Goodwill and Intangible Assets - Intangible categories (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Finite And Indefinite Lived Assets By Major Class [Line Items]
Indefinite-lived intangible assets	$ 5.2		$ 5.3
Definite-lived intangible assets	4,913.0		4,997.0
Accumulated Amortization	2,042.7		2,016.2
Total intangible assets	4,918.2		5,002.3
Intangible assets amortization expense	58.4	$ 65.4
Distribution and license agreements and supply agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	88.7		90.8
Accumulated Amortization	56.3		57.5
Developed product technology, formulations, and product rights
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	528.2		534.0
Accumulated Amortization	243.9		238.4
Customer relationships and distribution networks
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	1,840.7		1,868.1
Accumulated Amortization	1,112.8		1,108.9
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	2,453.3		2,502.0
Accumulated Amortization	627.6		609.3
Non-compete agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	2.1		2.1
Accumulated Amortization	2.1		2.1
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Indefinite-lived intangible assets	3.3		3.4
In-process research and development
Finite And Indefinite Lived Assets By Major Class [Line Items]
Indefinite-lived intangible assets	$ 1.9		$ 1.9