INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Fixed maturity securities, available-for-sale, amortized cost	[1]	$ 69,161
Fixed maturity securities, available-for-sale		69,801	$ 75,741
Commercial mortgage and other loans		12,873	13,496
Commercial mortgage and other loans, fair value		12,432	13,212
Other investments		5,241	4,070
Asset derivatives		578	617
Assets, fair value		79,159	82,924
Liability derivatives		1,666	1,698
Liabilities		102,442	111,598
Liabilities, fair value		1,666	1,698
Variable Interest Entity, Consolidated
Variable Interest Entity [Line Items]
Fixed maturity securities, available-for-sale, amortized cost	[2]	2,731	3,223
Fixed maturity securities, available-for-sale		3,432	3,805
Commercial mortgage and other loans	[2]	10,425	10,832
Commercial mortgage and other loans, fair value		10,097	10,762
Other investments	[2],[3]	2,278	1,909
Other investments, fair value	[3]	2,278	1,909
Asset derivatives, amortized cost	[2],[4]	59	62
Asset derivatives	[4]	59	62
Assets, amortized cost	[2]	15,493	16,026
Assets, fair value		15,866	16,538
Liability derivatives, amortized cost	[2],[4]	442	390
Liability derivatives	[4]	442	390
Liabilities	[2]	442	390
Liabilities, fair value		$ 442	$ 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