Derivative Instruments (Realized and Unrealized Gains (Losses) on Derivatives) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	$ 1,191.7	$ 622.9	$ (878.7)
Cross-currency and interest rate derivative contracts
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	1,185.5	578.9	(1,184.3)
Foreign currency forward and option contracts
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	28.3	(31.8)	(81.1)
ITV Collar
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	0.0	(11.8)	364.2
Other
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	(21.4)	85.6	22.5
Total equity-related derivative instruments
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	(21.4)	73.8	386.7
Other
Derivative [Line Items]
Realized and unrealized losses (gains) on derivative instruments, net	$ (0.7)	$ 2.0	$ 0.0