Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Assets
Cash and Cash Equivalents	$ 479.1	$ 450.7
Restricted Cash	0.1	0.1
Receivables
Rent and other receivables	96.3	87.9
Finance leases (as lessor)	137.3	136.4
Less: allowance for losses	(6.1)	(5.9)
Receivables, net	227.5	218.4
Property, Plant and Equipment, Net [Abstract]
Operating Assets and Facilities	13,320.1	13,081.9
Less: allowance for depreciation	(3,700.3)	(3,670.7)
Operating assets and facilities, net	9,619.8	9,411.2
Lease Assets (as lessee)
Right-of-use assets, net of accumulated depreciation	203.5	212.0
Lease assets	203.5	212.0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	647.6	627.0
Goodwill	118.0	120.0
Other Assets	283.5	286.6
Total Assets	11,579.1	11,326.0
Liabilities and Shareholders’ Equity
Accounts Payable and Accrued Expenses	208.2	239.6
Debt
Commercial paper and borrowings under bank credit facilities	10.8	11.0
Recourse	7,624.5	7,388.1
Commercial paper and borrowings under bank credit facilities	7,635.3	7,399.1
Lease, Liability [Abstract]
Operating leases	215.2	226.8
Lease obligations	215.2	226.8
Deferred Income Tax Liabilities, Net	1,096.2	1,081.1
Other Liabilities	99.9	106.4
Total Liabilities	9,254.8	9,053.0
Shareholders’ Equity
Common stock, $0.625 par value: Authorized shares — 120,000,000 Issued shares — 67,325,950 and 67,083,149 Outstanding shares — 37,632,377 and 37,895,641	42.6	42.5
Additional paid in capital	828.8	816.1
Retained earnings	3,062.4	3,009.5
Accumulated other comprehensive loss	$ (177.4)	$ (167.6)
Treasury Stock, Common, Shares	33,368,930	33,332,186
Treasury stock at cost (29,693,573 and 29,187,508 shares)	$ (1,432.1)	$ (1,427.5)
Total Shareholders’ Equity	2,324.3	2,273.0
Total Liabilities and Shareholders’ Equity	$ 11,579.1	$ 11,326.0
Common Stock, Shares Authorized	120,000,000
Common Stock, Par or Stated Value Per Share	$ 0.625
Common Stock, Shares, Outstanding	35,577,357	35,464,841