CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Income Statement [Abstract]
Net Sales		$ 3,394.8		$ 3,297.6		$ 3,194.3
Cost of sales		1,883.0		1,844.7		1,756.3
Gross Profit		1,511.8		1,452.9		1,438.0
Marketing expenses		417.5		416.9		399.8
Selling, general and administrative expenses		420.1		394.8		416.0
Income from Operations		674.2	[1]	641.2	[2]	622.2
Equity in earnings (losses) of affiliates		(5.8)		11.6		2.8
Investment earnings	[3]	1.5		2.3		2.6
Other income (expense), net	[3]	(4.0)		(2.8)		(2.1)
Interest expense	[3]	(30.5)		(27.4)		(27.7)
Income before Income Taxes		635.4		624.9		597.8
Income taxes		225.0		211.0		203.4
Net Income		$ 410.4		$ 413.9		$ 394.4
Weighted average shares outstanding - Basic		131.1		135.1		138.6
Weighted average shares outstanding - Diluted		133.6		137.5		141.2
Net income per share - Basic		$ 3.13	[1],[4]	$ 3.06		$ 2.85
Net income per share - Diluted		3.07	[1],[4]	3.01		2.79
Cash dividends per share		$ 1.34		$ 1.24		$ 1.12

[1] The second quarter of 2015 Income from Operations includes an $8.9 pre-tax charge or $0.05 per share to terminate an international defined benefit pension plan.

[2] The second quarter of 2014 Income from Operations includes $5.0 of intangible asset impairment charges.

[3] In determining Income before Income Taxes, interest expense, investment earnings, and other income, net, were allocated to the segments based upon each segment's relative Income from Operations.

[4] The second quarter of 2015 Net Income includes a $17.0 or $0.13 per share impairment charge to write-off the remaining investment in Natronx.