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Fair Value of Financial Instruments - Estimated Carrying Amounts and Fair Value of Financial Instruments Not Carried at Fair Value (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Total long-term debt, including current portion $ 8,098 $ 8,040
Carrying Amount | Convertible Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Total long-term debt, including current portion 575 518
Carrying Amount | Other long-term debt, including current portion    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Total long-term debt, including current portion 7,523 7,522
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Total long-term debt, including current portion 7,084 8,327
Fair Value | Convertible Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Total long-term debt, including current portion 611 677
Fair Value | Other long-term debt, including current portion    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Total long-term debt, including current portion $ 6,473 $ 7,650