Financing Receivables -Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Allowance for credit losses
Reinsurance deposit receivable	$ 1,400	$ 1,400
Consumer Portfolio Segment [Member] \| Policy Loan [Member]
Allowance for credit losses
Allowance for credit losses	0	0
Consumer Portfolio Segment [Member] \| Margin Loans [Member]
Allowance for credit losses
Financing receivable balance	1,100	1,000
Consumer Portfolio Segment [Member] \| Pledged Asset Line of Credit [Member]
Allowance for credit losses
Financing receivable balance	274	224
Allowance for credit losses	0	0
Unallocated Financing Receivables [Member] \| Deposit Receivable [Member]
Allowance for credit losses
Allowance for credit losses	$ 0	$ 0

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

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+ References

No definition available.

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- Definition

Amount of the reinsurer's funds held on its behalf by the ceding insurer, including funds held in trust, under reinsurance treaties or contracts with the assuming insurer as security for the payment of the obligations thereunder.

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- Definition

Amount, before allowance for credit loss, of financing receivable.

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