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RESTRUCTURING CHARGES (Tables)
6 Months Ended 55 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Restructuring and Related Activities [Abstract]    
Schedule of Restructuring Reserve by Type of Cost
The following table summarizes the 2024 and 2023 activities by major component of these restructuring actions and the remaining balances of accrued restructuring costs as of June 30, 2024 and 2023:
 Employee Severance and Related Benefit CostsLease and Other Contract Termination CostsFacility Exit CostsWrite-off of Equipment and FacilityTotal
 ($ in millions)
Balance at January 1, 2023$9.4 $4.2 $— $— $13.6 
Restructuring charges:
First quarter— 39.7 8.4 12.8 60.9 
Second quarter3.3 1.7 9.3 4.9 19.2 
Amounts utilized(1.4)(7.2)(17.7)(17.7)(44.0)
Balance at June 30, 2023$11.3 $38.4 $— $— $49.7 
Balance at January 1, 2024$10.8 $16.7 $— $— $27.5 
Restructuring charges:
First quarter— — 8.3 — 8.3 
Second quarter— 1.7 5.1 — 6.8 
Amounts utilized(7.4)(5.6)(13.4)— (26.4)
Balance at June 30, 2024$3.4 $12.8 $— $— $16.2 
 
Cumulative Restructuring Charges by Type and Plan Pretax restructuring charges, by plan, for the three and six months ended June 30, 2024 and 2023, were as follows:
 Three Months Ended June 30,Six Months Ended June 30,
 2024202320242023
Pretax Restructuring Charges($ in millions)
Epoxy Optimization Plan$5.8 $13.3 $9.3 $71.1 
McIntosh Plan0.1 2.5 2.0 3.9 
Freeport 2021 Plan
0.3 1.4 0.7 2.1 
Freeport 2019 Plan0.6 2.0 3.1 3.0 
Total restructuring charges$6.8 $19.2 $15.1 $80.1 
The following table summarizes the cumulative restructuring charges of these restructuring actions by major component through June 30, 2024:
Chlor Alkali Products and VinylsEpoxyTotal
 McIntosh PlanFreeport 2021 PlanFreeport 2019 PlanEpoxy Optimization Plan
 ($ in millions)
Write-off of equipment and facility$2.7 $— $58.9 $18.3 $79.9 
Employee severance and related benefit costs— — 2.1 15.8 17.9 
Facility exit costs11.4 13.8 22.2 25.9 73.3 
Lease and other contract termination costs6.4 — — 30.8 37.2 
Total cumulative restructuring charges$20.5 $13.8 $83.2 $90.8 $208.3