OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Millions, unless otherwise specified	4 Months Ended
	May 25, 2013	May 19, 2012
Reclassification out of accumulated other comprehensive income (loss) and the related tax effects
Amortization of unrealized gains and losses on cash flow hedging activities	$ (129)	$ (141)
Tax expense	(266)	(232)
Net earnings attributable to The Kroger Co.	481	439
Reclassification out of AOCI
Reclassification out of accumulated other comprehensive income (loss) and the related tax effects
Net earnings attributable to The Kroger Co.	20
Reclassification out of AOCI | Gains on cash flow hedging activities
Reclassification out of accumulated other comprehensive income (loss) 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 accumulated other comprehensive income (loss) and the related tax effects
Amortization of amounts included in net periodic pension expense	30
Tax expense	(11)
Net earnings attributable to The Kroger Co.	$ 19