Selected Financial Information Relating To Company's Segments (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net Sales		$ 896.0	$ 870.7	$ 877.4	$ 849.0	$ 873.6	$ 861.8	$ 847.1	$ 812.3	$ 3,493.1	$ 3,394.8	$ 3,297.6
Gross profit		408.0	395.6	408.0	379.0	397.4	385.8	373.1	355.5	1,590.6	1,511.8	1,452.9
Marketing Expenses										427.2	417.5	416.9
Selling, General and Administrative Expenses										439.2	420.1	394.8
Income from Operations		173.4	$ 196.0	$ 175.3	$ 179.5	169.2	$ 190.6	$ 142.3	$ 172.1	724.2	674.2	641.2
Equity in Earnings (Losses) of Affiliates										9.2	(5.8)	11.6
Income Before Income Taxes										705.9	635.4	624.9
Identifiable Assets		4,354.1				4,256.9				4,354.1	4,256.9	4,359.2
Capital Expenditures										49.8	61.8	70.5
Depreciation & Amortization										107.6	101.0	91.2
Operating Segments | Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales										2,677.8	2,581.6	2,471.6
Gross profit										1,308.8	1,215.7	1,160.9
Marketing Expenses										345.2	336.5	333.2
Selling, General and Administrative Expenses										350.7	326.2	302.0
Income from Operations										612.9	553.0	525.7
Equity in Earnings (Losses) of Affiliates										0.0	0.0	0.0
Income Before Income Taxes										590.6	529.4	502.8
Identifiable Assets		3,374.4				3,449.9				3,374.4	3,449.9	3,502.9
Capital Expenditures										34.9	51.5	59.2
Depreciation & Amortization										87.8	82.6	76.7
Operating Segments | Consumer International
Segment Reporting Information [Line Items]
Net Sales										525.2	501.0	535.2
Gross profit										235.4	226.8	242.1
Marketing Expenses										78.2	76.6	80.5
Selling, General and Administrative Expenses										89.0	93.3	93.9
Income from Operations										68.2	56.9	67.6
Equity in Earnings (Losses) of Affiliates										0.0	0.0	0.0
Income Before Income Taxes										66.3	54.5	64.7
Identifiable Assets		714.5				521.0				714.5	521.0	619.8
Capital Expenditures										8.8	7.2	8.4
Depreciation & Amortization										9.5	7.9	7.6
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net Sales										290.1	312.2	290.8
Gross profit										83.0	101.9	76.6
Marketing Expenses										3.8	4.4	3.2
Selling, General and Administrative Expenses										36.1	33.2	25.6
Income from Operations										43.1	64.3	47.9
Equity in Earnings (Losses) of Affiliates										0.0	0.0	0.0
Income Before Income Taxes										39.8	57.3	45.8
Identifiable Assets		181.3				206.5				181.3	206.5	135.1
Capital Expenditures										6.1	3.1	2.9
Depreciation & Amortization										8.6	8.5	5.2
Corporate
Segment Reporting Information [Line Items]
Net Sales	[1]									0.0	0.0	0.0
Gross profit	[1]									(36.6)	(32.6)	(26.7)
Marketing Expenses	[1]									0.0	0.0	0.0
Selling, General and Administrative Expenses	[1]									(36.6)	(32.6)	(26.7)
Income from Operations	[1]									0.0	0.0	0.0
Equity in Earnings (Losses) of Affiliates	[1]									9.2	(5.8)	11.6
Income Before Income Taxes	[1]									9.2	(5.8)	11.6
Identifiable Assets	[1]	$ 83.9				$ 79.5				83.9	79.5	101.4
Capital Expenditures	[1]									0.0	0.0	0.0
Depreciation & Amortization	[1]									$ 1.7	$ 2.0	$ 1.7

[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 $36.6, $32.6, and $26.7 for 2016, 2015 and 2014, respectively. (B) Equity in earnings (loss) of affiliates from Armand and ArmaKleen for the year ended December 31, 2016 and Armand, ArmaKleen and Natronx for the years ended December 31, 2015 and 2014. (C) Corporate assets include notes receivable, domestic deferred income taxes, deferred compensation investments and the Company's investment in unconsolidated affiliates.