SCHEDULE IV - CONSOLIDATED REINSURANCE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated reinsurance, net [Abstract]
Premiums Earned, Net, Total	$ 5,617	$ 5,372	$ 5,513
Reinsurance Related [Member]
Consolidated reinsurance, net [Abstract]
Gross Amount	14,154	13,304	13,498
Ceded to Other Companies	1,744	1,656	1,579
Assumed from Other Companies	94	95	91
Premiums Earned, Net, Total	12,504	11,743	12,010
Gross Amount, Life Insurance in Force	1,845,479	1,653,625	1,524,977
Ceded to Other Companies, Life Insurance in Force	776,226	674,256	628,654
Assumed from Other Companies, Life Insurance in Force	7,659	7,875	7,611
Premiums, Net, Life Insurance in Force, Total	$ 1,076,912	$ 987,244	$ 903,934
Percentage of Amount Assumed to Net, Life Insurance in Force	0.70%	0.80%	0.80%
Life Insurance And Annuity Reserves And Claims Due [Member] | Reinsurance Related [Member]
Consolidated reinsurance, net [Abstract]
Gross Amount	$ 11,104	$ 10,474	$ 10,725
Ceded to Other Companies	1,707	1,621	1,545
Assumed from Other Companies	88	88	82
Premiums Earned, Net, Total	$ 9,485	$ 8,941	$ 9,262
Percentage of Amount Assumed to Net	0.90%	1.00%	0.90%
Accident And Health Life Insurance Reserves [Member] | Reinsurance Related [Member]
Consolidated reinsurance, net [Abstract]
Gross Amount	$ 3,050	$ 2,830	$ 2,773
Ceded to Other Companies	37	35	34
Assumed from Other Companies	6	7	9
Premiums Earned, Net, Total	$ 3,019	$ 2,802	$ 2,748
Percentage of Amount Assumed to Net	0.20%	0.20%	0.30%