Income Taxes Deferred Income Taxes, Income Taxes Receivable, Income Taxes Payable (Details) (USD $) In Millions, unless otherwise specified	Feb. 22, 2013	Feb. 24, 2012
Deferred Tax Assets, Gross [Abstract]
Employee benefit plan obligations	$ 90.7	$ 94.7
Foreign and domestic net operating loss carryforwards	85.0	91.4
Reserves and accruals	26.5	33.2
Tax credit carryforwards	60.2	20.5
Other, net	6.1	4.5
Deferred income tax assets, gross	268.5	244.3
Valuation Allowances	(70.4)	(34.5)
Net deferred income tax assets	198.1	209.8
Deferred Tax Liabilities [Abstract]
Property, plant and equipment	31.7	37.8
Intangible assets	14.2	21.1
Deferred income tax liabilities	45.9	58.9
Balance Sheet Related Disclosures [Abstract]
Net deferred income taxes	152.2	150.9
Deferred income tax assets - current	56.2	42.4
Deferred income tax assets - non-current	101.7	110.4
Deferred income tax liabilities - current	0	0
Deferred income tax liabilities - non-current	5.7	1.9
Unremitted Foreign Earnings [Abstract]
Unremitted foreign earnings permanently invested	174.4
Estimated tax expense of unremitted foreign earnings	11.0
Current Taxes Payable or Refundable [Abstract]
Income taxes receivable	4.7	3.0
Income taxes payable	2.7	3.1
Foreign locations [Member]
Deferred Tax Assets, Gross [Abstract]
Valuation Allowances	(70.0)
Morocco [Member]
Deferred Tax Assets, Gross [Abstract]
Valuation Allowances	(2.1)
United Kingdom [Member]
Deferred Tax Assets, Gross [Abstract]
Valuation Allowances	(3.4)
France [Member]
Deferred Tax Assets, Gross [Abstract]
Valuation Allowances	(64.5)
United States [Member]
Deferred Tax Assets, Gross [Abstract]
Valuation Allowances	(0.4)
Restatement Adjustment [Member]
Balance Sheet Related Disclosures [Abstract]
Deferred income tax assets - non-current		$ 22.1