Other Revenues and Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Income and Expenses [Abstract]
Amortization of DAC, VOBA and negative VOBA	$ 2,021	$ 1,926	$ 1,802
Interest expense on debt	1,037	1,045	938
Employee related costs (1)	3,697	3,626	3,520
Third party staffing costs	1,547	1,477	1,573
General and administrative expenses	481	828	669
Commissions and other variable expenses	6,018	5,819	5,265
Capitalization of DAC	(2,833)	(2,917)	(2,614)
Premium taxes, other taxes, and licenses & fees	783	660	608
Pension, postretirement and postemployment benefit costs	266	246	98
Total other expenses	13,017	12,710	11,859
Net change in cash surrender value of investments, net of premiums paid	$ (139)	$ (140)	$ 93