INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions		Jun. 30, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Other Investments, amortized cost	[1]	$ 2,016	$ 1,450
Asset derivatives		543	1,207
Assets, fair value		87,948	83,044
Liability derivatives		1,121	1,998
Liabilities		113,891	109,337
Liabilities, fair value disclosure		1,121	1,998
Variable Interest Entity, Consolidated
Variable Interest Entity [Line Items]
Securities available for sale, fixed maturities, amortized cost		4,149	4,168
Securities available for sale, fixed maturities, fair value		5,059	4,982
Securities available for sale, perpetual securities, amortized cost		241	237
Securities available for sale, perpetual securities, fair value		216	208
Available-for-sale equity securities, amortized cost basis		1,032	972
Available-for-sale securities, equity securities		1,123	1,044
Other Investments, amortized cost	[2]	1,200	819
Other investments, fair value	[2]	1,186	789
Asset derivative, amortized cost	[3]	142	127
Asset derivatives	[3]	142	127
Assets, amortized cost		6,764	6,323
Assets, fair value		7,726	7,150
Liability derivatives, amortized cost	[3]	133	146
Liability derivatives	[3]	133	146
Liabilities		133	146
Liabilities, fair value disclosure		$ 133	$ 146

[1] Includes $1,200 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