CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Jul. 28, 2012
Consolidated Statements of Comprehensive Income/(Loss) [Abstract]        
Net income/(loss) $ (586) $ (147) $ (934) $ (310)
Other comprehensive income/(loss), net of tax:        
Unrealized gain/(loss) (3) 6   33
Reclassification adjustment for realized (gain)/loss   (174)   (174)
Reclassification for amortization of net actuarial loss/(gain) 27 37 55 77
Reclassification for amortization of prior service cost/(credit)   (2) (1) (4)
Total other comprehensive income/(loss), net of tax 24 (133) 54 (68)
Total comprehensive income/(loss), net of tax $ (562) $ (280) $ (880) $ (378)