Transactions With Affiliates (Balance Sheet Transactions With Affiliates) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Accrued Inter-Company Interest Receivable [Member] | Accrued Investment Income [Member]
Related Party Transaction [Line Items]
Assets	$ 13	$ 11
Accrued Inter-Company Interest Receivable [Member] | Other Liabilities [Member]
Related Party Transaction [Line Items]
Liabilities	15	4
Ceded Reinsurance Contracts [Member] | Deferred Acquisition Costs And Value Of Business Acquired [Member]
Related Party Transaction [Line Items]
Assets	(67)	(150)
Ceded Reinsurance Contracts [Member] | Reinsurance Recoverables [Member]
Related Party Transaction [Line Items]
Assets	4,388	2,867
Ceded Reinsurance Contracts [Member] | Other Assets [Member]
Related Party Transaction [Line Items]
Assets	676	529
Ceded Reinsurance Contracts [Member] | Other Liabilities [Member]
Related Party Transaction [Line Items]
Liabilities	4,421	7,463
Ceded Reinsurance Contracts [Member] | Other Contract Holder Funds [Member]
Related Party Transaction [Line Items]
Liabilities	(7)	(37)
Cash Management Agreement [Member] | Other Assets [Member]
Related Party Transaction [Line Items]
Assets	124	3,854
Service Agreement [Member] | Other Assets [Member]
Related Party Transaction [Line Items]
Assets	6	64
Service Agreement [Member] | Other Liabilities [Member]
Related Party Transaction [Line Items]
Liabilities	41	35
Assumed Reinsurance Contracts [Member] | Future Contract Benefits [Member]
Related Party Transaction [Line Items]
Liabilities	16	21
Assumed Reinsurance Contracts [Member] | Other Contract Holder Funds [Member]
Related Party Transaction [Line Items]
Liabilities	361	364
Inter-Company Debt [Member] | Fixed Maturity AFS Securities [Member]
Related Party Transaction [Line Items]
Assets	1,216	1,474
Inter-Company Debt [Member] | Short-term Debt [Member]
Related Party Transaction [Line Items]
Liabilities	562	1,084
Inter-Company Debt [Member] | Long-term Debt [Member]
Related Party Transaction [Line Items]
Liabilities	$ 2,269	$ 2,334