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Net Earnings Per Share (Details) (USD $)
In Millions, except Per Share data
3 Months Ended 6 Months Ended
Apr. 30, 2011
Apr. 30, 2010
Apr. 30, 2011
Apr. 30, 2010
Numerator:        
Net earnings $ 2,304 $ 2,200 $ 4,909 $ 4,450
Denominator:        
Weighted average shares used to compute basic EPS (in shares) 2,150 2,345 2,166 2,352
Dilutive effect of employee stock plans (in shares) 34 61 37 60
Weighted average shares used to compute diluted EPS (in shares) 2,184 2,406 2,203 2,412
Net earnings per share:        
Basic (in dollars per share) $ 1.07 $ 0.94 $ 2.27 $ 1.89
Diluted (in dollars per share) $ 1.05 $ 0.91 $ 2.23 $ 1.84
Options with exercise price greater than market price of stock
       
Other information related to EPS computation        
Antidilutive securities excluded from the calculation of EPS (in shares) 6 17 6 18
Stock options combined exercise price unamortized fair value excess tax benefits greater than market price
       
Other information related to EPS computation        
Antidilutive securities excluded from the calculation of EPS (in shares) 1 2 1 3