Debt (Long-term Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt, net of current maturities	$ 622	$ 638
Credit Agreement [Member]
Debt Instrument [Line Items]
Deferred financing costs	(4)	(4)
Term Loan [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Term Loan	650	650
Current maturities	$ (24)	$ (8)