Restructuring (Restructuring Activity) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
November 2015 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	$ 25.0
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	4.5
Net provisions	6.8	$ 6.8
Net benefits charged against the assets	(0.4)
Payments	(6.4)
Foreign currency translation	0.1
Balance, April 1, 2016	4.6
Restructuring Costs	15.4
November 2015 Restructuring Program [Member] | Employee Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	5.0
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	1.3
Net provisions	1.3
Net benefits charged against the assets	0.0
Payments	(0.3)
Foreign currency translation	0.0
Balance, April 1, 2016	2.3
Restructuring Costs	3.5
November 2015 Restructuring Program [Member] | Asset-Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	6.0
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	0.0
Net provisions	0.1
Net benefits charged against the assets	(0.1)
Payments	0.0
Foreign currency translation	0.0
Balance, April 1, 2016	0.0
Restructuring Costs	2.0
November 2015 Restructuring Program [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	14.0
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	3.2
Net provisions	5.4
Net benefits charged against the assets	(0.3)
Payments	(6.1)
Foreign currency translation	0.1
Balance, April 1, 2016	2.3
Restructuring Costs	9.9
July 2014 Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	10.6
Net provisions	4.9	15.9
Net benefits charged against the assets	(1.5)
Payments	(5.0)
Foreign currency translation	0.3
Balance, April 1, 2016	9.3
Restructuring Costs	197.9
July 2014 Restructuring Program [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	7.6
Net provisions	0.8	9.5
Net benefits charged against the assets	0.0
Payments	(3.9)
Foreign currency translation	0.3
Balance, April 1, 2016	4.8
Restructuring Costs	51.0
July 2014 Restructuring Program [Member] | Asset-Related Costs [Member]
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	0.0
Net provisions	1.5	1.2
Net benefits charged against the assets	(1.5)
Payments	0.0
Foreign currency translation	0.0
Balance, April 1, 2016	0.0
Restructuring Costs	121.5
July 2014 Restructuring Program [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Balance, December 31, 2015	3.0
Net provisions	2.6	$ 5.2
Net benefits charged against the assets	0.0
Payments	(1.1)
Foreign currency translation	0.0
Balance, April 1, 2016	4.5
Restructuring Costs	$ 25.4