Schedule II Valuation And Qualifying Accounts Schedule II Valuation And Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 27, 2015		Feb. 28, 2014		Feb. 22, 2013		Feb. 25, 2011
Allowance for Losses on Accounts Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation allowances and reserves, balance as of beginning of period	$ 13.0		$ 14.5				$ 19.6
Charged to cost and expense	5.5		2.7		2.8
Charged to other accounts	0		0.1		0.3
Deductions	(2.3)	[1]	(4.6)	[1]	(7.9)	[1]
Other adjustments	(1.6)	[2]	0.3	[2]	(0.3)	[2]
Valuation allowances and reserves, balance as of end of period	14.6		13.0		14.5		19.6
Valuation Allowance for Deferred Income Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation allowances and reserves, balance as of beginning of period	81.8		70.4				34.5
Charged to cost and expense	6.3		8.9		40.0
Charged to other accounts	0		0		0
Deductions	0		(0.5)		(4.4)
Other adjustments	(15.4)	[2]	3.0	[2]	0.3	[2]
Valuation allowances and reserves, balance as of end of period	$ 72.7		$ 81.8		$ 70.4		$ 34.5

[1] Primarily represents excess of accounts written off over recoveries.

[2] Primarily represents currency translation adjustments.