Consolidated Statements of Comprehensive Income Statement - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Lease Income	$ 281.8	$ 286.2	$ 847.5	$ 845.1
Cargo and Freight Revenue	62.1	77.6	139.7	167.8
Other Nonoperating Income	19.0	22.4	69.0	58.3
Revenues	362.9	386.2	1,056.2	1,071.2
Cost of Property Repairs and Maintenance	79.6	83.9	244.6	242.4
Marine Operating Expense	39.2	48.5	88.9	114.7
Depreciation, Nonproduction	75.9	75.0	221.0	217.9
Operating Leases, Rent Expense, Net	19.2	22.3	54.5	65.4
Other Cost and Expense, Operating	10.1	8.3	33.7	23.4
Selling, General and Administrative Expense	48.1	44.4	127.8	134.7
Operating Expenses	272.1	282.4	770.5	798.5
Gain (Loss) on Sale of Assets and Asset Impairment Charges	62.7	(4.5)	122.8	49.5
Interest Income (Expense), Net	(36.2)	(37.7)	(109.9)	(117.1)
Other Nonoperating Income (Expense)	4.3	(3.1)	(2.9)	(8.7)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	121.6	58.5	295.7	196.4
Income Tax Expense (Benefit)	(41.1)	(20.3)	(98.6)	(68.1)
Income (Loss) from Equity Method Investments	15.2	1.3	29.1	18.8
Net income	95.7	39.5	226.2	147.1
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	11.0	(2.9)	16.2	(39.4)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	1.3	(0.3)	1.6	(0.4)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	0.5	2.5	(6.8)	0.0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(6.0)	2.1	(3.3)	6.3
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	6.8	1.4	7.7	(33.5)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 102.5	$ 40.9	$ 233.9	$ 113.6
Earnings Per Share, Basic	$ 2.39	$ 0.92	$ 5.55	$ 3.38
Weighted Average Number of Shares Outstanding, Basic	40.1	42.8	40.7	43.5
Earnings Per Share, Diluted	$ 2.36	$ 0.91	$ 5.49	$ 3.33
Weighted Average Number of Shares Outstanding, Diluted	40.6	43.4	41.2	44.1
Common Stock, Dividends, Per Share, Declared	$ 0.40	$ 0.38	$ 1.20	$ 1.14