Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Activities
Net income	$ 151.3	$ 211.2	$ 211.3
Total Discontinued Operations, Net of Taxes	1.1	30.4	20.8
Income from continuing operations	150.2	180.8	190.5
Adjustments to reconcile income to net cash provided by operating activities:
Depreciation	342.8	332.7	327.3
Gains on sales of assets	(39.5)	(56.2)	(79.3)
Asset Impairment Charges	0.3	6.6	9.0
Employee benefit plans	6.9	3.9	4.6
Share-based Payment Arrangement, Noncash Expense	15.6	12.3	16.4
Deferred income taxes	29.1	33.8	18.1
Share of affiliates’ earnings, net of dividends	(62.2)	(49.0)	(15.2)
Other	(6.4)	(39.1)	13.8
Net cash provided by operating activities	436.8	425.8	485.2
Investing Activities
Additions to operating assets and facilities	(860.8)	(722.8)	(913.5)
Acquisition of new businesses	(203.2)	0.0	0.0
Investments in affiliates	0.0	0.0	(14.1)
Portfolio investments and capital additions	(1,064.0)	(722.8)	(927.6)
Purchases of leased-in assets	0.0	(1.0)	(66.6)
Portfolio proceeds	131.1	250.3	234.4
Proceeds from sales of other assets	26.0	23.0	37.3
Proceeds from sale-leasebacks	0.0	0.0	59.1
Payments for (Proceeds from) Other Investing Activities	2.0	2.7	3.1
Net cash used in investing activities	(904.9)	(447.8)	(660.3)
Financing Activities
Net proceeds from issuances of debt (original maturities longer than 90 days)	1,586.5	743.0	693.7
Repayments of debt (original maturities longer than 90 days)	(1,100.0)	(410.0)	(632.8)
Net increase (decrease) in debt with original maturities of 90 days or less	6.4	(94.6)	106.5
Payments on capital lease obligations	(40.0)	(11.3)	0.0
Stock repurchases	0.0	(150.0)	(115.5)
Dividends	(71.0)	(69.3)	(69.3)
Other (add shares used to pay taxes)	(26.3)	59.1	3.5
Net cash (used in) provided by financing activities	355.6	66.9	(13.9)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(0.1)	(0.5)	(4.0)
Net Cash Used in (Provided By) Operating Activities	(8.5)	36.8	23.3
Net Cash Provided By (Used In) Investing Activities (1)	240.9	8.1	(15.8)
Net Cash Provided By (Used In) Financing Activities	21.8	(45.0)	(7.5)
Cash Provided By Discontinued Operations, Net	254.2	(0.1)	0.0
Net increase (decrease) in Cash, Cash Equivalents, and Restricted Cash during the year	141.6	44.3	(193.0)
Cash, Cash Equivalents, and Restricted Cash at beginning of period	151.0	106.7	299.7
Cash, Cash Equivalents, and Restricted Cash at end of period	$ 292.6	$ 151.0	$ 106.7