STOCK-BASED COMPENSATION (Stock Options) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock-based compensation, additional disclosures [Abstract]
Intrinsic value of stock options exercised	$ 20,200,000	$ 31,600,000	$ 1,300,000
Cash received from exercise of stock options	21,797,000	85,110,000	1,143,000
Shares available for future grants (in shares)	23,300,000
Total intrinsic value, options outstanding	217,800,000
Total intrinsic value, options exercisable	$ 140,900,000
Stock Options [Member]
Summary of stock option activity [Roll Forward]
Outstanding at beginning of period (in shares)	16,628,000	24,722,000	21,429,000
Granted (in shares)	2,345,000	1,269,000	5,495,000
Exercised (in shares)	(1,769,000)	(8,718,000)	(259,000)
Forfeited or expired (in shares)	(205,000)	(645,000)	(1,943,000)
Outstanding at end of period (in shares)	16,999,000	16,628,000	24,722,000
Exercisable at end of period (in shares)	10,669,000	9,443,000	15,529,000
Summary of stock option activity, additional disclosures [Abstract]
Price, Outstanding at beginning of period (in dollars per share)	$ 12.68	$ 11.68	$ 12.33
Price, Granted (in dollars per share)	$ 21.03	$ 13.30	$ 8.80
Price, Exercised (in dollars per share)	$ 12.32	$ 9.76	$ 4.39
Price, Forfeited or expired (in dollars per share)	$ 19.58	$ 14.93	$ 11.70
Price, Outstanding at end of period (in dollars per share)	$ 13.78	$ 12.68	$ 11.68
Price, Exercisable at end of period (in dollars per share)	$ 13.68	$ 14.94	$ 13.46
Weighted average fair value per option granted (in dollars per share)	$ 9.82	$ 6.18	$ 3.93
Stock-based compensation, additional disclosures [Abstract]
Expiration period	10 years
Stock Incentive Plan [Member]
Stock-based compensation, additional disclosures [Abstract]
Shares available for future grants (in shares)	5,100,000
Minimum [Member] | Stock Options [Member]
Stock-based compensation, additional disclosures [Abstract]
Vesting period	2 years
Maximum [Member] | Stock Options [Member]
Stock-based compensation, additional disclosures [Abstract]
Vesting period	5 years