ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Information About Amounts Reclassified from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amounts reclassified from accumulated other comprehensive loss to affected line on Consolidated Statements of Operations
Cost of sales									$ (1,114.4)	$ (939.4)	$ (875.3)
Selling, general, and administrative expenses									(1,242.2)	(1,088.5)	(990.8)
Other (income) expense, net									0.0	0.0	(0.7)
Income before provision for income taxes									1,166.5	761.4	1,034.9
Special (gains) charges, net									0.0	(7.1)	50.2
Other (income) expense, net									8.2	4.0	(1.4)
Provision for income taxes									(119.6)	(39.2)	(451.3)
Net income	$ 280.2	$ 274.7	$ 242.3	$ 249.7	$ 7.0	$ 225.9	$ 282.7	$ 206.6	1,046.9	722.2	$ 583.6
Amount Reclassified from Accumulated Other Comprehensive Loss | Foreign Currency Translation Adjustments
Amounts reclassified from accumulated other comprehensive loss to affected line on Consolidated Statements of Operations
Other (income) expense, net									6.6	0.0
Provision for income taxes									(1.6)	0.0
Net income									5.0	0.0
Amount Reclassified from Accumulated Other Comprehensive Loss | Unrealized Gain (Loss) on Hedges
Amounts reclassified from accumulated other comprehensive loss to affected line on Consolidated Statements of Operations
Cost of sales									40.9	(17.3)
Selling, general, and administrative expenses									1.9	(2.3)
Other (income) expense, net									(1.4)	(0.5)
Income before provision for income taxes									44.2	(19.1)
Provision for income taxes									(11.0)	4.4
Net income									33.2	(14.7)
Amount Reclassified from Accumulated Other Comprehensive Loss | Gain (loss) on available-for-sale investments
Amounts reclassified from accumulated other comprehensive loss to affected line on Consolidated Statements of Operations
Other (income) expense, net									(0.4)	(2.9)
Provision for income taxes									(0.3)	0.2
Net income									(0.7)	(2.7)
Amount Reclassified from Accumulated Other Comprehensive Loss | Amortization of pension adjustments
Amounts reclassified from accumulated other comprehensive loss to affected line on Consolidated Statements of Operations
Income before provision for income taxes									(0.7)	6.7
Special (gains) charges, net									0.0	7.1
Other (income) expense, net									(0.7)	(0.4)
Provision for income taxes									0.1	(0.6)
Net income									$ (0.6)	$ 6.1