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, 2020	$ 25,378	$ (165)	$ 1,073	$ 25,767	$ (1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	2,507	0	54	2,453	0
Cash distributions paid to common unitholders	(1,965)	0	0	(1,965)	0
Cash payments made in connection with distribution equivalent rights	(15)	0	0	(15)	0
Cash distributions paid to noncontrolling interests	(71)	0	(71)	0	0
Cash contributions from noncontrolling interests	18	0	18	0	0
Amortization of fair value of equity-based awards	79	0	0	79	0
Repurchase and cancellation of common units under 2019 Buyback Program	(14)	0	0	(14)	0
Cash flow hedges	(34)	(34)	0	0	0
Other, net	(36)	0	0	(36)	0
Balance at Jun. 30, 2021	25,847	(199)	1,074	26,269	(1,297)
Balance at Mar. 31, 2021	26,071	181	1,078	26,109	(1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,145	0	33	1,112	0
Cash distributions paid to common unitholders	(983)	0	0	(983)	0
Cash payments made in connection with distribution equivalent rights	(8)	0	0	(8)	0
Cash distributions paid to noncontrolling interests	(41)	0	(41)	0	0
Cash contributions from noncontrolling interests	5	0	5	0	0
Amortization of fair value of equity-based awards	41	0	0	41	0
Cash flow hedges	(380)	(380)	0	0	0
Other, net	(3)	0	(1)	(2)	0
Balance at Jun. 30, 2021	25,847	(199)	1,074	26,269	(1,297)
Balance at Dec. 31, 2021	26,439	286	1,110	26,340	(1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	2,769	0	62	2,707	0
Cash distributions paid to common unitholders	(2,026)	0	0	(2,026)	0
Cash payments made in connection with distribution equivalent rights	(17)	0	0	(17)	0
Cash distributions paid to noncontrolling interests	(82)	0	(82)	0	0
Cash contributions from noncontrolling interests	4	0	4	0	0
Amortization of fair value of equity-based awards	79	0	0	79	0
Repurchase and cancellation of common units under 2019 Buyback Program	(35)	0	0	(35)	0
Cash flow hedges	(109)	(109)	0	0	0
Other, net	(45)	0	0	(45)	0
Balance at Jun. 30, 2022	26,977	177	1,094	27,003	(1,297)
Balance at Mar. 31, 2022	26,657	240	1,104	26,610	(1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,439	0	28	1,411	0
Cash distributions paid to common unitholders	(1,014)	0	0	(1,014)	0
Cash payments made in connection with distribution equivalent rights	(9)	0	0	(9)	0
Cash distributions paid to noncontrolling interests	(40)	0	(40)	0	0
Cash contributions from noncontrolling interests	2	0	2	0	0
Amortization of fair value of equity-based awards	41	0	0	41	0
Repurchase and cancellation of common units under 2019 Buyback Program	(35)	0	0	(35)	0
Cash flow hedges	(63)	(63)	0	0	0
Other, net	(1)	0	0	(1)	0
Balance at Jun. 30, 2022	$ 26,977	$ 177	$ 1,094	$ 27,003	$ (1,297)