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Stockholders' Equity Share Repurchase Porgram Disclosures (Details) (USD $)
Share data in Millions, unless otherwise specified
 1 Months Ended 2 Months Ended 4 Months Ended 12 Months Ended 52 Months Ended
Sep. 30, 2011
Jul. 04, 2007
Jan. 28, 2012
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Sep. 13, 2011
Stockholders' Equity Disclosure [Abstract]              
Stock Repurchase Program, Authorized Amount $ 1,500,000,000 $ 1,500,000,000          
Purchase of treasury stock, net     182,500,000 629,041,000 398,582,000 30,661,000 1,280,000,000
Stock Repurchased During Period, Shares     12.6        
Stock Repurchase Program, Remaining Authorized Repurchase Amount     $ 1,320,000,000       $ 218,400,000