Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Other Income and Expenses [Abstract]
Employee-related costs (1)	$ 900	$ 896	$ 1,850	$ 1,829
Third-party staffing costs	362	360	711	704
General and administrative expenses	153	187	301	330
Pension, postretirement and postemployment benefit costs	65	59	130	118
Premium taxes, other taxes, and licenses & fees	171	184	347	345
Commissions and other variable expenses	1,462	1,447	2,965	2,864
Capitalization of DAC	(683)	(729)	(1,423)	(1,447)
Amortization of DAC and VOBA	499	479	1,007	949
Amortization of negative VOBA	(6)	(6)	(12)	(13)
Interest expense on debt	257	256	521	511
Total other expenses	3,180	3,133	6,397	6,190
Net change in cash surrender value of investments, net of premiums paid	$ (27)	$ (34)	$ (77)	$ (72)