3M CO | 2013 | FY | 3


Stock-Based Compensation Expense         
          
  Years ended December 31
(Millions) 2013 2012 2011
Cost of sales $ 27 $ 27 $ 29
Selling, general and administrative expenses    183   167   192
Research, development and related expenses    30   29   32
          
Stock-based compensation expenses  $ 240 $ 223 $ 253
          
Income tax benefits  $ (71) $ (67) $ (80)
          
Stock-based compensation expenses, net of tax  $ 169 $ 156 $ 173

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