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Earnings Per Share (Tables)
12 Months Ended
May 29, 2011
Earnings Per Share (Tables)  
Schedule Of Earnings Per Share Basic And Diluted [Table Text Block]
 Fiscal Year
In Millions, Except per Share Data 2011  2010  2009
Net earnings attributable to General Mills$ 1,798.3 $ 1,530.5 $ 1,304.4
         
Average number of common shares - basic EPS  642.7   659.6   663.7
Incremental share effect from: (a)        
Stock options  16.6   17.7   17.9
Restricted stock, restricted stock units, and other  5.5   6.0   5.5
Average number of common shares - diluted EPS  664.8   683.3   687.1
Earnings per share - basic$2.80 $ 2.32 $ 1.96
Earnings per share - diluted$2.70 $ 2.24 $ 1.90
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block]
   Fiscal Year
 In Millions 2011 2010 2009
 Anti-dilutive stock options and restricted stock units  4.8  6.3  14.2