UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED EQUITY - USD ($) $ in Millions	Total	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests in Consolidated Subsidiaries [Member]	Common Limited Partners Interests [Member]	Treasury Units [Member]
Balance at Dec. 31, 2021	$ 26,439	$ 286	$ 1,110	$ 26,340	$ (1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,330	0	34	1,296	0
Cash distributions paid to common unitholders	(1,012)	0	0	(1,012)	0
Cash payments made in connection with distribution equivalent rights	(8)	0	0	(8)	0
Cash distributions paid to noncontrolling interests	(42)	0	(42)	0	0
Cash contributions from noncontrolling interests	2	0	2	0	0
Amortization of fair value of equity-based awards	38	0	0	38	0
Cash flow hedges	(46)	(46)	0	0	0
Other, net	(44)	0	0	(44)	0
Balance at Mar. 31, 2022	26,657	240	1,104	26,610	(1,297)
Balance at Dec. 31, 2022	27,702	365	1,079	27,555	(1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,421	0	31	1,390	0
Cash distributions paid to common unitholders	(1,064)	0	0	(1,064)	0
Cash payments made in connection with distribution equivalent rights	(9)	0	0	(9)	0
Cash distributions paid to noncontrolling interests	(42)	0	(42)	0	0
Cash contributions from noncontrolling interests	4	0	4	0	0
Repurchase and cancellation of common units under 2019 Buyback Program	(17)	0	0	(17)	0
Amortization of fair value of equity-based awards	41	0	0	41	0
Cash flow hedges	(124)	(124)	0	0	0
Other, net	(53)	0	0	(53)	0
Balance at Mar. 31, 2023	$ 27,859	$ 241	$ 1,072	$ 27,843	$ (1,297)