Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Other Income and Expenses [Abstract]
Amortization of DAC, VOBA and negative VOBA	$ 519	$ 502
Interest expense on debt	258	264
Employee-related costs (1)	991	950
Third-party staffing costs	376	349
General and administrative expenses	126	148
Commissions and other variable expenses	1,547	1,503
Capitalization of DAC	(698)	(740)
Premium taxes, other taxes, and licenses & fees	161	176
Pension, postretirement and postemployment benefit costs	70	65
Total other expenses	3,350	3,217
Net change in cash surrender value of investments, net of premiums paid	$ (23)	$ (50)