Equity and Partners' Capital - Additional Information (Details) - USD ($)		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Nov. 02, 2022
Schedule of Investments [Line Items]
Common units outstanding		380,555,427		379,519,983
General partner units outstanding		9,060,641		9,060,641
Unit repurchases, authorized amount					$ 1,250,000,000
Unit repurchases, amount	[1]	$ 0	$ 134,602,000
Unit repurchases, remaining authorized amount		$ 627,800,000
Public [Member]
Schedule of Investments [Line Items]
Unit repurchases, number of units		0	5,387,322
WES [Member] | Public [Member]
Schedule of Investments [Line Items]
Common units outstanding		214,873,849
Limited partner's interest		55.20%
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		165,681,578
Limited partner's interest		42.50%
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.