Segment Information (Product Table) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	$ 50,384	$ 49,486	$ 49,680
Life insurance
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	22,872	21,256	20,759
Accident & health insurance
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	17,498	15,346	15,159
Annuities
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	7,499	7,916	8,590
Other (1)
Segment Reporting Information [Line Items]
Premiums, Fees & Other Revenues	$ 2,515	$ 4,968	$ 5,172