Partners' Capital and Distributions - PAA Distributions (Details) - USD ($) $ / shares in Units, $ in Millions					1 Months Ended	12 Months Ended
	Feb. 15, 2024	Feb. 14, 2024	Jan. 08, 2024	Jan. 31, 2023	May 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Aug. 15, 2023	Nov. 15, 2022
Partners Capital and Distribution [Line Items]
Distributions paid						$ 1,330	$ 1,083	$ 729
PAA
Partners Capital and Distribution [Line Items]
Number of days after end of quarter within which distributions must be paid to unitholders (in days)						45 days
PAA | Series A Preferred Units
Partners Capital and Distribution [Line Items]
Distribution rate reset, basis spread on variable rate (as a percent)				5.85%
Quarterly distributions per unit (in dollars per unit)				$ 0.615
PAA | Series B Preferred Units
Partners Capital and Distribution [Line Items]
Distribution rate percentage						6.125%
Distribution rate per unit (in dollars per unit)						$ 61.25
Preferred unit, distribution percentage spread (as a percent)									4.11%	4.11%
Preferred unit, credit percentage spread (as a percent)									0.26121%
Cash Distribution | PAA | Series A Preferred Units
Partners Capital and Distribution [Line Items]
Preferred unit distribution amount (in dollars per unit)					$ 0.585	$ 2.34	$ 2.10	$ 2.10
Preferred unit distribution amount						$ 166	$ 149	$ 149
Cash Distribution | PAA | Series A Preferred Units | Subsequent Event
Partners Capital and Distribution [Line Items]
Preferred unit distribution amount		$ 44
Cash Distribution | PAA | Common Units
Partners Capital and Distribution [Line Items]
Distributions per common unit (in dollars per share)						$ 1.0700	$ 0.8325	$ 0.7200
Distributions paid						$ 748	$ 584	$ 517
Cash Distribution | PAA | Series B Preferred Units
Partners Capital and Distribution [Line Items]
Preferred unit distribution amount (in dollars per unit)						$ 93.43	$ 61.25	$ 61.25
Preferred unit distribution amount						$ 75	$ 49	$ 49
Cash Distribution | PAA | Series B Preferred Units | Subsequent Event
Partners Capital and Distribution [Line Items]
Preferred unit distribution amount (in dollars per unit)	$ 24.92
Preferred unit distribution amount	$ 20
Fourth Quarter Distribution | Cash Distribution | PAA | Common Units | Subsequent Event
Partners Capital and Distribution [Line Items]
Distribution per common unit declared (in dollars per unit)			$ 0.3175
Public | Cash Distribution | PAA | Common Units
Partners Capital and Distribution [Line Items]
Distributions paid						492	383	341
AAP | Cash Distribution | PAA | Common Units
Partners Capital and Distribution [Line Items]
Distributions paid						256	$ 201	$ 176
AAP | Fourth Quarter Distribution | Cash Distribution | PAA | Common Units | Subsequent Event
Partners Capital and Distribution [Line Items]
Distributions paid		$ 74
Other current liabilities | PAA | Series A Preferred Units
Partners Capital and Distribution [Line Items]
Distributions payable						44
Other current liabilities | PAA | Series B Preferred Units
Partners Capital and Distribution [Line Items]
Distributions payable						$ 10