Selected Financial Information Relating To Company's Segments (Parenthetical) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	May 01, 2019
Segment Reporting Information [Line Items]
Net Sales	[1]	$ 1,238.9	$ 1,165.2
Increase decrease in expenses		0.0	3.0
Selling General and Administrative Expenses
Segment Reporting Information [Line Items]
Increase decrease in expenses		19.0	27.0
Consumer International | Perl Weiss Toothpaste | Selling General and Administrative Expenses
Segment Reporting Information [Line Items]
Increase decrease in expenses			3.0
Flawless Acquisition
Segment Reporting Information [Line Items]
Business Acquisition Liabilities		79.0		$ 98.0	$ 182.0
Flawless Acquisition | Consumer Domestic
Segment Reporting Information [Line Items]
Business Acquisition Liabilities		16.1	23.0
Flawless Acquisition | Consumer International
Segment Reporting Information [Line Items]
Business Acquisition Liabilities		2.9	4.0
Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales		$ 2.6	$ 3.0

[1] Intersegment sales from Consumer International to Consumer Domestic, which are not reflected in the table, were $2.6 and $3.0 for the three months ended March 31, 2021 and March 31, 2020, respectively.