2.2.0.25truefalse40902 - Disclosure - Long-Term Obligations (Schedule of Carrying Amount of Convertible Senior Notes) (Details)truefalseIn Thousandsfalse1falsefalseUSDfalsefalse3/31/2011
USD ($) / shares
USD ($)
$As_Of_3_31_2011http://www.sec.gov/CIK0000882095instant2011-03-31T00:00:000001-01-01T00:00:00Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2falsefalseUSDfalsefalse12/31/2010
USD ($)
USD ($) / shares
$As_Of_12_31_2010http://www.sec.gov/CIK0000882095instant2010-12-31T00:00:000001-01-01T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2false0us-gaap_SeniorNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse44973680004497368falsetruefalsefalsefalse2truefalsefalse34775640003477564falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9
truefalse3false0us-gaap_SeniorNotesCurrentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse647238000647238falsefalsefalsefalsefalse2truefalsefalse638991000638991falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5
falsefalse4false0us-gaap_SeniorLongTermNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse38501300003850130falsefalsefalsefalsefalse2truefalsefalse28385730002838573falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5
falsefalse5false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.gilead.com/taxonomy/role/disclosurelongtermobligationsscheduleofcarryingamountofconvertibleseniornotesdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2011 Convertible Senior Notes [Member]
3/31/2011
USD ($)
USD ($) / shares
$As_Of_3_31_2011_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandElevenMemberhttp://www.sec.gov/CIK0000882095instant2011-03-31T00:00:000001-01-01T00:00:00falsefalse2011 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandElevenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$4falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2011 Convertible Senior Notes [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandElevenMemberhttp://www.sec.gov/CIK0000882095instant2010-12-31T00:00:000001-01-01T00:00:00falsefalse2011 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandElevenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse6false0us-gaap_SeniorNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse647238000647238falsefalsefalsefalsefalse2truefalsefalse638991000638991falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9
truefalse7false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.gilead.com/taxonomy/role/disclosurelongtermobligationsscheduleofcarryingamountofconvertibleseniornotesdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse5falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2013 Convertible Senior Notes [Member]
3/31/2011
USD ($)
USD ($) / shares
$As_Of_3_31_2011_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandThirteenMemberhttp://www.sec.gov/CIK0000882095instant2011-03-31T00:00:000001-01-01T00:00:00falsefalse2013 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandThirteenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$6falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2013 Convertible Senior Notes [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandThirteenMemberhttp://www.sec.gov/CIK0000882095instant2010-12-31T00:00:000001-01-01T00:00:00falsefalse2013 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandThirteenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse8false0us-gaap_SeniorNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse584172000584172falsefalsefalsefalsefalse2truefalsefalse576884000576884falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9
truefalse9false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.gilead.com/taxonomy/role/disclosurelongtermobligationsscheduleofcarryingamountofconvertibleseniornotesdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse7falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2014 Convertible Senior Notes [Member]
3/31/2011
USD ($) / shares
USD ($)
$As_Of_3_31_2011_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandFourteenMemberhttp://www.sec.gov/CIK0000882095instant2011-03-31T00:00:000001-01-01T00:00:00falsefalse2014 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandFourteenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2014 Convertible Senior Notes [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandFourteenMemberhttp://www.sec.gov/CIK0000882095instant2010-12-31T00:00:000001-01-01T00:00:00falsefalse2014 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandFourteenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse10false0us-gaap_SeniorNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse11606350001160635falsefalsefalsefalsefalse2truefalsefalse11538050001153805falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9
truefalse11false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.gilead.com/taxonomy/role/disclosurelongtermobligationsscheduleofcarryingamountofconvertibleseniornotesdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse9falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2016 Convertible Senior Notes [Member]
3/31/2011
USD ($)
USD ($) / shares
$As_Of_3_31_2011_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandSixteenMemberhttp://www.sec.gov/CIK0000882095instant2011-03-31T00:00:000001-01-01T00:00:00falsefalse2016 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandSixteenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$10falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2016 Convertible Senior Notes [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010_us-gaap_LongtermDebtTypeAxis_gild_ConvertibleSeniorNotesDueInTwoThousandSixteenMemberhttp://www.sec.gov/CIK0000882095instant2010-12-31T00:00:000001-01-01T00:00:00falsefalse2016 Convertible Senior Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_ConvertibleSeniorNotesDueInTwoThousandSixteenMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse12false0us-gaap_SeniorNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse11139010001113901falsefalsefalsefalsefalse2truefalsefalse11078840001107884falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9
truefalse13false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.gilead.com/taxonomy/role/disclosurelongtermobligationsscheduleofcarryingamountofconvertibleseniornotesdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse11falsefalseUSDtruefalse{us-gaap_LongtermDebtTypeAxis} : 2021 Senior Unsecured Notes [Member]
3/31/2011
USD ($)
$As_Of_3_31_2011_us-gaap_LongtermDebtTypeAxis_gild_TwoThousandTwentyOneSeniorUnsecuredNotesMemberhttp://www.sec.gov/CIK0000882095instant2011-03-31T00:00:000001-01-01T00:00:00falsefalse2021 Senior Unsecured Notes [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldigild_TwoThousandTwentyOneSeniorUnsecuredNotesMemberus-gaap_LongtermDebtTypeAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse14false0us-gaap_SeniorNotesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse991422000991422falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9
truefalse213Long-Term Obligations (Schedule of Carrying Amount of Convertible Senior Notes) (Details) (USD $)ThousandsUnKnownUnKnownUnKnownfalsetrue