v3.26.3
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 07, 2022
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Income Tax Contingency [Line Items]          
Effective tax rate   623.60% 36.00% (483.10%) 2.70%
Income tax benefit   $ (652.3) $ (46.9) $ (454.1) $ (116.0)
Effective income tax (benefit) expense   (15.7) (19.6) $ 14.1 (644.5)
Tax Jurisdiction of Domicile [Extensible Enumeration]       BERMUDA  
Unrecognized tax benefits   151.4   $ 151.4  
UTB that would impact effective tax rate   92.1   92.1  
Income tax penalties and interest expense $ 110.0        
Income tax contingency | Tax Year 2018          
Income Tax Contingency [Line Items]          
Damages sought $ 284.0        
Netherlands          
Income Tax Contingency [Line Items]          
Valuation allowances   $ 709.3   $ 709.3  
Valuation allowances, percent   678.10%   754.60%  
United States          
Income Tax Contingency [Line Items]          
Effective income tax rate reconciliation, derecognition of litigation-related receivable, amount       $ 133.3  
Effective income tax rate reconciliation, derecognition of litigation-related receivable, percent       141.80%  
U.K.          
Income Tax Contingency [Line Items]          
Valuation allowances     $ 23.0   $ 899.9
Valuation allowances, percent     17.70%   20.90%
Foreign exchange (loss) gains     $ (46.4)    
Effective income tax rate reconciliation, foreign currency translation, percent     35.60%    
Effective income tax rate reconciliation, foreign income tax rate differential, amount     $ 14.5   $ 406.8
Effective income tax rate reconciliation, foreign income tax rate differential, percent     11.10%   9.50%
U.K. and Netherlands          
Income Tax Contingency [Line Items]          
Non-deductible net losses from foreign investments     $ 9.2   $ 122.0
Non-deductible net income (losses) from foreign investments (as a percent)     7.10%   2.80%
Luxembourg          
Income Tax Contingency [Line Items]          
Valuation allowances         $ 86.0
Valuation allowances, percent         2.00%