SIGNIFICANT ACCOUNTING POLICIES - OTHER (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liability For Future Policy Benefits Assumptions [Line Items]
Purchased stock to meet their membership requirement	$ 31
Outstanding funding agreements	$ 500
Policyholders Dividend Policy [Abstract]
Percent of dividend paying policies	5.20%
Carrying amount of dividend paying policies	$ 18,599
Separate Accounts Disclosure [Abstract]
Gain (loss) recognized on assets transferred to separate account	$ 1,148	$ 5,959	$ 19,022
Goodwill and Intangible Asset Impairment [Abstract]
Intangible asset, estimated useful life	20 years
Life Insurance Liabilities
Liability For Future Policy Benefits Assumptions [Line Items]
Minimum interest rate used to establish life insurance liabilities	5.00%
Maximum interest rate used to establish life insurance liabilities	6.30%
Weighted average interest rate used to establish life insurance and annuity liabilities	5.10%
Percentage of life insurance liabilities calculate within traditional life interest rate range	99.00%
Annuity Liabilities
Liability For Future Policy Benefits Assumptions [Line Items]
Weighted average interest rate used to establish life insurance and annuity liabilities	5.10%
Minimum interest rate used to establish annuity liabilities	1.60%
Maximum interest rate used to establish annuity liabilities	6.50%