Equity and Partners' Capital - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Nov. 02, 2022
Schedule of Investments [Line Items]
Common units outstanding	380,490,138		379,519,983
General partner units outstanding	9,060,641		9,060,641
Unit repurchases, authorized amount				$ 1,250,000,000
Unit repurchases, amount	$ 0	$ 7,061,000
Unit repurchases, remaining authorized amount	$ 627,800,000
Public [Member]
Schedule of Investments [Line Items]
Unit repurchases, number of units		285,688
WES [Member] | Public [Member]
Schedule of Investments [Line Items]
Common units outstanding	195,308,560
Limited partner's interest	50.10%
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	47.60%
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%