Consolidated Statements Of Comprehensive Income (Loss) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Insurance premiums	$ 5,617,000,000	$ 5,372,000,000	$ 5,513,000,000
Fee income	6,887,000,000	6,371,000,000	6,497,000,000
Net investment income	6,115,000,000	5,510,000,000	5,223,000,000
Realized gain (loss)	(212,000,000)	(513,000,000)	(610,000,000)
Amortization of deferred gain on business sold through reinsurance	46,000,000	41,000,000	31,000,000
Other revenues	777,000,000	658,000,000	604,000,000
Total revenues	19,230,000,000	17,439,000,000	17,258,000,000
Expenses
Interest credited	2,915,000,000	2,923,000,000	2,780,000,000
Benefits	8,529,000,000	8,677,000,000	7,880,000,000
Commissions and other expenses	5,791,000,000	5,064,000,000	5,287,000,000
Interest and debt expense	270,000,000	284,000,000	326,000,000
Spark and strategic digitization expense	87,000,000	68,000,000	66,000,000
Total expenses	17,592,000,000	17,016,000,000	16,339,000,000
Income (loss) before taxes	1,638,000,000	423,000,000	919,000,000
Federal income tax expense (benefit)	233,000,000	(76,000,000)	33,000,000
Net income (loss)	1,405,000,000	499,000,000	886,000,000
Unrealized investment gains (losses)	(2,535,000,000)	3,192,000,000	5,288,000,000
Foreign currency translation adjustment	(2,000,000)	5,000,000	6,000,000
Funded status of employee benefit plans	47,000,000	61,000,000	(28,000,000)
Total other comprehensive income (loss), net of tax	(2,490,000,000)	3,258,000,000	5,266,000,000
Comprehensive income (loss)	$ (1,085,000,000)	$ 3,757,000,000	$ 6,152,000,000
Net Income (Loss) Per Common Share
Basic (in dollars per share)	$ 7.50	$ 2.58	$ 4.41
Diluted (in dollars per share)	7.43	2.56	4.38
Cash Dividends Declared Per Common Share	$ 1.71	$ 1.62	$ 1.51