CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) $ in Millions	Total	Cactus II Pipeline LLC	Noncontrolling Interests	Noncontrolling Interests Cactus II Pipeline LLC	Limited Partners Class A Shares Partners’ Capital
Balance, beginning of period at Dec. 31, 2021	$ 14,177		$ 12,644		$ 1,533
Increase (Decrease) in Partners' Capital
Net income	1,163		995		168
Distributions (Note 11)	(1,083)		(921)		(162)
Deferred tax asset (Note 14)	5				5
Other comprehensive income/(loss) (Note 11)	(101)		(73)		(28)
Equity-indexed compensation expense	33		23		10
Repurchase of common units by a subsidiary (Note 11)	(74)		(76)		2
Contributions from noncontrolling interests	26		26
Cactus II Pipeline LLC transaction (Note 7)		$ 526		$ 526
Other	(34)		(30)		(4)
Balance, end of period at Dec. 31, 2022	14,638		13,114		1,524
Increase (Decrease) in Partners' Capital
Net income	1,425		1,227		198
Distributions (Note 11)	(1,330)		(1,121)		(209)
Deferred tax asset (Note 14)	(2)				(2)
Other comprehensive income/(loss) (Note 11)	118		85		33
Equity-indexed compensation expense	37		26		11
Contributions from noncontrolling interests	106		106
Other	(20)		(13)		(7)
Balance, end of period at Dec. 31, 2023	14,972		13,424		1,548
Increase (Decrease) in Partners' Capital
Net income	1,070		967		103
Distributions (Note 11)	(1,569)		(1,318)		(251)
Deferred tax asset (Note 14)	18				18
Other comprehensive income/(loss) (Note 11)	(247)		(178)		(69)
Equity-indexed compensation expense	38		26		12
Contributions from noncontrolling interests	57		57
Other	(23)		(13)		(10)
Balance, end of period at Dec. 31, 2024	$ 14,316		$ 12,965		$ 1,351