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RETIREMENT PLANS AND POSTRETIREMENT BENEFITS (Tables)
3 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic (Benefit) Cost
($ in millions)
Three Months
Ended March 31,
2025
Three Months Ended
March 31, 2024
Interest cost
$8.0
$5.6
Expected return on plan assets
(10.3)
(6.2)
Net periodic benefit
$(2.3)
$(0.6)