Special items Severance and Other Employee Related (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 30, 2013
Severance and other employee- related costs
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	$ 24.7	$ 24.8
Charges incurred	5.8	4.9
Payments made	(4.5)	(7.5)
Foreign currency and other adjustments	(0.2)	(0.6)
Ending balance of restructuring accruals	25.8	21.6
Severance and other employee- related costs | Canada [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	9.7	7.1
Charges incurred	5.3	1.3
Payments made	(3.6)	(2.9)
Foreign currency and other adjustments	(0.4)	(0.2)
Ending balance of restructuring accruals	11.0	5.3
Severance and other employee- related costs | Europe [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	13.6	13.4
Charges incurred	0.5	3.3
Payments made	(0.6)	(2.6)
Foreign currency and other adjustments	0.2	(0.4)
Ending balance of restructuring accruals	13.7	13.7
Severance and other employee- related costs | MCI [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	0.5	2.8
Charges incurred	0	0
Payments made	(0.1)	(1.7)
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	0.4	1.1
Severance and other employee- related costs | Corporate [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	0.9	1.5
Charges incurred	0	0.3
Payments made	(0.2)	(0.3)
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	$ 0.7	$ 1.5
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Payment of severance obligations, term	12 months
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Payment of severance obligations, term	24 months