Separate Accounts (Separate Account Liability) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	$ 88,271
Separate Account, Liability, Ending Balance	90,313	$ 82,675
Variable Annuities
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	79,990	77,653
Premiums and deposits	597	599
Surrenders and withdrawals	(6,080)	(4,603)
Benefit payments	(1,176)	(1,101)
Investment performance	9,647	4,175
Policy charges	(1,637)	(1,638)
Net transfers from (to) general account	(96)	(8)
Other	(28)	(5)
Separate Account, Liability, Ending Balance	81,217	75,072
Universal Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	5,921	5,218
Premiums and deposits	115	122
Surrenders and withdrawals	(163)	(138)
Benefit payments	(49)	(51)
Investment performance	886	440
Policy charges	(168)	(152)
Net transfers from (to) general account	(31)	(42)
Other	0	0
Separate Account, Liability, Ending Balance	6,511	5,397
Company-Owned Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,162	1,932
Premiums and deposits	0	0
Surrenders and withdrawals	(14)	(11)
Benefit payments	(15)	(21)
Investment performance	242	174
Policy charges	(49)	(37)
Net transfers from (to) general account	(5)	0
Other	6	(1)
Separate Account, Liability, Ending Balance	$ 2,327	$ 2,036