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Acquisitions - Additional Durational Information (Detail) (USD $)
In Billions, unless otherwise specified
1 Months Ended 6 Months Ended
May 31, 2012
Jun. 30, 2012
Entity
Business Acquisition [Line Items]    
Business acquisition, cash acquired $ 2.9  
Actual number of other acquisitions and purchase of intangible completed   24
Patents and developed technology
   
Business Acquisition [Line Items]    
Acquired intangible assets, weighted-average useful life   9 years
Customer relationships
   
Business Acquisition [Line Items]    
Acquired intangible assets, weighted-average useful life   7 years 6 months
Trade names and other
   
Business Acquisition [Line Items]    
Acquired intangible assets, weighted-average useful life   9 years 4 months
Motorola
   
Business Acquisition [Line Items]    
Business acquisition, unvested Motorola stock options and restricted stock units assumed , weighted-average remaining service periods 2 years 10 months