Reinsurance - Rollforward of the reinsurance recoverable allowance for credit losses (Details) - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2022 |
Dec. 31, 2021 |
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| Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward] | ||
| Balance, beginning of year | $ 101 | $ 83 |
| Current period provision for expected credit losses and disputes | 8 | 18 |
| Write-offs charged against the allowance for credit losses and disputes | 0 | 0 |
| Other changes | 25 | 0 |
| Balance, end of year | $ 84 | $ 101 |
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- Definition Amount of the write-down or write-off of a receivable from a reinsurer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) in allowance for credit loss on reinsurance recoverable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of expense (reversal of expense) for expected credit loss on reinsurance recoverable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of allowance for credit loss on reinsurance recoverable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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