Summary of Significant Accounting Policies Warranty roll-forward (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 24, 2017	Feb. 26, 2016	Feb. 27, 2015	Feb. 28, 2014
Accounting Policies [Abstract]
Product Warranty Accrual	$ 41.3	$ 42.1	$ 39.4	$ 37.3
Product Warranty Accrual, Period Increase (Decrease)	19.5	18.1	17.1
Product Warranty Accrual, Payments	20.1	16.0	13.6
Product Warranty Accrual, Currency Translation, Increase (Decrease)	$ (0.2)	$ 0.6	$ (1.4)

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(5))
-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Total Increase or Decrease in the standard and extended product warranty liability due to currency translation.

+ References

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Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

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Total increases or decreases in the standard and extended product warranty liability during the period.

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