Income Taxes (Provision for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Current
Federal	$ 23.1	$ 13.5	$ 37.8
State	3.5	0.2	1.5
Foreign	30.4	45.1	41.3
Total	57.0	58.8	80.6
Deferred
Federal	5.6	(2.0)	(21.2)
State	1.8	(0.9)	(2.0)
Foreign	(7.3)	(7.5)	(3.2)
Total	0.1	(10.4)	(26.4)
Total	$ 57.1	$ 48.4	$ 54.2