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v3.25.1

Financial Instruments - Information on Available-for-sale Investments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | $ 690 |  | $ 536
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | 690 |  | 536
Publicly traded equity securities, fair value | 1,033 |  | 920
Total debt and publicly traded equity securities, fair value | 1,723 |  | 1,456
Unrealized net gains | 115 | $ 143 |
Commercial paper |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 599 |  | 348
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | 599 |  | 348
U.S. government and agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 91 |  | 188
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | $ 91 |  | $ 188

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