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Income Taxes (Narrative) (Detail) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Non Variable Interest Entities [Line Items] |  |
NOL carryforward | $ 4,400 |
Foreign tax credit | 55 |
Unrecognized Tax Benefits | 0 | $ 0
Valuation allowance on net deferred tax asset | $ 1,400 | $ 1,400

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