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Accumulated Other Comprehensive (Loss) Income - Reclassification from OCI (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 27, 2019	Sep. 27, 2019	Jun. 28, 2019	Mar. 29, 2019	Dec. 28, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 27, 2019	Dec. 28, 2018	Dec. 29, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	$ 1,025.2	$ 1,070.2	$ 1,239.4	$ 1,154.2	$ 1,045.9	$ 1,069.5	$ 1,272.4	$ 1,106.1	$ 4,489.0	$ 4,493.9	$ 4,085.9
Cost of products sold									(4,188.4)	(4,214.1)	(3,754.3)
Interest expense									(25.4)	(23.6)	(6.4)
Selling, general and administrative expenses									(195.7)	(194.7)	$ (173.2)
Reclassification out of Accumulated Other Comprehensive Income \| Changes in Fair Value of Effective Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales									(8.1)	(5.3)
Cost of products sold									(1.5)	0.0
Interest expense									2.4	1.5
Total									(7.2)	(3.8)
Reclassification out of Accumulated Other Comprehensive Income \| Retirement Benefit Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense, net									0.5	0.8
Total									$ 0.5	$ 0.8