Segment Information - Reconciliation of Adjusted EBITDA to Income (Loss) from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended			15 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020
Reconciliation of Adjusted EBITDA to income from continuing operations
Income (Loss) from Continuing Operations	$ 343,096	$ 268,211	$ 367,558
Interest expense, net	418,535	419,298	409,648
Provision (Benefit) for Income Taxes	29,609	59,931	42,753
Depreciation and amortization	652,069	658,201	639,514
Significant Acquisition Costs	0	13,293	50,665
Restructuring charges	194,396	48,597	0	$ 242,993
Intangible impairments	23,000	0	0
(Gain) loss on disposal/write-down of property, plant and equipment, net (including real estate)	(363,537)	(63,824)	(73,622)
Other expense (income), net, excluding our share of losses (gains) from our unconsolidated joint ventures(1)	133,611	25,720	(11,867)
Stock-based compensation expense	34,272	36,194	31,014
COVID-19 Costs	9,285	0	0
Our share of Adjusted EBITDA reconciling items from our unconsolidated joint ventures	1,385	3,388	3,261
Adjusted EBITDA	1,475,721	$ 1,469,009	$ 1,458,924
Cost of Sales
Reconciliation of Adjusted EBITDA to income from continuing operations
COVID-19 Costs	7,600
Selling, general and administrative expenses
Reconciliation of Adjusted EBITDA to income from continuing operations
COVID-19 Costs	$ 1,600