Organization And Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011


	Year Ended December 31,
	2011		2010		2009
Numerator:
Net income attributable to Gilead	$	2,803,637	$	2,901,257	$	2,635,755

Denominator:
Weighted-average shares of common stock outstanding used in the calculation of basic net income per share attributable to Gilead common stockholders		774,903		856,060		904,604
Effect of dilutive securities:
Stock options and equivalents		14,248		16,606		23,850
Conversion spread related to the May 2011 Notes		187		222		2,684
Conversion spread related to the May 2013 Notes		780		508		2,971

Weighted-average shares of common stock outstanding used in the calculation of diluted net income per share attributable to Gilead common stockholders		790,118		873,396		934,109


Description		Estimated Useful Life
Buildings and improvements		20-35
Laboratory and manufacturing equipment		4-10
Office and computer equipment		3-7
Leasehold improvements		Shorter of useful life or lease term