Segment Information (Details 2) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jul. 04, 2015	Apr. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Restructuring costs
Asset impairment				$ 33.9
Other items:
Impairment charges on assets held for sale		$ 2.0
Loss on sale of product line and related exit costs	$ 7.7			10.3
Gain on sale of asset			$ (0.6)	(1.7)	$ (0.6)
Loss from curtailment of pension obligation			0.6		0.6
Legal settlement				(0.5)
Other expense, net	27.7		38.5	42.0	45.8
Severance and related costs
Restructuring costs
Asset impairment	16.8		35.9	30.3	42.9
Asset impairment
Restructuring costs
Asset impairment	$ 3.2		$ 2.6	$ 3.6	$ 2.9