General Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Debt outstanding:
Investments	$ 159	$ 159	$ 174	$ 173	$ 103
Premium installment receivables	153	153	139	96	91	$ 91
Reinsurance recoverables	75	75	74	74	74
Other assets	22	22	23	18	18
Assets	409	409	410	361	286
Commitments to fund mortgage loans, bank loans and agent loans	2	2	3	4	3
Liabilities	2	2	3	4	3
Total	411	411	413	365	289
Premium Receivable, Credit Loss Expense (Reversal)	65	201
Writeoffs	(51)	(139)
Fixed income securities
Debt outstanding:
Fixed income securities	8	8	7	4	0	0
Mortgage loans
Debt outstanding:
Allowance for credit losses	85	85	86	85	45	$ 3
Bank loans, net
Debt outstanding:
Allowance for credit losses	61	61	76	79	53
Agent loans, net
Debt outstanding:
Allowance for credit losses	$ 5	$ 5	$ 5	$ 5	$ 5

Allowance for Credit Loss

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Assets, Allowance for Credit Loss

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Other Assets, Allowance for Credit Loss

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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

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Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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Amount of expense (reversal of expense) for expected credit loss on premium receivable.

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The carrying value as of the balance sheet date of the estimated valuation allowance to reduce gross premiums receivable to net realizable value.

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Amount of writeoff of premium receivable, charged against allowance for credit loss.

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Amount of allowance for credit loss on reinsurance recoverable.

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