DAC, VOBA, DSI and DFEL - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
DAC amortization	$ 250	$ 246
VOBA amortization	12	13
DSI amortization	5	6
DFEL amortization	$ 75	$ 68