CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Net Income (Loss)	$ (945.7)	$ 246.2	$ 1,134.6
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	(945.7)	246.2	1,134.6
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	922.0	859.0	857.5
Amortization of debt issuance costs and discounts	8.1	13.6	12.7
Share-based compensation	24.2	8.5	42.6
(Gain) loss on sale or impairment of properties and other assets, net	1,553.5	614.7	(8.1)
Unrealized (Gain) Loss on Foreign Currency Fluctuations and Derivative Instruments, net	(111.4)	18.9	193.1
Income tax (benefit) expense	301.8	233.7	225.2
Income tax (paid) received	(127.0)	(57.0)	32.3
Interest expense, excluding interest amortization	266.0	272.4	304.2
Interest paid	(271.9)	(285.0)	(308.7)
Change in current assets and liabilities (net of impact of business combinations) and other:
Receivables	160.8	38.5	(38.4)
Inventories	(46.2)	(17.7)	(10.6)
Payables and other current liabilities	(50.1)	(53.0)	27.6
Other assets and other liabilities	11.6	4.5	(132.7)
Net cash provided by operating activities	1,695.7	1,897.3	2,331.3
Cash flows from investing activities:
Additions to properties	(574.8)	(593.8)	(651.7)
Proceeds from sales of properties and other assets	158.8	115.9	32.5
Other	2.4	44.6	(49.9)
Net cash used in investing activities	(413.6)	(433.3)	(669.1)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	4.1	1.6	16.0
Dividends paid	(125.3)	(424.4)	(354.2)
Payments on debt and borrowings	(918.9)	(1,586.2)	(319.8)
Proceeds on debt and borrowings	1.5	3.0	0.0
Net proceeds from (payments on) revolving credit facilities and commercial paper	0.0	(4.7)	(374.3)
Other	(31.8)	3.7	23.4
Net Cash Provided by (Used in) Financing Activities	(1,070.4)	(2,007.0)	(1,008.9)
Cash and cash equivalents:
Cash and Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect, Total	211.7	(543.0)	653.3
Effect of foreign exchange rate changes on cash and cash equivalents	35.0	8.5	(14.0)
Balance at beginning of year	523.4	1,057.9	418.6
Balance at end of year	$ 770.1	$ 523.4	$ 1,057.9