Amount of allowance for credit loss on reinsurance recoverable and deposit assets.

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The amount of reserves associated with modified coinsurance reinsurance arrangements for portions of the Company's deferred annuity business.

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Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

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Amount of 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 cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of funds held as security for payments to be received under reinsurance contracts.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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

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Amount of investments classified as other.

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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.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Reinsurance (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Ceded Credit Risk [Line Items]
Reinsurance ACL and deposit assets		$ 192
Reinsurance recoverables, net of allowance for credit losses	$ 19,511		$ 19,164
Liabilities for funds withheld	10,148		5,566
Trading securities	3,959		4,602
Fixed maturity AFS securities	101,277		103,773
Mortgage loans	16,690		16,244
Cash and invested cash	5,266		1,879	$ 1,320	$ 1,848
Other investments	3,220		2,565
Derivative investments	4,417		1,911
Accrued investment income	1,152		1,109
Equity securities	83		103
Athene Holding Ltd. [Member]
Ceded Credit Risk [Line Items]
Reserves associated with modified coinsurance reinsurance arrangements	6,200
Letter of credit	188
Deposit assets	6,300		$ 6,600
Trading securities	3,000
Fixed maturity AFS securities	1,800
Cash and invested cash	378
Other investments	111
Derivative investments	49
Accrued investment income	48
Equity securities	14
Athene Holding Ltd. [Member] \| Commercial Loan [Member]
Ceded Credit Risk [Line Items]
Mortgage loans	765
Athene Holding Ltd. [Member] \| Ceded Credit Risk, Secured [Member]
Ceded Credit Risk [Line Items]
Reserves associated with modified coinsurance reinsurance arrangements	$ 175