Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Selected Quarterly Financial Information [Abstract]
Net Sales	$ 1,074.4	$ 1,037.6	$ 1,027.9	$ 1,006.0	$ 1,033.1	$ 967.9	$ 898.0	$ 877.2	$ 4,145.9	$ 3,776.2	$ 3,493.1
Gross Profit	474.3	460.1	454.9	451.5	481.4	438.5	410.4	399.3	1,840.8	1,729.6	1,590.6
Income from Operations	193.4	204.2	173.8	220.3	214.7	198.7	123.2	196.1	791.7	732.7	724.2
Net Income	$ 142.8	$ 146.3	$ 121.7	$ 157.8	$ 405.6	$ 133.4	$ 72.9	$ 131.5	$ 568.6	$ 743.4	$ 459.0
Net Income per Share-Basic	$ 0.58	$ 0.60	$ 0.50	$ 0.64	$ 1.63	$ 0.53	$ 0.29	$ 0.52	$ 2.32	$ 2.97	$ 1.78
Net Income per Share-Diluted	$ 0.57	$ 0.58	$ 0.49	$ 0.63	$ 1.60	$ 0.52	$ 0.29	$ 0.51	$ 2.27	$ 2.90	$ 1.75