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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 25, 2011
Mar. 27, 2011
Dec. 26, 2010
Significant Accounting Policies [Line Items]      
Percentage of ownership interests on subsidiary   52.90% 50.80%
Restricted stock and restricted stock units, requisite service period 4 years    
Other Businesses
     
Significant Accounting Policies [Line Items]      
Investments in non-public businesses, non-operating expense 2   16
Building and Building Improvements
     
Significant Accounting Policies [Line Items]      
Property, plant and equipment, minimum useful life (in years) 10    
Property, plant and equipment, maximum useful life (in years) 40    
Machinery and Equipment
     
Significant Accounting Policies [Line Items]      
Property, plant and equipment, minimum useful life (in years) 3    
Property, plant and equipment, maximum useful life (in years) 30    
Tucson Newspaper Partnership
     
Significant Accounting Policies [Line Items]      
Equity method investment ownership percentage 50.00%