CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income (loss)	$ (209,474)	$ 221,624
Adjustments to net income (loss):
Depreciation and amortization	741,919	853,715
Deferred income tax expense (benefit)	(100,751)	(4,888)
Losses (gains) on long-lived assets, net	76,040	(12,066)
Losses (gains) on investments, net		(4,930)
Loss on debt extinguishment		3,212
Share-based compensation	39,024	28,141
Foreign currency transaction losses (gains), net	7,443	3,416
Impairment of investment in unconsolidated affiliate	180,591
Gain on merger transaction, net	(47,074)
Gains on acquisitions	(2,308)
Equity in (earnings) losses of unconsolidated affiliates, net of dividends	38,909	3,527
Other	7,259	(2,924)
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	449,847	(229,161)
Inventory	9,483	(34,987)
Other current assets	146,123	74,249
Other long-term assets	263,582	8,791
Trade accounts payable and accrued liabilities	(699,765)	168,801
Income taxes payable	(40,756)	(50,904)
Other long-term liabilities	(255,081)	218,728
Net cash provided by operating activities	605,011	1,244,344
Cash flows from investing activities:
Purchases of investments	(8)	(319)
Sales and maturities of investments	859	23,580
Cash paid for acquisition of businesses, net of cash acquired	(57,909)	(10,200)
Investment in unconsolidated affiliates	(445)	(2,061)
Proceeds from merger transaction	650,050
Capital expenditures	(744,047)	(1,344,222)
Proceeds from sales of assets and insurance claims	30,164	129,825
Other	1,700	(3,931)
Net cash used for investing activities	(119,636)	(1,207,328)
Cash flows from financing activities:
Increase (decrease) in cash overdrafts	363	(3,867)
Proceeds from (payments for) issuance of common shares	1,198	30,240
Dividends to shareholders	(52,489)	(41,781)
Proceeds from short-term borrowings	2,792
Proceeds from (payment for) commercial paper, net	(162,544)	441,530
Proceeds from revolving credit facilities		15,000
Reduction in revolving credit facilities	(450,000)	(70,000)
Reduction in long term debt		(40,098)
Proceeds from term loan facility	300,000
Payments on term loan facility	(300,000)
Purchase of preferred stock		(70,875)
Purchase of treasury stock	(44,978)	(250,037)
Reduction in short-term debt		(10,000)
Other	(7,534)	(7,581)
Net cash used for financing activities	(713,192)	(7,469)
Effect of exchange rate changes on cash and cash equivalents	(21,966)	(15,009)
Net increase (decrease) in cash and cash equivalents	(249,783)	14,538
Cash and cash equivalents, beginning of period	501,149	389,915
Cash and cash equivalents, end of period	$ 251,366	$ 404,453