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Derivative and Financial Instruments - Financial Instruments, Debt Securities Carried at Fair Value (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Cash and cash equivalents | $ 6,497 | $ 5,607
Within one year | Carrying Amount |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cash and cash equivalents |  | 2
Short-term investments | 453 | 495
Within one year | Carrying Amount | Corporate Bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Short-term investments | 308 | 338
Within one year | Carrying Amount | Commercial Paper |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cash and cash equivalents |  | 2
Short-term investments | 72 | 77
Within one year | Carrying Amount | U.S. Government Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Short-term investments | 46 | 43
Within one year | Carrying Amount | Foreign Government Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Short-term investments | 9 | 4
Within one year | Carrying Amount | Asset-backed Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Short-term investments | 18 | 33
One year through eight years | Carrying Amount |  |
Debt Securities, Available-for-sale [Line Items] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | 1,148 | 1,054
One year through eight years | Carrying Amount | Corporate Bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | 651 | 612
One year through eight years | Carrying Amount | U.S. Government Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | 224 | 218
One year through eight years | Carrying Amount | U.S. Government Agency Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | 1 | 7
One year through eight years | Carrying Amount | Foreign Government Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | 9 | 12
One year through eight years | Carrying Amount | Asset-backed Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | $ 263 | $ 205

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