Restructuring (Narrative) (Details) - November 2015 Restructuring Program $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2017 USD ($) employees	Sep. 30, 2016 USD ($)	Sep. 29, 2017 USD ($) employees	Sep. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)			$ 31.3
Restructuring costs			105.7
Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)	$ 0.2	$ 3.3	$ 3.3	$ 5.7
Number of employees | employees	480		480
Number of manufacturing employees | employees	360		360
Number of non-manufacturing employees | employees	120		120
Restructuring costs			$ 16.0
Asset-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)			2.3
Restructuring costs		12.9	23.6	14.3
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)	$ 5.6	7.2	25.7	19.8
Restructuring costs			66.1
North America
Restructuring Cost and Reserve [Line Items]
Gain (loss) on disposition of business	(6.9)		(6.9)	53.2
North America | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)	0.2	3.1	1.1	4.1
North America | Long-lived Asset Impairment Charges
Restructuring Cost and Reserve [Line Items]
Restructuring costs			2.3
North America | Asset-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs		12.9		13.9
North America | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)	6.0	7.0	25.8	17.3
Europe | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)		0.1	2.2	1.5
Europe | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)	$ (0.4)			2.2
Latin America | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)		0.1		0.1
Latin America | Asset-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs				0.4
Latin America | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefit)		$ 0.2	$ 0.3	$ 0.3