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Variable Interest Entities (Tables)
12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Variable Interest Entities
The following table presents information regarding activity in the Company’s Alternative Energy Partnership Investments as of the periods indicated:
Year Ended
(Dollars in millions)Dec 31, 2022Dec 31, 2021
Fundings$— $80.0 
Cash distribution from investment3.3 0.5 
Loss on investments in Alternative Energy Partnership(19.9)(61.2)
Income tax credits recognized4.3 73.9 
Tax benefit recognized from Alternative Energy Partnership3.7 5.1 
The following table represents the carrying value of the associated assets and liabilities and the associated maximum loss exposure of the Alternative Energy Partnership Investments as of the dates indicated:
(Dollars in millions)Dec 31, 2022
Cash$3.0 
Equipment, net of depreciation261.7 
Other assets5.1 
Total unconsolidated assets269.7 
Maximum loss exposure16.3