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Supplemental Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2023
Supplemental Cash Flow Information [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures
The following table provides additional information regarding our Consolidated Statements of Cash Flows for the years ended December 31, 2023, 2022 and 2021:
Year Ended December 31, (in millions)
202320222021
Supplemental Disclosures of Cash Flow Information
Non-cash transactions:
Capital expenditures included in current liabilities$315.0 $275.1 $245.7 
Assets acquired under a finance lease64.5 19.3 22.4 
Assets acquired under an operating lease5.6 8.8 6.0 
Reclassification of other property to regulatory assets(1)
— — 607.6 
Assets recorded for asset retirement obligations(2)
61.1 6.3 12.0 
Obligation to developer at formation of JV(3)
— — 277.5 
Purchase contract liability, net of fees and payments(4)
— 65.0 129.4 
Schedule of interest and income taxes paid:
Cash paid for interest on debt, net of interest capitalized amounts
$433.9 $343.8 $322.4 
Cash paid for interest on finance leases8.6 8.5 9.4 
Cash paid for income taxes, net of refunds
9.4 7.2 5.4 
(1)See Note 12, "Regulatory Matters," for additional information.
(2)See Note 11, "Asset Retirement Obligations," for additional information.
(3)Represents investing non-cash activity. See Note 4, "Noncontrolling Interest," for additional information.
(4)Refer to Note 6, "Equity," for additional information.