Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating Activities
Net income	$ 159.9	$ 226.2
Adjustments to reconcile income to net cash provided by operating activities:
Depreciation	238.5	230.6
Change in accrued operating lease expense	(21.2)	(11.0)
Gains on sales of assets	(48.4)	(41.3)
Deferred income taxes	44.8	83.6
Change in income taxes payable	(4.9)	(8.1)
Share of affiliates’ earnings, net of dividends	(22.0)	(29.0)
Other	(29.2)	(15.5)
Net cash provided by operating activities	317.5	435.5
Investing Activities
Additions to operating assets and facilities	(422.4)	(442.6)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(36.6)	0.0
Payments to Acquire Investments and Property, Plant, and Equipment	(459.0)	(442.6)
Purchases of leased-in assets	(93.2)	(116.5)
Portfolio proceeds	131.0	170.6
Proceeds from sales of other assets	24.3	18.6
Sale Leaseback Transaction, Net Proceeds, Investing Activities	90.6	82.5
Net Cash Provided by (Used in) Investing Activities	306.3	287.4
Financing Activities
Net proceeds from issuances of debt (original maturities longer than 90 days)	297.5	801.8
Repayments of debt (original maturities longer than 90 days)	(301.5)	(798.7)
Net increase (decrease) in debt with original maturities of 90 days or less	11.1	(2.5)
Stock repurchases	(75.0)	(95.1)
Dividends	(51.8)	(51.2)
Other	(2.8)	(6.0)
Net cash (used in) provided by financing activities	(122.5)	(151.7)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	3.1	(0.2)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(108.2)	(3.8)
Cash, Cash Equivalents, and Restricted Cash at beginning of period	311.1	219.7
Cash, Cash Equivalents, and Restricted Cash at end of period	$ 202.9	$ 215.9