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Stock-Based Compensation (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Amounts recognized in the financial statements      
Stock-based compensation programs expense $ 253 $ 274 $ 217
Income tax benefits (80) (98) (62)
Stock-based compensation expenses, net of tax 173 176 155
Cost of Sales
     
Amounts recognized in the financial statements      
Stock-based compensation programs expense 29 31 38
Selling, general and administrative expenses
     
Amounts recognized in the financial statements      
Stock-based compensation programs expense 192 209 144
Research, development and related expenses
     
Amounts recognized in the financial statements      
Stock-based compensation programs expense $ 32 $ 34 $ 35