2.4.0.811501 - Disclosure - Subsequent Eventstruefalsefalse1false falsefalseDuration_2_3_2013_To_8_3_2013http://www.sec.gov/CIK0001166126duration2013-02-03T00:00:002013-08-03T00:00:001true 1us-gaap_SubsequentEventsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Subsequent Events [Abstract]2false 2us-gaap_SubsequentEventsTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div style="margin-left:0pt;margin-right:0pt;"> 14.  Subsequ<a name="Subsequent_Event"></a>ent Event      As authorized by our Company’s Board of Directors, the Company adopted a Rights Agreement, dated as of August 22, 2013 (Rights Agreement), by and between the Company and Computershare Inc., as Rights Agent.  Pursuant to the terms of the Rights Agreement that expires on August 20, 2014, one preferred stock purchase right (a Right) was attached to each outstanding share of Common Stock of $0.50 par value of the Company (Common Stock) held by holders of record as of the close of business on September 3, 2013.  Additionally, the Company will issue one Right with each new share of Common Stock issued.  The Rights will initially trade with and be inseparable from our Common Stock and will not be evidenced by separate certificates unless they become exercisable.   Each Right entitles its holder to purchase from the Company 1/1000th of a share of a newly authorized series of participating preferred stock at an exercise price of $55.00, subject to adjustment in accordance with the terms of the Rights Agreement, once the Rights become exercisable.  In general terms, under the Rights Agreement, the Rights become exercisable if any person or group acquires 10% or more of the Common Stock or, in the case of any person or group that owned 10% or more of the Common Stock as of August 22, 2013, upon the acquisition of any additional shares by such person or group.  This does not include certain affiliates of Vornado Realty Trust so long as such party's beneficial ownership is permitted under such party's letter agreements with the Company.  In addition, the Company, its subsidiaries, employee benefit plans of the Company or any of its subsidiaries, and any entity holding Common Stock for or pursuant to the terms of any such plan, are excepted.  Upon exercise of the Right in accordance with the Rights Agreement, the holder would be able to purchase a number of shares of Common Stock from the Company having an aggregate market value (as defined in the Rights Agreement) equal to twice the then-current exercise price for an amount in cash equal to the then-current exercise price. The Rights will not prevent a takeover of our Company, but may cause substantial dilution to a person that acquires 10% or more of our Common Stock. </div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.No definition available.false0Subsequent Events [Text Block]falseSubsequent EventsUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.jcpenney.net/role/DisclosureSubsequentEvents12