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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2022
Income Tax Disclosure [Abstract]  
Reconciliation of Liability for Uncertain Tax Positions
The following is a reconciliation of the liability for uncertain tax positions (in millions):
Balance at December 31, 2021$147.0 
Additions for tax positions23.5 
Reductions for tax positions(0.5)
Balance at September 30, 2022$170.0