Reinsurance (Effects of Affiliated Reinsurance on Balance Sheets) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Assets
Premiums and other receivables	$ 21,238	$ 20,809
Liabilities
Future policy benefits	31,682	31,085
Market risk benefit liabilities	8,079	8,346
Other policy-related balances	3,715	3,677
Other liabilities	8,885	8,460
Assumed Reinsurance
Assets
Premiums and other receivables	29	32
Liabilities
Future policy benefits	171	160
Market risk benefit liabilities	215	251
Other policy-related balances	1,535	1,568
Other liabilities	(5)	9
Assumed Reinsurance | Affiliated Entity
Assets
Premiums and other receivables	31	32
Liabilities
Future policy benefits	59	51
Market risk benefit liabilities	201	235
Other policy-related balances	18	14
Other liabilities	$ (21)	$ (16)