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Fair Value Measurements (Details 2) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Assets and liabilities measured at fair value on a recurring basis |  |  |
DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag | Derivative liabilities | Derivative liabilities |
Unrealized gain on embedded derivative | $ 0 | $ 0 | $ (14)
Recurring basis |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Cash equivalents | 1,446 | 1,824 |
Nonqualified employee benefit trusts | 17 | 17 |
Derivative assets | 4 | 1 |
Derivative liabilities | (3) | (35) |
Recurring basis | Quoted Prices in Active Markets (Level 1) |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Cash equivalents | 1,446 | 1,824 |
Nonqualified employee benefit trusts | 17 | 17 |
Derivative assets | 0 | 0 |
Derivative liabilities | 0 | 0 |
Recurring basis | Significant Other Observable Inputs (Level 2) |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Cash equivalents | 0 | 0 |
Nonqualified employee benefit trusts | 0 | 0 |
Derivative assets | 4 | 1 |
Derivative liabilities | (3) | (35) |
Recurring basis | Significant Unobservable Inputs (Level 3) |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Cash equivalents | 0 | 0 |
Nonqualified employee benefit trusts | 0 | 0 |
Derivative assets | 0 | 0 |
Derivative liabilities | 0 | 0 |
Estimate of Fair Value Measurement |  |  |
Debt Instrument, Fair Value Disclosure [Abstract] |  |  |
Long-term debt, Fair Value | 2,827 | 2,894 |
Reported Value Measurement |  |  |
Debt Instrument, Fair Value Disclosure [Abstract] |  |  |
Long-term debt, Fair Value | $ 2,971 | $ 2,968 |

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