DAC, VOBA, DSI, and DFEL - Reconciliation of DAC, VOBA and DSI (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	$ 12,677	$ 12,637
Other Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	9	7
Traditional Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	1,176	1,208
UL and Other
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	6,232	6,219
Group Protection
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	179	178
Retirement Plan Services
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	310	308
Variable Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	4,267	4,240
Fixed Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
DAC, VOBA and DSI	$ 504	$ 477