SEGMENT INFORMATION - Reconciliation of Segment Net Sales and Pre-Tax Income to Consolidated Net Sales and Pre-Tax Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Segment Net Sales	$ 888.5	$ 821.5	$ 841.8	$ 883.5	$ 767.7	$ 739.4	$ 759.3	$ 697.3	$ 3,435.3	$ 2,963.7	$ 2,493.7
Segment Pre-tax Income									1,034.9	737.9	622.4
Unallocated amounts:
Special charges, net									(59.9)	(34.5)	0.0
Interest expense, net									(23.2)	(19.2)	(17.2)
Foreign currency									(5.4)	(0.5)	(4.8)
Consolidated pre-tax income									1,034.9	737.9	622.4
Operating segments
Segment Reporting Information [Line Items]
Segment Net Sales									3,422.1	2,944.8	2,718.0
Segment Pre-tax Income									1,920.7	1,623.7	1,378.5
Unallocated amounts:
Consolidated pre-tax income									1,920.7	1,623.7	1,378.5
Segment reconciling items
Segment Reporting Information [Line Items]
Segment Net Sales									13.2	18.9	(224.3)
Unallocated amounts:
Special charges, net									(59.9)	(34.5)
Intellectual property income (expenses), net									73.3	(32.6)	(7.0)
Interest expense, net									(2.9)	(8.4)	(9.3)
Foreign currency									(0.7)	15.8	(28.5)
Corporate items
Unallocated amounts:
Corporate items									$ (895.6)	$ (826.1)	$ (711.3)