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NET INCOME PER SHARE ATTRIBUTABLE TO GILEAD COMMON STOCKHOLDERS (Tables) | 6 Months Ended
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Jun. 30, 2022
Earnings Per Share [Abstract] |
Schedule of the Calculation of Basic and Diluted Earnings Per Share | The following table shows the calculation of basic and diluted net income per share attributable to Gilead common stockholders:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in millions, except per share amounts) |  | 2022 |  | 2021 |  | 2022 |  | 2021
Net income attributable to Gilead |  | $ | 1,144 |  |  | $ | 1,522 |  |  | $ | 1,163 |  |  | $ | 3,251 |
Shares used in per share calculation - basic |  | 1,256 |  |  | 1,255 |  |  | 1,255 |  |  | 1,256 |
Dilutive effect of stock options and equivalents |  | 4 |  |  | 5 |  |  | 5 |  |  | 5 |
Shares used in per share calculation - diluted |  | 1,260 |  |  | 1,260 |  |  | 1,261 |  |  | 1,261 |
Net income per share attributable to Gilead common stockholders - basic |  | $ | 0.91 |  |  | $ | 1.21 |  |  | $ | 0.93 |  |  | $ | 2.59 |
Net income per share attributable to Gilead common stockholders - diluted |  | $ | 0.91 |  |  | $ | 1.21 |  |  | $ | 0.92 |  |  | $ | 2.58 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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