Income Tax (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Provision for income tax expense (benefit)				$ 1,551	$ 1,509	$ 886
Operating Expenses				12,586	13,150	$ 13,689
Deferred Tax Liabilities, Investments	$ 4,167	$ 4,421		4,167	$ 4,421
Foreign Tax Authority
Deferred Tax Liabilities, Investments	260			$ 260
Settlement with Taxing Authority
Tax Adjustments, Settlements, and Unusual Provisions			$ (226)
Provision for income tax expense (benefit)	(53)		(158)
Operating Expenses		28	86
Operating Expenses Net		$ 22	$ 68
Settlement with Taxing Authority | American Life Insurance Company [Member]
Tax Adjustments, Settlements, and Unusual Provisions	(42)
Provision for income tax expense (benefit)	(34)
Operating Expenses	10
Operating Expenses Net	$ 8