XML 99 R76.htm IDEA: XBRL DOCUMENT v3.19.1
Pension Plans and Other Retirement Benefits - Weighted Average Assumptions for Obligation (Detail)
Feb. 02, 2019
Nov. 03, 2018
Sep. 30, 2018
Feb. 03, 2018
Funded Plan        
Defined Benefit Plan Disclosure [Line Items]        
Discount rate 4.30% 4.40% 4.00% 4.00%
Rate of compensation increase 4.00%     4.00%
Unfunded Plan        
Defined Benefit Plan Disclosure [Line Items]        
Discount rate 4.10%     3.80%
Rate of compensation increase 6.00%     6.00%