Derivatives - Derivative Instruments and their Impact on Financial Condition (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Assets	Assets
Derivatives Designated as Hedging Instruments
Derivative [Line Items]
Total derivative assets	$ 21	$ 18
Derivatives Designated as Hedging Instruments | Interest Rate Swaps
Derivative [Line Items]
Total derivative assets	21	18
Derivatives Designated as Hedging Instruments | Interest Rate Swaps | Other current assets
Derivative [Line Items]
Interest rate swaps, assets	11	7
Derivatives Designated as Hedging Instruments | Interest Rate Swaps | Other non-current assets
Derivative [Line Items]
Interest rate swaps, assets	$ 10	$ 11