Restructuring (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Oct. 26, 2015	Feb. 17, 2015	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring
Total restructuring			$ 5.8	$ 0.4	$ 12.5	$ 7.2
Pre-tax restructuring charges, net			5.8	0.4	12.5	7.2
Elimination of sales			366.3	376.0	1,109.4	1,137.2
Corporate
Restructuring
Pre-tax restructuring charges, net					(0.1)	0.8
EMEA
Restructuring
Pre-tax restructuring charges, net			0.8	0.4	2.3	4.1
Asia Pacific
Restructuring
Pre-tax restructuring charges, net			0.2		3.5
Americas
Restructuring
Pre-tax restructuring charges, net			4.8		6.8	2.3
2015 Actions
Restructuring
Net pre-tax restructuring charges			5.0		10.3
2015 Actions | Minimum
Restructuring
Estimated pre-tax program to date restructuring and other charges incurred					63.0
Other transformation and deployment costs					28.2
2015 Actions | Maximum
Restructuring
Estimated pre-tax program to date restructuring and other charges incurred					68.0
Other transformation and deployment costs					33.2
2015 Actions | Americas and Asia Pacific
Restructuring
Estimated pre-tax program to date restructuring and other charges incurred		$ 33.0
Expected pre-tax restructuring charges, net	$ 12.0	9.4
Non-cash charges	$ 5.0	18.0
Total expected restructuring and related costs, after tax		28.0
Goodwill and intangible asset impairment charges recognized in phase one		13.4
Other transformation and deployment costs		10.2
Reduction of area of space (as a percent)	30.00%
Cost incurred to date	$ 2.8	27.6
2015 Actions | Americas and Asia Pacific | Minimum
Restructuring
Estimated pre-tax program to date restructuring and other charges incurred	30.0
Elimination of sales		175.0
Total expected restructuring and related costs, after tax	18.0
Other transformation and deployment costs	18.0
2015 Actions | Americas and Asia Pacific | Maximum
Restructuring
Estimated pre-tax program to date restructuring and other charges incurred	35.0
Elimination of sales		$ 200.0
Total expected restructuring and related costs, after tax	22.0
Other transformation and deployment costs	$ 23.0
2013 Actions
Restructuring
Net pre-tax restructuring charges				$ 0.4	0.5	2.9
Other Actions
Restructuring
Net pre-tax restructuring charges			0.8		1.7	$ 4.3
Other Actions | EMEA
Restructuring
Expected costs			9.9		9.9
Pre-tax program to date restructuring and other charges incurred			$ 8.3		$ 8.3