Derivative Instruments (Realized and Unrealized Gains (Losses) on Derivatives) (Schedule and Footnotes) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative [Line Items]
Gain (loss) on derivative instruments, net	$ 565.3	$ (34.4)
Cross-currency and interest rate derivative contracts
Derivative [Line Items]
Gain (loss) on derivative instruments, net	598.1	(66.9)
Equity-related derivative instruments
Derivative [Line Items]
Gain (loss) on derivative instruments, net	(43.5)	31.7
Foreign currency forward and option contracts
Derivative [Line Items]
Gain (loss) on derivative instruments, net	$ 10.7	$ 0.8