v2.4.0.6
Fair Value Measurements (Details 3) (USD $)
In Millions, unless otherwise specified
Jan. 28, 2012
Jan. 29, 2011
Financial assets    
Marketable securities, noncurrent $ 1,032 $ 999
Carrying amount
   
Financial assets    
Marketable securities, current 35 32
Marketable securities, noncurrent 6 4
Total 41 36
Financial liabilities    
Total debt 15,680 15,241
Total 15,680 15,241
Fair value measurement
   
Financial assets    
Marketable securities, current 35 32
Marketable securities, noncurrent 6 4
Total 41 36
Financial liabilities    
Total debt 18,142 16,661
Total $ 18,142 $ 16,661