DAC, VOBA, DSI and DFEL - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract]
DAC amortization	$ 275	$ 247
VOBA amortization	11	11
DSI amortization	4	5
DFEL amortization	$ 101	$ 105