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Debt - Convertible Senior Notes due in 2024 and 2026 Narrative (Details) - USD ($)			12 Months Ended
	Oct. 09, 2019	Sep. 09, 2019	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Net proceeds from issuance			$ 0	$ 0	$ 553,000,000
Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount			1,672,000,000
0.75% convertible senior notes due 2024 | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 73,000,000	$ 600,000,000	$ 608,000,000
Net proceeds from issuance	72,000,000	592,000,000
Payments for Derivative Instrument, Financing Activities	$ 9,000,000	75,000,000
Debt instrument, interest rate stated percentage	0.75%		0.75%
1.375% convertible senior notes due 2026 | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount		500,000,000	$ 499,000,000
Net proceeds from issuance		494,000,000
Payments for Derivative Instrument, Financing Activities		$ 75,000,000
Debt instrument, interest rate stated percentage			1.375%

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