Segment Net Sales and Income Before Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Segment Reporting Information [Line Items]
Net Sales	$ 725.2	[1]	$ 701.0	[1]	$ 2,112.2	[1]	$ 2,018.2	[1]
Income Before Income Taxes	146.0	[2]	126.0	[2]	412.3	[2]	376.6	[2]
Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales	530.4	[1]	506.1	[1]	1,547.5	[1]	1,459.5	[1]
Income Before Income Taxes	116.6	[2]	99.6	[2]	324.9	[2]	298.5	[2]
Consumer International
Segment Reporting Information [Line Items]
Net Sales	131.1	[1]	128.5	[1]	373.8	[1]	364.1	[1]
Income Before Income Taxes	16.0	[2]	14.7	[2]	52.6	[2]	47.3	[2]
SPD
Segment Reporting Information [Line Items]
Net Sales	63.7	[1]	66.4	[1]	190.9	[1]	194.6	[1]
Income Before Income Taxes	11.0	[2]	8.8	[2]	27.5	[2]	22.6	[2]
Corporate
Segment Reporting Information [Line Items]
Net Sales	0	[1]	0	[1]	0	[1]	0	[1]
Income Before Income Taxes	$ 2.4	[2]	$ 2.9	[2]	$ 7.3	[2]	$ 8.2	[2]

[1] Intersegment sales from Consumer International to Consumer Domestic were $0.1 million and $1.2 million for the quarters ended September 30, 2012 and September 30, 2011, respectively, and were $1.9 million and $3.7 million for the nine months ended September 30, 2012 and September 30, 2011, respectively.

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