INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		$ 85,369	$ 91,630
Available for sale, fixed maturity securities		98,696	105,882
Commercial mortgage and other loans		11,786	10,554
Commercial mortgage and other loans, fair value		11,996	10,655
Other investments		3,842	2,429
Asset derivatives		936	583
Assets, fair value		108,012	114,028
Liability derivatives		1,619	697
Liabilities		124,289	131,527
Liabilities, fair value		1,619	697
Variable Interest Entity, Consolidated
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost	[1]	3,264	3,487
Available for sale, fixed maturity securities		4,490	4,596
Commercial mortgage and other loans	[1]	9,740	8,964
Commercial mortgage and other loans, fair value		9,910	9,040
Other investments	[1],[2]	1,535	826
Other investments, fair value	[2]	1,535	826
Asset derivatives, amortized cost		78	133	[1],[3]
Asset derivatives	[3]	78	133
Assets, amortized cost	[1]	14,617	13,410
Assets, fair value		16,013	14,595
Liability derivatives, amortized cost	[1],[3]	414	231
Liability derivatives	[3]	414	231
Liabilities	[1]	414	231
Liabilities, fair value		$ 414	$ 231

[1] Net of allowance for credit losses

[2] Consists entirely of alternative investments in limited partnerships

[3] Consists entirely of derivatives