Other Revenues and Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Other Income and Expenses [Abstract]
Compensation	$ 124	$ 103
Contracted services and other labor costs	66	58
Transition services agreements	3	6
Premium and other taxes, licenses and fees	15	10
Volume related costs, excluding compensation, net of DAC capitalization	128	147
Interest expense on debt	17	17
Other	57	88
Total other expenses	$ 410	$ 429