Derivatives - Derivative Instruments and their Impact on Financial Condition (Details) - Derivatives Designated as Hedging Instruments - Interest Rate Swaps - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Total derivative assets	$ 3	$ 0
Total derivative liabilities	1	31
Other current assets
Derivative [Line Items]
Interest rate swaps, assets	1	0
Other non-current assets
Derivative [Line Items]
Interest rate swaps, assets	2	0
Other current liabilities
Derivative [Line Items]
Interest rate swaps, liability	1	10
Other non-current liabilities
Derivative [Line Items]
Interest rate swaps, liability	$ 0	$ 21