Accumulated Other Comprehensive (Loss) Income - Reclassification from OCI (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 28, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 29, 2017	Sep. 29, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 28, 2018	Dec. 29, 2017	Dec. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	$ 1,045.9	$ 1,069.5	$ 1,272.4	$ 1,106.1	$ 953.7	$ 952.7	$ 1,147.1	$ 1,032.4	$ 4,493.9	$ 4,085.9	$ 4,011.5
Cost of products sold									(4,214.1)	(3,754.3)	(3,550.1)
Interest expense									(23.6)	(6.4)	(4.1)
Selling, general and administrative expenses									(194.7)	(173.2)	$ (187.4)
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									(5.3)	1.2
Cost of products sold									0.0	(0.3)
Interest expense									1.5	0.0
Total									(3.8)	0.9
Reclassification out of Accumulated Other Comprehensive Income | Retirement Benefit Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of products sold									0.0	0.4
Selling, general and administrative expenses									0.0	0.8
Other expense, net									0.8	0.0
Total									$ 0.8	$ 1.2