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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2023
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, 2022$174.7 
Additions for tax positions16.4 
Reductions for tax positions 
Balance at June 30, 2023$191.1