XML 55 R42.htm IDEA: XBRL DOCUMENT
v3.24.0.1

EMPLOYEE BENEFITS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Summary of Stock-based Compensation Expenses -Included in Consolidated Statement of Income | The following tables summarize total stock-based compensation expense included on our Consolidated Statements of Income, classified by award type and expense type:
|  | Year Ended December 31,
(in millions) |  | 2023 |  | 2022 |  | 2021
RSUs |  | $ | 666 |  |  | $ | 557 |  |  | $ | 558 |
PSUs |  | 32 |  |  | 25 |  |  | 17 |
Stock options |  | 30 |  |  | 28 |  |  | 29 |
ESPP |  | 37 |  |  | 26 |  |  | 31 |
Acquisition-related expense(1) |  | 29 |  |  | 8 |  |  | — |
Stock-based compensation expense included in total costs and expenses |  | $ | 796 |  |  | $ | 645 |  |  | $ | 635 |
________________________________ (1) Accelerated post-acquisition stock-based compensation expenses of $19 million and $10 million related to the 2023 XinThera and Tmunity acquisitions, respectively, and $8 million related to the 2022 MiroBio acquisition.
|  | Year Ended December 31,
(in millions) |  | 2023 |  | 2022 |  | 2021
Cost of goods sold |  | $ | 57 |  |  | $ | 46 |  |  | $ | 40 |
Research and development expenses |  | 377 |  |  | 285 |  |  | 287 |
Selling, general and administrative expenses |  | 361 |  |  | 313 |  |  | 308 |
Stock-based compensation expense included in total costs and expenses |  | 796 |  |  | 645 |  |  | 635 |
Income tax effect |  | (165) |  |  | (91) |  |  | (100) |
Stock-based compensation expense, net of tax |  | $ | 630 |  |  | $ | 553 |  |  | $ | 535 |
Summary of RSU Activity | The following tables summarize our RSU activity:
|  | RSUs
(in millions, except per share amounts) |  | Shares |  | Weighted- Average Grant Date Fair Value Per Share
Outstanding as of December 31, 2022 |  | 23.6 |  |  | $ | 63.62 |
Granted |  | 11.5 |  |  | $ | 79.66 |
Vested |  | (10.7) |  |  | $ | 63.78 |
Forfeited |  | (1.6) |  |  | $ | 69.31 |
Outstanding as of December 31, 2023 |  | 22.7 |  |  | $ | 71.24 |
|  | Year Ended December 31,
(in millions, except per share amounts) |  | 2023 |  | 2022 |  | 2021
Weighted-average grant date fair value of RSUs granted |  | $ | 79.66 |  |  | $ | 60.36 |  |  | $ | 65.42 |
Total fair value of RSUs as of the respective vesting dates |  | $ | 849 |  |  | $ | 554 |  |  | $ | 463 |
Summary of PSU Activity | The following tables summarize our PSU activity:
|  | PSUs
(in millions, except per share amounts) |  | Shares |  | Weighted- Average Grant Date Fair Value Per Share
Outstanding as of December 31, 2022 |  | 1.0 |  |  | $ | 64.28 |
Granted |  | 0.5 |  |  | $ | 81.39 |
Vested |  | (0.4) |  |  | $ | 79.62 |
Forfeited |  | (0.1) |  |  | $ | 59.95 |
Outstanding as of December 31, 2023 |  | 1.0 |  |  | $ | 67.48 |
|  | Year Ended December 31,
(in millions, except per share amounts) |  | 2023 |  | 2022 |  | 2021
Weighted-average grant date fair value of PSUs granted |  | $ | 81.39 |  |  | $ | 60.04 |  |  | $ | 71.31 |
Total fair value of PSUs as of the respective vesting dates |  | $ | 35 |  |  | $ | 14 |  |  | $ | 8 |
Summary of Activity Under Stock Option Plans | The following tables summarize activity and other information related to our stock options:
|  | Shares (in millions) |  | Weighted- Average Exercise Price (in dollars) |  | Weighted-Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value (in millions)(1)
Outstanding as of December 31, 2022 |  | 14.4 |  |  | $ | 67.69 |  |  |  |  |
Granted |  | 2.1 |  |  | $ | 79.53 |  |  |  |  |
Exercised |  | (1.5) |  |  | $ | 64.72 |  |  |  |  |
Forfeited |  | (0.5) |  |  | $ | 66.91 |  |  |  |  |
Expired |  | (0.2) |  |  | $ | 92.76 |  |  |  |  |
Outstanding as of December 31, 2023 |  | 14.3 |  |  | $ | 69.38 |  |  | 6.10 |  | $ | 177 |
Exercisable as of December 31, 2023 |  | 9.2 |  |  | $ | 70.00 |  |  | 4.97 |  | $ | 112 |
Expected to vest, net of estimated forfeitures as of December 31, 2023 |  | 4.8 |  |  | $ | 68.19 |  |  | 8.16 |  | $ | 61 |
________________________________ (1) Aggregate intrinsic value represents the value of our closing stock price on the last trading day of the year in excess of the weighted-average exercise price multiplied by the number of options outstanding or exercisable.
|  | Year Ended December 31,
(in millions, except per share amounts) |  | 2023 |  | 2022 |  | 2021
Weighted-average grant date fair value of stock options granted |  | $ | 16.11 |  |  | $ | 9.08 |  |  | $ | 10.05 |
Total intrinsic value of options exercised |  | $ | 25 |  |  | $ | 59 |  |  | $ | 48 |
Summary of Assumptions to Calculate the Estimated Fair Value of Awards | We used the following weighted-average assumptions in the Black-Scholes model to calculate the estimated fair value of the stock option awards:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Expected volatility |  | 26 | % |  | 27 | % |  | 29 | %
Expected terms in years |  | 5 |  | 5 |  | 5
Risk-free interest rate |  | 4.1 | % |  | 1.9 | % |  | 0.8 | %
Expected dividend yield |  | 3.5 | % |  | 4.3 | % |  | 4.4 | %
We used the following weighted-average assumptions in the Black-Scholes model to calculate the estimated fair value of the ESPP awards:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Expected volatility |  | 24 | % |  | 23 | % |  | 25 | %
Expected terms in years |  | 0.5 |  | 0.5 |  | 0.5
Risk-free interest rate |  | 5.1 | % |  | 1.8 | % |  | 0.1 | %
Expected dividend yield |  | 3.7 | % |  | 4.5 | % |  | 4.4 | %
Summary of ESPP Activity | The following table summarizes our ESPP activity:
|  | Year Ended December 31,
(in millions, except per share amounts) |  | 2023 |  | 2022 |  | 2021
Shares issued |  | 2 |  | 2 |  | 2
Amount paid by employees for shares |  | $ | 129 |  |  | $ | 103 |  |  | $ | 111 |
Weighted-average grant date fair value of ESPP shares granted |  | $ | 17.31 |  |  | $ | 13.40 |  |  | $ | 14.58 |
Total fair value of ESPP shares as of the respective vesting dates |  | $ | 45 |  |  | $ | 21 |  |  | $ | 23 |

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options and ESPP, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References No definition available. + Details
Name: | gild_ScheduleOfShareBasedPaymentAwardStockOptionsAndEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix: | gild_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of employee stock purchase plan activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationEmployeeStockPurchasePlanActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration