Selected Financial Information Relating To Company's Segments (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2021		Sep. 30, 2020		Sep. 30, 2021		Sep. 30, 2020
Segment Reporting Information [Line Items]
Net Sales	[1]	$ 1,311.4		$ 1,241.0		$ 3,821.4		$ 3,600.5
Income before Income Taxes	[2]	289.3	[3]	261.5	[4]	867.6	[3]	796.9	[4]
Operating Segments | Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales	[1]	998.1		954.6		2,900.2		2,776.7
Income before Income Taxes	[2]	238.6	[3]	220.6	[4]	713.7	[3]	671.8	[4]
Operating Segments | Consumer International
Segment Reporting Information [Line Items]
Net Sales	[1]	227.0		213.6		670.2		599.7
Income before Income Taxes	[2]	34.5	[3]	32.4	[4]	110.9	[3]	94.0	[4]
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net Sales	[1]	86.3		72.8		251.0		224.1
Income before Income Taxes	[2]	14.2	[3]	6.6	[4]	35.6	[3]	25.6	[4]
Corporate
Segment Reporting Information [Line Items]
Net Sales	[1],[5]	0.0		0.0		0.0		0.0
Income before Income Taxes	[2],[5]	$ 2.0	[3]	$ 1.9	[4]	$ 7.4	[3]	$ 5.5	[4]

[1] Intersegment sales from Consumer International to Consumer Domestic, which are not reflected in the table, were $2.6 and $3.3 for the three months ended September 30, 2021 and September 30, 2020, respectively, and were $7.8 and $9.1 for the nine months ended September 30, 2021 and September 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] Results for the three months ended September 30, 2021 include a $41.0 reduction in SG&A expenses to adjust the Flawless business acquisition liability, of which $34.8 was recorded to Consumer Domestic and $6.2 was recorded to Consumer International.  Results for the nine months ended September 30, 2021 include a $98.0 reduction in SG&A expenses to adjust the Flawless business acquisition liability, of which $83.2 was recorded to Consumer Domestic and $14.8 was recorded to Consumer International.

[4] Results for the three months ended September 30, 2020 include a $51.0 reduction in SG&A expenses to adjust the Flawless business acquisition liability, of which $43.3 was recorded to Consumer Domestic and $7.7 was recorded to Consumer International.  Results for the nine months ended September 30, 2020 include a $72.0 reduction in SG&A expenses to adjust the Flawless business acquisition liability, of which $61.2 was recorded to Consumer Domestic and $10.8 was recorded to Consumer International.  In the first quarter of 2020, the Company sold its PERL WEISS® toothpaste brand in Germany resulting in a reduction in SG&A expenses of $3.0 recorded in Consumer International.

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