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Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions					3 Months Ended		9 Months Ended
	Nov. 14, 2022	Aug. 12, 2022	May 13, 2022	Feb. 14, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Partners Capital and Distribution
Distributions paid					$ 274	$ 182	$ 775	$ 548
Common Units | Cash Distribution
Partners Capital and Distribution
Distributions paid		$ 152	$ 153	$ 127
Distributions per common unit, paid (usd per unit)		$ 0.2175	$ 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		$ 99	$ 100	$ 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		$ 53	$ 53	$ 43
AAP | Common Units | Forecast | Cash Distribution
Partners Capital and Distribution
Distributions paid	$ 52

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Per unit of ownership amount of cash distributions paid to unit-holder of a limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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Total distributions to each class of partners (i.e., general, limited and preferred partners).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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