Derivatives and Risk Management Activities - Preferred Distribution Rate (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jan. 31, 2023	Dec. 31, 2022
Derivatives and Risk Management Activities
Gain/(loss) recognized		$ 58	$ (147)
Preferred Distribution Rate Reset Option | Derivatives Not Designated as a Hedge
Derivatives and Risk Management Activities
Derivative liability				$ 131	$ 189
Derivative liability [Extensible Enumeration]					Other long-term liabilities and deferred credits
Preferred Distribution Rate Reset Option | Derivatives Not Designated as a Hedge | Other income/(expense), net
Derivatives and Risk Management Activities
Gain/(loss) recognized	$ (103)	$ 58	$ (147)