v3.25.2
Leases (Lease Balances) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Leases [Abstract]      
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Long-term portion, Other Accrued Liabilities, Current   Long-term portion, Other Accrued Liabilities, Current
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Current portion of debt and finance lease obligations (notes 9 and 10), Long-term debt and finance lease obligations   Current portion of debt and finance lease obligations (notes 9 and 10), Long-term debt and finance lease obligations
ROU assets:      
Operating leases $ 776.6   $ 710.5
Finance leases 39.4   38.2
Total ROU assets 816.0   748.7
Lease liabilities:      
Operating leases 828.7   753.1
Finance leases 34.9   34.1
Total lease liabilities $ 863.6   $ 787.2
Weighted average remaining lease term for operating leases 11 years    
Weighted average discount rate, for operating leases 5.40%    
Addition to ROU assets associated with operating leases $ 15.2 $ 75.5  
Weighted average remaining lease term for finance leases 7 years 8 months 12 days    
Weighted average discount rate, for finance leases 8.70%    
ROU assets associated with finance leases $ 0.0 $ 0.6