Selected Financial Information Relating To Company's Segments (Parenthetical) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Selling, general and administrative expenses		$ 420.1	$ 394.8	$ 416.0
Corporate
Segment Reporting Information [Line Items]
Selling, general and administrative expenses	[1]	(32.6)	(26.7)	(31.3)
Corporate | Cost of Sales
Segment Reporting Information [Line Items]
Selling, general and administrative expenses		$ 32.6	$ 26.7	$ 31.3

[1] The Corporate segment reflects the following:(A)The administrative costs of the production planning and logistics functions are included in segment Selling, General and Administrative expenses but are elements of Cost of Sales in the Company’s Consolidated Statements of Income. Such amounts were $32.6, $26.7, and $31.3 for 2015, 2014 and 2013, respectively.(B)Equity in earnings (loss) of affiliates from Armand, ArmaKleen and Natronx.(C)Corporate assets include notes receivable, domestic deferred income taxes, deferred compensation investments and the Company's investment in unconsolidated affiliates.