Derivative Instruments (Fair Values of Derivative Assets and Liabilities) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Assets:
Current	$ 212.1		$ 287.0
Long-term	394.1		556.9
Total	606.2		843.9
Liability:
Current	71.3		147.9
Long-term	26.2		38.5
Total	$ 97.5		$ 186.4
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent		Other Assets, Noncurrent
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent		Other Liabilities, Noncurrent
Cross-currency and interest rate derivative contracts
Assets:
Current	$ 184.8		$ 253.8
Long-term	242.2		369.4
Total	427.0		623.2
Liability:
Current	65.0		144.6
Long-term	26.1		38.5
Total	91.1		183.1
Gain (loss) on change in credit risk valuation included in realized and unrealized gains (losses) on derivative instruments, net	4.2	$ (3.3)
Equity-related derivative instruments
Assets:
Current	21.9		26.1
Long-term	151.9		187.3
Total	173.8		213.4
Foreign currency forward and option contracts
Assets:
Current	5.4		6.5
Long-term	0.0		0.0
Total	5.4		6.5
Liability:
Current	6.2		3.3
Long-term	0.0		0.0
Total	6.2		3.3
Other
Assets:
Current	0.0		0.6
Long-term	0.0		0.2
Total	0.0		0.8
Liability:
Current	0.1		0.0
Long-term	0.1		0.0
Total	$ 0.2		$ 0.0