XML 107 R95.htm IDEA: XBRL DOCUMENT v3.25.4
Defined Benefit Plans - Obligations and Funded Status (Detail) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 30, 2023
Dec. 27, 2025
Dec. 28, 2024
Dec. 30, 2023
Change in the Projected Benefit Obligation (PBO):        
Actuarial gain   $ 0.0 $ 18.3 $ (0.5)
Change in Plan Assets:        
Beginning balance   177.1    
Settlements $ (2.0)      
Ending balance   188.3 177.1  
Pension Benefits [Member]        
Change in the Projected Benefit Obligation (PBO):        
Projected benefit obligation at beginning of year   206.5 509.7  
Service cost   0.0 0.0  
Interest cost   11.4 22.2  
Actuarial gain   (8.8) (23.9)  
Benefits paid   (10.6) (34.9)  
Plan amendments   0.0 0.0  
Settlements   0.0 (266.6)  
Projected benefit obligation at end of year 509.7 216.1 206.5 509.7
Accumulated benefit obligation at end of year (excludes the impact of future compensation increases)   216.1 206.5  
Change in Plan Assets:        
Beginning balance   177.1 468.0  
Actual return on plan assets   20.2 9.1  
Employer contributions   1.6 1.5  
Benefits paid   (10.6) (34.9)  
Settlements   0.0 (266.6)  
Ending balance 468.0 188.3 177.1 468.0
Funded status (Fair value of plan assets less PBO)   (27.8) (29.4)  
Postretirement Benefits [Member]        
Change in the Projected Benefit Obligation (PBO):        
Projected benefit obligation at beginning of year   5.6 8.0  
Service cost   0.1 0.4  
Interest cost   0.3 0.5  
Actuarial gain   (0.3) (0.4)  
Benefits paid   (0.2) (2.8)  
Plan amendments   0.1 0.0  
Settlements   0.0 (0.1)  
Projected benefit obligation at end of year 8.0 5.6 5.6 8.0
Accumulated benefit obligation at end of year (excludes the impact of future compensation increases)   0.0 0.0  
Change in Plan Assets:        
Beginning balance   0.0 0.0  
Employer contributions   1.0 1.2  
Benefits paid   (1.0) (1.2)  
Settlements   0.0 0.0  
Ending balance $ 0.0 0.0 0.0 $ 0.0
Funded status (Fair value of plan assets less PBO)   $ (5.6) $ (5.6)