XML 99 R85.htm IDEA: XBRL DOCUMENT v3.10.0.1
BENEFIT PLANS - Narrative (Details)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 26, 2019
USD ($)
employee
agreement
Jan. 27, 2018
USD ($)
Jan. 26, 2019
USD ($)
employee
agreement
Jan. 27, 2018
USD ($)
Aug. 01, 2020
agreement
employee
Aug. 03, 2019
agreement
employee
Oct. 22, 2018
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Multiemployer Plans, Withdrawal Obligation $ 35.7   $ 35.7        
Impact to service and interest cost with a 100 basis point increase in the trend rate     0.0        
Company's accumulated postretirement benefit obligation would impact due to a 100 basis point decrease in the trend rate     2.7        
Company's accumulated postretirement benefit obligation would impact due to a 100 basis point increase in the trend rate     3.2        
Employer contribution in defined contribution plans   $ 5.6 $ 10.4        
Company's number of employees (employees) | employee 20,400   20,400        
Number of employees covered by collective bargaining agreements (employees) | employee 5,000   5,000        
Number of collective bargaining agreements for covered employees (agreements) | agreement 46   46        
Number of initial collective bargaining agreements (agreements) | agreement 3   3        
Number of employees covered by initial collective bargaining agreements (employees) | employee 30   30        
Number of collective bargaining agreements covering employees renegotiated (agreements) | agreement     8        
Number of employees renegotiated collective bargaining agreement (employees) | employee     800        
Number of collective bargaining agreements covering employees expired without renegotiated (agreements) | agreement     0        
Maximum              
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Expected employer contributions in current fiscal year $ 10.0   $ 10.0        
Minimum              
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Expected employer contributions in current fiscal year 5.0   5.0        
Multiemployer Postretirement Benefit              
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Contribution to multi-employer plans $ 7.6 $ 0.0 $ 0.0 $ 0.0      
Post-Employment Benefits | Retirement Plan, Before Age 65 [Member]              
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Assumed healthcare cost trend rate             7.80%
Assumed healthcare cost ultimate trend rate             4.50%
Post-Employment Benefits | Retirement Plan, After Age 65 [Member]              
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Assumed healthcare cost trend rate             8.70%
Assumed healthcare cost ultimate trend rate             4.50%
Scenario, Forecast [Member]              
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Number of collective bargaining agreements covering employees expired (agreements) | agreement         6 11  
Number of employee expire collective bargaining agreement (employees) | employee         500 1,100