Stockholders' Equity (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
May 04, 2013
Apr. 28, 2012
Balance as of the beginning of the period $ 3,171  
Net income/(loss) (348) (163)
Other comprehensive income/(loss) 30 65
Stock-based compensation 13  
Balance as of the end of the period 2,866  
Common Stock [Member]
   
Shares balance as of the beginning of the period 219.3  
Balance as of the beginning of the period 110  
Stock-based compensation, shares 0.6  
Shares balance as of the end of the period 219.9  
Balance as of the end of the period 110  
Additional Paid-in Capital [Member]
   
Balance as of the beginning of the period 3,799  
Stock-based compensation 13  
Balance as of the end of the period 3,812  
Reinvested Earnings/(Loss) [Member]
   
Balance as of the beginning of the period 380  
Net income/(loss) (348)  
Balance as of the end of the period 32  
Accumulated Other Comprehensive Income/(Loss) [Member]
   
Balance as of the beginning of the period (1,118)  
Other comprehensive income/(loss) 30  
Balance as of the end of the period $ (1,088)