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EARNINGS PER COMMON SHARE (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 11, 2012
Aug. 13, 2011
Aug. 11, 2012
Aug. 13, 2011
EARNINGS PER COMMON SHARE        
Net earnings attributable to The Kroger Co. per basic common share $ 277 $ 279 $ 713 $ 708
Average number of common shares used in basic calculation 538 596 548 603
Net earnings attributable to The Kroger Co. per basic common share (in dollars per share) $ 0.52 $ 0.47 $ 1.30 $ 1.17
Dilutive effect of stock options (in shares) 3 4 4 4
Net earnings attributable to The Kroger Co. per diluted common share 277 279 713 708
Average number of common shares used in diluted calculation 541 600 552 607
Net earnings attributable to The Kroger Co. per diluted common share (in dollars per share) $ 0.51 $ 0.46 $ 1.29 $ 1.17
Combined Undistributed and distributed earnings to participating securities $ 2 $ 2 $ 5 $ 5
Shares excluded from the earnings per share calculation due to anti-dilutive effect on earnings per share 16 11 13 13