UNAUDITED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - 9 months ended Sep. 30, 2016 - USD ($) shares in Thousands, $ in Thousands	Total		Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income
Balance at Dec. 31, 2015	$ 8,795,469		$ 482	$ (5,826,640)	$ 5,184,910	$ 9,191,865	$ 244,852
Balance (in shares) at Dec. 31, 2015			62,040	(12,428)
Increase (Decrease) in Stockholders' Equity
Net income	1,461,079					1,461,079
Foreign currency translation adjustments, net of tax benefit of $47,023	40,626	[1]					40,626
Unrealized gain on marketable securities, net of tax charge of $36,824	36,868	[2]					36,868
Exercise of stock options and vesting of restricted stock units and performance share units	13,262		$ 2		13,260
Exercise of stock options and vesting of restricted stock units and/or performance share units (in shares)			323
Repurchase of common stock	(757,477)			$ (757,477)
Repurchase of common stock (in shares)				(582)
Stock-based compensation and other stock-based payments	175,131				175,131
Excess tax benefits on stock-based awards and other equity deductions	72,116				72,116
Reclassification adjustment for convertible debt	(34,504)				(34,504)
Balance (in shares) at Sep. 30, 2016			62,363	(13,010)
Balance at Sep. 30, 2016	$ 9,802,570		$ 484	$ (6,584,117)	$ 5,410,913	$ 10,652,944	$ 322,346

[1] (1) Foreign currency translation adjustments include a tax benefit of $12,867 and $47,023 for the three and nine months ended September 30, 2016, respectively, and a tax benefit of $89 and a tax charge of $41,930 for the three and nine months ended September 30, 2015, respectively, associated with net investment hedges (See Note 10). The remaining balance in foreign currency translation adjustments excludes income taxes due to the Company's practice and intention to indefinitely reinvest the earnings of its international subsidiaries outside of the United States (See Note 9).

[2] Net of tax charges of $1,900 and $36,824 for the three and nine months ended September 30, 2016, respectively, and net of tax benefits of $2,184 and $3,804 for the three and nine months ended September 30, 2015, respectively.