Reinsurance (Components of Reinsurance Receivables) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reinsurance receivables related to insurance reserves
Ceded claim and claim adjustment expenses	$ 5,191	$ 4,969	$ 4,005	$ 3,835
Ceded future policy benefits	0	288
Reinsurance receivables related to paid losses	247	227
Reinsurance receivables	5,438	5,484
Allowance for uncollectible reinsurance	(22)	(21)
Reinsurance receivables, net of allowance for uncollectible reinsurance	$ 5,416	$ 5,463

Ceded Claim And Claim Adjustment Expenses

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- Definition

Ceded Future Policy Benefits

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- References

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

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- Definition

Amount of allowance for credit loss on reinsurance recoverable.

+ References

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Amount before valuation allowance recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

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- Definition

Amount before valuation allowance of reinsurance recoverables on paid losses.

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