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Derivative Assets And Liabilities Table - Partnership's Derivative Assets and Liabilities Amount of Gain (Loss) Recognized (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Amount of Gain/(Loss) Recognized in Income on Derivatives		$ 10	$ 157	$ 114	$ 154
Gain (loss) on interest rate derivative	[1]	0	(6)	0	6
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ 10	$ 163	$ 114	$ 148
[1] This interest rate derivative was terminated by USAC in August 2024.

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

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- Definition

Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

+ References

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