Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Activities
Net income	$ 53.8	$ 46.3
Adjustments to reconcile income to net cash provided by operating activities:
Gains on sales of assets	(42.0)	(30.0)
Depreciation	121.1	115.5
(Reversal) provision for losses	(2.1)	0.2
Asset impairment charges	1.3	1.8
Deferred income taxes	21.8	10.7
Share of affiliates' earnings, net of dividends	2.7	(27.1)
Change in income taxes payable	4.0	9.5
Change in accrued operating lease expense	(29.2)	(23.4)
Employee benefit plans	0.1	(2.9)
Other	(19.2)	16.6
Net cash provided by operating activities	112.3	117.2
Investing Activities
Additions to operating assets and facilities	(360.3)	(189.8)
Loans extended	(1.0)	(19.1)
Investments in affiliates	(20.9)	(51.1)
Other	(9.6)	(0.1)
Portfolio investments and capital additions	(391.8)	(260.1)
Purchases of leased-in assets	(0.7)	(61.1)
Portfolio proceeds	227.1	78.7
Proceeds from sales of other assets	16.7	21.2
Net decrease in restricted cash	5.3	4.2
Other		(0.1)
Net cash used in investing activities	(143.4)	(217.2)
Financing Activities
Net proceeds from issuances of debt (original maturities longer than 90 days)	282.2	352.7
Repayments of debt (original maturities longer than 90 days)	(315.2)	(222.5)
Net increase (decrease) in debt with original maturities of 90 days or less	73.4	(16.3)
Payments on capital lease obligations	(1.8)	(17.4)
Employee exercises of stock options	2.7	4.9
Derivative Settlements	(0.8)	(0.8)
Dividends	(29.5)	(28.4)
Net cash provided by financing activities	11.0	72.2
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(0.6)	(0.5)
Net decrease in Cash and Cash Equivalents during the period	(20.7)	(28.3)
Cash and Cash Equivalents at beginning of period	248.4	78.5
Cash and Cash Equivalents at end of period	$ 227.7	$ 50.2