EARNINGS PER COMMON SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 17, 2013	Aug. 11, 2012	Aug. 17, 2013	Aug. 11, 2012
EARNINGS PER COMMON SHARE
Net earnings attributable to The Kroger Co. per basic common share	$ 315	$ 277	$ 791	$ 713
Average number of common shares used in basic calculation	515	538	515	548
Net earnings attributable to The Kroger Co. per basic common share (in dollars per share)	$ 0.61	$ 0.52	$ 1.54	$ 1.30
Dilutive effect of stock options (in shares)	6	3	5	4
Net earnings attributable to The Kroger Co. per diluted common share	315	277	791	713
Average number of common shares used in diluted calculation	521	541	520	552
Net earnings attributable to The Kroger Co. per diluted common share (in dollars per share)	$ 0.60	$ 0.51	$ 1.52	$ 1.29
Undistributed and distributed earnings to participating securities	$ 2	$ 2	$ 7	$ 5
Shares excluded from the earnings per share calculation due to anti-dilutive effect on earnings per share	2	16	1	13