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Fair Value Measurements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Asset impairment charge $ 50 $ 5
Written off of capitalized software 13  
Software
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Asset impairment charge 28  
Retail Stores
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Asset impairment charge 9 5
Retail Stores | Discounted Cash Flow Analysis | Significant Unobservable Inputs (Level 3)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Number of stores impaired 51  
Property and equipment, fair value 4  
Percentage used for analysis 13.00%  
Retail Stores | Stores Reduced to Estimated Salvage Value | Significant Unobservable Inputs (Level 3)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Number of stores impaired 361  
Property and equipment, salvage value 8  
Retail Stores | Decrease in Sales Scenario | Significant Unobservable Inputs (Level 3)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Decrease in sales for scenario 1.00%  
Retail Stores | Decrease in Sales Scenario | Significant Unobservable Inputs (Level 3) | Additional impairment charges
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Asset impairment charge 2  
Retail Stores | Decrease in Gross Margin Scenario | Significant Unobservable Inputs (Level 3)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Decrease in sales for scenario 0.50%  
Retail Stores | Decrease in Gross Margin Scenario | Significant Unobservable Inputs (Level 3) | Additional impairment charges
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Asset impairment charge 2  
Retail Stores | CANADA
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Asset impairment charge $ 1  
Number of stores closed 19