Fair Value of Financial Instruments - Fair Value Hierarchy for Long-term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	$ 16,033	$ 10,761
Level 2 | Convertible Senior Notes
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	0	509
Level 2 | Other long-term debt, including current portion
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	16,033	10,252
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	372	0
Level 3 | Convertible Senior Notes
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	0	0
Level 3 | Other long-term debt, including current portion
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	$ 372	$ 0