Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net income	$ 205.3	$ 205.0	$ 169.3
Adjustments to reconcile income to net cash provided by operating activities:
Depreciation	303.3	287.0	267.8
Share-based Compensation	11.6	14.0	13.1
Asset impairment charges	(33.9)	(1.3)	(5.9)
Gains on sales of assets	(99.7)	(79.3)	(80.7)
Deferred income taxes	90.2	61.4	53.6
Share of affiliates’ earnings, net of dividends	(13.7)	(9.5)	(41.4)
Change in income taxes payable	7.4	(4.4)	4.5
Change in accrued operating lease expense	(24.2)	(5.2)	(7.7)
Employee benefit plans	10.6	3.7	7.5
Other	9.6	(24.8)	8.8
Net cash provided by operating activities	534.3	449.2	400.7
Investing Activities
Additions to operating assets and facilities	(681.4)	(1,015.2)	(744.1)
Loans extended	0.0	0.0	(14.2)
Investments in affiliates	(15.5)	(15.3)	(101.3)
Portfolio investments and capital additions	(696.9)	(1,030.5)	(859.6)
Purchases of leased-in assets	(118.4)	(150.5)	(61.4)
Portfolio proceeds	482.2	264.0	385.3
Proceeds from sales of other assets	18.7	26.9	32.3
Proceeds from sale-leasebacks	0.0	0.0	90.7
Net decrease (increase) in restricted cash	(2.9)	5.8	9.5
Payments for (Proceeds from) Other Investing Activities	9.7	5.8	0.0
Net cash used in investing activities	(307.6)	(878.5)	(403.2)
Financing Activities
Net proceeds from issuances of debt (original maturities longer than 90 days)	748.8	1,223.0	1,132.2
Repayments of debt (original maturities longer than 90 days)	(726.3)	(819.8)	(602.8)
Net increase (decrease) in debt with original maturities of 90 days or less	(64.5)	50.0	(251.3)
Payments on capital lease obligations	(2.7)	(2.6)	(2.4)
Stock repurchases	(125.4)	(124.6)	(68.6)
Dividends	(68.2)	(62.0)	(60.5)
Other	(9.3)	(1.8)	(2.5)
Net cash (used in) provided by financing activities	(229.0)	262.2	149.1
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(5.2)	(2.7)	(1.1)
Net (decrease) increase in Cash and Cash Equivalents during the period	(7.5)	(169.8)	145.5
Cash and Cash Equivalents at beginning of period	209.9	379.7	234.2
Cash and Cash Equivalents at end of period	$ 202.4	$ 209.9	$ 379.7