Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 53,595	$ 44,892
Accounts receivable, net	710,605	523,276
Inventories, net	646,342	663,035
Other current assets	122,579	134,613
Total Current Assets	1,533,121	1,365,816
Property, plant and equipment	8,396,505	8,294,962
Allowances for depreciation, depletion and amortization	(3,263,823)	(3,137,733)
Net property, plant and equipment	5,132,682	5,157,229
Goodwill	2,394,320	2,399,118
Other intangibles, net	493,824	501,282
Operating lease right-of-use assets	487,360
Other noncurrent assets	122,350	127,974
Total Assets	10,163,657	9,551,419
Current Liabilities:
Accounts payable	199,181	210,808
Accrued salaries, benefits and payroll taxes	37,128	51,434
Pension and postretirement benefits	10,493	9,942
Accrued insurance and other taxes	59,383	63,543
Current maturities of long-term debt and short-term facilities	385,043	390,042
Operating lease liabilities	51,011
Other current liabilities	79,977	60,981
Total Current Liabilities	822,216	786,750
Long-term debt	2,732,018	2,730,439
Pension, postretirement and postemployment benefits	140,066	134,469
Deferred income taxes, net	699,455	705,564
Noncurrent operating lease liabilities	438,932
Other noncurrent liabilities	233,700	244,785
Total Liabilities	5,066,387	4,602,007
Equity:
Common stock, par value $0.01 per share	623	624
Preferred stock, par value $0.01 per share
Additional paid-in capital	3,416,590	3,396,059
Accumulated other comprehensive loss	(137,334)	(143,579)
Retained earnings	1,814,974	1,693,259
Total Shareholders' Equity	5,094,853	4,946,363
Noncontrolling interests	2,417	3,049
Total Equity	5,097,270	4,949,412
Total Liabilities and Equity	$ 10,163,657	$ 9,551,419