EARNINGS PER COMMON SHARE (Details) (USD $) In Millions, except Share data, unless otherwise specified	4 Months Ended
	May 24, 2014	May 25, 2013
EARNINGS PER COMMON SHARE
Net earnings attributable to The Kroger Co. per basic common share	$ 497	$ 477
Average number of common shares used in basic calculation	501,000,000	514,000,000
Net earnings attributable to The Kroger Co. per basic common share (in dollars per share)	$ 0.99	$ 0.93
Dilutive effect of stock options (in shares)	6,000,000	6,000,000
Net earnings attributable to The Kroger Co. per diluted common share	497	477
Average number of common shares used in diluted calculation	507,000,000	520,000,000
Net earnings attributable to The Kroger Co. per diluted common share (in dollars per share)	$ 0.98	$ 0.92
Undistributed and distributed earnings to participating securities	$ 4	$ 4
Shares excluded from the earnings per share calculation due to anti-dilutive effect on earnings per share	2,000,000