INVESTMENTS - Investments in Variable Interest Entities Not Consolidated (Detail) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		$ 70,689	$ 75,469
Available for sale, fixed maturity securities		73,290	75,741
Securities held to maturity, fixed maturities, amortized cost		17,824	19,063
Held to maturity, fixed maturity securities, fair value		19,657	21,210
Other investments		4,530	4,070
Assets, fair value		80,325	82,924
Variable Interest Entity, Not Consolidated
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		5,904	3,998
Available for sale, fixed maturity securities		6,424	4,259
Other investments	[1]	369	381
Other investments, fair value	[1]	369	381
Assets, amortized cost		6,273	4,379
Assets, fair value		$ 6,793	$ 4,640

[1] Consists entirely of alternative investments in limited partnerships