Consolidated Statements of Changes in Equity - USD ($) $ in Millions		Total	Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling Class B Interests [Member]		Preferred Units [Member]	Preferred Units, Amount [Member]	Capital Units [Member]	Capital Units [Member] Noncontrolling Class B Interests [Member]	[3]	Capital Units, Amount [Member]	Capital Units, Amount [Member] Cumulative Effect, Period of Adoption, Adjustment	Capital Units, Amount [Member] Noncontrolling Class B Interests [Member]	[3]	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests	Non-controlling Interests Cumulative Effect, Period of Adoption, Adjustment	Non-controlling Interests Noncontrolling Class B Interests [Member]		Redeemable Non-controlling Interests
Beginning balance, units outstanding at Dec. 31, 2018						14,000,000		56,100,000
Beginning Balance at Dec. 31, 2018		$ 5,538					$ 548				$ 1,804				$ (6)	$ 3,192
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of units, in units	[1]					9,300,000		(9,400,000)
Issuance of units - net	[1]	42					(365)				407
Acquisition of subsidiary with noncontrolling ownership interests		462														462
Related party note receivable		2														2
NET INCOME (LOSS)		(404)					17				(88)					(333)
Other comprehensive income		(4)													(2)	(2)
Related party contributions		23														23
Related party distributions		(249)														(249)
Changes in non-economic ownership interests		(12)														(12)
Other differential membership investment activity		36														36
Sale of Class B noncontrolling interest – net		1,786									(2)					1,788
Payments to Class B noncontrolling interest investors				$ (23)														$ (23)
Distributions to unitholders	[2]	(132)					(17)				(115)
Other – net		1									2					(1)
Ending balance, units outstanding at Dec. 31, 2019						4,700,000		65,500,000
Ending Balance at Dec. 31, 2019		7,066					183				2,008				(8)	4,883
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of units, in units	[1]					(4,700,000)		(10,400,000)
Issuance of units - net	[1]	360					(183)				543
Capped call settlement, including deferred taxes		33									33
Capped call transaction		(63)									(63)
Related party note receivable		2														2
NET INCOME (LOSS)		(238)					5				(55)					(188)
Other comprehensive income		2														2
Related party contributions		7														7
Related party distributions		(290)														(290)
Changes in non-economic ownership interests		(12)														(12)
Sale of differential membership interest		176									(3)					179
Other differential membership investment activity		64														64
Sale of Class B noncontrolling interest – net		746									(4)					750
Payments to Class B noncontrolling interest investors				(45)														(45)
Distributions to unitholders	[2]	(159)					(5)				(154)
Conversion option of 2020 convertible notes, including deferred taxes		57									57
Other – net		$ 1									0					1
Ending balance, units outstanding at Dec. 31, 2020		75,900,000				0		75,900,000
Ending Balance at Dec. 31, 2020		$ 7,707	$ (56)				0				2,362	$ (57)			(8)	5,353	$ 1			$ 0
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of units, in units						0		(700,000)
Issuance of units - net		56					0				56
Acquisition of subsidiary with noncontrolling ownership interests		2,494														2,494				321
Capped call transaction		(31)									(31)
Related party note receivable		2														2
NET INCOME (LOSS)		424									137					287
Other comprehensive income		2														2
Related party distributions		(424)														(424)
Changes in non-economic ownership interests		127														127
Sale of differential membership interest		48														48
Other differential membership investment activity		39														39
Sale of Class B noncontrolling interest – net		890									(3)					893
Payments to Class B noncontrolling interest investors				(80)														(80)
Distributions to unitholders	[2]	(198)									(198)
Exercise of Class B noncontrolling interest buyout right, in units								7,300,000	7,300,000
Exercise of Class B noncontrolling interest buyout right		(879)		$ (160)	[3]								$ 719					$ (879)	[3]
Other – net		$ (2)														(2)
Ending balance, units outstanding at Dec. 31, 2021		83,900,000				0		83,900,000
Ending Balance at Dec. 31, 2021		$ 10,838					$ 0				$ 2,985				$ (8)	$ 7,861				$ 321

[1] In 2020, NEP issued 4.7 million NEP common units upon the conversion of preferred units on a one-for-one basis and issued approximately 5.7 million NEP common units upon the conversion of $300 million of convertible notes (see Note 13 – Preferred Units and Note 12). NEP recognized a deferred tax asset of approximately $59 million related to the issuance of NEP common units. In 2019, NEP converted approximately 9.3 million Series A convertible preferred units into NEP common units on a one-for-one basis and recognized a deferred tax asset of approximately $39 million related to the issuance of NEP common units.

[2] Distributions per common unit were $2.6000, $2.2625 and $1.9675 for the years ended December 31, 2021, 2020 and 2019, respectively.

[3] Reflects the issuance of approximately 7.3 million NEP common units and recognition of a $105 million deferred tax asset in connection with the exercise of the Class B noncontrolling interest buyout right discussed in Note 13 - Class B Noncontrolling Interests.