Selected Financial Information Relating To Company's Segments (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Net Sales	[1]	$ 1,271.1	$ 1,194.3	$ 2,510.0	$ 2,359.5
Income before Income Taxes	[2]	287.3	236.0	578.3	535.4
Operating Segments | Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales	[1]	959.7	931.1	1,902.1	1,822.1
Income before Income Taxes	[2]	234.2	200.4	475.1	451.2
Operating Segments | Consumer International
Segment Reporting Information [Line Items]
Net Sales	[1]	226.8	187.5	443.2	386.1
Income before Income Taxes	[2]	38.2	23.4	76.4	61.6
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net Sales	[1]	84.6	75.7	164.7	151.3
Income before Income Taxes	[2]	12.1	10.2	21.4	19.0
Corporate
Segment Reporting Information [Line Items]
Net Sales	[1],[3]	0.0	0.0	0.0	0.0
Income before Income Taxes	[2],[3]	$ 2.8	$ 2.0	$ 5.4	$ 3.6

[1] Intersegment sales from Consumer International to Consumer Domestic, which are not reflected in the table, were $2.6 and $2.8 for the three months ended June 30, 2021 and June 30, 2020, respectively, and were $5.2 and $5.8 for the six months ended June 30, 2021 and June 30, 2020, respectively.

[2] In determining income before income taxes, interest expense, investment earnings and certain aspects of other income and expense were allocated among segments based upon each segment’s relative income from operations.

[3] Corporate segment consists of equity in earnings of affiliates from Armand and ArmaKleen for the three and six months ended June 30, 2021 and June 30, 2020.