STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2015

Stock-Based Compensation Cost and Associated Tax Benefit

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2015		2014		2015		2014
Stock-based compensation cost	$	21.7	$	20.3	$	44.4	$	40.6
Tax benefit	$	6.7	$	6.5	$	14.6	$	12.8

Weighted Average Assumptions used in Determining Fair Value for Options Granted

Expected dividend yield	1.39%
Expected stock volatility	39.4%
Risk-free interest rate	1.88%
Expected holding period	6.9 years
Grant date fair value	$36.08

Stock Option Exercises and Restricted Stock Vesting

	Six Months Ended
	June 30,
Exercise of stock options:	2015		2014
Proceeds from stock option exercises	$	51.9	$	89.0
Aggregate intrinsic value	$	49.9	$	69.2
Tax benefit realized upon exercise	$	17.9	$	25.3
Number of shares exercised		1.0		2.0
	Six Months Ended
	June 30,
Vesting of restricted stock:	2015		2014
Fair value of shares vested	$	110.8	$	91.9
Tax benefit realized upon vesting	$	35.6	$	32.0
Number of shares vested		1.1		1.2
	Six Months Ended
	June 30,
Vesting of performance-based restricted stock:	2015		2014
Fair value of shares vested	$	43.1	$	38.0
Tax benefit realized upon vesting	$	15.6	$	14.8
Number of shares vested		0.5		0.5