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Retirement Benefit Plans (Benefit Obligation Actuarial Assumptions) (Details)
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Feb. 01, 2014
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Feb. 02, 2013
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Sep. 30, 2012
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Jan. 28, 2012
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Oct. 15, 2011
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Jan. 29, 2011
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| Compensation and Retirement Disclosure [Abstract] | ||||||
| Discount rate | 4.89% | 4.19% | 4.25% | 4.82% | 5.06% | 5.65% |
| Salary progression rate | 3.50% | 4.70% | 4.70% |