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Summary of Net Operating Income (Loss) for Segments and Corporate and Other (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Adjustment for the portion of (gains) losses on the early extinguishment of debt attributable to noncontrolling interests | $ 2 |  | $ 2 |
Net Investment (Gains) Losses |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjustment for portion of net investment (gains) losses attributable to noncontrolling interests | 1 | $ 2 | 2 | $ 2
Changes in fair value of market risk benefits and associated hedges |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjustment for changes in reserves, attributed fees and benefit payments | $ (2) | $ (4) | $ (5) | $ (7)

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- Definition Adjustment to changes in fair value of market risk benefits and associated hedges to exclude changes in reserves, attributed fees and benefit payments, before taxes, to arrive at net operating income (loss). + References No definition available. + Details
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