Segment Net Sales and Income Before Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Segment Reporting Information [Line Items]
Net Sales	$ 782.0	[1]	$ 779.3	[1]
Income Before Income Taxes	156.7	[2]	163.2	[2]
Operating Segments | Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales	593.3	[1]	591.0	[1]
Income Before Income Taxes	126.9	[2]	134.0	[2]
Operating Segments | Consumer International
Segment Reporting Information [Line Items]
Net Sales	123.8	[1]	129.3	[1]
Income Before Income Taxes	18.2	[2]	21.6	[2]
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net Sales	64.9	[1]	59.0	[1]
Income Before Income Taxes	10.0	[2]	7.0	[2]
Corporate
Segment Reporting Information [Line Items]
Net Sales	0	[1],[3]	0	[1],[3]
Income Before Income Taxes	$ 1.6	[2],[3]	$ 0.6	[2],[3]

[1] Intersegment sales from Consumer International to Consumer Domestic were $0.2 and $0.9 for the three months ended March 31, 2014 and March 31, 2013, respectively.

[2] In determining Income before Income Taxes, interest expense, investment earnings and other income (expense) were allocated among segments based upon each segment's relative operating profit.

[3] Corporate consists of equity in earnings (losses) of affiliates from Armand, ArmaKleen and Natronx.