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Earnings Per Share And Shareholders' Equity (Schedule of Company's Repurchase Program) (Details) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 9 Months Ended 0 Months Ended 9 Months Ended
Nov. 02, 2013
Oct. 27, 2012
Oct. 27, 2012
November 2011 [Member]
Nov. 12, 2012
February 2012 Repurchase Program [Member]
Oct. 27, 2012
February 2012 Repurchase Program [Member]
Nov. 02, 2013
November 2012 Repurchase Program [Member]
Oct. 27, 2012
Accounts Payable [Member]
February 2012 Repurchase Program [Member]
Nov. 02, 2013
Accounts Payable [Member]
November 2012 Repurchase Program [Member]
Amount Authorized     $ 250   $ 500 [1] $ 250 [2]    
Shares Repurchased 1,217 13,473 3,657   9,816 1,217    
Amount Repurchased 55 612 164   448 55    
Average Stock Price of Shares Repurchased within Program     $ 44.90   $ 45.60 $ 44.91    
Remaining authorized repurchase amount       50   184    
Share repurchase reflected in Accounts payable             $ 0 $ 0
[1] The February 2012 repurchase program had $50 million remaining at the time it was cancelled in conjunction with the approval of the November 2012 repurchase program.
[2] The November 2012 repurchase program had $184 million remaining as of November 2, 2013.