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INCOME TAXES (Tables)
6 Months Ended
Jun. 30, 2024
Income Tax Disclosure [Abstract]  
Unrecognized Tax Benefits The amounts of unrecognized tax benefits were as follows:
Six Months Ended June 30,
 20242023
Unrecognized Tax Benefits($ in millions)
Balance at beginning of year$50.3 $51.6 
Increases for prior year tax positions2.7 1.3 
Decreases for prior year tax positions(0.4)(0.3)
Increases for current year tax positions0.7 5.4 
Decreases due to tax settlements(1.0)— 
Foreign currency translation adjustments(1.1)0.7 
Balance at end of period$51.2 $58.7 
Tax Returns Subject to Examination
For our primary tax jurisdictions, the tax years that remain subject to examination are as follows:
Tax Years
U.S. federal income tax2020 - 2023
U.S. state income tax2012 - 2023
Canadian federal income tax2017 - 2023
Brazil2017 - 2023
Germany2015 - 2023
China2014 - 2023
The Netherlands2017 - 2023