Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	May 13, 2022	Feb. 14, 2022	Mar. 31, 2022	Mar. 31, 2021
Partners Capital and Distribution
Distributions paid			$ 235	$ 185
Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 127
Distributions per common unit, paid (usd per unit)		$ 0.1800
Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 153
Distributions per common unit, paid (usd per unit)	$ 0.2175
Public | Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 84
Public | Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 100
AAP | Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 43
AAP | Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 53