Cost Reduction Actions (Details 2) (USD $) In Millions, unless otherwise specified	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended						12 Months Ended	9 Months Ended
	Sep. 27, 2014	Sep. 27, 2014 Other expense, net	Dec. 28, 2013 Other expense, net	Sep. 27, 2014 Other expense, net	Sep. 28, 2013 Other expense, net	Sep. 27, 2014 Severance and related costs	Sep. 28, 2013 Severance and related costs	Sep. 27, 2014 Severance and related costs	Sep. 28, 2013 Severance and related costs	Sep. 27, 2014 2014 Actions	Sep. 27, 2014 2014 Actions Severance and related costs	Sep. 27, 2014 2014 Actions Asset impairment charges	Sep. 27, 2014 2014 Actions Lease cancellation costs	Dec. 28, 2013 2012 Program	Sep. 27, 2014 2012 Program Severance and related costs	Sep. 27, 2014 2012 Program Lease and other contract cancellation costs
Cost Reduction Actions
Beginning Balance	$ 6.8														$ 6.6	$ 0.2
Charges (Reversals), net	52.5	6.7	16.7	52.5	32.6	5.1	8.7	48.0	20.9	52.9	48.4	4.0	0.5	40.3	(0.4)
Cash payments	(22.4)										(16.7)		(0.3)		(5.2)	(0.2)
Non-cash Impairment	(4.0)											(4.0)
Foreign Currency translation	(2.0)										(1.9)				(0.1)
Ending Balance	$ 30.9										$ 29.8		$ 0.2		$ 0.9