SHARE-BASED COMPENSATION (Details 2) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Additional disclosures
Proceeds from exercise of stock options	$ 10,015,000	$ 23,026,000	$ 41,738,000
Stock options
Share-based compensation
Number of days average trading price as base for minimum exercise price of stock option granted	5 days
Method and assumptions on valuation of stock options
Expected stock option life (years)	4 years	4 years	4 years
Expected volatility (as a percent)	40.10%	44.90%	42.80%
Risk-free interest rate (as a percent)	1.00%	0.50%	1.40%
Stock option activity
Options outstanding at the beginning of the period (in shares)	8,506
Granted (in shares)	1,582
Exercised (in shares)	(478)
Expired or forfeited (in shares)	(983)
Options outstanding at the end of the period (in shares)	8,627	8,506
Options vested and exercisable at the end of the period (in shares)	5,174
Weighted-average exercise price
Options outstanding at the beginning of the period (in dollars per share)	$ 18.97
Granted (in dollars per share)	$ 93.60
Exercised (in dollars per share)	$ 20.76
Expired or forfeited (in dollars per share)	$ 39.74
Options outstanding at the end of the period (in dollars per share)	$ 30.19	$ 18.97
Options vested and exercisable at the end of the period (in dollars per share)	$ 11.68
Weighted-Average Remaining Contractual Term
Options outstanding at the end of the period	5 years 6 months
Options vested and exercisable at the end of the period	4 years 6 months
Aggregate Intrinsic Value
Options outstanding at the end of the period	754,356,000
Options vested and exercisable at the end of the period	547,033,000
Additional disclosures
Weighted-average grant date fair value of stock options (in dollars per share)	$ 30.47	$ 19.57	$ 13.65
Intrinsic value of stock options exercised in the period	30,400,000	25,100,000	31,700,000
Proceeds from exercise of stock options	$ 10,000,000	$ 23,000,000	$ 41,700,000
Stock options | After merger
Share-based compensation
Percentage of stock options that will vest on each of the first, second, third and fourth anniversaries from the date of grant	25.00%