STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2016

Stock-Based Compensation Cost and Associated Tax Benefit

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2016		2015		2016		2015
Stock-based compensation cost	$	23.9	$	22.1	$	72.8	$	66.5
Tax benefit	$	7.8	$	7.2	$	23.7	$	21.8

Weighted Average Assumptions used in Determining Fair Value for Options Granted

Expected dividend yield	1.83%
Expected stock volatility	32.3%
Risk-free interest rate	1.60%
Expected holding period	6.8 yrs
Grant date fair value	$22.98

Stock Option Exercises and Restricted Stock Vesting

	Nine Months Ended
	September 30,
Exercise of stock options:	2016		2015
Proceeds from stock option exercises	$	67.7	$	68.0
Aggregate intrinsic value	$	67.8	$	64.7
Tax benefit realized upon exercise	$	23.1	$	23.0
Number of shares exercised		1.4		1.3
	Nine Months Ended
	September 30,
Vesting of restricted stock:	2016		2015
Fair value of shares vested	$	92.8	$	111.3
Tax benefit realized upon vesting	$	29.5	$	35.7
Number of shares vested		1.0		1.1
	Nine Months Ended
	September 30,
Vesting of performance-based restricted stock:	2016		2015
Fair value of shares vested	$	23.6	$	43.1
Tax benefit realized upon vesting	$	8.4	$	15.6
Number of shares vested		0.2		0.5