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Debt (Long-term Debt Outstanding) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt principal	$ 3,099	$ 3,099
Unamortized debt discount	(3)	(3)
Unamortized debt issuance costs	(35)	(37)
Long-term debt	$ 3,061	3,059
4.125% Senior Notes due 2029 | Senior Notes
Debt Instrument [Line Items]
Interest Rate	4.125%
Long-term debt principal	$ 1,100	1,100
4.375% Senior Notes due 2031 | Senior Notes
Debt Instrument [Line Items]
Interest Rate	4.375%
Long-term debt principal	$ 1,000	1,000
4.300% Senior Secured Notes due 2032 | Senior Notes
Debt Instrument [Line Items]
Interest Rate	4.30%
Long-term debt principal	$ 600	600
Variable rate Term Loan Facility due 2028
Debt Instrument [Line Items]
Long-term debt principal	399	$ 399
Variable rate Term Loan Facility due 2028 | LIBOR
Debt Instrument [Line Items]
Long-term debt principal	$ 399
Basis spread on variable rate	2.00%
Variable rate Term Loan Facility due 2028 | LIBOR | Minimum
Debt Instrument [Line Items]
Variable rate	0.50%

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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