Note 6. Railcar Leasing and Management Services Group Selected Leasing Balance Sheet Information (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents		$ 167.3	$ 132.0
Accounts receivable		227.6	164.4
Property, plant, and equipment, net		6,846.9	6,968.8
Restricted cash		135.1	96.4
Other assets		266.5	283.5
Total assets		8,235.9	8,701.8
Debt, net		5,170.6	5,017.0
Deferred income taxes		1,106.8	1,047.5
Other liabilities		147.9	146.7
Total liabilities		6,939.1	6,685.8
Noncontrolling interest		267.0	277.2
Total Equity		1,029.8	1,738.8
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		8,649.8	8,510.7
Operating Segments [Member] | Railcar Leasing and Management Services Group [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents		3.4	3.5
Accounts receivable		100.8	90.4
Property, plant, and equipment, net		7,276.7	7,422.2	[1]
Restricted cash		135.1	96.3
Other assets		69.4	39.7
Total assets		7,585.4	7,652.1
Accounts payable and accrued liabilities		143.5	172.3
Debt, net		4,771.9	4,568.8
Deferred income taxes		1,115.3	1,063.4
Other liabilities		35.6	25.7
Total liabilities		6,066.3	5,830.2
Noncontrolling interest		267.0	277.2
Total Equity		1,252.1	1,544.7
Intersegment Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Property, plant, and equipment, net		(779.1)	(820.3)
Wholly Owned Subsidiaries [Member] | Operating Segments [Member] | Railcar Leasing and Management Services Group [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents		3.4	3.5
Accounts receivable		90.7	82.0
Property, plant, and equipment, net		5,706.1	5,795.9	[1]
Restricted cash		76.5	65.2
Other assets		67.3	38.1
Total assets		5,944.0	5,984.7
Accounts payable and accrued liabilities		113.4	141.4
Debt, net		3,555.8	3,340.5
Deferred income taxes		1,114.2	1,062.3
Other liabilities		35.6	25.7
Total liabilities		4,819.0	4,569.9
Noncontrolling interest		0.0	0.0
Total Equity		1,125.0	1,414.8
Partially-Owned Subsidiaries [Member] | Operating Segments [Member] | Railcar Leasing and Management Services Group [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents		0.0	0.0
Accounts receivable		10.1	8.4
Property, plant, and equipment, net		1,570.6	1,626.3	[1]
Restricted cash		58.6	31.1
Other assets		2.1	1.6
Total assets		1,641.4	1,667.4
Accounts payable and accrued liabilities		30.1	30.9
Debt, net		1,216.1	1,228.3
Deferred income taxes		1.1	1.1
Other liabilities		0.0	0.0
Total liabilities		1,247.3	1,260.3
Noncontrolling interest		267.0	277.2
Total Equity		127.1	129.9
Consolidated Subsidiaries, Leasing [Member] | Intersegment Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents		0.0	0.0
Accounts receivable		0.0	0.0
Property, plant, and equipment, net	[2]	(779.1)	(820.3)	[1]
Restricted cash		0.0	0.0
Other assets		0.0	0.0
Total assets	[2]	(779.1)	(820.3)
Accounts payable and accrued liabilities		0.0	0.0
Debt, net		0.0	0.0
Deferred income taxes	[2]	(176.6)	(186.2)
Other liabilities		0.0	0.0
Total liabilities	[2]	(176.6)	(186.2)
Noncontrolling interest		0.0	0.0
Total Equity	[2]	(602.5)	(634.1)
Railcar Leasing and Management Services Group [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents		3.4	3.5
Accounts receivable		100.8	90.4
Property, plant, and equipment, net		6,497.6	6,601.9	[1]
Restricted cash		135.1	96.3
Other assets		69.4	39.7
Total assets		6,806.3	6,831.8
Accounts payable and accrued liabilities		143.5	172.3
Debt, net		4,771.9	4,568.8
Deferred income taxes		938.7	877.2
Other liabilities		35.6	25.7
Total liabilities		5,889.7	5,644.0
Noncontrolling interest		267.0	277.2
Total Equity		$ 649.6	$ 910.6

[1] See Note 11 for further information regarding impairment of long-lived assets recorded in the year ended December 31, 2020.

[2] Net deferred profit on railcars sold to the Leasing Group consists of intersegment profit that is eliminated in consolidation. Net deferred profit and the related deferred tax impact are included as adjustments to the property, plant, and equipment, net and deferred income taxes line items, respectively, in the Eliminations – Lease Subsidiary column above to reflect the net book value of the railcars purchased by the Leasing Group from the Rail Products Group based on manufacturing cost. See Note 5 and Note 8 for a further discussion regarding our investment in our partially-owned leasing subsidiaries and the related indebtedness.