Fair Values of Net Assets Acquired (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Business Acquisition [Line Items]
Other current assets	$ 49.5	$ 57.0
Goodwill	2,430.3	2,426.8
Cash purchase price (net of cash acquired)	546.8
Zicam Acquisition
Business Acquisition [Line Items]
Goodwill		$ 2,426.8
THERABREATH
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Total	8.0		$ 14.0
Inventory	25.4		12.9
Other current assets	1.2
Accounts receivable	19.5		11.3
Property, plant and equipment	0.4
Trade name	400.0		487.0
Other intangible assets	71.9		30.1
Goodwill	156.1		43.7
Accounts payable and accrued expenses	(1.1)		(15.0)
Liabilities, Other than Long-Term Debt, Noncurrent, Total	1.4
Deferred income taxes	(117.2)
Long-term liabilities	(8.0)		(14.0)
Cash purchase price (net of cash acquired)	$ 546.8		$ 556.0