INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions		Mar. 31, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Other Investments, amortized cost	[1]	$ 1,701	$ 1,450
Asset derivatives		580	1,207
Assets, fair value		85,122	83,044
Liability derivatives		1,099	1,998
Liabilities		113,310	109,337
Liabilities, fair value disclosure		1,099	1,998
Variable Interest Entity, Consolidated
Variable Interest Entity [Line Items]
Securities available for sale, fixed maturities, amortized cost		4,143	4,168
Securities available for sale, fixed maturities, fair value		4,964	4,982
Securities available for sale, perpetual securities, amortized cost		246	237
Securities available for sale, perpetual securities, fair value		215	208
Available-for-sale equity securities, amortized cost basis		1,013	972
Available-for-sale securities, equity securities		1,078	1,044
Other Investments, amortized cost	[2]	926	819
Other investments, fair value	[2]	906	789
Asset derivative, amortized cost	[3]	146	127
Asset derivatives	[3]	146	127
Assets, amortized cost		6,474	6,323
Assets, fair value		7,309	7,150
Liability derivatives, amortized cost	[3]	125	146
Liability derivatives	[3]	125	146
Liabilities		125	146
Liabilities, fair value disclosure		$ 125	$ 146

[1] Includes $926 in 2017 and $819 in 2016 of loan receivables from consolidated variable interest entities

[2] Consists of CMLs and MMLs

[3] Consist entirely of derivatives