SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Impact from Adoption on Balance Sheet (Details 2) - USD ($) $ in Millions		3 Months Ended						9 Months Ended		12 Months Ended
		Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Jan. 01, 2021
Retained earnings		$ 44,892						$ 44,892		$ 41,381
Net earnings		$ 1,596	$ 1,388	$ 1,032	$ 888	$ 1,105	$ 1,293	$ 4,016	$ 3,286
Accounting Standards Update 2018-12 | Pro Forma
Retained earnings	[1]									40,963
Net earnings										4,231
Effect of changes in discount rate assumptions	[2]									(15,832)
Accounting Standards Update 2018-12 | Pro Forma | Cumulative Effect, Period of Adoption, Adjustment
Retained earnings											$ (300)
Accounting Standards Update 2018-12 | Revision of Prior Period, Accounting Standards Update, Adjustment | Pro Forma
Increase in deferred profit liability										490
Accounting Standards Update 2018-12 | Transition Adjustments | Pro Forma
Retained earnings	[1]									(418)
Net earnings										(94)
Effect of changes in discount rate assumptions	[2]									(15,832)
Effect of changes in discount rate assumptions during period, net of income taxes										$ 2,738
Accounting Standards Update 2018-12 | Transition Adjustments | Pro Forma | Cumulative Effect, Period of Adoption, Adjustment
Retained earnings											(324)
Effect of changes in discount rate assumptions											$ (18,570)

[1] Adjustment reflects the impacts from adoption of ($324) as a result of capping the net premium ratio at 100% for cohorts that are in a loss position at transition, and the decrease in current year net earnings of $(94) under the updated standard.

[2] Adjustment reflects the impacts from adoption of ($18,570) and 2021 activity of $2,738 due to changes in the discount rate assumptions under the updated standard.