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Leases (Tables)
 12 Months Ended
Dec. 31, 2024
Leases [Abstract]  
Lease Cost Income statement presentation for these costs (when ultimately recognized on the income statement) is also included:
Year Ended December 31, (in millions)
Income Statement Classification20242023
Finance lease cost
Amortization of right-of-use assetsDepreciation and amortization$27.1 $32.0 
Interest on lease liabilitiesInterest expense, net13.5 8.6 
Total finance lease cost40.6 40.6 
Operating lease costOperation and maintenance14.7 11.3 
Total lease cost$55.3 $51.9 
Right-of-Use Assets and Liabilities
Our right-of-use assets and liabilities are presented in the following lines on the Consolidated Balance Sheets:
At December 31, (in millions)
Balance Sheet Classification20242023
Assets
Finance leasesNet Property, Plant and Equipment$222.9 $184.3 
Operating leasesDeferred charges and other26.4 32.9
Total leased assets$249.3 217.2
Liabilities
Current
Finance leasesCurrent portion of long-term debt$22.9 23.8
Operating leasesOther accruals9.1 8.3
Noncurrent
Finance leasesLong-term debt, excluding amounts due within one year223.3 181.6
Operating leases
Other noncurrent liabilities and deferred credits
18.2 25.8
Total lease liabilities$273.5 $239.5 
Lease Information
Other pertinent information related to leases was as follows:
Year Ended December 31, (in millions)
20242023
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for finance leases$11.2 $9.3 
Operating cash flows used for operating leases14.5 11.1
Financing cash flows used for finance leases26.9 33.1
Right-of-use assets obtained in exchange for lease obligations
Finance leases65.9 64.5
Operating leases$12.2 $5.6 
December 31, 2024December 31, 2023
Weighted-average remaining lease term (years)
Finance leases20.516.4
Operating leases5.66.7
Weighted-average discount rate
Finance leases5.6 %5.5 %
Operating leases4.5 %4.3 %
Lease Maturity
Maturities of our lease liabilities as of December 31, 2024 were as follows:
As of December 31, 2024, (in millions)
TotalFinance LeasesOperating Leases
2025$44.6 $34.6 $10.0 
202634.7 29.4 5.3 
202728.5 24.2 4.3 
202826.1 23.0 3.1 
202921.5 19.0 2.5 
Thereafter304.9 299.2 5.7 
Total lease payments460.3 429.4 30.9 
Less: Imputed interest(186.8)(183.2)(3.6)
Total
$273.5 $246.2 $27.3 
Reported as of December 31, 2024
Short-term lease liabilities32.0 22.9 9.1 
Long-term lease liabilities241.5 223.3 18.2 
Total lease liabilities$273.5 $246.2 $27.3