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	3,688	0	82	3,606	0
Cash distributions paid to common unitholders	(2,948)	0	0	(2,948)	0
Cash payments made in connection with distribution equivalent rights	(23)	0	0	(23)	0
Cash distributions paid to noncontrolling interests	(115)	0	(115)	0	0
Cash contributions from noncontrolling interests	23	0	23	0	0
Amortization of fair value of equity-based awards	115	0	0	115	0
Repurchase and cancellation of common units under 2019 Buyback Program	(89)	0	0	(89)	0
Cash flow hedges	(7)	(7)	0	0	0
Other, net	(38)	0	0	(38)	0
Balance at Sep. 30, 2021	25,984	(172)	1,063	26,390	(1,297)
Balance at Jun. 30, 2021	25,847	(199)	1,074	26,269	(1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,181	0	28	1,153	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	(44)	0	(44)	0	0
Cash contributions from noncontrolling interests	5	0	5	0	0
Amortization of fair value of equity-based awards	36	0	0	36	0
Repurchase and cancellation of common units under 2019 Buyback Program	(75)	0	0	(75)	0
Cash flow hedges	27	27	0	0	0
Other, net	(2)	0	0	(2)	0
Balance at Sep. 30, 2021	25,984	(172)	1,063	26,390	(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	4,160	0	93	4,067	0
Cash distributions paid to common unitholders	(3,061)	0	0	(3,061)	0
Cash payments made in connection with distribution equivalent rights	(26)	0	0	(26)	0
Cash distributions paid to noncontrolling interests	(115)	0	(115)	0	0
Cash contributions from noncontrolling interests	4	0	4	0	0
Amortization of fair value of equity-based awards	118	0	0	118	0
Repurchase and cancellation of common units under 2019 Buyback Program	(107)	0	0	(107)	0
Cash flow hedges	87	87	0	0	0
Other, net	(59)	0	0	(59)	0
Balance at Sep. 30, 2022	27,440	373	1,092	27,272	(1,297)
Balance at Jun. 30, 2022	26,977	177	1,094	27,003	(1,297)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,391	0	31	1,360	0
Cash distributions paid to common unitholders	(1,035)	0	0	(1,035)	0
Cash payments made in connection with distribution equivalent rights	(9)	0	0	(9)	0
Cash distributions paid to noncontrolling interests	(33)	0	(33)	0	0
Amortization of fair value of equity-based awards	39	0	0	39	0
Repurchase and cancellation of common units under 2019 Buyback Program	(72)	0	0	(72)	0
Cash flow hedges	196	196	0	0	0
Other, net	(14)	0	0	(14)	0
Balance at Sep. 30, 2022	$ 27,440	$ 373	$ 1,092	$ 27,272	$ (1,297)