Basis of Presentation and Consolidation (Nature of Operations) (Details) |
9 Months Ended |
|---|---|
Oct. 29, 2016 | |
| Entity Information [Line Items] | |
| State of incorporation | Delaware |
| J. C. Penney Corporation, Inc. [Member] | |
| Entity Information [Line Items] | |
| Year Incorporated | 1924 |
| J. C. Penney Company, Inc. [Member] | |
| Entity Information [Line Items] | |
| Year Incorporated | 2002 |