Annual report pursuant to Section 13 and 15(d)

Retirement Benefit Plans (Benefit Obligation Actuarial Assumptions) (Details)

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Retirement Benefit Plans (Benefit Obligation Actuarial Assumptions) (Details)
Feb. 01, 2014
Feb. 02, 2013
Sep. 30, 2012
Jan. 28, 2012
Oct. 15, 2011
Jan. 29, 2011
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%