Goodwill and Intangible Assets - Intangible categories (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022	Dec. 31, 2022
Finite And Indefinite Lived Assets By Major Class [Line Items]
Indefinite-lived intangible assets	$ 59.8		$ 59.8		$ 58.6
Definite-lived intangible assets	4,904.9		4,904.9		4,949.0
Accumulated Amortization	1,874.1		1,874.1		1,718.8
Total intangible assets	4,964.7		4,964.7		5,007.6
Intangible assets amortization expense	69.3	$ 62.4	134.7	$ 110.9
Distribution and license agreements and supply agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	95.6		95.6		94.9
Accumulated Amortization	60.7		60.7		58.1
Developed product technology, formulations, and product rights
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	476.5		476.5		484.8
Accumulated Amortization	225.1		225.1		211.8
Customer relationships and distribution networks
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	1,854.0		1,854.0		1,825.1
Accumulated Amortization	1,043.2		1,043.2		965.9
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	2,476.7		2,476.7		2,542.2
Accumulated Amortization	543.0		543.0		481.0
Non-compete agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Definite-lived intangible assets	2.1		2.1		2.0
Accumulated Amortization	2.1		2.1		2.0
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Indefinite-lived intangible assets	3.4		3.4		3.2
In-process research and development
Finite And Indefinite Lived Assets By Major Class [Line Items]
Indefinite-lived intangible assets	$ 56.4		$ 56.4		$ 55.4