Selected Financial Information Relating To Company's Segments (Details) - USD ($) $ in Millions		3 Months Ended																12 Months Ended
		Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Segment Reporting Information [Line Items]
Net Sales		$ 873.6		$ 861.8		$ 847.1		$ 812.3		$ 865.5		$ 841.8		$ 808.3		$ 782.0		$ 3,394.8		$ 3,297.6		$ 3,194.3
Gross profit		397.4		385.8		373.1		355.5		389.6		367.5		356.4		339.4		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		169.2	[1]	$ 190.6	[1]	$ 142.3	[1]	$ 172.1	[1]	163.8	[2]	$ 177.2	[2]	$ 138.2	[2]	$ 162.0	[2]	674.2	[1]	641.2	[2]	622.2
Equity in Earnings (Losses) of Affiliates																		(5.8)		11.6		2.8
Interest Expense	[3]																	30.5		27.4		27.7
Investment Earnings	[3]																	1.5		2.3		2.6
Other Income (Expense), net	[3]																	(4.0)		(2.8)		(2.1)
Income Before Income Taxes																		635.4		624.9		597.8
Identifiable Assets	[4]	4,256.9								4,359.2								4,256.9		4,359.2		4,237.3
Capital Expenditures																		61.8		70.5		67.1
Depreciation & Amortization																		101.0		91.2		90.5
Operating Segments | Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales																		2,581.6		2,471.6		2,413.5
Gross profit																		1,215.7		1,160.9		1,163.0
Marketing Expenses																		336.5		333.2		320.5
Selling, General and Administrative Expenses																		326.2		302.0		318.6
Income from Operations																		553.0		525.7		524.0
Equity in Earnings (Losses) of Affiliates																		0.0		0.0		0.0
Interest Expense	[3]																	25.0		22.5		23.4
Investment Earnings	[3]																	1.2		1.9		2.2
Other Income (Expense), net	[3]																	0.2		(2.3)		(1.8)
Income Before Income Taxes																		529.4		502.8		501.0
Identifiable Assets	[4]	3,449.9								3,502.9								3,449.9		3,502.9		3,407.4
Capital Expenditures																		51.5		59.2		53.6
Depreciation & Amortization																		82.6		76.7		77.3
Operating Segments | Consumer International
Segment Reporting Information [Line Items]
Net Sales																		501.0		535.2		532.8
Gross profit																		226.8		242.1		243.0
Marketing Expenses																		76.6		80.5		76.6
Selling, General and Administrative Expenses																		93.3		93.9		98.8
Income from Operations																		56.9		67.6		67.4
Equity in Earnings (Losses) of Affiliates																		0.0		0.0		0.0
Interest Expense	[3]																	2.5		2.9		3.0
Investment Earnings	[3]																	0.1		0.2		0.3
Other Income (Expense), net	[3]																	0.0		(0.3)		(0.2)
Income Before Income Taxes																		54.5		64.7		64.5
Identifiable Assets	[4]	521.0								619.8								521.0		619.8		600.9
Capital Expenditures																		7.2		8.4		10.3
Depreciation & Amortization																		7.9		7.6		6.1
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net Sales																		312.2		290.8		248.0
Gross profit																		101.9		76.6		63.3
Marketing Expenses																		4.4		3.2		2.7
Selling, General and Administrative Expenses																		33.2		25.6		29.9
Income from Operations																		64.3		47.9		30.8
Equity in Earnings (Losses) of Affiliates																		0.0		0.0		0.0
Interest Expense	[3]																	3.0		2.0		1.3
Investment Earnings	[3]																	0.2		0.2		0.1
Other Income (Expense), net	[3]																	(4.2)		(0.2)		(0.1)
Income Before Income Taxes																		57.3		45.8		29.5
Identifiable Assets	[4]	206.5								135.1								206.5		135.1		140.6
Capital Expenditures																		3.1		2.9		3.2
Depreciation & Amortization																		8.5		5.2		5.4
Corporate
Segment Reporting Information [Line Items]
Net Sales	[5]																	0.0		0.0		0.0
Gross profit	[5]																	(32.6)		(26.7)		(31.3)
Marketing Expenses	[5]																	0.0		0.0		0.0
Selling, General and Administrative Expenses	[5]																	(32.6)		(26.7)		(31.3)
Income from Operations	[5]																	0.0		0.0		0.0
Equity in Earnings (Losses) of Affiliates	[5]																	(5.8)		11.6		2.8
Interest Expense	[3],[5]																	0.0		0.0		0.0
Investment Earnings	[3],[5]																	0.0		0.0		0.0
Other Income (Expense), net	[3],[5]																	0.0		0.0		0.0
Income Before Income Taxes	[5]																	(5.8)		11.6		2.8
Identifiable Assets	[4],[5]	$ 79.5								$ 101.4								79.5		101.4		88.4
Capital Expenditures	[5]																	0.0		0.0		0.0
Depreciation & Amortization	[5]																	$ 2.0		$ 1.7		$ 1.7

[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] Identifiable Assets have been retrospectively adjusted to reflect new accounting guidance adopted during the fourth quarter of 2015. See Note 1 for further details.

[5] 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.