Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Series B-1 Preferred Stock [Member] Preferred Stock [Member]
Beginning balance at Dec. 31, 2013	$ 2,745,742	$ 6,096	$ (308)	$ 8,674,129	$ 0	$ (5,934,175)	$ 0
Beginning balance (in shares) at Dec. 31, 2013	6,096,220,526	6,096,220,526
Beginning balance (in shares) at Dec. 31, 2013					0		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income, net of tax	350,139		20			350,119
Share-based payment expense	57,832			57,832
Exercise of options and vesting of restricted stock units	331	12		319
Exercise of stock options and vesting of restricted stock units (in shares)		11,922,805
Minimum withholding taxes on net share settlement of stock-based compensation	(24,809)			(24,809)
Conversion of Exchangeable Notes to common stock	6			6
Conversion of Exchangeable Notes to common stock (in shares)		3,259
Issuance of common stock upon exercise of warrants (in shares)		99,349
Common stock repurchased	(1,955,826)	(2,006,013)		(68,118)	(1,887,708)
Common stock repurchased (in shares)		570,055,203			570,055,203
Common stock retired	0	(565)		(1,871,578)	1,872,143
Common stock retired (in shares)		(565,624,446)			(565,624,446)
Ending balance at Sep. 30, 2014	$ 1,173,415	$ 5,543	$ (288)	$ 6,767,781	$ (15,565)	$ (5,584,056)	$ 0
Ending balance (in shares) at Sep. 30, 2014	5,542,621,493	5,542,621,493
Ending balance (in shares) at Sep. 30, 2014					4,430,757		0