Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Retirement Benefit Plans (Benefit Obligation Actuarial Assumptions) (Details)
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Compensation and Retirement Disclosure [Abstract]      
Discount rate 4.73% 3.87% 4.89%
Salary progression rate 3.90% 3.50% 3.50%