Reinsurance (Effects of Reinsurance on Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Assets
Premiums and other receivables	$ 21,238	$ 20,809
Market risk benefit assets	1,060	1,092
Liabilities
Future policy benefits	31,682	31,085
Policyholder account balances	87,174	87,162
Market risk benefit liabilities	8,079	8,346
Other policy-related balances	3,715	3,677
Other liabilities	8,885	8,460
Direct Reinsurance
Assets
Premiums and other receivables	264	340
Market risk benefit assets	1,052	1,075
Liabilities
Future policy benefits	31,511	30,925
Policyholder account balances	83,760	83,019
Market risk benefit liabilities	7,864	8,095
Other policy-related balances	2,180	2,109
Other liabilities	6,707	6,774
Assumed Reinsurance
Assets
Premiums and other receivables	29	32
Market risk benefit assets	0	0
Liabilities
Future policy benefits	171	160
Policyholder account balances	3,414	4,143
Market risk benefit liabilities	215	251
Other policy-related balances	1,535	1,568
Other liabilities	(5)	9
Ceded Reinsurance
Assets
Premiums and other receivables	20,945	20,437
Market risk benefit assets	8	17
Liabilities
Future policy benefits	0	0
Policyholder account balances	0	0
Market risk benefit liabilities	0	0
Other policy-related balances	0	0
Other liabilities	$ 2,183	$ 1,677