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, 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
Balance at Dec. 31, 2022	3,108,115			2,969,604		136,406		3,120,107				3,092,012			28,095
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	1,048,007			998,532		25,791		1,050,681				1,045,812			4,869
Distributions to noncontrolling interest owners			(7,641)				(7,641)				(7,641)					(7,641)
Distributions to WES Operating unitholders	(978,430)			(955,834)				(1,142,217)				(1,142,217)
Contributions of equity-based compensation from related parties										31,424				31,424
Balance at Dec. 31, 2023	3,029,130			2,894,231		131,706		3,052,354				3,027,031			25,323
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	1,611,252			1,536,967		37,681		1,612,883				1,607,358			5,525
Distributions to noncontrolling interest owners			$ (4,372)				$ (4,372)				$ (4,372)					$ (4,372)
Distributions to WES Operating unitholders	(1,246,069)			(1,217,075)				(1,272,152)				(1,272,152)
Contributions of equity-based compensation from related parties										$ 37,413				$ 37,413
Balance at Dec. 31, 2024	$ 3,375,170			$ 3,224,802		$ 139,565		$ 3,426,126				$ 3,399,650			$ 26,476