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Valuation and Qualifying Accounts and Reserves (Schedule II)
 12 Months Ended
Dec. 31, 2024
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts and Reserves (Schedule II) Financial Statement Schedule
Schedule II — Valuation and Qualifying Accounts and Reserves for the years ended December 31, 2024, 2023 and 2022 is set forth below. All other schedules for which provision is made in the applicable SEC accounting regulations are not required under the related instructions or are inapplicable and therefore have been omitted.
Valuation and Qualifying Accounts and Reserves
(Schedule II)

Changes in deferred tax asset valuation allowances were as follows:
(millions of dollars)202420232022
Beginning balance$106.6 $97.5 $97.2 
Additions (deductions) (1)
17.9 9.1 0.3 
Ending balance$124.5 $106.6 $97.5 
(1)    Additions (deductions) did not have a material impact on the Income Statement in 2024, 2023 or 2022.