Accumulated Other Comprehensive (Loss) Income - Reclassification from OCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales	$ 1,069.5	$ 952.7	$ 3,448.0	$ 3,132.2
Cost of products sold	(1,016.9)	(894.4)	(3,210.6)	(2,851.6)
Interest expense	(7.0)	(1.4)	(16.8)	(4.4)
Selling, general and administrative expenses	(49.4)	(41.2)	(147.9)	(131.0)
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]
Sales	(1.9)	1.5	(2.0)	(0.1)
Cost of products sold	0.2	(0.1)	(0.2)	(0.4)
Interest expense	0.8	0.0	0.9	0.0
Total	(0.9)	1.4	(1.3)	(0.5)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of retirement benefits:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of products sold	0.0	0.1	0.0	0.3
Selling, general and administrative expenses	0.0	0.2	0.0	0.6
Other expense, net	0.2	0.0	0.6	0.0
Total	$ 0.2	$ 0.3	$ 0.6	$ 0.9