Debt and Other Financing - Schedule of Outstanding Principal and Carrying Value (Details) - USD ($)	Sep. 30, 2023	May 31, 2023	Dec. 31, 2022
Debt Instrument
Long-term debt, total	$ 3,207,000,000		$ 3,137,000,000
Short-term debt	0		0
Convertible Debt | 2024 Notes
Debt Instrument
Principal Amount	117,000,000		200,000,000
Unamortized Debt Discount	0		(1,000,000)
Long-term debt, total	117,000,000		199,000,000
Convertible Debt | 2025 Notes
Debt Instrument
Principal Amount	754,000,000		1,289,000,000
Unamortized Debt Discount	(3,000,000)		(8,000,000)
Long-term debt, total	751,000,000		1,281,000,000
Convertible Debt | 2026 Notes
Debt Instrument
Principal Amount	949,000,000		949,000,000
Unamortized Debt Discount	(6,000,000)		(7,000,000)
Long-term debt, total	943,000,000		942,000,000
Convertible Debt | 2027 Notes
Debt Instrument
Principal Amount	690,000,000		690,000,000
Unamortized Debt Discount	(11,000,000)		(12,000,000)
Long-term debt, total	679,000,000		678,000,000
Convertible Debt | 2028 Notes
Debt Instrument
Principal Amount	690,000,000	$ 690,000,000	0
Unamortized Debt Discount	(11,000,000)		0
Long-term debt, total	679,000,000		0
Convertible Debt | 2025 Accreting Notes
Debt Instrument
Principal Amount	38,000,000		37,000,000
Unamortized Debt Discount	0		0
Long-term debt, total	38,000,000		37,000,000
Revolving Credit Facility
Debt Instrument
Long-term debt, total	$ 0		$ 0