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 6 Months Ended
Aug. 02, 2014
Aug. 03, 2013
Aug. 02, 2014
Aug. 03, 2013
Other Comprehensive Income (Loss), Net of Tax [Abstract]        
Total, net of tax $ 10 $ 24 $ 20 $ 54
Reclassification out of Accumulated Other Comprehensive Income [Member]
       
Other Comprehensive Income (Loss), Net of Tax [Abstract]        
Total reclassifications 10 27 20 54
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 20 54
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) 16 44 33 88
Amortization of retirement benefit plans, Prior service cost/(credit) 3 2 4 3
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) $ (4) $ (4)