TREASURY STOCK (Narrative) (Details) - USD ($)				12 Months Ended
	Dec. 31, 2016	Dec. 15, 2016	Oct. 25, 2016	Dec. 31, 2016	Dec. 31, 2015
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Treasury stock, shares, retired (in shares)			17,800,000
Treasury stock, aggregate cost	$ 123,051,000			$ 123,051,000	$ 367,121,000
Stock repurchase program, authorized amount (up to)			$ 150,000,000.0
Amount available for share repurchase under this latest authorization	$ 150,000,000.0			$ 150,000,000.0
Common stock from the exercise of call option with hedge participants (in shares)		2,900,000		2,946,000
Price per share (in dollars per share)	$ 41.78
Common stock from the exercise of call option with hedge participants, value				$ 123,100,000
Stock repurchased during period (in shares)				0	0