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Fair Value of Financial Instruments - Estimated Carrying Amounts and Fair Value of Long-term Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Liabilities    
Long-term debt $ 10,892 $ 10,940
Carrying Amount    
Liabilities    
Long-term debt 10,880 10,794
Carrying Amount | Convertible Senior Notes    
Liabilities    
Long-term debt 232 575
Carrying Amount | Other Debt Obligations    
Liabilities    
Long-term debt 10,648 10,219
Fair Value    
Liabilities    
Long-term debt 10,761 10,574
Fair Value | Convertible Senior Notes    
Liabilities    
Long-term debt 509 739
Fair Value | Other Debt Obligations    
Liabilities    
Long-term debt $ 10,252 $ 9,835