DAC, VOBA, DSI, and DFEL - DAC (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Amortization	$ (285)	$ (262)	$ (567)	$ (525)
Traditional Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance as of beginning-of-year			1,281	1,335
Deferrals			45	45
Amortization			(71)	(72)
Balance as of end-of-period	1,255	1,308	1,255	1,308
UL and Other
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance as of beginning-of-year			6,057	5,916
Deferrals			213	198
Amortization			(167)	(158)
Balance as of end-of-period	6,103	5,956	6,103	5,956
Group Protection
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance as of beginning-of-year			198	178
Deferrals			60	67
Amortization			(65)	(59)
Balance as of end-of-period	193	186	193	186
Retirement Plan Services
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance as of beginning-of-year			242	242
Deferrals			9	9
Amortization			(9)	(10)
Balance as of end-of-period	242	241	242	241
Variable Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance as of beginning-of-year			4,008	3,851
Deferrals			270	264
Amortization			(219)	(195)
Balance as of end-of-period	4,059	3,920	4,059	3,920
Fixed Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance as of beginning-of-year			452	394
Deferrals			85	26
Amortization			(36)	(31)
Balance as of end-of-period	$ 501	$ 389	$ 501	$ 389