Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Feb. 26, 2016	Feb. 27, 2015
Accounts receivable, allowances	$ 11.7	$ 14.6
Property, plant and equipment, accumulated depreciation	(936.8)	(1,055.9)
Other intangible assets, accumulated amortization	$ 42.7	$ 41.1
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares outstanding	119,400,000	121,500,000
Class A Common Stock [Member]
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	475,000,000	475,000,000
Common stock, shares issued	87,759,355	89,248,134
Common stock, shares outstanding	87,759,355	89,248,134
Class B Common Stock [Member]
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	475,000,000	475,000,000
Common stock, shares issued	31,611,411	32,220,413
Common stock, shares outstanding	31,611,411	32,220,413