Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Lease revenue	$ 271.7	$ 274.4
Revenue Recognition, Cargo and Freight, Policy [Policy Text Block]	11.8	13.1
Other revenue	25.4	29.5
Total Revenues	308.9	317.0
Cost of Repairs and Maintenance	86.6	81.2
Expenses
Marine operating expense	10.4	12.1
Depreciation	80.4	79.9
Operating lease expense	13.3	13.7
Other operating expense	8.5	8.0
Selling, general and administrative	42.4	46.1
Total Expenses	241.6	241.0
Other Income (Expense)
Net gain on asset dispositions	27.4	8.9
Interest expense, net	(46.8)	(46.5)
Other (expense) income	(8.2)	(3.2)
Income before Income Taxes and Share of Affiliates’ Earnings	39.7	35.2
Income Taxes	(12.9)	(8.4)
Share of Affiliates’ Earnings (net of tax)	19.5	14.7
Net Income	46.3	41.5
Other Comprehensive Income, net of taxes
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(39.6)	(10.5)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(0.7)	2.0
Post-retirement benefit plans	2.2	3.0
Other comprehensive income (loss)	(38.1)	(5.5)
Comprehensive Income	$ 8.2	$ 36.0
Share Data
Basic earnings per share (in dollars per share)	$ 1.33	$ 1.14
Average number of common shares (in shares)	34.9	36.5
Diluted earnings per share (in dollars per share)	$ 1.31	$ 1.12
Average number of common shares and common share equivalents (in shares)	35.4	37.1