Transactions With Affiliates (Comprehensive Income (Loss) Transactions With Affiliates) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Insurance premiums	$ 5,359	$ 5,122	$ 5,277
Net investment income	5,844	5,264	4,962
Realized gain (loss)	89	(526)	(828)
Amortization of deferred gain on business sold through reinsurance	40	33	27
Interest credited	2,893	2,899	2,754
Benefits	8,039	8,050	7,585
Interest and debt expense	114	125	145
Premiums Received On Assumed (Paid On Ceded) Reinsurance Contract [Member]
Related Party Transaction [Line Items]
Insurance premiums	(463)	(439)	(407)
Fees For Management Of General Account [Member]
Related Party Transaction [Line Items]
Net investment income	(138)	(140)	(133)
Net Investment Income On Ceded Funds Withheld Treaties [Member]
Related Party Transaction [Line Items]
Net investment income	(113)	(119)	(139)
Ceded Reinsurance Contracts [Member]
Related Party Transaction [Line Items]
Benefits	(443)	(585)	(254)
Commissions And Other Expenses		1	19
Ceded Reinsurance Contracts [Member] \| GLB Reserves Embedded Derivative [Member]
Related Party Transaction [Line Items]
Realized gain (loss)	(1,301)	(30)	(305)
Ceded Reinsurance Contracts [Member] \| Reinsurance Related Embedded Derivatives [Member]
Related Party Transaction [Line Items]
Realized gain (loss)	1,626	193	472
Ceded Reinsurance Contracts [Member] \| Other Gains (Losses) [Member]
Related Party Transaction [Line Items]
Realized gain (loss)	94	(175)	(301)
Service Agreement [Member]
Related Party Transaction [Line Items]
Commissions And Other Expenses	29	17	(15)
Assumed Reinsurance Contracts [Member]
Related Party Transaction [Line Items]
Interest credited	48	45	60
Inter-Company Debt [Member]
Related Party Transaction [Line Items]
Net investment income	29	40	53
Interest and debt expense	107	116	130
Amortization Of Deferred Gain On Business Sold Through Reinsurance, Pre-Tax [Member]
Related Party Transaction [Line Items]
Amortization of deferred gain on business sold through reinsurance	$ 3	$ 3	$ (4)

The amortization of net deferred gain (loss) on indemnity reinsurance transactions.

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