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Summary of Major Components of Merger, Restructuring and Other Operating Expenses, Net (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 27, 2015
Jun. 28, 2014
Merger related expenses        
Merger related expenses, Severance, retention, and relocation $ 6 $ 48 $ 11 $ 119
Merger related expenses, Transaction and integration 29 38 53 59
Merger related expenses, Other related expenses 29 6 15 10
Total Merger related expenses 64 92 79 188
International restructuring and certain other expenses        
International restructuring and certain other expenses, Severance, retention, and relocation 20 7 25 10
International restructuring and certain other expenses, Integration 2 4 4 5
International restructuring and certain other expenses, Other related expenses     6 1
Total International restructuring and certain other expenses 22 11 35 16
Staples Acquisition expenses 34   49  
Total Merger, restructuring and other operating expenses, net $ 120 $ 103 $ 163 $ 204