Stockholders' Equity (Stock Warrant) (Details)
In Millions, unless otherwise specified
 0 Months Ended
Jun. 13, 2011
Stockholders Equity Disclosure [Abstract]  
Class of Warrant or Right, Title of Security Warrants or Rights Outstanding On June 13, 2011, we entered into a warrant purchase agreement with Ronald B. Johnson, pursuant to which he purchased a warrant to acquire approximately 7.3 million shares of J. C. Penney Company, Inc. common stock for a purchase price of approximately $50 million at a fair value of $6.89 per share.
Class of Warrant or Right, Date from which Warrants or Rights Exercisable Jun. 13, 2017
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 7.3
Rights Agreement, Exercise Price 29.92