v2.4.0.6
Share Repurchase (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Oct. 27, 2012
Oct. 29, 2011
Oct. 27, 2012
Oct. 29, 2011
Jan. 28, 2012
Nov. 30, 2007
2007 Share Repurchase Program
Jan. 28, 2012
2012 Share Repurchase Program
Oct. 27, 2012
Cash investment
Oct. 29, 2011
Cash investment
Oct. 27, 2012
Cash investment
Oct. 29, 2011
Cash investment
Oct. 27, 2012
Prepaid forward contracts market value
Oct. 29, 2011
Prepaid forward contracts market value
Oct. 27, 2012
Prepaid forward contracts market value
Oct. 29, 2011
Prepaid forward contracts market value
Share Repurchase Information                              
Amount approved by board of directors for share repurchase program           $ 10,000,000,000 $ 5,000,000,000                
Total Number of Shares Purchased 1.7 4.5 21.8 34.1                      
Repurchase of stock, average price per share (in dollars per share) $ 62.90 $ 50.45 $ 57.53 $ 50.76                      
Total Investment 104,000,000 226,000,000 1,255,000,000 1,733,000,000                      
Stock repurchased, delivered upon settlement of prepaid forward contracts 0.1 0.5 0.5 0.8                      
Repurchase of stock     1,259,000,000   1,894,000,000     4,000,000 26,000,000 25,000,000 40,000,000        
Stock repurchased, delivered upon settlement of prepaid forward contracts                       $ 5,000,000 $ 26,000,000 $ 29,000,000 $ 40,000,000