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Debt - Convertible Senior Notes due in 2023 Narrative (Details) - USD ($)		12 Months Ended
	Jul. 03, 2018	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
1.50% convertible senior notes due 2023 | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 374,000,000
Net proceeds from issuance	364,000,000
Net proceeds used to purchase capped call confirmations	29,000,000
1.50% convertible senior notes due 2023, over-allotment option | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 49,000,000

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