Contingencies (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Contingencies
Proceeds from legal settlements	$ 62.2
Recovery of direct costs			$ 47.2
Environmental liabilities	$ 20.9	$ 1.9	23.3	$ 2.2
Huntsville Site
Contingencies
Environmental remediation expense			8.6
Project expenditures, low estimate			5.8
Project expenditures, high estimate			17.5
Norco Site | Remediation project management regulatory oversight and investigative and feasibility studies
Contingencies
Environmental remediation expense			82.2
Project expenditures, low estimate			23.0
Project expenditures, high estimate			$ 39.3