v3.26.1
DEBT (Details 2) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Mar. 14, 2025
Oct. 11, 2022
Debt Instrument [Line Items]          
Proceeds from Issuance of Debt $ 576.6 $ 2,330.0      
Long-term Debt Repayments (374.3) (2,170.2)      
Proceeds from (Repayments of) Debt 202.3 159.8      
Repayments (374.3) (2,170.2)      
9.5% senior note          
Debt Instrument [Line Items]          
Long-term Debt Repayments 0.0 (108.6)      
Repayments 0.0 (108.6)      
5.125% senior note          
Debt Instrument [Line Items]          
Long-term Debt Repayments 0.0 (500.0)      
Repayments 0.0 (500.0)      
6.625% senior note          
Debt Instrument [Line Items]          
Proceeds from Issuance of Debt 0.0 600.0      
Long-Term Debt, Gross 600.0 600.0 $ 600.0    
Variable-rate Recovery Zone bonds          
Debt Instrument [Line Items]          
Long-Term Debt, Gross 83.0 83.0 $ 83.0    
$1,850.0 Million Secured Credit Facility          
Debt Instrument [Line Items]          
Senior Revolving Credit Facility, Remaining Borrowing Capacity 989.6        
$1,550.0 Million Secured Credit Facility          
Debt Instrument [Line Items]          
2022 Senior Credit Facility         $ 1,550.0
$1,200.0 million Senior Revolving Credit Facility          
Debt Instrument [Line Items]          
Senior Revolving Credit Facility, Maximum Borrowing Capacity       $ 1,200.0  
Senior Term Loan          
Debt Instrument [Line Items]          
Proceeds from Issuance of Debt 0.0 650.0      
Long-term Debt Repayments (109.7) (336.6)      
Repayments (109.7) (336.6)      
Long-Term Debt, Gross         650.0
Letters of Credit Issued Under Senior Revolving Credit Facility          
Debt Instrument [Line Items]          
Letters of Credit Outstanding, Amount 0.4        
$505.0 Million of Borrowings under Secured Credit Facility          
Debt Instrument [Line Items]          
2022 Senior Credit Facility         $ 505.0
Receivables Financing Agreement          
Debt Instrument [Line Items]          
Proceeds from Issuance of Debt 215.0 570.0      
Long-term Debt Repayments (113.0) (580.0)      
Repayments (113.0) (580.0)      
Senior Revolving Credit Facility          
Debt Instrument [Line Items]          
Proceeds from Issuance of Debt 361.6 510.0      
Long-term Debt Repayments (151.6) (645.0)      
Repayments (151.6) $ (645.0)      
5.125% senior note before paydown          
Debt Instrument [Line Items]          
Long-Term Debt, Gross $ 500.0