Derivatives and Risk Management Activities - Preferred Distribution Rate (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Derivatives and Risk Management Activities
Gain (loss) recognized			$ (147)	$ 9
Preferred Distribution Rate Reset Option | Derivatives Not Designated as a Hedge | Other long-term liabilities and deferred credits
Derivatives and Risk Management Activities
Derivative liability	$ 147		147
Preferred Distribution Rate Reset Option | Derivatives Not Designated as a Hedge | Other long-term liabilities and deferred credits | Maximum
Derivatives and Risk Management Activities
Derivative liability					$ 1
Preferred Distribution Rate Reset Option | Derivatives Not Designated as a Hedge | Other expense, net
Derivatives and Risk Management Activities
Gain (loss) recognized	$ (103)	$ 77	$ (147)	$ 9