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Income Taxes - Schedule of Deferred Income Tax Assets and Liabilities (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
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Deferred income tax assets: |  |
Net operating loss carryforwards | $ 364,000,000 | $ 219,000,000
Capital loss carryforwards | 220,000,000 | 0
Employee benefit accruals | 115,000,000 | 105,000,000
Outside basis difference | 0 | 919,000,000
Other deferred tax assets | 170,000,000 | 95,000,000
Total gross deferred income tax assets | 869,000,000 | 1,338,000,000
Less valuation allowance | (505,000,000) | (1,055,000,000)
Total deferred income tax assets | 364,000,000 | 283,000,000
Deferred income tax liabilities: |  |
Equity method investments | (15,000,000) | 0
Amortization of goodwill and intangible assets | (707,000,000) | (2,066,000,000)
Deferred contract costs | (259,000,000) | (245,000,000)
Other deferred tax liabilities | (232,000,000) | (121,000,000)
Total deferred income tax liabilities | (1,213,000,000) | (2,432,000,000)
Net deferred income tax liability | $ (849,000,000) | $ (2,149,000,000)

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