Consolidated Statements of Operations Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues	$ 3,005.1	$ 2,509.1	$ 2,397.4
Cost of Goods and Services Sold	2,365.7	1,938.8	1,775.2
Selling, General and Administrative Expense	262.8	296.6	339.3
Gain (Loss) on Sale of Property, Plant and Equipment, Railroad Transportation Equipment	50.5	50.4	83.5
Gain (Loss) on Disposition of Other Assets	3.9	(9.0)	1.9
Gain (Loss) on Disposition of Property Plant Equipment	54.4	41.4	85.4
Restructuring Charges	14.7	0.0	0.0
Operating Income (Loss)	416.3	315.1	368.3
Investment Income, Interest	(7.3)	(11.9)	(10.4)
Interest Expense	221.8	179.3	184.0
Other Nonoperating Income (Expense)	1.1	(3.9)	(0.7)
Other Nonoperating Expense	215.6	163.5	172.9
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	200.7	151.6	195.4
Current Income Tax Expense (Benefit)	6.7	(15.3)	(57.7)
Deferred Income Tax Expense (Benefit)	54.8	57.9	(357.1)
Income Tax Expense (Benefit)	61.5	42.6	(414.8)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	139.2	109.0	610.2
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(3.1)	54.1	103.4
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	136.1	163.1	713.6
Net Income (Loss) Attributable to Noncontrolling Interest	(1.5)	3.8	11.1
Net Income (Loss) Attributable to Parent	$ 137.6	$ 159.3	$ 702.5
Income (Loss) from Continuing Operations, Per Basic Share	$ 1.11	$ 0.72	$ 3.94
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	(0.02)	0.37	0.68
Earnings Per Share, Basic	1.09	1.09	4.62
Income (Loss) from Continuing Operations, Per Diluted Share	1.09	0.70	3.85
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	(0.02)	0.37	0.67
Earnings Per Share, Diluted	$ 1.07	$ 1.07	$ 4.52
Weighted Average Number of Shares Outstanding, Basic	125.6	144.0	148.6
Weighted Average Number of Shares Outstanding, Diluted	127.3	146.4	152.0
Manufacturing [Member]
Revenues	$ 1,888.8	$ 1,667.1	$ 1,555.2
Cost of Goods and Services Sold	1,649.5	1,459.8	1,342.8
Selling, General and Administrative Expense	105.3	96.4	113.6
Leasing [Member]
Revenues	1,116.3	842.0	842.2
Cost of Goods and Services Sold	716.2	479.0	432.4
Selling, General and Administrative Expense	49.5	51.1	50.7
Other [Member]
Selling, General and Administrative Expense	$ 108.0	$ 149.1	$ 175.0