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EARNINGS PER COMMON SHARE (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 03, 2012
Nov. 05, 2011
Nov. 03, 2012
Nov. 05, 2011
EARNINGS PER COMMON SHARE        
Net earnings attributable to The Kroger Co. per basic common share $ 314 $ 194 $ 1,027 $ 903
Average number of common shares used in basic calculation 518 583 539 597
Net earnings attributable to The Kroger Co. per basic common share (in dollars per share) $ 0.61 $ 0.33 $ 1.90 $ 1.51
Dilutive effect of stock options (in shares) 4 3 4 4
Net earnings attributable to The Kroger Co. per diluted common share 314 194 1,027 903
Average number of common shares used in diluted calculation 522 586 543 601
Net earnings attributable to The Kroger Co. per diluted common share (in dollars per share) $ 0.60 $ 0.33 $ 1.89 $ 1.50
Combined Undistributed and distributed earnings to participating securities $ 3 $ 2 $ 8 $ 6
Shares excluded from the earnings per share calculation due to anti-dilutive effect on earnings per share 14 17 12 13