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Postretirement Health Care Plans - Net Periodic Postretirement Health Care Cost (Details) - Postretirement Health Coverage - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Postretirement Health Care Plans [Line Items]
Interest cost	$ 0.6	$ 0.3	$ 1.1	$ 0.6
Expected return on plan assets	(0.2)	(0.1)	(0.4)	(0.3)
Amortization of unrecognized gain	(0.3)	0.0	(0.6)	0.0
Net periodic (pension benefit) postretirement healthcare cost	$ 0.1	$ 0.2	$ 0.1	$ 0.3

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Postretirement Health Care Plans [Line Items]

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Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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