$ 8

$ 0.615

$ 0.615

$ 19.84

$ 21.02

$ 20.50

Partners' Capital and Distributions - Preferred Unit Distributions (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026
Series B Preferred Units
Partners' Capital and Distributions [Line Items]
Amount accrued to distributions payable		$ 8
Cash Distribution \| Series A Preferred Units
Partners' Capital and Distributions [Line Items]
Cash Distribution		$ 36	$ 36
Distribution per unit (usd per unit)		$ 0.615	$ 0.615
Cash Distribution \| Series A Preferred Units \| Subsequent Event
Partners' Capital and Distributions [Line Items]
Cash Distribution	$ 36
Distribution per unit (usd per unit)	$ 0.615
Cash Distribution \| Series B Preferred Units
Partners' Capital and Distributions [Line Items]
Cash Distribution		$ 16	$ 17
Distribution per unit (usd per unit)		$ 19.84	$ 21.02
Cash Distribution \| Series B Preferred Units \| Subsequent Event
Partners' Capital and Distributions [Line Items]
Cash Distribution	$ 16
Distribution per unit (usd per unit)	$ 20.50