Segments - Selected Financial Information Relating To Company's Segments (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Net Sales		$ 1,511.2	$ 1,454.2	$ 3,014.5	$ 2,884.0
Income before Income Taxes		320.5	269.4	604.6	538.2
Operating Segments
Segment Reporting Information [Line Items]
Net Sales	[1]	1,511.2	1,454.2	3,014.5	2,884.0
Income before Income Taxes	[2]	320.5	269.4	604.6	538.2
Operating Segments | Consumer Domestic
Segment Reporting Information [Line Items]
Net Sales	[1]	1,170.6	1,128.2	2,335.8	2,245.1
Income before Income Taxes	[2]	273.2	230.7	512.4	459.4
Operating Segments | Consumer International
Segment Reporting Information [Line Items]
Net Sales	[1]	263.7	241.9	518.7	472.5
Income before Income Taxes	[2]	32.9	27.5	65.9	56.4
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net Sales	[1]	76.9	84.1	160.0	166.4
Income before Income Taxes	[2]	11.3	9.2	22.1	16.0
Corporate
Segment Reporting Information [Line Items]
Net Sales	[1],[3]	0.0	0.0	0.0	0.0
Income before Income Taxes	[2],[3]	$ 3.1	$ 2.0	$ 4.2	$ 6.4

[1] Intersegment sales from Consumer International to Consumer Domestic, which are not reflected in the table, were $7.0 and $3.4 for the three months ended June 30, 2024 and June 30, 2023, respectively, and were $12.6 and $7.0 for the six months ended June 30, 2024 and June 30, 2023, 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] The Corporate segment consists of equity in earnings of affiliates from Armand and ArmaKleen for the three and six months ended June 30, 2024 and June 30, 2023.