CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Millions	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning Balance at Dec. 31, 2009	$ 5,257	$ 5	$ (600)	$ 5,736	$ (56)	$ 172
Beginning Balance (in shares) at Dec. 31, 2009		444
Net income (loss)	1,152					1,152
Other comprehensive income (loss)	(134)				(134)
Exercise of common stock options (in shares)		7
Exercise of common stock options	16			16
Excess tax benefits from stock-based compensation	145			145
Stock-based compensation and issuance of employee benefit plan stock	428			428
Ending Balance at Dec. 31, 2010	6,864	5	(600)	6,325	(190)	1,324
Ending Balance (in shares) at Dec. 31, 2010		451
Net income (loss)	631					631
Other comprehensive income (loss)	(126)				(126)
Exercise of common stock options (in shares)		5
Exercise of common stock options	7			7
Repurchase of common stock (in shares)		(1)
Repurchase of common stock	(277)		(277)
Excess tax benefits from stock-based compensation	62			62
Stock-based compensation and issuance of employee benefit plan stock	569			569
Issuance of common stock for acquisition activity	27			27
Ending Balance at Dec. 31, 2011	7,757	5	(877)	6,990	(316)	1,955
Ending Balance (in shares) at Dec. 31, 2011		455
Net income (loss)	(39)					(39)
Other comprehensive income (loss)	77				77
Exercise of common stock options (in shares)		4
Exercise of common stock options	8			8
Repurchase of common stock (in shares)		(5)
Repurchase of common stock	(960)		(960)
Excess tax benefits from stock-based compensation	429			429
Stock-based compensation and issuance of employee benefit plan stock	854			854
Issuance of common stock for acquisition activity	66			66
Ending Balance at Dec. 31, 2012	$ 8,192	$ 5	$ (1,837)	$ 8,347	$ (239)	$ 1,916
Ending Balance (in shares) at Dec. 31, 2012		454