Net Income Per Share Attributable to Gilead Common Shareholders (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table is a reconciliation of the numerator and denominator used in the calculation of basic and diluted net income per share attributable to Gilead common stockholders (in millions):

	Year Ended December 31,
	2014		2013		2012
Net income attributable to Gilead	$	12,101	$	3,075	$	2,592
Shares used in per share calculation — basic	1,522		1,529		1,515
Effect of dilutive securities:
Stock options and equivalents	33		40		33
Conversion spread related to the May 2013 Notes	—		4		11
Conversion spread related to the May 2014 Notes	2		27		11
Conversion spread related to the May 2016 Notes	28		32		11
Warrants related to the May Notes	62		63		2
Shares used in per share calculation — diluted	1,647		1,695		1,583
Net income per share attributable to Gilead common stockholders — basic	$	7.95	$	2.01	$	1.71
Net income per share attributable to Gilead common stockholders — diluted	$	7.35	$	1.81	$	1.64