v2.4.0.6
Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Oct. 27, 2012
instrument
Jan. 28, 2012
Oct. 29, 2011
instrument
Financial assets and liabilities measured at fair value on a recurring basis      
Cash and cash equivalents $ 800 $ 194 $ 66
Other current assets 1,846 1,810 1,948
Other noncurrent assets 1,015 1,032 1,035
Other noncurrent liabilities 1,713 1,634 1,689
Number of derivative instruments designated as accounting hedge 1   1
Company-owned life insurance investments | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Company-owned life insurance investments 807 669 665
Interest Rate Swap
      
Financial assets and liabilities measured at fair value on a recurring basis      
Number of derivative instruments designated as accounting hedge 1 1 1
Level 1 | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Total 876 263 136
Level 1 | Short-term investments | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Cash and cash equivalents 800 194 66
Level 1 | Prepaid forward contracts | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Other current assets 76 69 70
Level 2 | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Total 359 505 507
Total 63 76 71
Level 2 | Company-owned life insurance investments | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Other noncurrent assets 258 371 365
Level 2 | Other assets | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Other current assets     6
Level 2 | Interest Rate Swap | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Other current assets 11 20  
Other noncurrent assets 90 114 136
Other current liabilities 4 7  
Other noncurrent liabilities $ 59 $ 69 $ 71