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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets |  |
Employee benefits | $ 114 | $ 116
Net operating loss carryforwards | 2,024 | 2,007
Tax credit carryforwards | 300 | 303
Interest expense limitation | 266 | 82
Other | 181 | 192
Valuation allowances | (77) | (79)
Total deferred tax assets | 2,808 | 2,621
Deferred tax liabilities |  |
Property, plant and equipment | 215 | 163
Investments(a) | 3,951 | 3,056
Other | 30 | 25
Total deferred tax liabilities | 4,196 | 3,244
Net deferred tax liability | $ (1,388) | $ (623)

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