Equity and Partners' Capital - Additional Information (Details) - USD ($)		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Nov. 02, 2022
Schedule of Investments [Line Items]
Common units outstanding		379,516,369		384,070,984
General partner units outstanding		9,060,641		9,060,641
Unit repurchases, authorized amount					$ 1,250,000,000
Unit repurchases, amount	[1]	$ 134,602,000	$ 447,075,000
Unit repurchases, remaining authorized amount		$ 627,800,000
Public [Member]
Schedule of Investments [Line Items]
Unit repurchases, number of units		5,387,322	17,982,357
Unit repurchases, amount		$ 134,600,000	$ 447,100,000
Occidental [Member]
Schedule of Investments [Line Items]
Unit repurchases, number of units		5,100,000	10,000,000
WES [Member] | Public [Member]
Schedule of Investments [Line Items]
Common units outstanding		194,334,791
Limited partner's interest		50.00%
WES [Member] | WES Operating [Member]
Schedule of Investments [Line Items]
Limited partner's interest		98.00%
Occidental [Member] | WES [Member]
Schedule of Investments [Line Items]
Common units outstanding		185,181,578
Limited partner's interest		47.70%
General partner units outstanding		9,060,641
General partner's interest		2.30%
Occidental [Member] | WES Operating [Member]
Schedule of Investments [Line Items]
Limited partner's interest		2.00%

[1] Includes related-party amounts. See Note 6.