OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 16, 2014	Aug. 17, 2013	Aug. 16, 2014	Aug. 17, 2013
Reclassification out of AOCI and the related tax effects
Tax expense	$ (182)	$ (176)	$ (456)	$ (442)
Net earnings attributable to The Kroger Co.	347	317	848	798
Reclassification out of AOCI
Reclassification out of AOCI and the related tax effects
Net earnings attributable to The Kroger Co.	5	14	13	34
Reclassification out of AOCI | Cash Flow Hedging Activities
Reclassification out of AOCI and the related tax effects
Amortization of unrealized gains and losses on cash flow hedging activities				1
Net earnings attributable to The Kroger Co.				1
Reclassification out of AOCI | Pension and Postretirement Defined Benefit Plans
Reclassification out of AOCI and the related tax effects
Amortization of amounts included in net periodic pension expense	9	23	21	53
Tax expense	(4)	(9)	(8)	(20)
Net earnings attributable to The Kroger Co.	$ 5	$ 14	$ 13	$ 33