Credit Facility (Details) - USD ($)
$ in Millions
 6 Months Ended
Aug. 01, 2015
Jun. 20, 2014
Line of Credit Facility [Line Items]    
2014 Credit Facility, initiation date Jun. 20, 2014  
2014 Credit Facility   $ 2,350
Revolving Facility, maximum borrowing capacity   1,850
2014 Term Loan under the 2014 Credit Facility $ 495 $ 500
Current Borrowing Capacity Before Standby And Import Letters Of Credit 1,635  
Revolving Facility, total standby and import letters of credit outstanding $ 310  
Revolving Facility, commitment fee interest rate on unused capacity 0.375%  
Revolving Facility, remaining borrowing capacity $ 1,325  
2014 Credit Facility, description On June 20, 2014, J. C. Penney Company, Inc., JCP and J. C. Penney Purchasing Corporation (Purchasing) entered into a $2,350 million asset-based senior credit facility (2014 Credit Facility), comprised of a $1,850 million revolving line of credit (Revolving Facility) and a $500 million term loan (2014 Term Loan).  
Standby Letter of Credit [Member]    
Line of Credit Facility [Line Items]    
Revolving Facility, interest rate at period end 2.50%  
Foreign Letter of Credit [Member]    
Line of Credit Facility [Line Items]    
Revolving Facility, interest rate at period end 1.25%