well as the ineffective portion of the gain or loss, is reported in current earnings.
	Approximately $5 million of net losses included in AOCI at March 31, 2015, is expected to be reclassified into interest expense within the next 12 months as interest payments are made. Such amount assumes no change in interest rates. Cash flows from these interest rate swap contracts are reported in cash flows from operating activities in NEP's condensed consolidated statements of cash flows.
	The fair values of NEP's derivative instruments designated as cash flow hedging instruments are included on NEP's condensed consolidated balance sheets as follows:
		31-Mar-15						December 31, 2014
		Assets			Liabilities			Assets		Liabilities
		(millions)
	Interest rate swaps:
	Other non-current assets	$	—		$	1		$	5	$	—
	Other current liabilities	$	—		$	6		$	3	$	3
	Other non-current liabilities	$	—		$	11		$	—	$	7
	Gains (losses) related to NEP's cash flow hedges are recorded in NEP's condensed consolidated financial statements as follows:
		Three Months Ended March 31,
		2015			2014
		(millions)
	Interest rate swaps:
	Losses recognized in other comprehensive income	$	(10	)	$	(5	)
	Losses reclassified from AOCI to net income(a)	$	1		$	1
	____________________
	(a)  Included in interest expense.
	In January 2015, NEP entered into certain foreign currency exchange contracts to economically hedge its cash flows from foreign currency rate fluctuations. As of March 31, 2015, the notional amount of the foreign currency contracts was approximately $32 million. During the three months ended March 31, 2015, NEP recorded less than $1 million of gains related to the foreign currency contracts in other - net in the condensed consolidated statements of income.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
		Accumulated Other Comprehensive Income (Loss)
		Net Unrealized			Net Unrealized			Total
		Gains (Losses) on			Losses on
		Cash Flow Hedges			Foreign Currency
					Translation
		(millions)
	Three months ended March 31, 2015
	Balances, December 31, 2014	$	(4	)	$	(39	)	$	(43	)
	Other comprehensive loss before reclassification	(8		)	(10		)	(18		)
	Amounts reclassified from AOCI to interest expense	1			—			1
	Net other comprehensive loss	(7		)	(10		)	(17		)
	Balances, March 31, 2015	(11		)	(49		)	(60		)
	AOCI attributable to noncontrolling interest	(10		)	(44		)	(54		)
	AOCI attributable to NextEra Energy Partners, March 31, 2015	$	(1	)	$	(5	)	$	(6	)
		Accumulated Other Comprehensive Income (Loss)
		Net Unrealized			Net Unrealized			Total
		Gains (Losses) on			Losses on
		Cash Flow Hedges			Foreign Currency
					Translation
		(millions)
	Three months ended March 31, 2014
	Balances, December 31, 2013	$	10		$	(25	)	$	(15	)
	Other comprehensive loss before reclassification	(5		)	(7		)	(12		)
	Amounts reclassified from AOCI to interest expense	1			—			1
	Net other comprehensive loss	(4		)	(7		)	(11		)
	Balances, March 31, 2014	$	6		$	(32	)	$	(26	)

Related_Party_Transactions_Not

Related Party Transactions (Notes)	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS
	Each project entered into O&M agreements and ASAs with subsidiaries of NEER whereby the projects pay a certain annual fee plus actual costs incurred in connection with certain O&M and administrative services performed under these agreements. NEP’s O&M expenses for each of the three months ended March 31, 2015 and 2014 include approximately $1 million related to such services. Additionally, Northern Colorado pays an affiliate for transmission services. NEP’s transmission expense for the three months ended March 31, 2015 and 2014 represents the fees paid for these services. At March 31, 2015 and December 31, 2014, the net payables for these services, as well as for payroll and other payments made on behalf of these projects, were approximately $22 million and $7 million, respectively, and are included in due to related parties on NEP's condensed consolidated balance sheets.
	Management Services Agreement - Effective July 1, 2014, subsidiaries of NEP entered into a MSA with indirect wholly owned subsidiaries of NEE, under which operational, management and administrative services are provided to NEP, including managing NEP’s day to day affairs and providing individuals to act as NEP GP’s executive officers and directors, in addition to those services that are provided under the existing O&M agreements and ASAs described above between NEER subsidiaries and NEP subsidiaries. NEP OpCo will pay NEE an annual management fee equal to the greater of 1% of the sum of NEP OpCo’s net income plus interest expense, income tax expense and depreciation and amortization expense less certain non-cash, non-recurring items for the most recently ended fiscal year and $4 million (as adjusted for inflation beginning in 2016), which will be paid in quarterly installments of $1 million with an additional payment each January to the extent 1% of the sum of NEP OpCo’s net income plus interest expense, income tax expense and depreciation and amortization expense less certain non-cash, non-recurring items for the preceding fiscal year exceeds $4 million (as adjusted for inflation beginning in 2016). NEP OpCo will also make certain payments to NEE based on the achievement by NEP OpCo of certain target quarterly distribution levels to its unitholders (IDR Fees). NEP’s O&M expenses for the three months ended March 31, 2015 include approximately $1 million related to payments made under the MSA. There was no expense for the three months ended March 31, 2014 related to the MSA.
	Cash Sweep and Credit Support Agreement - Effective July 1, 2014, NEP OpCo entered into a CSCS agreement with NEER, under which NEER and certain of its subsidiaries may provide credit support in the form of letters of credit and guarantees to satisfy NEP’s subsidiaries’ contractual obligations. NEP OpCo will pay NEER an annual credit support fee based on the level and cost of the credit support provided, payable in quarterly installments. NEP’s expense for the three months ended March 31, 2015 includes less than $1 million related to payments made under the CSCS agreement. There was no expense for the three months ended March 31, 2014 related to the CSCS agreement.
	NEER and certain of its subsidiaries may withdraw funds received by NEP OpCo under the CSCS agreement, or its subsidiaries in connection with certain of the long-term debt agreements, (Project Sweeps), and hold those funds in accounts belonging to NEER or its subsidiaries to the extent the funds are not required to pay project costs or otherwise required to be maintained by NEP's subsidiaries. NEER and its subsidiaries may keep the funds until the financing agreements permit distributions to be made, or, in the case of NEP OpCo, until such funds are required to make distributions or to pay expenses or other operating costs or NEP OpCo otherwise demands the return of such funds. If NEER fails to return withdrawn funds when required by NEP's subsidiaries’ financing agreements, the lenders will be entitled to draw on credit support provided by NEER in the amount of such withdrawn funds. If NEER or one of its affiliates realizes any earnings on the withdrawn funds prior to the return of such funds, it will be permitted to retain those earnings. The cash sweep amount held in accounts belonging to NEER or its subsidiaries as of March 31, 2015 and December 31, 2014 were approximately $51 million and $211 million, respectively, and are included in due from related parties on NEP’s condensed consolidated balance sheets.
	Guarantees and Letters of Credit Entered into by Related Parties - Certain PPAs include requirements of the project entities to meet certain performance obligations. NEECH has provided letters of credit or guarantees for certain of these performance obligations and payment of any obligations from the transactions contemplated by the PPAs. In addition, certain of the financing agreements require cash and cash equivalents to be reserved for various purposes. In accordance with the terms of these financing agreements, guarantees from NEECH have been substituted in place of these cash and cash equivalents reserve requirements. NEECH also guarantees the Project Sweep amounts held in accounts belonging to NEER as described above. As of March 31, 2015, NEECH guaranteed or provided letters of credit totaling approximately $485 million related to these obligations.
	Non-current Due to Related Party - As of March 31, 2015 and December 31, 2014, the approximately $16 million reported in non-current due to related party on NEP's condensed consolidated balance sheets represents an amount due from Palo Duro to NEER to refund NEER for certain transmission costs paid on behalf of Palo Duro. Amounts will be paid to NEER as Palo Duro receives payments from a third party for a related note receivable in the amount of approximately $16 million recorded in other non-current assets on NEP’s condensed consolidated balance sheets.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES
	Land Use Commitments - The project owners are parties to various agreements that provide for payments to landowners for the right to use the land upon which the projects are located. These leases and easements can typically be renewed by the project owners for various periods. The annual fees range from minimum rent payments varying by lease to maximum rent payments of a certain percentage of gross revenues, varying by lease. Total lease expense was approximately $3 million for each of the three months ended March 31, 2015 and 2014, respectively, and is classified as operations and maintenance expenses in NEP's condensed consolidated statements of income.
	Genesis' land lease includes a right-of-way lease/grant that provides for payments to the BLM for the right to use the public lands upon which the project is located. The lease may be renewed at expiration at Genesis' option and will be subject to the regulations existing at the time of renewal. In connection with the terms of this lease, Genesis obtained a surety bond from a non-affiliated party in favor of the BLM for approximately $23 million. The surety bond remains in effect until the BLM is satisfied that there is no outstanding liability on the bond or satisfactory replacement bond coverage is furnished.
	The related minimum and varying lease payments are based on fair value. These payments are considered contingent rent and, therefore, expense is recognized as incurred.
	The total minimum non-cancelable rental commitments at March 31, 2015 under these land use agreements are as follows:
		Land Use
		Commitments
		(millions)
	2015 (Remaining)	$	4
	2016	5
	2017	5
	2018	5
	2019	5
	2020	5
	Thereafter	139
	Total minimum land use payments	$	168
	Development, Engineering and Construction Commitments - At March 31, 2015, Shafter had several open engineering, procurement and construction contracts related to the procurement of materials and services. Those contracts have varying payment terms and some include performance obligations that allow Shafter to receive liquidated damages if the contractor does not perform. During the three months ended March 31, 2015, Shafter purchased $39 million under these contracts, for which costs have been capitalized in construction work in progress. As of March 31, 2015, Shafter has remaining commitments under these contracts of approximately $4 million.
	Letter of Credit Facility - Genesis entered into a letter of credit (LOC) facility, under which the LOC lender may issue standby letters of credit not to exceed approximately $83 million, with a maturity date of August 15, 2017.
	The purpose and amounts of letters of credit outstanding as of March 31, 2015 are as follows:
	LOC Facility Purpose	Amount		Outstanding Dates
		(millions)
	PPA security	$	25	September 2011 - Maturity
	Large generator interconnection agreement obligations	8		September 2011 - Maturity
	O&M reserve	10		December 2013 - Maturity
	Debt service reserve	35		August 2014 - Maturity
	Total	$	78
	Canadian FIT Contracts - The FIT contracts relating to Summerhaven, Conestogo and Bluewater require suppliers to source a minimum percentage of their equipment and services from Ontario resident suppliers to meet the minimum required domestic content level (MRDCL). The MRDCL for Summerhaven and Conestogo is 25% and the MRDCL for Bluewater is 50%. Following their respective CODs, Summerhaven, Conestogo and Bluewater submitted reports to the IESO summarizing how they achieved the MRDCL for their respective projects (domestic content reports) and the IESO issued letters to Summerhaven, Conestogo and Bluewater acknowledging the completeness of their domestic content reports. The IESO has the right to audit the Summerhaven, Conestogo and Bluewater projects for a period of up to 7 years post-COD to confirm that they complied with the domestic content requirements under their respective FIT contracts and achieved their respective MRDCLs. The failure by any of these projects to achieve its MRDCL could result in a default by such project under its FIT contract, which default may not be possible to cure and could result in a termination of its FIT contract, without compensation, by the IESO. A termination of the FIT contract for Summerhaven, Conestogo or Bluewater could negatively affect revenues generated by such project and have a material adverse effect on NEP's business, financial condition, results of operations and ability to make cash distributions to its unitholders.

Summary_of_Significant_Account1

Summary of Significant Accounting and Reporting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Restricted Cash	Restricted Cash - At March 31, 2015 and December 31, 2014, approximately $19 million and $55 million, respectively, of current restricted cash on NEP's condensed consolidated balance sheets represents cash at Palo Duro to fund outstanding construction accruals. In addition, at December 31, 2014, approximately $22 million of current restricted cash, also included in due to related parties on NEP's condensed consolidated balance sheets, represents CITC proceeds received by Genesis that was due to NEECH. The remaining restricted cash and approximately $5 million and $3 million of other non-current assets on NEP’s condensed consolidated balance sheets as of March 31, 2015 and December 31, 2014, respectively, are held by subsidiaries to pay for certain capital or operating expenditures, as well as to fund required equity contributions pursuant to restrictions contained in the debt agreements. Restricted cash reported as current assets are recorded as such based on the timing of the anticipated use of these funds within the next twelve months
Noncontrolling Interests	Noncontrolling Interests - After the completion of NEP's IPO, NEP owns a controlling, non-economic general partnership interest and a 20.1% limited partnership interest in NEP OpCo and NEE Equity owns a noncontrolling 79.9% limited partnership interest in NEP OpCo. The following table reflects the changes in NEP's noncontrolling interest balance for the three months ended March 31, 2015:
		Noncontrolling
		Interest
		(millions)
	Noncontrolling interest at December 31, 2014(a)	$	160
	Net assets of Palo Duro and Shafter as of December 31, 2014	173
	Balance at December 31, 2014(b)	333
	Payment to NEE for the Palo Duro and Shafter acquisitions	(234		)
	Cash distributions	(14		)
	Noncash distributions	(4		)
	Noncash contributions - Palo Duro and Shafter between January 1, 2015 and the respective acquisition dates	45
	Noncash allocation to NEP of Palo Duro and Shafter equity as of the respective acquisition dates	(44		)
	Comprehensive loss attributable to noncontrolling interest, including pre-acquisition net income of Palo Duro and Shafter	(7		)
	Noncontrolling interest at March 31, 2015	$	75
	____________________
	(a)	As reported in the 2014 Form 10-K.
	(b)	Retrospectively adjusted as discussed in Note 2.
Equity	Equity - In February 2015, NEP distributed approximately $4 million to its unitholders.
Sale of Differential Membership Interests	Sale of Differential Membership Interests - In December 2014, a subsidiary of NEER sold its Class B membership interests in Palo Duro to third-party tax equity investors for approximately $248 million. The holders of the Class B membership interests will receive a portion of the economic attributes of the facilities, including income tax attributes, for ten years. The tax equity investors will also make ongoing deferred contingent capital contributions based on the production and sale of electricity that generates production tax credits under Section 45 of the Internal Revenue Code of 1986, as amended. The transactions are not treated as a sale under the accounting rules and the proceeds received are deferred and recorded as a liability in deferral related to differential membership interests - VIE on NEP's condensed consolidated balance sheets. The deferred amount is being recognized in benefits associated with differential membership interests - net in NEP's condensed consolidated statements of income as the Class B members receive their portion of the economic attributes. NEP operates and manages Palo Duro, and consolidates the entities that directly and indirectly own the wind project.
Variable Interest Entities (VIEs)	Variable Interest Entities (VIEs) - An entity is considered to be a VIE when its total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support, or its equity investors, as a group, lack the characteristics of having a controlling financial interest. A reporting company is required to consolidate a VIE as its primary beneficiary when it has both the power to direct the activities of the VIE that most significantly impact the VIE's economic performance, and the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE. NEP evaluates whether an entity is a VIE whenever reconsideration events as defined by the accounting guidance occur.
	At March 31, 2015, NEP has one VIE which it consolidates, Palo Duro. The assets and liabilities of Palo Duro, consisting primarily of property, plant and equipment and deferral related to differential membership interests, totaled approximately $447 million and $287 million at March 31, 2015, respectively, and approximately $491 million and $326 million at December 31, 2014, respectively. See Note 2 and Note 7.
Immaterial Restatement	Immaterial Restatement - Subsequent to the issuance of NEP's combined financial statements as of March 31, 2014, it was determined that other comprehensive loss for the three months ended March 31, 2014 was understated by approximately $1 million, deferred tax assets and deferred tax liabilities were overstated by $1 million and $5 million, respectively, and equity was understated by $4 million as of March 31, 2014. As a result, the prior period in the accompanying condensed consolidated financial statements and the Notes thereto have been corrected to appropriately reflect these balances.
Amendments to the Consolidation Analysis	Amendments to the Consolidation Analysis - In February 2015, the FASB issued a new accounting standard that will modify current consolidation guidance. The standard makes changes to both the variable interest entity model and the voting interest entity model, including modifying the evaluation of whether limited partnerships or similar legal entities are VIEs or voting interest entities and amending the guidance for assessing how relationships of related parties affect the consolidation analysis of VIEs. The standard is effective for NEP beginning January 1, 2016. NEP is currently evaluating the effect the adoption of this standard will have, if any, on its consolidated financial statements.
Hedge Effectiveness	In order to apply hedge accounting, the transactions must be designated as hedges and must be highly effective in offsetting the hedged risk. For interest rate swaps, generally NEP assesses a hedging instrument’s effectiveness by using non-statistical methods including dollar value comparisons of the change in the fair value of the derivative to the change in the fair value or cash flows of the hedged item. Hedge effectiveness is tested at the inception of the hedge and on at least a quarterly basis throughout the hedge’s life. The effective portion of changes in the fair value of derivatives accounted for as cash flow hedges are deferred and recorded as a component of accumulated other comprehensive income (loss) (AOCI). The amounts deferred in AOCI are recognized in earnings when the hedged transactions occur. Any amounts excluded from the assessment of hedge effectiveness, as well as the ineffective portion of the gain or loss, is reported in current earnings.
Presentation of Debt Issuance Costs	Presentation of Debt Issuance Costs - In April 2015, the FASB issued a new accounting standard which changes the presentation of debt issuance costs in financial statements. The amendments in this standard require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by this standard. The standard is effective for NEP beginning January 1, 2016. NEP is currently evaluating the effect the adoption of this standard will have on its consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting and Reporting Policies (Tables)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Changes in noncontrolling interest balance	The following table reflects the changes in NEP's noncontrolling interest balance for the three months ended March 31, 2015:
		Noncontrolling
		Interest
		(millions)
	Noncontrolling interest at December 31, 2014(a)	$	160
	Net assets of Palo Duro and Shafter as of December 31, 2014	173
	Balance at December 31, 2014(b)	333
	Payment to NEE for the Palo Duro and Shafter acquisitions	(234		)
	Cash distributions	(14		)
	Noncash distributions	(4		)
	Noncash contributions - Palo Duro and Shafter between January 1, 2015 and the respective acquisition dates	45
	Noncash allocation to NEP of Palo Duro and Shafter equity as of the respective acquisition dates	(44		)
	Comprehensive loss attributable to noncontrolling interest, including pre-acquisition net income of Palo Duro and Shafter	(7		)
	Noncontrolling interest at March 31, 2015	$	75
	____________________
	(a)	As reported in the 2014 Form 10-K.
	(b)	Retrospectively adjusted as discussed in Note 2.

Acquisitions_Tables

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The following is a summary of assets and liabilities transferred in connection with the acquisitions of Palo Duro on January 9, 2015 and Shafter on February 27, 2015.
		Assets acquired and
		liabilities assumed
		(millions)
	Current assets	$	70
	Property, plant and equipment - net	455
	Non-current assets	21
	Total assets	546
	Deferral related to differential membership interests - VIE	248
	Other current and non-current liabilities	80
	Total liabilities	328
	Net assets acquired	$	218

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of financial assets and liabilities and other fair value measurements on a recurring basis	’s financial assets and liabilities and other fair value measurements made on a recurring basis by fair value hierarchy level are as follows:
		31-Mar-15						December 31, 2014
		Level 1		Level 2		Total		Level 1		Level 2		Total
		(millions)
	Assets:
	Cash equivalents	$	13	$	—	$	13	$	86	$	—	$	86
	Restricted cash	23		—		23		80		—		80
	Interest rate swaps	—		—		—		—		2		2
	Total assets	$	36	$	—	$	36	$	166	$	2	$	168
	Liabilities:
	Interest rate swaps	$	—	$	16	$	16	$	—	$	10	$	10
	Total liabilities	$	—	$	16	$	16	$	—	$	10	$	10
Schedule of other financial instrument, carrying amounts and estimated fair values	The carrying amounts and estimated fair values of other financial instruments, excluding assets and liabilities which are recorded at fair value and disclosed above, are as follows:
		31-Mar-15				December 31, 2014
		Carrying		Fair		Carrying		Fair
		Value		Value		Value		Value
		(millions)
	Notes receivable(a)	$	20	$	20	$	20	$	20
	Long-term debt, including current maturities(b)	$	1,880	$	1,960	$	1,836	$	1,902

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activity (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of the fair values of derivative instruments designated as cash flow hedging instruments included in balance sheets	The fair values of NEP's derivative instruments designated as cash flow hedging instruments are included on NEP's condensed consolidated balance sheets as follows:
		31-Mar-15						December 31, 2014
		Assets			Liabilities			Assets		Liabilities
		(millions)
	Interest rate swaps:
	Other non-current assets	$	—		$	1		$	5	$	—
	Other current liabilities	$	—		$	6		$	3	$	3
	Other non-current liabilities	$	—		$	11		$	—	$	7
Schedule of gains (losses) related to cash flow hedges	Gains (losses) related to NEP's cash flow hedges are recorded in NEP's condensed consolidated financial statements as follows:
		Three Months Ended March 31,
		2015			2014
		(millions)
	Interest rate swaps:
	Losses recognized in other comprehensive income	$	(10	)	$	(5	)
	Losses reclassified from AOCI to net income(a)	$	1		$	1
	____________________
	(a)  Included in interest expense.

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of accumulated other comprehensive income (loss)
		Accumulated Other Comprehensive Income (Loss)
		Net Unrealized			Net Unrealized			Total
		Gains (Losses) on			Losses on
		Cash Flow Hedges			Foreign Currency
					Translation
		(millions)
	Three months ended March 31, 2015
	Balances, December 31, 2014	$	(4	)	$	(39	)	$	(43	)
	Other comprehensive loss before reclassification	(8		)	(10		)	(18		)
	Amounts reclassified from AOCI to interest expense	1			—			1
	Net other comprehensive loss	(7		)	(10		)	(17		)
	Balances, March 31, 2015	(11		)	(49		)	(60		)
	AOCI attributable to noncontrolling interest	(10		)	(44		)	(54		)
	AOCI attributable to NextEra Energy Partners, March 31, 2015	$	(1	)	$	(5	)	$	(6	)
		Accumulated Other Comprehensive Income (Loss)
		Net Unrealized			Net Unrealized			Total
		Gains (Losses) on			Losses on
		Cash Flow Hedges			Foreign Currency
					Translation
		(millions)
	Three months ended March 31, 2014
	Balances, December 31, 2013	$	10		$	(25	)	$	(15	)
	Other comprehensive loss before reclassification	(5		)	(7		)	(12		)
	Amounts reclassified from AOCI to interest expense	1			—			1
	Net other comprehensive loss	(4		)	(7		)	(11		)
	Balances, March 31, 2014	$	6		$	(32	)	$	(26	)

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Minimum rental commitments under land use agreements	The total minimum non-cancelable rental commitments at March 31, 2015 under these land use agreements are as follows:
		Land Use
		Commitments
		(millions)
	2015 (Remaining)	$	4
	2016	5
	2017	5
	2018	5
	2019	5
	2020	5
	Thereafter	139
	Total minimum land use payments	$	168
Schedule of the purpose and amounts of contemplated letters of credit	The purpose and amounts of letters of credit outstanding as of March 31, 2015 are as follows:
	LOC Facility Purpose	Amount		Outstanding Dates
		(millions)
	PPA security	$	25	September 2011 - Maturity
	Large generator interconnection agreement obligations	8		September 2011 - Maturity
	O&M reserve	10		December 2013 - Maturity
	Debt service reserve	35		August 2014 - Maturity
	Total	$	78

Summary_of_Significant_Account3

Summary of Significant Accounting and Reporting Policies (Details) (USD $)	1 Months Ended			3 Months Ended			1 Months Ended
In Millions, unless otherwise specified	Feb. 28, 2015	Dec. 31, 2014		Mar. 31, 2015	Mar. 31, 2014		Apr. 30, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Restricted cash		$80	[1]	$23
Restricted cash, noncurrent		3		5
Distribution to unitholders	4			18	36	[1]
Period to receive economic benefits		10 years
Property, plant and equipment, net		2,579	[1]	2,495
Deferral related to differential membership interests—VIE		248	[1]	246
Understatement of other comprehensive loss				-17	-11	[1]
Overstatement of deferred tax assets		127	[1]	130
Overstatement of deferred tax liabilities		56	[1]	55
Understatement of equity		884	[1]	612
CITC Proceeds Received by Genesis Due to NEECH [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Restricted cash		22	[1]
Variable Interest Entity
Revenues from External Customers and Long-Lived Assets [Line Items]
Restricted cash		55	[1]	19
Property, plant and equipment, net		408	[1]	406
Palo Duro [Member] | Variable Interest Entity
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net		491		447
Deferral related to differential membership interests—VIE		326		287
Subsidiary of NEER [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Proceeds from sale of membership interests		248
Subsequent Event [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Distribution to unitholders declared							4
Restatement Adjustment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Understatement of other comprehensive loss					1
Overstatement of deferred tax assets					1
Overstatement of deferred tax liabilities					5
Understatement of equity					$4
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Summary_of_Significant_Account4

Summary of Significant Accounting and Reporting Policies - Noncontrolling Interest (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Partners' Capital Attributable to Noncontrolling Interest [Roll Forward]
Noncontrolling interest at beginning of period			$160
Net assets of Palo Duro and Shafter as of December 31, 2014			173
Noncontrolling interest, beginning of period	333	[1]
Payment to NEE for Palo Duro and Shafter acquisitions	-234
Cash distributions	-14
Noncash distributions	-4
Noncash contributions - Palo Duro and Shafter between January 1, 2015 and respective acquisition dates	45
Noncash allocation to NEP of Palo Duro and Shafter equity as of the respective acquisition dates	-44
Comprehensive loss attributable to noncontrolling interest, including pre-acquisition net income of Palo Duro and Shafter	-7
Noncontrolling interest, ending of period	$75
NEP OpCo [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interest, percent ownership	20.10%
Noncontrolling interest, percent ownership by noncontrolling owners	79.90%
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Details) (USD $)	3 Months Ended			1 Months Ended	12 Months Ended			1 Months Ended	0 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014		Oct. 31, 2014	Dec. 31, 2014		Dec. 31, 2013	Jan. 31, 2015	Apr. 28, 2015
								MW
Business Acquisition [Line Items]
Assets	$2,928				$3,229	[1]
Liabilities	2,316				2,345	[1]
Pre-tax loss	-10	-11	[1]
Shafter Solar, LLC [Member]
Business Acquisition [Line Items]
Consideration transferred				64
Palo Duro and Shafter [Member]
Business Acquisition [Line Items]
Liabilities assumed in consideration transfer	328
Assets							6
Liabilities							1
Pre-tax loss					1		1
Revenues					3
Hansford and Ochiltree Countries, Texas [Member] | Palo Duro [Member]
Business Acquisition [Line Items]
Renewable energy assets, power capacity (megawatts)								250
Consideration transferred								228
Liabilities assumed in consideration transfer								248
Shafter, California [Member] | Shafter Solar, LLC [Member]
Business Acquisition [Line Items]
Renewable energy assets, power capacity (megawatts)				20
Subsidiaries [Member]
Business Acquisition [Line Items]
Amount borrowed under existing credit facility	122
Subsequent Event [Member] | North Dakota, Oklahoma, Washington and Oregon [Member] | Ashtabula III, Baldwin, Mammoth Plains and Stateline [Member]
Business Acquisition [Line Items]
Renewable energy assets, power capacity (megawatts)									664
Consideration transferred									412
Liabilities assumed in consideration transfer									$269
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Acquisitions_Details

Acquisitions (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2015
In Millions, unless otherwise specified
Liabilities:
Net assets acquired	$173
Palo Duro and Shafter [Member]
Assets:
Current assets		70
Property, plant and equipment - net		455
Non-current assets		21
Total assets		546
Liabilities:
Deferral related to differential membership interests - VIE		248
Other current and non-current liabilities		80
Total liabilities		328
Net assets acquired		$218

Income_Taxes_Additional_Disclo

Income Taxes - Additional Disclosures (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Noncontrolling Interest [Line Items]
Effective tax rate	10.00%	45.00%
NEP OpCo [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interest, percent ownership	20.10%
Noncontrolling interest, percent ownership by noncontrolling owners	79.90%

Fair_Value_Measurements_Assets

Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of foreign currency contracts	$1,000,000
Recurring Basis [Member]
Assets:
Cash equivalents	13,000,000	86,000,000
Restricted cash	23,000,000	80,000,000
Interest rate swaps	0	2,000,000
Total assets	36,000,000	168,000,000
Liabilities:
Interest rate swaps	16,000,000	10,000,000
Total liabilities	16,000,000	10,000,000
Recurring Basis [Member] | Level 1 [Member]
Assets:
Cash equivalents	13,000,000	86,000,000
Restricted cash	23,000,000	80,000,000
Interest rate swaps	0	0
Total assets	36,000,000	166,000,000
Liabilities:
Interest rate swaps	0	0
Total liabilities	0	0
Recurring Basis [Member] | Level 2 [Member]
Assets:
Cash equivalents	0	0
Restricted cash	0	0
Interest rate swaps	0	2,000,000
Total assets	0	2,000,000
Liabilities:
Interest rate swaps	16,000,000	10,000,000
Total liabilities	$16,000,000	$10,000,000

Fair_Value_Measurements_Carryi

Fair Value Measurements - Carrying Value and Fair Value of Other Financial Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	$20	$20
Long-term debt, including current maturities	1,880	1,836
Level 2 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	20	20
Long-term debt, including current maturities	$1,960	$1,902

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activity - Additional Disclosures (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Interest Rate Swap [Member]
Derivative [Line Items]
Net losses included in AOCI expected to be reclassified into interest expense within the next 12 months	$5
Notional amount	321	339
Foreign Currency Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	32
Gain related to foreign currency contract	$1

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activity - Fair Value of Derivative Instruments Included in Balance Sheets (Details) (Cash Flow Hedges [Member], Designated as Hedging Instrument [Member], Interest Rate Swap [Member], USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative instruments, assets		$5
Fair value of derivative instruments, liabilities	1
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative instruments, assets		3
Fair value of derivative instruments, liabilities	6	3
Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative instruments, liabilities	$11	$7

Derivative_Instruments_and_Hed4

Derivative Instruments and Hedging Activity - Gains (Losses) Related to Cash Flow Hedges (Details) (Interest Rate Swap [Member], Designated as Hedging Instrument [Member], Cash Flow Hedges [Member], USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Losses recognized in other comprehensive income	($10)	($5)
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Losses reclassified from AOCI to net income	$1	$1

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014		Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period	($43)	($15)
Other comprehensive loss before reclassification	-18	-12
Amounts reclassified from AOCI to interest expense	1	1
Total other comprehensive loss, net of tax	-17	-11	[1]
Balance, end of period	-60	-26
AOCI attributable to noncontrolling interest	-54
AOCI attributable to NextEra Energy Partners	-6			-3	[1]
Net Unrealized Gains (Losses) on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period	-4	10
Other comprehensive loss before reclassification	-8	-5
Amounts reclassified from AOCI to interest expense	1	1
Total other comprehensive loss, net of tax	-7	-4
Balance, end of period	-11	6
AOCI attributable to noncontrolling interest	-10
AOCI attributable to NextEra Energy Partners	-1
Net Unrealized Gains (Losses) on Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period	-39	-25
Other comprehensive loss before reclassification	-10	-7
Amounts reclassified from AOCI to interest expense	0	0
Total other comprehensive loss, net of tax	-10	-7
Balance, end of period	-49	-32
AOCI attributable to noncontrolling interest	-44
AOCI attributable to NextEra Energy Partners	($5)
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	3 Months Ended	12 Months Ended		3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014		Mar. 31, 2014
Related Party Transaction [Line Items]
Due from related parties	$51,000,000	$212,000,000	[1]
Due to related party, noncurrent	16,000,000	16,000,000	[1]
Subsidiaries of NEER [Member] | Operations, Maintenance,and Administrative Services [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	1,000,000
Subsidiaries of NEER [Member] | Operations, Maintenance,and Administrative Services, as well as Payroll and Other Payments [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	22,000,000	7,000,000
NextEra Energy, Inc. [Member] | Management Services Agreement [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	1,000,000			0
NEER [Member]
Related Party Transaction [Line Items]
Due to related party, noncurrent	16,000,000
NEER [Member] | Cash Sweep and Credit Support Agreement [Member]
Related Party Transaction [Line Items]
Interest expense, less than $1 million	1,000,000
Due from related parties	51,000,000	211,000,000
Palo Duro [Member]
Related Party Transaction [Line Items]
Related note receivable, noncurrent	16,000,000
NEP OpCo [Member] | NextEra Energy, Inc. [Member] | Management Services Agreement [Member]
Related Party Transaction [Line Items]
Management fee, percent of EBITDA	1.00%
Annual management fee	4,000,000
Annual management fee, quarterly installments	1,000,000
Management fee, additional payment threshold, minimum EBITDA	4,000,000
NextEra Energy Capital Holdings [Member] | Guarantees and Letters of Credit [Member]
Related Party Transaction [Line Items]
Total amount of letters of credit	$485,000,000
[1]	Prior-period financial information has been retrospectively adjusted as discussed in Note 2.

Commitments_and_Contingencies_1

Commitments and Contingencies - Commitments (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating Leased Assets [Line Items]
Lease expense	$3	$3
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015 (Remaining)	4
2016	5
2017	5
2018	5
2019	5
2020	5
Thereafter	139
Total minimum land use payments	168
Genesis [Member] | Surety Bond [Member]
Operating Leased Assets [Line Items]
Surety bond	23
EPC Contracts [Member]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Purchases under contracts	39
Remaining commitment	$4

Commitments_and_Contingencies_2

Commitments and Contingencies - Letters of Credit (Details) (Genesis [Member], Standby Letters of Credit [Member], USD $)	Mar. 31, 2015
In Millions, unless otherwise specified
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity	$83
Credit facility, amount outstanding	78
PPA Security [Member]
Line of Credit Facility [Line Items]
Credit facility, amount outstanding	25
Large Generator Interconnection Agreement [Member]
Line of Credit Facility [Line Items]
Credit facility, amount outstanding	8
Operations & Maintenance Reserve [Member]
Line of Credit Facility [Line Items]
Credit facility, amount outstanding	10
Debt service reserve [Member]
Line of Credit Facility [Line Items]
Credit facility, amount outstanding	$35