DAC, VOBA, DSI, and DFEL - Reconciliation of DAC, VOBA and DSI (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	$ 12,637	$ 12,426
Other Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	7	0
Traditional Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	1,208	1,329
UL and Other
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	6,219	6,146
Group Protection
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	178	136
Retirement Plan Services
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	308	288
Variable Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	4,240	4,104
Fixed Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred acquisition costs, value of business acquired and deferred sales inducements	$ 477	$ 423