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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Cash Flow Hedge Effects on Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments, Gain (Loss)
Cost of sales	$ (304.0)	$ (246.2)	$ (535.8)	$ (479.8)
Selling, general, and administrative expenses	(308.5)	(274.9)	(588.8)	(530.9)
Other (income) expense, net	(1.4)	1.1	(3.2)	(2.0)
Foreign currency contracts \| Cost of sales
Gain (loss) on fair value hedging relationships:
Hedged items	0.0		0.0
Amount excluded from effectiveness testing recognized in earnings based on an amortization approach	0.0		0.0
Gain (loss) on cash flow hedging relationships:
Amount of gain (loss) reclassified from accumulated OCI into income	11.3	(12.7)	18.9	(14.2)
Foreign currency contracts \| Cost of sales \| Derivatives designated as hedging instruments
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	0.0		0.0
Foreign currency contracts \| Selling, general, and administrative expenses
Gain (loss) on fair value hedging relationships:
Hedged items	0.0		0.0
Amount excluded from effectiveness testing recognized in earnings based on an amortization approach	0.0		0.0
Gain (loss) on cash flow hedging relationships:
Amount of gain (loss) reclassified from accumulated OCI into income	0.5	$ (1.0)	0.8	$ (2.1)
Foreign currency contracts \| Selling, general, and administrative expenses \| Derivatives designated as hedging instruments
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	0.0		0.0
Foreign currency contracts \| Other (Income)Expense, net
Gain (loss) on fair value hedging relationships:
Hedged items	4.5		6.3
Amount excluded from effectiveness testing recognized in earnings based on an amortization approach	1.2		2.1
Gain (loss) on cash flow hedging relationships:
Amount of gain (loss) reclassified from accumulated OCI into income	0.0		0.0
Foreign currency contracts \| Other (Income)Expense, net \| Derivatives designated as hedging instruments
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	$ (4.5)		$ (6.3)