Earnings/(Loss) per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Aug. 01, 2015 |
Aug. 02, 2014 |
Aug. 01, 2015 |
Aug. 02, 2014 |
|
| Earnings Per Share [Abstract] | ||||
| Net income/(loss) | $ (138) | $ (172) | $ (305) | $ (524) |
| Weighted average common shares outstanding (basic shares) | 305.9 | 305.2 | 305.7 | 305.1 |
| Weighted average shares assuming dilution (diluted shares) | 305.9 | 305.2 | 305.7 | 305.1 |
| Basic (in dollars per share) | $ (0.45) | $ (0.56) | $ (1.00) | $ (1.72) |
| Diluted (in dollars per share) | $ (0.45) | $ (0.56) | $ (1.00) | $ (1.72) |
| Stock options, restricted stock awards and warrant | 34.6 | 26.7 | 33.2 | 25.4 |