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Leases - Carrying Value of Owned Property Leased to Third Parties Under Operating Leases (Detail) (USD $)
In Millions, unless otherwise specified
Feb. 23, 2013
Feb. 25, 2012
Leases [Abstract]    
Property, plant and equipment $ 4 $ 6
Less accumulated depreciation (3) (3)
Property, plant and equipment, net $ 1 $ 3