Insurance (Guarantees Related to Annuity Contracts) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Variable Annuity Guarantees: | Guaranteed Death Benefits
Net Amount at Risk by Product and Guarantee [Line Items]
Total account value	$ 45,246	$ 62,281
Separate account value (1)	29,096	42,043
Net amount at risk	$ 6,091	$ 1,490
Average attained age of contractholders	69 years	68 years
Variable Annuity Guarantees: | Guaranteed Annuitization Benefits
Net Amount at Risk by Product and Guarantee [Line Items]
Total account value	$ 16,413	$ 23,121
Separate account value (1)	15,059	21,508
Net amount at risk	$ 685	$ 500
Average attained age of contractholders	68 years	66 years
Other Annuity Guarantees: | Guaranteed Annuitization Benefits
Net Amount at Risk by Product and Guarantee [Line Items]
Total account value	$ 3,686	$ 5,002
Net amount at risk	$ 180	$ 196
Average attained age of contractholders	57 years	56 years