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Acquisitions and Dispositions (Sale of Hope) (Narrative) (Detail) - Ullico Inc - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 02, 2022 | Jun. 30, 2022 | Sep. 30, 2022
Business Acquisition And Dispositions [Line Items] |  |  |
Percentage of equity interests expected to be sold | 100.00% |  |
Cash consideration from sale of equity interest | $ 690 |  |
Disposal group, recognized a pre-tax gain |  |  | $ 8
Goodwill write-off |  |  | 110
Disposal group, recognized a gain on disposal after tax |  |  | $ 89
Deferred income tax expense |  | $ 90 |

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