EMPLOYEE STOCK BENEFIT PLANS (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Stock Options
EMPLOYEE STOCK BENEFIT PLANS
Shares Granted	0.5
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 15.02
Outstanding (in shares)	2.3
Unrecognized Compensation Expense	$ 12.2
Expected Weighted-Average Period to be Recognized (in years)	2 years 4 months 26 days
Performance Share Awards
EMPLOYEE STOCK BENEFIT PLANS
Shares Granted	0.2
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 72.14
Outstanding (in shares)	0.4
Unrecognized Compensation Expense	19.7
Expected Weighted-Average Period to be Recognized (in years)	1 year 7 months 9 days
Restricted stock units
EMPLOYEE STOCK BENEFIT PLANS
Shares Granted	0.1
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 74.72
Outstanding (in shares)	0.5
Unrecognized Compensation Expense	$ 21.2
Expected Weighted-Average Period to be Recognized (in years)	2 years 8 months 15 days