Schedule II Valuation And Qualifying Accounts Schedule II Valuation And Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Feb. 24, 2017	Feb. 26, 2016	Feb. 27, 2015
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		$ 11.7	$ 14.6	$ 13.0
Charged to cost and expense		4.5	5.5	5.5
Charged to other accounts		0.0	0.0	0.0
Deductions	[1]	(5.2)	(7.8)	(2.3)
Other adjustments	[2]	0.2	(0.6)	(1.6)
Valuation allowances and reserves, balance as of end of period		11.2	11.7	14.6
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		10.6	72.7	81.8
Charged to cost and expense		(1.8)	(58.3)	6.3
Charged to other accounts		0.0	0.0	0.0
Deductions		(0.4)	(1.5)	0.0
Other adjustments	[3]	(0.5)	(2.3)	(15.4)
Valuation allowances and reserves, balance as of end of period		$ 7.9	$ 10.6	$ 72.7

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

[2] Primarily represents currency translation adjustments.

[3] Primarily represents currency translation adjustments.