SCHEDULE IV - CONSOLIDATED REINSURANCE (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Consolidated reinsurance, net [Abstract]
Premiums Earned, Net, Total	$ 1,564	$ 1,548	$ 1,498	$ 1,477	$ 1,419	$ 1,394	$ 1,404	$ 1,400	$ 6,087	$ 5,617	$ 5,372
Reinsurance Related [Member]
Consolidated reinsurance, net [Abstract]
Gross Amount									13,941	14,172	13,304
Ceded to Other Companies									1,898	1,744	1,656
Assumed from Other Companies									98	94	95
Premiums Earned, Net, Total									12,141	12,522	11,743
Gross Amount, Life Insurance in Force	2,028,279				1,845,479				2,028,279	1,845,479	1,653,625
Ceded to Other Companies, Life Insurance in Force	831,478				776,226				831,478	776,226	674,256
Assumed from Other Companies, Life Insurance in Force	6,512				7,659				6,512	7,659	7,875
Premiums, Net, Life Insurance in Force, Total	$ 1,203,313				$ 1,076,912				$ 1,203,313	$ 1,076,912	$ 987,244
Percentage of Amount Assumed to Net, Life Insurance in Force	0.50%				0.70%				0.50%	0.70%	0.80%
Life Insurance And Annuity Reserves And Claims Due [Member] | Reinsurance Related [Member]
Consolidated reinsurance, net [Abstract]
Gross Amount									$ 10,698	$ 11,122	$ 10,474
Ceded to Other Companies									1,864	1,707	1,621
Assumed from Other Companies									94	88	88
Premiums Earned, Net, Total									$ 8,928	$ 9,503	$ 8,941
Percentage of Amount Assumed to Net									1.10%	0.90%	1.00%
Accident And Health Life Insurance Reserves [Member] | Reinsurance Related [Member]
Consolidated reinsurance, net [Abstract]
Gross Amount									$ 3,243	$ 3,050	$ 2,830
Ceded to Other Companies									34	37	35
Assumed from Other Companies									4	6	7
Premiums Earned, Net, Total									$ 3,213	$ 3,019	$ 2,802
Percentage of Amount Assumed to Net									0.10%	0.20%	0.20%