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Derivative and Financial Instruments - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Derivative [Line Items] |  |  |  |  |  |
Percentage of term loans converted from floating to fixed |  |  |  |  |  | 60.00%
Proceeds from sales and redemptions of investments in debt securities classified as available for sale | $ 271 | $ 142 | $ 782 | $ 597 |  |
Derivative, net liability position, aggregate fair value | 59 |  | 59 |  | $ 70 |
Collateral already posted, aggregate fair value | 0 |  | 0 |  | $ 0 |
Interest Rate Swap |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Unrealized gain (loss) | (6) | $ (63) | 27 | $ (50) |  |
In event of downgrade below investment grade |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Additional collateral, aggregate fair value | $ 25 |  | $ 25 |  |  |
Maximum |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Investments and long-term receivables, remaining maturity |  |  | 13 years |  |  |
Minimum |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Investments and long-term receivables, remaining maturity |  |  | 1 year |  |  |
Accounts Receivable | Maximum |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Credit derivative, term |  |  | 30 days |  |  |

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