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Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended		6 Months Ended
	Aug. 14, 2025	May 15, 2025	Feb. 14, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Partners Capital and Distribution
Distributions				$ 418	$ 383	$ 874	$ 770
Cash Distribution | Common Units
Partners Capital and Distribution
Distributions		$ 267	$ 267
Distribution per common unit (usd per unit)		$ 0.38	$ 0.38
Cash Distribution | Common Units | Forecast
Partners Capital and Distribution
Distributions	$ 267
Distribution per common unit (usd per unit)	$ 0.38
Public | Cash Distribution | Common Units
Partners Capital and Distribution
Distributions		$ 179	$ 179
Public | Cash Distribution | Common Units | Forecast
Partners Capital and Distribution
Distributions	$ 179
AAP | Cash Distribution | Common Units
Partners Capital and Distribution
Distributions		$ 88	$ 88
AAP | Cash Distribution | Common Units | Forecast
Partners Capital and Distribution
Distributions	$ 88

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- Definition

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
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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- Definition

Total distributions to each class of partners (i.e., general, limited and preferred partners).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

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-Section S99
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-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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