v3.25.2
Derivative Instruments (Fair Values of Derivative Assets and Liabilities) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Assets:          
Current $ 211.7   $ 211.7   $ 287.0
Long-term 110.3   110.3   556.9
Total 322.0   322.0   843.9
Liability:          
Current 185.0   185.0   147.9
Long-term 148.2   148.2   38.5
Total $ 333.2   $ 333.2   $ 186.4
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Assets, Noncurrent   Other Assets, Noncurrent   Other Assets, Noncurrent
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Liabilities, Noncurrent   Other Liabilities, Noncurrent   Other Liabilities, Noncurrent
Cross-currency and interest rate derivative contracts          
Assets:          
Current $ 159.9   $ 159.9   $ 253.8
Long-term 110.2   110.2   369.4
Total 270.1   270.1   623.2
Liability:          
Current 156.5   156.5   144.6
Long-term 148.0   148.0   38.5
Total 304.5   304.5   183.1
Gain (loss) on change in credit risk valuation included in realized and unrealized gains (losses) on derivative instruments, net 5.2 $ (2.2) 9.4 $ (5.5)  
Equity-related derivative instruments          
Assets:          
Current 29.3   29.3   26.1
Long-term 0.0   0.0   187.3
Total 29.3   29.3   213.4
Foreign currency forward and option contracts          
Assets:          
Current 15.6   15.6   6.5
Long-term 0.0   0.0   0.0
Total 15.6   15.6   6.5
Liability:          
Current 21.8   21.8   3.3
Long-term 0.0   0.0   0.0
Total 21.8   21.8   3.3
Other          
Assets:          
Current 6.9   6.9   0.6
Long-term 0.1   0.1   0.2
Total 7.0   7.0   0.8
Liability:          
Current 6.7   6.7   0.0
Long-term 0.2   0.2   0.0
Total $ 6.9   $ 6.9   $ 0.0