INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income tax (expense) benefit:
Current (expense) benefit			$ (36)	$ (552)	$ 197
Deferred (expense) benefit			(150)	(1,143)	1,876
Income tax (expense) benefit			$ (186)	(1,695)	2,073
Federal statutory rate, percent			35.00%
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Expected income tax (expense) benefit			$ (578)	(2,140)	1,858
Noncontrolling interest			124	119	101
Separate Accounts investment activity			181	116	122
Non-taxable investment income (loss)			8	12	20
Tax audit interest			1	(6)	(14)
State income taxes			1	(4)	(6)
AB Federal and foreign taxes			2	4	2
Tax settlement	$ (77)	$ (212)	77	212	0
Other			(2)	(8)	(10)
Income tax (expense) benefit			$ (186)	$ (1,695)	$ 2,073