Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Retirement Benefit Plans (Benefit Obligation Actuarial Assumptions) (Details)
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Retirement Benefits [Abstract]      
Discount rate 3.98% 4.40% 4.73%
Salary progression rate 3.80% 3.90% 3.90%