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Fair Value of Financial Instruments - Estimated Carrying Amounts and Fair Value of Long-term Debt (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | $ 10,844 | $ 10,940
Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | 10,705 | 10,794
Carrying Amount | Convertible Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | 483 | 575
Carrying Amount | Other long-term debt, including current portion |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | 10,222 | 10,219
Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | 10,692 | 10,574
Fair Value | Convertible Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | 798 | 739
Fair Value | Other long-term debt, including current portion |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Total long-term debt, including current portion | $ 9,894 | $ 9,835

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