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Unaudited Interim Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Statement [Abstract] |  |  |
Gain (loss) from changes in estimates on deferred profit liability amortization | $ 323 | $ (377) | $ (249)

X
- Definition Amount of amortization expense (reversal of amortization expense) for deferred policy acquisition costs and future profits from insurance contract acquired in business combination, from realized investment gain (loss). + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration