Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities
Net income	$ 169.3	$ 137.3	$ 110.8
Adjustments to reconcile income to net cash provided by operating activities:
Gains on sales of assets	(80.7)	(61.4)	(70.1)
Depreciation	267.8	249.4	238.5
Share-based Compensation	13.1	12.2	11.0
Asset impairment charges	5.9	5.0	6.8
Deferred income taxes	53.6	24.4	22.7
Share of affiliates’ earnings, net of dividends	(41.4)	15.5	(3.2)
Change in income taxes payable	4.5	(9.4)	9.1
Change in accrued operating lease expense	(7.7)	(11.0)	(7.6)
Employee benefit plans	7.5	0.8	(5.3)
Other	8.8	7.4	(5.9)
Net cash provided by operating activities	400.7	370.2	306.8
Investing Activities
Additions to operating assets and facilities	(744.1)	(739.3)	(466.4)
Loans extended	(14.2)	(1.0)	(31.9)
Investments in affiliates	(101.3)	(29.7)	(116.2)
Other	0	0	(0.1)
Portfolio investments and capital additions	(859.6)	(770.0)	(614.6)
Purchases of leased-in assets	(61.4)	(1.3)	(61.1)
Portfolio proceeds	385.3	288.9	154.1
Proceeds from sales of other assets	32.3	28.4	42.2
Proceeds from sale-leasebacks	90.7	104.9	0
Net decrease (increase) in restricted cash	9.5	5.5	21.4
Net cash used in investing activities	(403.2)	(343.6)	(458.0)
Financing Activities
Net proceeds from issuances of debt (original maturities longer than 90 days)	1,132.2	445.2	790.3
Repayments of debt (original maturities longer than 90 days)	(602.8)	(671.2)	(312.8)
Net increase (decrease) in debt with original maturities of 90 days or less	(251.3)	243.3	(85.0)
Payments on capital lease obligations	(2.4)	(3.0)	(18.5)
Stock repurchases	(68.6)	0	0
Dividends	(60.5)	(58.8)	(56.0)
Other	2.5	4.6	5.2
Net cash (used in) provided by financing activities	(149.1)	(39.9)	(323.2)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(1.1)	(0.9)	(2.1)
Net (decrease) increase in Cash and Cash Equivalents during the period	145.5	(14.2)	169.9
Cash and Cash Equivalents at beginning of period	234.2	248.4	78.5
Cash and Cash Equivalents at end of period	$ 379.7	$ 234.2	$ 248.4