Stockholder's Deficit And Comprehensive Loss (Schedule Of Changes In Equity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Balances at January 1, Noncontrolling Interests	$ 245,531
Balances at January 1, Consolidated	(8,696,635)	(7,995,191)	(7,995,191)
Consolidated net loss	(432,390)	(209,119)	(209,119)
Net loss, The Company	(424,190)	(203,003)
Net income, Noncontrolling Interests	(8,200)	(6,116)
Foreign currency translation adjustments	(2,217)	(23,413)
Unrealized holding gain on marketable securities	1,084	4,435
Unrealized holding gain on cash flow derivatives	0	14,823
Other adjustments to comprehensive loss	3,309	(998)
Other, net	(1,103)	(240)
Balances at March 31, Noncontrolling Interests	232,835		245,531
Balances at March 31, Consolidated	(9,127,952)	(8,209,703)	(8,696,635)
The Company [Member]
Balances at January 1, The Company	(8,942,166)	(8,299,188)	(8,299,188)
Net loss, The Company	(424,190)	(203,003)
Foreign currency translation adjustments	875	(20,306)
Unrealized holding gain on marketable securities	955	4,438
Unrealized holding gain on cash flow derivatives		14,823
Other adjustments to comprehensive loss	3,309	(885)
Other, net	430	1,291
Balances at March 31, The Company	(9,360,787)	(8,502,830)
Noncontrolling Interests [Member]
Balances at January 1, Noncontrolling Interests	245,531	303,997	303,997
Net income, Noncontrolling Interests	(8,200)	(6,116)
Foreign currency translation adjustments	(3,092)	(3,107)
Unrealized holding gain on marketable securities	129	(3)
Other adjustments to comprehensive loss		(113)
Other, net	(1,533)	(1,531)
Balances at March 31, Noncontrolling Interests	$ 232,835	$ 293,127