Litigation, Other Contingencies and Guarantees (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
Apr. 28, 2012
Estimate Potential Environmental Liabilities Minimum $ 19
Recorded Best Estimate 20
Estimate Potential Environmental Liabilities Maximum 27
J.C.Penney Direct Marketing Services, Inc. [Member]
 
Maximum Exposure of Guarantee 20
Property Lease Guarantee [Member]
 
Maximum Exposure of Guarantee $ 24