CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 01, 2014
Nov. 02, 2013
Nov. 01, 2014
Nov. 02, 2013
Statement of Comprehensive Income [Abstract]        
Net income/(loss) $ (188) $ (489) $ (712) $ (1,423)
Other comprehensive income/(loss), net of tax:        
Reclassification for amortization of net actuarial (gain)/loss 10 26 30 81
Reclassification for amortization of prior service (credit)/cost (1) 0 (1) (1)
Total other comprehensive income/(loss), net of tax 9 26 29 80
Total comprehensive income/(loss), net of tax $ (179) $ (463) $ (683) $ (1,343)