Restructuring Activities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 22, 2013	Nov. 23, 2012	Nov. 22, 2013	Nov. 23, 2012
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period			$ 11.1
Restructuring costs	1.7	6.0	9.4	14.8
Restructuring reserve, settled with cash			(9.3)
Restructuring reserve, accrual adjustment			(0.3)
Restructuring reserve, end of period	10.9		10.9
Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0.9	3.3	1.0	11.8
Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0.8	2.7	8.4	3.0
Q1 2014 France SG&A Reorg [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			7
Q3 2014 EMEA restructuring [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			20
Q3 2014 EMEA restructuring [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			25
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period			7.8
Restructuring costs			6.7
Restructuring reserve, settled with cash			5.4
Restructuring reserve, accrual adjustment			(0.6)
Restructuring reserve, end of period	8.5		8.5
Employee Severance [Member] | Q1 2014 France SG&A Reorg [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			6
Restructuring Reserve [Roll Forward]
Restructuring costs	0.9		5.6
Employee Severance [Member] | Q3 2014 EMEA restructuring [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			15
Employee Severance [Member] | Q3 2014 EMEA restructuring [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			20
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period			3.3
Restructuring costs			2.7
Restructuring reserve, settled with cash			(3.9)
Restructuring reserve, accrual adjustment			0.3
Restructuring reserve, end of period	2.4		2.4
Other Restructuring [Member] | Q1 2014 France SG&A Reorg [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			1
Restructuring Reserve [Roll Forward]
Restructuring costs			0.9
Other Restructuring [Member] | PolyVision Technology SES Integration Plan Announced Q2 2013 [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0.1		1.1
Other Restructuring [Member] | Q3 2014 EMEA restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost			5
Restructuring Reserve [Roll Forward]
Restructuring costs	0.6
Americas [Member] | Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	(0.1)	3.2	0	11.4
Americas [Member] | Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0.1	1.8	1.2	1.8
EMEA [Member] | Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	1.0	0.1	1.0	0.4
EMEA [Member] | Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0.5	0.4	7.0	0.4
Other category [Member] | Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0	0	0	0
Other category [Member] | Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	$ 0.2	$ 0.5	$ 0.2	$ 0.8