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Debt - Schedule of Convertible Senior Notes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Debt Instrument [Line Items]
Interest Expense	$ 9,000,000	$ 8,000,000
Convertible senior notes
Debt Instrument [Line Items]
Aggregate Principal Amount	1,672,000,000
Unamortized Debt Issuance Costs	11,000,000		$ 12,000,000
Fair Value	1,860,000,000		1,664,000,000
Contractual Coupon Interest	7,000,000	7,000,000
Amortization of Debt Issuance Costs	1,000,000
Interest Expense	8,000,000	7,000,000
Convertible senior notes | 2026 Notes
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 499,000,000
Stated Interest Rate	1.375%
Effective Interest Rate	1.57%
Unamortized Debt Issuance Costs	$ 4,000,000		4,000,000
Fair Value	590,000,000		504,000,000
Contractual Coupon Interest	2,000,000	2,000,000
Amortization of Debt Issuance Costs	0
Interest Expense	2,000,000	2,000,000
Convertible senior notes | 2.75% convertible senior notes due 2025
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 565,000,000
Stated Interest Rate	2.75%
Effective Interest Rate	3.20%
Unamortized Debt Issuance Costs	$ 5,000,000		5,000,000
Fair Value	571,000,000		531,000,000
Contractual Coupon Interest	4,000,000	4,000,000
Amortization of Debt Issuance Costs	0
Interest Expense	4,000,000	4,000,000
Convertible senior notes | 0.75% convertible senior notes due 2024
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 608,000,000
Stated Interest Rate	0.75%
Effective Interest Rate	1.02%
Unamortized Debt Issuance Costs	$ 2,000,000		3,000,000
Fair Value	699,000,000		$ 629,000,000
Contractual Coupon Interest	1,000,000	1,000,000
Amortization of Debt Issuance Costs	1,000,000
Interest Expense	$ 2,000,000	$ 1,000,000

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