DERIVATIVES (SCHEDULE OF DERIVATIVE INSTRUMENTS) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) policy Contract
Interest Rate Contract [Member]
Derivative Instrument [Roll Forward]
December 31, 2015 | Contract	264
Additions | Contract	378
Maturities/terminations | Contract	(642)
December 31, 2016 | Contract	0
Embedded Derivative Financial Instruments [Member]
Derivative Instrument [Roll Forward]
December 31, 2015 | policy	96,660
Additions | policy	11,237
Maturities/terminations | policy	(7,085)
December 31, 2016 | policy	100,812
Equity Contract [Member]
Derivative, Notional Amount [Roll Forward]
December 31, 2015	$ 2,379.7
Additions	2,452.5
Maturities/terminations	(2,377.1)
December 31, 2016	2,455.1
Embedded Derivative Associated With Modified Coinsurance Agreement [Member]
Derivative, Notional Amount [Roll Forward]
Mark to market adjustment on embedded derivatives	$ 135.0