OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Millions, unless otherwise specified	4 Months Ended
	May 24, 2014	May 25, 2013
Reclassification out of AOCI and the related tax effects
Tax expense	$ (274)	$ (266)
Net earnings attributable to The Kroger Co.	501	481
Reclassification out of AOCI
Reclassification out of AOCI and the related tax effects
Net earnings attributable to The Kroger Co.	8	20
Reclassification out of AOCI | Gains on 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 plan items
Reclassification out of AOCI and the related tax effects
Amortization of amounts included in net periodic pension expense	12	30
Tax expense	(4)	(11)
Net earnings attributable to The Kroger Co.	$ 8	$ 19