INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions		Mar. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost	[1]	$ 75,306
Available for sale, fixed maturity securities		78,099	$ 75,741
Commercial mortgage and other loans		13,328	13,496
Commercial mortgage and other loans, fair value		13,052	13,212
Other investments		5,241	4,070
Asset derivatives		549	617
Assets, fair value		86,105	82,924
Liability derivatives		1,058	1,698
Liabilities		115,182	111,598
Liabilities, fair value		1,058	1,698
Variable Interest Entity, Consolidated
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost	[2]	3,222	3,223
Available for sale, fixed maturity securities		3,925	3,805
Commercial mortgage and other loans	[2]	10,684	10,832
Commercial mortgage and other loans, fair value		10,688	10,762
Other investments	[2],[3]	2,049	1,909
Other investments, fair value	[3]	2,049	1,909
Asset derivatives, amortized cost	[2],[4]	63	62
Asset derivatives	[4]	63	62
Assets, amortized cost	[2]	16,018	16,026
Assets, fair value		16,725	16,538
Liability derivatives, amortized cost	[2],[4]	399	390
Liability derivatives	[4]	399	390
Liabilities	[2]	399	390
Liabilities, fair value		$ 399	$ 390

[1] Net of allowance for credit losses

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships

[4] Consists entirely of derivatives