Amount, after effect of reinsurance, of liability for future policy benefit.

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Amount, before effect of reinsurance and after current period update of cash flow assumption and discount rate change, of expected future policy benefit and expense component of liability for future policy benefit.

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Amount of cumulative increase (decrease) in expected future policy benefit and expense component for liability of future policy benefit from cash flow assumption change for future cash flows.

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Amount, after allowance for credit loss, recoverable under reinsurance of liability for future policy benefit.

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General - Schedule of impact of adoption for reserve for future policy benefits (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Present value of expected future policy benefits
Balance	$ 2,865	$ 2,753	$ 2,994	$ 3,469	$ 1,501
Total adjustments		(12)		0
Less: reinsurance recoverables					162
Net reserve for future policy benefits, after reinsurance recoverables					1,339
As reported
Present value of expected future policy benefits
Balance					1,039
Effect of the remeasurement of the reserve at upper-medium grade fixed income-based rate
Present value of expected future policy benefits
Total adjustments					385
Adjustments for contracts with net premiums in excess of gross premiums
Present value of expected future policy benefits
Total adjustments					77
Revision of Prior Period, Adjustment
Present value of expected future policy benefits
Total adjustments					462
Accident and health
Present value of expected future policy benefits
Balance	2,326	2,229	2,433	2,796	1,037
Total adjustments		0		0
Less: reinsurance recoverables					159
Net reserve for future policy benefits, after reinsurance recoverables					878
Accident and health \| As reported
Present value of expected future policy benefits
Balance					728
Accident and health \| Effect of the remeasurement of the reserve at upper-medium grade fixed income-based rate
Present value of expected future policy benefits
Total adjustments					232
Less: reinsurance recoverables					33
Accident and health \| Adjustments for contracts with net premiums in excess of gross premiums
Present value of expected future policy benefits
Total adjustments					77
Less: reinsurance recoverables					51
Accident and health \| Revision of Prior Period, Adjustment
Present value of expected future policy benefits
Total adjustments					309
Traditional life
Present value of expected future policy benefits
Balance	$ 539	524	$ 561	673	464
Total adjustments		$ (12)		$ 0
Less: reinsurance recoverables					3
Net reserve for future policy benefits, after reinsurance recoverables					461
Traditional life \| As reported
Present value of expected future policy benefits
Balance					311
Traditional life \| Effect of the remeasurement of the reserve at upper-medium grade fixed income-based rate
Present value of expected future policy benefits
Total adjustments					153
Traditional life \| Adjustments for contracts with net premiums in excess of gross premiums
Present value of expected future policy benefits
Total adjustments					0
Traditional life \| Revision of Prior Period, Adjustment
Present value of expected future policy benefits
Total adjustments					153
Traditional Life Insurance Reclassified From Contractholder Funds
Present value of expected future policy benefits
Balance					$ 11