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Employee Benefit Plans - Additional Information (Detail) (USD $)
12 Months Ended 12 Months Ended
Nov. 25, 2012
Nov. 27, 2011
Nov. 25, 2012
Pension Benefits
Nov. 27, 2011
Pension Benefits
Nov. 28, 2010
Pension Benefits
Nov. 25, 2012
United States postretirement benefit plans of US entity, defined benefit
Nov. 25, 2012
United States postretirement benefit plans of US entity, defined benefit
Minimum
Nov. 25, 2012
United States postretirement benefit plans of US entity, defined benefit
Maximum
Nov. 25, 2012
Foreign pension plans, defined benefit
Nov. 25, 2012
Postretirement Benefits
Nov. 27, 2011
Postretirement Benefits
Nov. 28, 2010
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]                        
Accumulated benefit obligation $ 1,400,000,000 $ 1,200,000,000                    
Net gain (loss) recognized in net periodic benefit cost, net of tax, next twelve months     16,800,000             6,300,000    
Expected duration of returns for the plan 20 years                      
Target allocation percentage of assets, domestic equity securities             43.00% 47.00%        
Target allocation percentage of assets fixed income securities             43.00% 47.00%        
Target allocation percentage of assets domestic other alternative investments             8.00% 12.00%        
Fair value of plan assets     894,362,000 771,914,000 731,676,000 761,000,000     133,000,000 0 0 0
Estimated future employer contributions in next fiscal year     $ 31,700,000