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Fair Value Measurements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 23, 2013
Store
Feb. 25, 2012
Feb. 26, 2011
Fair Value Measurements Of Financial Instruments [Line Items]      
Amount of long-lived assets $ 79 $ 10  
Fair value of long-lived assets 40 7  
Asset impairment charge 283 6 63
Number of non-strategic stores closed 22    
Difference between fair value and book value of notes receivable 2    
Difference between fair value and book value of long-term debt 57 62  
Level 3 [Member]
     
Fair Value Measurements Of Financial Instruments [Line Items]      
Asset impairment charge $ 39 $ 3