v3.26.1
OTHER COMPREHENSIVE INCOME OR LOSS (Details) - USD ($)
$ in Millions
 12 Months Ended
Feb. 28, 2026
Feb. 22, 2025
Feb. 24, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 3,385.9 $ 2,747.5 $ 1,610.7
Other comprehensive income before reclassifications 17.3 9.8  
Amounts reclassified from Accumulated other comprehensive income (32.5) (0.8)  
Tax benefit 3.7 (2.3)  
Other comprehensive (loss) income (11.5) 6.7 18.7
Ending balance 1,836.2 3,385.9 2,747.5
Accumulated other comprehensive income      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 94.7 88.0 69.3
Ending balance 83.2 94.7 88.0
Pension and Post-retirement benefit plan items      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 92.4 87.5  
Other comprehensive income before reclassifications 18.6 7.4  
Amounts reclassified from Accumulated other comprehensive income (32.5) (0.8)  
Tax benefit 3.7 (1.7)  
Other comprehensive (loss) income (10.2) 4.9  
Ending balance 82.2 92.4 87.5
Other      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 2.3 0.5  
Other comprehensive income before reclassifications (1.3) 2.4  
Amounts reclassified from Accumulated other comprehensive income 0.0 0.0  
Tax benefit 0.0 (0.6)  
Other comprehensive (loss) income (1.3) 1.8  
Ending balance $ 1.0 $ 2.3 $ 0.5