Consolidated Statements of Equity and Partners' Capital - WES Operating - USD ($) $ in Thousands	Total		Occidental [Member]	Chipeta [Member]	Common Units [Member]		Common Units [Member] Occidental [Member]	Noncontrolling Interest [Member]		Noncontrolling Interest [Member] Chipeta [Member]	WES Operating [Member]		WES Operating [Member] Occidental [Member]	WES Operating [Member] WES [Member]	WES Operating [Member] Chipeta [Member]	WES Operating [Member] Common Units [Member]		WES Operating [Member] Common Units [Member] Occidental [Member]	WES Operating [Member] Common Units [Member] WES [Member]	WES Operating [Member] Noncontrolling Interest [Member]	WES Operating [Member] Noncontrolling Interest [Member] Chipeta [Member]
Balance at Dec. 31, 2019	$ 3,345,293				$ 3,209,947			$ 149,570			$ 3,341,819					$ 3,286,620				$ 55,199
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	516,852				515,908			(10,160)			520,387					541,377				(20,990)
Distributions to noncontrolling interest owners				$ (8,644)						$ (8,644)					$ (8,644)						$ (8,644)
Distributions to WES Operating unitholders	(695,834)				(681,746)						(771,546)					(771,546)
Acquisitions from related parties	0				(3,987)			3,987			0					(3,987)				3,987
Contributions of equity-based compensation from related parties			$ 14,604				$ 14,604						$ 14,604					$ 14,604
Unit exchange with Occidental	(261,878)	[1]			(256,640)	[1]		(5,238)	[1]		(261,878)	[2]				(261,878)	[2]
Net contributions from (distributions to) related parties	24,466	[3]			4,466	[3]		20,000	[3]		24,466	[4]				24,466	[4]
Other	465				465						1,543					1,543
Balance at Dec. 31, 2020	2,895,212				2,778,339			134,081			2,860,751					2,831,199				29,552
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	943,999				896,477			27,707			946,929					937,987				8,942
Distributions to noncontrolling interest owners				(9,117)						(9,117)					(9,117)						(9,117)
Distributions to WES Operating unitholders	(533,758)				(522,269)						(749,018)					(749,018)
Contributions of equity-based compensation from related parties			10,087				10,087						10,087	$ 24,501				10,087	$ 24,501
Net contributions from (distributions to) related parties	8,533				8,533						8,533					8,533
Other	(4,336)				(4,336)
Balance at Dec. 31, 2021	3,095,760				2,966,955			137,687			3,092,666					3,063,289				29,377
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	1,251,456				1,189,562			34,353			1,254,074					1,244,620				9,454
Distributions to noncontrolling interest owners				$ (10,736)						$ (10,736)					$ (10,736)						$ (10,736)
Distributions to WES Operating unitholders	(735,755)				(719,201)						(1,244,533)					(1,244,533)
Contributions of equity-based compensation from related parties			$ 2,277				$ 2,277						$ 2,277	$ 24,936				$ 2,277	$ 24,936
Net contributions from (distributions to) related parties	1,423				1,423						1,423					1,423
Other	(9,328)				(9,328)
Balance at Dec. 31, 2022	$ 3,108,115				$ 2,969,604			$ 136,406			$ 3,120,107					$ 3,092,012				$ 28,095

[1] See Note 6.

[2] See Note 5.

[3] Includes a one-time cash contribution Occidental made to WES Operating in January 2020 for anticipated transition costs required to establish stand-alone human resources and information technology functions.

[4] Includes a one-time cash contribution Occidental made to WES Operating in January 2020 for anticipated transition costs required to establish stand-alone human resources and information technology functions.