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Restructuring and Other Charges, Net - Expected, incurred and remaining pre-tax restructuring costs (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended		18 Months Ended
	Jul. 03, 2016	Apr. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Jul. 03, 2016
Restructuring reserve
Costs incurred	$ 3.2		$ 4.7	$ 4.6	$ 6.7
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	3.2		$ 4.7	4.6	$ 6.7
2015 Actions
Restructuring reserve
Costs incurred	0.8	$ 1.0		1.8		$ 13.6
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.8	1.0		1.8		13.6
Costs incurred through date	(15.4)			(15.4)				$ (15.4)
Remaining costs				5.0				5.0
Total expected restructuring costs				20.4				20.4
EMEA | 2015 Actions
Restructuring reserve
Balance at the beginning of the period	6.3	6.4		6.4
Costs incurred	1.5	0.1				6.9
Utilization and foreign currency impact	(1.0)	(0.2)
Balance at the end of the period	6.8	6.3		6.8		6.4		6.8
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	1.5	0.1				6.9
Remaining costs				1.5
Total expected restructuring costs				10.0
EMEA | 2014 Actions
Restructuring reserve
Balance at the beginning of the period	1.9	2.6		2.6
Costs incurred	0.1	0.3				(0.5)	$ 6.9
Utilization and foreign currency impact	(0.8)	(1.0)
Balance at the end of the period	1.2	1.9		1.2		2.6		1.2
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.1	0.3				(0.5)	6.9
Remaining costs				1.2
Total expected restructuring costs				8.0
Americas and Asia Pacific | 2015 Actions
Restructuring reserve
Balance at the beginning of the period	5.1	6.4		6.4
Costs incurred	0.8	1.0
Utilization and foreign currency impact	(1.5)	(2.3)
Balance at the end of the period	4.4	5.1		4.4		6.4		4.4
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.8	1.0
Asia Pacific | 2015 Actions
Restructuring reserve
Costs incurred				0.2
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred				0.2
Costs incurred through date	(4.4)			(4.4)				(4.4)
Total expected restructuring costs								4.4
Americas | 2015 Actions
Restructuring reserve
Costs incurred	0.8			1.6
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.8			1.6
Costs incurred through date	(11.0)			(11.0)				(11.0)
Remaining costs								5.0
Total expected restructuring costs								16.0
Severance | 2015 Actions
Restructuring reserve
Costs incurred	0.2	0.2				8.5
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.2	0.2				8.5
Remaining costs				0.1
Total expected restructuring costs				9.0
Severance | EMEA | 2015 Actions
Restructuring reserve
Balance at the beginning of the period	6.3	6.4		6.4
Costs incurred	1.3	0.1				6.6
Utilization and foreign currency impact	(0.8)	(0.2)
Balance at the end of the period	6.8	6.3		6.8		6.4		6.8
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	1.3	0.1				6.6
Remaining costs				0.5
Total expected restructuring costs				8.5
Severance | EMEA | 2014 Actions
Restructuring reserve
Balance at the beginning of the period	1.9	2.6		2.6
Costs incurred		0.2				(1.0)	6.9
Utilization and foreign currency impact	(0.7)	(0.9)
Balance at the end of the period	1.2	1.9		1.2		2.6		1.2
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred		0.2				(1.0)	$ 6.9
Remaining costs				0.6
Total expected restructuring costs				6.7
Severance | Americas and Asia Pacific | 2015 Actions
Restructuring reserve
Balance at the beginning of the period	4.1	5.0		5.0
Costs incurred	0.2	0.2
Utilization and foreign currency impact		(1.1)
Balance at the end of the period	4.3	4.1		4.3		5.0		4.3
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.2	0.2
Legal and consultancy | 2015 Actions
Restructuring reserve
Costs incurred		0.2				0.7
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred		0.2				0.7
Remaining costs				0.3
Total expected restructuring costs				1.2
Legal and consultancy | EMEA | 2015 Actions
Restructuring reserve
Costs incurred	0.2
Utilization and foreign currency impact	(0.2)
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.2
Remaining costs				1.0
Total expected restructuring costs				1.2
Legal and consultancy | EMEA | 2014 Actions
Restructuring reserve
Costs incurred						0.2
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred						0.2
Total expected restructuring costs				0.2
Legal and consultancy | Americas and Asia Pacific | 2015 Actions
Restructuring reserve
Balance at the beginning of the period		0.4		0.4
Costs incurred		0.2
Utilization and foreign currency impact		(0.6)
Balance at the end of the period						0.4
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred		0.2
Asset write-downs | 2015 Actions
Restructuring reserve
Costs incurred	0.8	0.2				1.6
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.8	0.2				1.6
Remaining costs				0.1
Total expected restructuring costs				2.7
Asset write-downs | EMEA | 2014 Actions
Restructuring reserve
Costs incurred	0.1	0.1				0.3
Utilization and foreign currency impact	(0.1)	(0.1)
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.1	0.1				0.3
Remaining costs				0.5
Total expected restructuring costs				1.0
Asset write-downs | Americas and Asia Pacific | 2015 Actions
Restructuring reserve
Costs incurred	0.8	0.2
Utilization and foreign currency impact	(0.8)	(0.2)
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	0.8	0.2
Facility exit and other | 2015 Actions
Restructuring reserve
Costs incurred	(0.2)	0.4				2.8
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	(0.2)	0.4				2.8
Remaining costs				4.5
Total expected restructuring costs				7.5
Facility exit and other | EMEA | 2015 Actions
Restructuring reserve
Costs incurred						0.3
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred						0.3
Total expected restructuring costs				0.3
Facility exit and other | EMEA | 2014 Actions
Summary of total expected, incurred and remaining pre-tax costs
Remaining costs				0.1
Total expected restructuring costs				0.1
Facility exit and other | Americas and Asia Pacific | 2015 Actions
Restructuring reserve
Balance at the beginning of the period	1.0	1.0		1.0
Costs incurred	(0.2)	0.4
Utilization and foreign currency impact	(0.7)	(0.4)
Balance at the end of the period	0.1	1.0		$ 0.1		$ 1.0		$ 0.1
Summary of total expected, incurred and remaining pre-tax costs
Costs incurred	$ (0.2)	$ 0.4

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- Definition

Amount of costs incurred to date for the specified restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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-Publisher FASB
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-Topic 420
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 420
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 225
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