Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 69.0	$ 52.0	$ 159.6	$ 137.9
Other comprehensive income (loss):
Foreign exchange translation adjustment	36.8	(7.7)	91.6	3.6
Hedge activity, net of tax	1.9	(0.9)	4.8	4.6
Pension and postretirement benefit adjustments, net of tax	3.2	3.3	10.0	10.8
Other comprehensive income (loss)	41.9	(5.3)	106.4	19.0
Comprehensive income, net of tax	$ 110.9	$ 46.7	$ 266.0	$ 156.9