EMPLOYEE STOCK BENEFIT PLANS (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares approved | shares	25,000,000
Percentage of market price at which executive officers and key employees may be granted options to purchase common stock	100.00%
Assumptions used to calculate fair value of stock options
Expected volatility (as a percent)	26.00%	24.70%	26.30%
Risk-free interest rate (as a percent)	1.20%	1.50%	1.70%
Dividend yield (as a percent)	2.20%	1.60%	1.80%
Expected life (in years)	5 years	4 years 11 months	5 years 6 months
Stock option, Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	2,568,000	1,783,000	1,724,000	1,959,000
Granted (in shares) | shares	1,157,000	431,000	463,000
Exercised (in shares) | shares	(216,000)	(272,000)	(652,000)
Forfeited or expired (in shares) | shares	(156,000)	(100,000)	(46,000)
Vested (in shares) | shares	1,137,000
Vested and expected to vest (in shares) | shares	2,530,000
Stock option, Weighted Average Exercise Price of Shares
Balance at the beginning of the period (in dollars per share) | $ / shares	$ 75.73	$ 67.01	$ 60.12
Granted (in dollars per share) | $ / shares	73.87	102.47	82.31
Exercised (in dollars per share) | $ / shares	70.31	59.54	56.79
Forfeited or expired (in dollars per share) | $ / shares	85.89	84.74	72.55
Balance at the end of the period (in dollars per share) | $ / shares	74.73	$ 75.73	$ 67.01	$ 60.12
Vested (in dollars per share) | $ / shares	69.34
Vested and expected to vest (in dollars per share) | $ / shares	$ 74.69
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	7 years 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	5 years 4 months 24 days
Stock option, Average Remaining Contractual Term (in years)
Balance at the end of the period (in years)	7 years 3 months 18 days	7 years	7 years 3 months 18 days	7 years 4 months 24 days
Stock option, Aggregate Intrinsic Value
Outstanding options	$ 10.1	$ 16.6	$ 57.8	$ 46.3
Exercised options	2.8	$ 9.5	$ 23.5
Vested options	10.1
Vested and expected to vest options	$ 10.1
Weighted-Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 13.88	$ 20.21	$ 17.71
Cash proceeds received from options exercised	$ 15.0	$ 16.2	$ 37.0
Tax benefit realized from stock options exercised	$ 0.8	$ 3.4	$ 8.3
Performance Share Awards
Shares Granted and Earned | shares	151,000	144,000	156,000
Weighted-Average Grant- Date Fair Value (in dollars per share) | $ / shares	70.34	101.03	78.64
Shares outstanding at period end | shares	109,000	0	60,000
Percentage of plan performance assumed	100.00%
Nonvested restricted stock units, Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	699,000	497,000	488,000	423,000
Granted (in shares) | shares	384,000	205,000	235,000
Vested (in shares) | shares	(102,000)	(149,000)	(153,000)
Forfeited (in shares) | shares	(80,000)	(47,000)	(17,000)
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share) | $ / shares	$ 88.81	$ 77.21	$ 61.59
Granted (in dollars per share) | $ / shares	74.51	101.11	83.91
Vested (in dollars per share) | $ / shares	85.49	69.55	44.36
Forfeited (in dollars per share) | $ / shares	83.63	83.97	76.11
Nonvested at the end of the period (in dollars per share) | $ / shares	$ 81.93	$ 88.81	$ 77.21	$ 61.59
Allocated Share-based Compensation Expense (pre-tax)	$ 34.6	$ 26.4	$ 30.4
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	34.6	26.4	30.4
Net tax benefit related to stock-based compensation expense	$ (11.6)	(8.8)	(10.5)
Upper limit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage payout based on targets met	200.00%
Lower limit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage payout based on targets met	0.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Under one of the company's vesting schedules, percentage of stock options exercisable on each of the first through the fourth anniversaries of the grant date	25.00%
Under the second of two vesting schedules, percentage of stock options exercisable on each of the first through the third anniversaries of the grant date	33.00%
Term of awards	10 years
Stock option, Aggregate Intrinsic Value
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 9.9
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 11 months
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense (pre-tax)	$ 11.7	7.6	7.0
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	$ 11.7	7.6	7.0
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of awards	3 years
Performance share awards
Stock option, Aggregate Intrinsic Value
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 2.3
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 6 months
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense (pre-tax)	$ 6.8	5.8	12.7
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	6.8	5.8	12.7
Restricted stock units
Stock option, Aggregate Intrinsic Value
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 31.3
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	2 years 5 months
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense (pre-tax)	$ 16.1	13.0	10.7
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	$ 16.1	$ 13.0	$ 10.7
Restricted stock units | Upper limit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of awards	4 years
Restricted stock units | Lower limit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of awards	1 year