Goodwill & Other Intangible Assets Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 24, 2017	Feb. 26, 2016	Feb. 27, 2015
Goodwill [Roll Forward]
Goodwill	$ 471.1	$ 471.9
Accumulated impairment losses	364.7	364.7	$ 364.7
Currency translation adjustments	0.3	(0.8)
Goodwill	471.4	471.1
Goodwill, net	106.7	106.4	107.2
Asia Pacific Reporting Unit [Member] [Domain]
Goodwill [Roll Forward]
Goodwill, net		0.0
Americas [Member]
Goodwill [Roll Forward]
Goodwill	89.6	90.4
Accumulated impairment losses	1.7	1.7	1.7
Currency translation adjustments	0.3	(0.8)
Goodwill	89.9	89.6
Goodwill, net	88.2	87.9	88.7
EMEA [Member]
Goodwill [Roll Forward]
Goodwill	265.0	265.0
Accumulated impairment losses	265.0	265.0	265.0
Currency translation adjustments	0.0	0.0
Goodwill	265.0	265.0
Goodwill, net	0.0	0.0	0.0
Other category [Member]
Goodwill [Line Items]
Intangible asset impairment charges		0.0
Goodwill [Roll Forward]
Goodwill	116.5	116.5
Accumulated impairment losses	98.0	98.0	98.0
Currency translation adjustments	0.0	0.0
Goodwill	116.5	116.5
Goodwill, net	$ 18.5	$ 18.5	$ 18.5

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Name Accounting Standards Codification
-Topic 350
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-Section 45
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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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