Inventories (Tables)

9 Months Ended

Sep. 29, 2018

Inventory Disclosure [Abstract]

Schedule of inventories

(dollars in millions)	As of September 29, 2018		As of December 30, 2017
Raw materials and supplies	$	156.1	$	128.0
Work in progress	38.5		32.8
Finished goods	332.2		296.3
Total inventories	$	526.8	$	457.1