INVESTMENTS - Investments in Variable Interest Entities Not Consolidated (Details) - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		$ 81,464	$ 85,369
Available for sale, fixed maturity securities		89,965	98,696
Securities held to maturity, fixed maturities, amortized cost		20,680	22,008
Held to maturity, fixed maturity securities, fair value		24,585	26,869
Other investments		3,960	3,842
Assets, fair value		98,528	108,012
Variable Interest Entity, Not Consolidated
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		4,513	4,779
Available for sale, fixed maturity securities		5,260	5,864
Other investments	[1]	340	323
Other investments, fair value	[1]	340	323
Assets, amortized cost		4,853	5,102
Assets, fair value		$ 5,600	$ 6,187

[1] Consists entirely of alternative investments in limited partnerships