Shareholder's Deficit And Comprehensive Loss (Schedule Of Changes In Equity) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Balances at January 1,			$ (9,665,208)	$ (8,696,635)
Net income (loss)	$ (213,469)	$ (107,824)	(647,417)	(711,993)
Dividends and other payments to noncontrolling interests			(28,088)	(32,581)
Purchases of additional noncontrolling interest			(42,798)
Share Based Compensation	2,991	2,246	7,918	8,064
Foreign currency translation adjustments	(22,102)	(63,063)	(101,983)	(77,512)
Unrealized holding gain (loss) on marketable securities	(149)	(74)	540	605
Unrealized holding gain on cash flow derivatives			0	0
Other adjustments to comprehensive loss	0	0	(1,154)	0
Reclassifications	0	0	0	3,309
Other, net			4,154	532
Balances at December 31,	(10,474,036)	(9,506,211)	(10,474,036)	(9,506,211)
The Company [Member]
Balances at January 1,			(9,889,348)	(8,942,166)
Net income (loss)			(661,349)	(725,672)
Dividends and other payments to noncontrolling interests			0	0
Purchases of additional noncontrolling interest			(40,820)
Share Based Compensation			1,873	2,352
Foreign currency translation adjustments			(82,865)	(62,754)
Unrealized holding gain (loss) on marketable securities			484	533
Unrealized holding gain on cash flow derivatives			0	0
Other adjustments to comprehensive loss			(1,036)	0
Reclassifications			0	3,309
Other, net			(618)	(864)
Balances at December 31,	(10,673,679)	(9,725,262)	(10,673,679)	(9,725,262)
Noncontrolling Interest [Member]
Balances at January 1,			224,140	245,531
Net income (loss)			13,932	13,679
Dividends and other payments to noncontrolling interests			(28,088)	(32,581)
Purchases of additional noncontrolling interest			(1,978)
Share Based Compensation			6,045	5,712
Foreign currency translation adjustments			(19,118)	(14,758)
Unrealized holding gain (loss) on marketable securities			56	72
Unrealized holding gain on cash flow derivatives			0	0
Other adjustments to comprehensive loss			(118)	0
Reclassifications			0	0
Other, net			4,772	1,396
Balances at December 31,	$ 199,643	$ 219,051	$ 199,643	$ 219,051