Derivative Instruments (Realized and Unrealized Gains (Losses) on Derivatives) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Derivative [Line Items] | ||||
| Realized and unrealized gains (losses) on derivative instruments, net | $ (406.0) | $ 91.2 | $ (570.7) | $ 224.5 |
| Cross-currency and interest rate derivative contracts | ||||
| Derivative [Line Items] | ||||
| Realized and unrealized gains (losses) on derivative instruments, net | (323.2) | 103.2 | (433.9) | 280.3 |
| Equity-related derivative instruments | ||||
| Derivative [Line Items] | ||||
| Realized and unrealized gains (losses) on derivative instruments, net | (73.9) | (4.6) | (123.1) | (48.1) |
| Foreign currency forward and option contracts | ||||
| Derivative [Line Items] | ||||
| Realized and unrealized gains (losses) on derivative instruments, net | (9.0) | (7.4) | (13.7) | (7.7) |
| Other | ||||
| Derivative [Line Items] | ||||
| Realized and unrealized gains (losses) on derivative instruments, net | $ 0.1 | $ 0.0 | $ 0.0 | $ 0.0 |