v2.4.0.6
Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Jul. 28, 2012
instrument
Jan. 28, 2012
Jul. 30, 2011
instrument
Financial assets and liabilities measured at fair value on a recurring basis      
Cash and cash equivalents $ 830 $ 194 $ 116
Other current assets 1,700 1,810 1,521
Other noncurrent assets 1,136 1,032 1,067
Other noncurrent liabilities 1,697 1,634 1,644
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 667 669 656
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 902 263 190
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 830 194 116
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 72 69 74
Level 2 | Fair value measured on recurring basis
      
Financial assets and liabilities measured at fair value on a recurring basis      
Total 498 505 512
Total 69 76 68
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 386 371 366
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 19 20  
Other noncurrent assets 93 114 140
Other current liabilities 7 7  
Other noncurrent liabilities $ 62 $ 69 $ 68