Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Accumulated Other Comprehensive Income/ (Loss) (Details)

v2.4.0.8
Stockholders' Equity (Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
May 03, 2014
May 04, 2013
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
February 1, 2014 $ (628)  
Amounts reclassified from accumulated other comprehensive income, Net Actuarial Gain/(Loss) 11 28
Amounts reclassified from accumulated other comprehensive income, Prior Service Credit/(Cost) (1) (1)
Net current-period other comprehensive income 10 30
May 3, 2014 (618) (1,088)
Net Actuarial Gain/(Loss) [Member]
   
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
February 1, 2014 (609)  
Amounts reclassified from accumulated other comprehensive income, Net Actuarial Gain/(Loss) 11  
Net current-period other comprehensive income 11  
May 3, 2014 (598)  
Prior Service Credit/(Cost) [Member]
   
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
February 1, 2014 (19)  
Amounts reclassified from accumulated other comprehensive income, Prior Service Credit/(Cost) (1)  
Net current-period other comprehensive income (1)  
May 3, 2014 (20)  
Accumulated Other Comprehensive Income/(Loss) [Member]
   
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
February 1, 2014 (628)  
Amounts reclassified from accumulated other comprehensive income, Accumulated Other Comprehensive Income/(Loss) 10  
Net current-period other comprehensive income 10  
May 3, 2014 $ (618)