STOCK-BASED COMPENSATION - Components of Stock Based Compensation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Options:
Total stock-based compensation			$ 19.2	$ 20.2
Tax benefits on stock-based compensation expense	$ 1.9	$ 3.5	3.9	14.2
To be settled with stock
Options:
Total stock-based compensation expense	6.7	6.1	12.7	11.3
Employee contributions for above stock plans	3.8	3.8	6.5	8.9
Total stock-based compensation	10.5	9.9	19.2	20.2
Tax benefits on stock-based compensation expense	1.6	2.2	3.0	4.1
To be settled with stock | Tax benefits on stock-based compensation payments
Options:
Tax benefits on stock-based compensation expense	0.3	1.3	0.9	10.1
To be settled with stock | Stock-based retirement plans contributions
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Total stock-based compensation expense	2.2	2.2	4.1	3.6
To be settled with stock | Deferred Stock Compensation Program
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Total stock-based compensation expense	0.4	0.5	0.9	1.2
To be settled with stock | Stock-based retirement plans
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Total stock-based compensation expense	0.3	0.4	0.5	0.7
To be settled with stock | Discount Stock Plan
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Total stock-based compensation expense	0.3	0.3	0.6	0.6
To be settled with stock | Performance Stock Unit (PSU) awards
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Total stock-based compensation expense	1.0	1.4	1.9	2.7
To be settled with stock | Performance Stock Unit (PSU) awards | 2018 PSU - TSR based
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Total stock-based compensation expense	0.3	0.0	0.6	0.0
To be settled with stock | Performance Stock Unit (PSU) awards | 2018 PSU - EBIT CAGR based
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Total stock-based compensation expense	0.9	0.0	1.5	0.0
To be settled with stock | Restricted Stock Unit awards
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Total stock-based compensation expense	0.5	0.6	1.0	1.2
To be settled with stock | Profitable Growth Incentive awards
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Total stock-based compensation expense	0.7	0.4	1.2	0.8
To be settled with stock | Other, primarily non-employee directors restricted stock
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Total stock-based compensation expense	0.1	0.3	0.4	0.5
To be settled in cash
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Total stock-based compensation expense	2.3	2.6	3.9	3.7
To be settled in cash | Stock-based retirement plans contributions
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Total stock-based compensation expense	0.3	0.3	0.5	0.7
To be settled in cash | Deferred Stock Compensation Program
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Total stock-based compensation expense	0.0	0.0	0.0	0.0
To be settled in cash | Stock-based retirement plans
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Total stock-based compensation expense	0.0	0.0	0.0	0.0
To be settled in cash | Discount Stock Plan
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Total stock-based compensation expense	0.0	0.0	0.0	0.0
To be settled in cash | Performance Stock Unit (PSU) awards
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Total stock-based compensation expense	0.1	1.9	0.0	2.1
To be settled in cash | Performance Stock Unit (PSU) awards | 2018 PSU - TSR based
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Total stock-based compensation expense	0.3	0.0	0.6	0.0
To be settled in cash | Performance Stock Unit (PSU) awards | 2018 PSU - EBIT CAGR based
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Total stock-based compensation expense	0.9	0.0	1.6	0.0
To be settled in cash | Restricted Stock Unit awards
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Total stock-based compensation expense	0.0	0.0	0.0	0.0
To be settled in cash | Profitable Growth Incentive awards
Options:
Total stock-based compensation expense	0.7	0.4	1.2	0.9
To be settled in cash | Other, primarily non-employee directors restricted stock
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Total stock-based compensation expense	$ 0.0	$ 0.0	$ 0.0	$ 0.0