Credit Facility (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
May 02, 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 496 500
Current Borrowing Capacity Before Standby And Import Letters Of Credit 1,529  
Revolving Facility, total standby and import letters of credit outstanding 318  
Revolving Facility, commitment fee interest rate on unused capacity 0.375%  
Revolving Facility, remaining borrowing capacity $ 1,211  
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%