Segment Information (Product Table) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	$ 51,961	$ 56,365	$ 49,015
Life insurance
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	22,111	21,728	22,742
Accident & health insurance
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	18,014	17,441	17,367
Annuities
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	10,193	15,657	6,394
Other
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	$ 1,643	$ 1,539	$ 2,512