Fair Values of Net Assets Acquired (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 24, 2021
Business Acquisition [Line Items]
Goodwill	$ 2,431.5	$ 2,426.8	$ 2,274.5
Business acquisition liabilities - long-term				$ (14.0)
Cash purchase price (net of cash acquired)	546.8			556.0
TheraBreath Acquisition
Business Acquisition [Line Items]
Accounts receivable				11.3
Inventory				12.9
Trade name				487.0
Other intangible assets				30.1
Goodwill				43.7
Accounts payable and accrued expenses				(15.0)
Business acquisition liabilities				(14.0)
Cash purchase price (net of cash acquired)				$ 556.0
Hero acquisition
Business Acquisition [Line Items]
Accounts receivable	19.5
Inventory	25.4
Other current assets	1.2
Property, plant and equipment	0.4
Trade name	400.0
Other intangible assets	71.9
Goodwill	156.1
Accounts payable and accrued expenses	(1.1)
Deferred and Other Long-term Liabilities	(1.4)
Deferred income taxes	(117.2)
Business acquisition liabilities - long-term	(8.0)
Cash purchase price (net of cash acquired)	$ 546.8