Accumulated Other Comprehensive Income (Loss) (Changes in AOCI by Component) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (413.2)	$ (323.2)
Other comprehensive income before reclassifications	26.1	(52.6)
Amounts reclassified from AOCI	5.2	6.0
Other comprehensive income (loss)	31.3	(46.6)
Ending balance	(381.9)	(369.8)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(174.2)	(90.6)
Other comprehensive income before reclassifications	23.1	(49.2)
Amounts reclassified from AOCI	0.0	0.0
Other comprehensive income (loss)	23.1	(49.2)
Ending balance	(151.1)	(139.8)
Cash Flow Hedges and Other
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(6.7)	(5.3)
Other comprehensive income before reclassifications	3.0	(3.4)
Amounts reclassified from AOCI	1.6	1.1
Other comprehensive income (loss)	4.6	(2.3)
Ending balance	(2.1)	(7.6)
Pension and Postretirement Benefits
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(232.3)	(227.3)
Other comprehensive income before reclassifications	0.0	0.0
Amounts reclassified from AOCI	3.6	4.9
Other comprehensive income (loss)	3.6	4.9
Ending balance	$ (228.7)	$ (222.4)