Restructuring Activities (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 22, 2013	Feb. 24, 2012	Feb. 25, 2011
Restructuring Cost and Reserve [Line Items]
Impairment of Long-Lived Assets to be Disposed of		$ 2.8	$ 4.0
Gain (Loss) on Sale of Property Plant Equipment	(1.6)	(4.6)	5.7
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning of Period	17.6	27.0	10.3
Restructuring costs	34.7	30.5	30.6
Restructuring Reserve, Settled with Cash	(40.5)	(45.1)	(24.2)
Restructuring Reserve, Accrual Adjustment	(0.7)	5.2	10.3
Restructuring Reserve, End of Period	11.1	17.6	27.0
Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	14.9	26.2	25.8
Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	19.8	4.3	4.8
Americas [Member]
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Sale of Property Plant Equipment			15.9
Sale Leaseback Transaction, Current Period Gain Recognized			10.6
Americas [Member] | Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	13.9	20.0	7.0
Americas [Member] | Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	14.7	1.5	1.1
EMEA [Member] | Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	1.0	5.0	18.7
EMEA [Member] | Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	4.0	3.0	0.4
Other category [Member]
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Sale of Property Plant Equipment			3.2
Other category [Member] | Cost of Sales [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0	1.2	0.1
Other category [Member] | Operating Expense [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	1.1	(0.2)	3.3
Building and Building Improvements [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of Long-Lived Assets to be Disposed of	12.4
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning of Period	12.9	25.7	6.8
Restructuring costs	11.5	25.6	38.3
Restructuring Reserve, Settled with Cash	(16.4)	(38.2)	(19.6)
Restructuring Reserve, Accrual Adjustment	(0.2)	(0.2)	0.2
Restructuring Reserve, End of Period	7.8	12.9	25.7
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning of Period	4.7	1.3	3.5
Restructuring costs	23.2	4.9	(7.7)
Restructuring Reserve, Settled with Cash	(24.1)	(6.9)	(4.6)
Restructuring Reserve, Accrual Adjustment	(0.5)	5.4	10.1
Restructuring Reserve, End of Period	3.3	4.7	1.3
EMEA Dealer Consolidation Q4 2013 [Member] | Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	3.8
PolyVision Technology SES Integration Plan Announced Q2 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	4.0
PolyVision Technology SES Integration Plan Announced Q2 2013 [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	2.0
Restructuring Reserve [Roll Forward]
Restructuring costs	1.4
PolyVision Technology SES Integration Plan Announced Q2 2013 [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	2.0
Restructuring Reserve [Roll Forward]
Restructuring costs	0.6
Americas Modernization Plan Announced Q4 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	41.0
Americas Modernization Plan Announced Q4 2011 [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	28.4
Restructuring Reserve [Roll Forward]
Restructuring costs	4.2	14.3	9.9
Americas Modernization Plan Announced Q4 2011 [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	12.6
Restructuring Reserve [Roll Forward]
Restructuring costs	8.8	3.6	0.2
European Operations Announced Q1 2011 [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs		1.9	18.6
Morocco Plant Announced Q2 2012 [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Sale of Property Plant Equipment		(4.1)
Morocco Plant Announced Q2 2012 [Member] | Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs		6.8
Morocco Plant Announced Q2 2012 [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs		0.3
Polyvision European Whiteboard Fabrication Business Sale Q2 2012 [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs		$ 0.9