2.2.0.25falsefalse30103 - Disclosure - Summary of Significant Accounting Policies (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $Duration_1_1_2011_To_3_31_2011http://www.sec.gov/CIK0000882095duration2011-01-01T00:00:002011-03-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit15Standardhttp://www.gilead.com/2011-03-31yearsgild0USDUSD$2true0us-gaap_GeneralPoliciesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse3false0gild_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlockgildfalsenadurationTabular disclosure of an entity's basic and diluted earnings per share calculations.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="82%"> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Three Months Ended<br />March&nbsp;31,</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr><td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2011</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2010</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Numerator:</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Net income attributable to Gilead</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">651,141</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">854,901</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">&nbsp;&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td>&nbsp;</td> <td valign="bottom">&nbsp;&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td>&nbsp;</td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Denominator:</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Weighted-average shares of common stock outstanding used in the calculation of basic net income per share attributable to Gilead common stockholders</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">796,115</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">901,606</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Effect of dilutive securities:</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Stock options and equivalents</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">15,007</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">20,766</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -1em; margin-left: 5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Conversion spread related to the 2011 Notes</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">224</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,855</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Conversion spread related to the 2013 Notes</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">511</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,141</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">&nbsp;&nbsp;</td> <td style="border-top: #000000 1px solid;" valign="bottom">&nbsp;</td> <td style="border-top: #000000 1px solid;" valign="bottom">&nbsp;</td> <td>&nbsp;</td> <td valign="bottom">&nbsp;&nbsp;</td> <td style="border-top: #000000 1px solid;" valign="bottom">&nbsp;</td> <td style="border-top: #000000 1px solid;" valign="bottom">&nbsp;</td> <td>&nbsp;</td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Weighted-average shares of common stock outstanding used in the calculation of diluted net income per share attributable to Gilead common stockholders</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">811,857</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">928,368</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">&nbsp;&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td>&nbsp;</td> <td valign="bottom">&nbsp;&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td style="border-top: #000000 3px double;" valign="bottom">&nbsp;</td> <td>&nbsp;</td></tr></table> </div>&nbsp; &nbsp;&nbsp; Three Months EndedMarch&nbsp;31, &nbsp; &nbsp; &nbsp;&nbsp; 2011 &nbsp; &nbsp;&nbsp; 2010 &nbsp; Numerator: &nbsp;&nbsp; falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringTabular disclosure of an entity's basic and diluted earnings per share calculations.No authoritative reference available.falsefalse12Summary of Significant Accounting Policies (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue