Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Stockholders' Equity (Reclassifications Out of Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
May 03, 2014
May 04, 2013
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Total, net of tax $ 10 $ 30
Reclassification out of Accumulated Other Comprehensive Income [Member]
   
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Total reclassifications 10 27
Reclassification out of Accumulated Other Comprehensive Income [Member] | Total Amortization Of Retirement Benefit Plans, Net Of Tax [Member]
   
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Total, net of tax 10 27
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension [Member]
   
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Amortization of retirement benefit plans, Actuarial loss/(gain) 17 44
Amortization of retirement benefit plans, Prior service cost/(credit) 1 1
Reclassification out of Accumulated Other Comprehensive Income [Member] | SG&A [Member]
   
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Amortization of retirement benefit plans, Prior service cost/(credit) (2) (2)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Income Tax Expense/(Benefit) [Member]
   
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Amortization of retirement benefit plans, Tax (expense)/benefit $ (6) $ (16)