Brazilian Chemical Business - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended		12 Months Ended
		Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net Sales	[1]	$ 898.0			$ 877.4	$ 1,775.2	$ 1,726.4
Brazilian Chemical
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Plant impairment charge				$ 4.9
Sale of business			$ 4.5
Severance and other charges			$ 3.5
Net Sales								$ 22.0

[1] Intersegment sales from Consumer International to Consumer Domestic, which are not reflected in the table, were $1.3 and $1.0 for the three months ended June 30, 2017 and June 30, 2016, respectively, and were $2.7 and $2.0 for the six months ended June 30, 2017 and June 30, 2016, respectively.