CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 718,332	$ 434,883
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	456,685	435,878
Impairment charges	124,892	20,444
Debt Prepayment Refinancing Redemption Charges	33,402	0
Stock-based compensation expense	47,811	59,605
Deferred income taxes	72,590	200,056
Equity investment loss, net	5,131	8,611
Gain (loss) on sales of business interests, net	23,022	(57,547)
Other non-cash charges, net	24,291	164,856
Changes in operating assets and liabilities, net of effect of acquisitions and divestitures:
Accounts receivable	(182,684)	(74,622)
Inventories	9,519	88,355
Other receivables and other current assets	51,319	(757)
Other long-term assets	2,324	2,142
Accounts payable	(106,662)	(12,800)
Accrued compensation and benefits	(57,930)	40,225
Other current liabilities	140,046	45,624
Income taxes	57,279	21,749
Other long-term liabilities	(27,542)	5,546
Net cash provided by operating activities	1,391,825	1,382,248
Cash flows from investing activities:
Additions of property and equipment	(547,183)	(705,659)
Acquisitions	(77,348)	(113,526)
Proceeds from asset and business sales	3,863,619	135,268
Purchase of other debt and equity investments	(5,160)	(5,791)
Purchase of investments held-to-maturity	(98,322)	(3,728)
Proceeds from sale of other debt and equity investments	5,893	8,783
Proceeds from investments held-to-maturity	0	32,628
Purchase of equity investments	(8,770)	(12,874)
Distributions received on equity investments	1,296	3,580
Net cash provided by (used in) investing activities	3,134,025	(661,319)
Cash flows from financing activities:
Borrowings	38,519,991	41,674,279
Payments on long-term debt and other financing costs	(40,570,003)	(40,828,443)
Purchase of treasury stock	(1,837,022)	(1,161,511)
Distributions to noncontrolling interests	(157,170)	(139,673)
Stock award exercises and other share issuances, net	7,333	8,803
Contributions from noncontrolling interests	44,095	43,179
Proceeds from sales of additional noncontrolling interest	0	15
Purchases of noncontrolling interests	(10,988)	(19,988)
Net cash used in financing activities	(4,003,764)	(423,339)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(4,178)	(5,790)
Net increase in cash, cash equivalents and restricted cash	517,908	291,800
Cash, cash equivalents and restricted cash of continuing operations at beginning of the year	415,420	518,920
Cash, cash equivalents and restricted cash of continuing operations at end of the period	1,357,141	540,155
Discontinued Operations
Cash flows from financing activities:
Net increase in cash, cash equivalents and restricted cash	(423,813)	270,565
Continuing Operations
Cash flows from financing activities:
Net increase in cash, cash equivalents and restricted cash	$ 941,721	$ 21,235