STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2015

Stock-Based Compensation Cost and Associated Tax Benefit

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Stock-based compensation cost	$	22.1	$	19.3	$	66.5	$	59.9
Tax benefit	$	7.2	$	6.2	$	21.8	$	19.0

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

	Nine Months Ended
	September 30,
Exercise of stock options:	2015		2014
Proceeds from stock option exercises	$	68.0	$	131.5
Aggregate intrinsic value	$	64.7	$	107.7
Tax benefit realized upon exercise	$	23.0	$	38.7
Number of shares exercised		1.3		2.8
	Nine Months Ended
	September 30,
Vesting of restricted stock:	2015		2014
Fair value of shares vested	$	111.3	$	92.3
Tax benefit realized upon vesting	$	35.7	$	31.6
Number of shares vested		1.1		1.2
	Nine Months Ended
	September 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	$	14.6
Number of shares vested		0.5		0.5