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Debt (Long-term Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt, net of current maturities	$ 1,183	$ 606
Credit Agreement
Debt Instrument [Line Items]
Deferred financing costs	(2)	(3)
Term Loan | Credit Agreement
Debt Instrument [Line Items]
Long term debt	618	642
Current maturities	(33)	(33)
Revolving Credit Facility | Unsecured Debt | Credit Agreement
Debt Instrument [Line Items]
Long term debt	$ 600	$ 0

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