DAC, VOBA, DSI and DFEL - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract]
DAC amortization	$ 273	$ 252	$ 778	$ 754
VOBA amortization	12	12	34	36
DSI amortization	4	5	13	16
DFEL amortization	$ 92	$ 79	$ 288	$ 231