Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended		6 Months Ended
	Aug. 12, 2022	May 13, 2022	Feb. 14, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Partners Capital and Distribution
Distributions paid				$ 264	$ 179	$ 500	$ 365
Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 153	$ 127
Distributions per common unit, paid (usd per unit)		$ 0.2175	$ 0.1800
Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 152
Distributions per common unit, paid (usd per unit)	$ 0.2175
Public | Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 100	$ 84
Public | Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 99
AAP | Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 53	$ 43
AAP | Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 53