Reinsurance (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Ceded Credit Risk [Line Items]
Reinsurance, ACL	$ 190	$ 192
Maximum retention per single insured life on fixed and VUL insurance contracts	$ 20
Percent of mortality risk reinsured on newly issued non-term life insurance contracts	20.00%
Reinsurance recoverables, net of allowance for credit losses	$ 20,295	16,496
Swiss Re [Member]
Ceded Credit Risk [Line Items]
Trust funded to support reinsurance receivable	1,000	1,200
Liabilities for reinsurance related embedded derivatives	143	31
Reinsurance recoverables, net of allowance for credit losses	1,100	1,200
Protective [Member]
Ceded Credit Risk [Line Items]
Reinsurance recoverables, net of allowance for credit losses	10,700	11,300
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments	14,000	15,200
Athene Holding Ltd. [Member]
Ceded Credit Risk [Line Items]
Reinsurance ACL and deposit assets	5,000	5,800
Deferred gain on business sold through reinsurance	26	29	$ 30
Reserves associated with modified coinsurance reinsurance arrangements	5,404	$ 6,144
Letter of credit	146
Athene Holding Ltd. [Member] | Over-Collateralization [Member]
Ceded Credit Risk [Line Items]
Reserves associated with modified coinsurance reinsurance arrangements	157
Resolution Life [Member]
Ceded Credit Risk [Line Items]
Amount of amortization, after-tax, of deferred gain on business sold	10
Reinsurance recoverables, net of allowance for credit losses	4,700
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments	$ 4,100