XML 73 R60.htm IDEA: XBRL DOCUMENT
v3.24.0.1

AVAILABLE-FOR-SALE DEBT SECURITIES AND EQUITY SECURITIES - Summary of Classification of Equity Securities at Fair Value (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Equity method investments and other equity investments without readily determinable fair values: |  |
Other long-term assets | $ 340 | $ 423
Equity securities measured at fair value and without readily determinable fair value and equity method investments |  |
Total | 6,547 | 5,671
Cash and cash equivalents |  |
Equity securities measured at fair value: |  |
Equity securities measured at fair value | 4,465 | 3,831
Prepaid and other current assets |  |
Equity securities measured at fair value: |  |
Equity securities measured at fair value | 1,086 | 473
Other long-term assets |  |
Equity securities measured at fair value: |  |
Equity securities measured at fair value | $ 656 | $ 943

X
- Definition Equity Securities, FV-NI And Without Readily Determinable Fair Value And Equipment Method Investments + References No definition available. + Details
Name: | gild_EquitySecuritiesFVNIAndWithoutReadilyDeterminableFairValueAndEquipmentMethodInvestments
Namespace Prefix: | gild_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Equity Securities, FV-NI And Without Readily Determinable Fair Value And Equipment Method Investments + References No definition available. + Details
Name: | gild_EquitySecuritiesFVNIAndWithoutReadilyDeterminableFairValueAndEquipmentMethodInvestmentsAbstract
Namespace Prefix: | gild_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Equity Securities Without Readily Determinable Fair Value And Equity Method Investments + References No definition available. + Details
Name: | gild_OtherEquitySecuritiesWithoutReadilyDeterminableFairValueAndEquityMethodInvestments
Namespace Prefix: | gild_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_EquitySecuritiesFVNIAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A + Details
Name: | us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_CashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |