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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets |  |
Employee benefits | $ 81 | $ 114
Net operating loss carryforwards | 1,416 | 2,024
Tax credit carryforwards | 312 | 300
Interest expense limitation | 372 | 266
Other | 179 | 181
Valuation allowances | (64) | (77)
Total deferred tax assets | 2,296 | 2,808
Deferred tax liabilities |  |
Property, plant and equipment | 217 | 215
Investments(a) | 4,124 | 3,951
Other | 25 | 30
Total deferred tax liabilities | 4,366 | 4,196
Net deferred tax liability | $ (2,070) | $ (1,388)

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