2.2.0.25falsefalse11901 - Disclosure - Subsequent Eventstruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Duration_1_1_2010_To_12_31_2010http://www.sec.gov/CIK0000882095duration2010-01-01T00:00:002010-12-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0gild_SubsequentEventAbstractgildfalsenadurationSubsequent Event [Abstract]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringSubsequent Event [Abstract]falsefalse3false0us-gaap_ScheduleOfSubsequentEventsTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<div> <font style="font-family: Times New Roman;" class="_mt" size="2"> </font> <div> <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td valign="top" width="4%" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>19.</b></font></td> <td valign="top" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>SUBSEQUENT EVENTS </b></font></td></tr></table> <p style="margin-top: 6px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Stock Repurchase Program </i></font></p> <p style="margin-top: 6px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">In January 2011, our Board authorized an additional <font class="_mt">three</font>-year, $<font class="_mt">5.00</font> billion stock repurchase program which will commence upon the completion of our existing program authorized in May 2010.</font></p> <p style="margin-top: 18px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Acquisition of Arresto Biosciences, Inc. </i></font></p> <p style="margin-top: 6px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">In December 2010, we entered into an agreement to acquire Arresto Biosciences, Inc. (Arresto) for $<font class="_mt">225</font> million plus potential future payments based on achievement of certain sales levels. This transaction closed on January&nbsp;14, 2011, at which time Arresto became a wholly-owned subsidiary. Arresto was a privately-held, development-stage biotechnology company based in Palo Alto, California, focused on developing antibodies for the potential treatment of fibrotic diseases and cancer. The company's lead product is GS 6224 (formerly AB0024), a humanized monoclonal antibody (mAb) targeting the human lysyl oxidase-like-2 (LOXL2) protein. In addition to an ongoing Phase 1 study of GS 6224 in patients with advanced solid tumors, a Phase 1 study had also been initiated to evaluate GS 6224 in patients with idiopathic pulmonary fibrosis. We believe that Arresto's pipeline and research and development expertise are well aligned with Gilead's areas of focus. Given the timing of the closing of this acquisition, we are currently in the process of valuing the assets acquired and liabilities assumed in the business combination. As a result, we are unable to provide the amounts recognized as of the acquisition date for the major classes of assets acquired and liabilities assumed and certain disclosures pertaining to contingent consideration. </font></p> <p style="margin-top: 18px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Acquisition of Calistoga Pharmaceuticals, Inc. </i></font></p> <p style="margin-top: 6px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">In February 2011, we entered into an agreement to acquire Calistoga Pharmaceuticals, Inc. (Calistoga) for $<font class="_mt">375</font> million plus potential payments of up to $<font class="_mt">225</font> million based on the achievement of certain milestones. This transaction is expected to close in the second quarter of 2011. Calistoga is a privately-held, biotechnology company based in Seattle, Washington, focused on the development of medicines to treat cancer and inflammatory diseases. The company has a portfolio of proprietary compounds that selectively target isoforms of phosphoinositide-3 kinase (P13K). Calistoga's lead product candidate, CAL-101, is a first-in-class specific inhibitor of the P13K delta isoform. P13K delta is preferentially expressed in leukocytes involved in a variety of inflammatory and autoimmune diseases and hematological cancers.</font></p></div> </div>19. SUBSEQUENT EVENTS Stock Repurchase Program In January 2011, our Board authorized an additional three-year, $5.00 billion stock repurchase program whichfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 11 falsefalse12Subsequent EventsUnKnownUnKnownUnKnownUnKnownfalsetrue