Equity and Partners' Capital - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Nov. 02, 2022
Schedule of Investments [Line Items]
Common units outstanding	384,615,227		384,070,984
General partner units outstanding	9,060,641		9,060,641
Unit repurchases, authorized amount				$ 1,250,000,000
Unit repurchases, amount	$ 7,061,000	$ 5,149,000
Unit repurchases, remaining authorized amount	$ 755,300,000
Public [Member]
Schedule of Investments [Line Items]
Unit repurchases, number of units	285,688	225,355
Unit repurchases, amount	$ 7,100,000	$ 5,100,000
WES [Member] | Public [Member]
Schedule of Investments [Line Items]
Common units outstanding	194,333,649
Limited partner's interest	49.40%
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	190,281,578
Limited partner's interest	48.30%
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%