CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 31, 2015
Nov. 01, 2014
Oct. 31, 2015
Nov. 01, 2014
Statement of Comprehensive Income [Abstract]        
Net income/(loss) $ (137) $ (188) $ (442) $ (712)
Other comprehensive income/(loss), net of tax:        
Reclassification for amortization of net actuarial (gain)/loss 18 10 53 30
Reclassification for amortization of prior service (credit)/cost 0 (1) 0 (1)
Net gain/(loss) on interest rate swaps (6) 0 (12) 0
Total other comprehensive income/(loss), net of tax 12 9 41 29
Total comprehensive income/(loss), net of tax $ (125) $ (179) $ (401) $ (683)