XML 30 R19.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Net Income Per Share Attributable to Gilead Common Stockholders | 9 Months Ended
--- | ---
Sep. 30, 2018
Earnings Per Share [Abstract] |
Net Income Per Share Attributable to Gilead Common Stockholders | NET INCOME PER SHARE ATTRIBUTABLE TO GILEAD COMMON STOCKHOLDERS Basic net income per share attributable to Gilead common stockholders is calculated based on the weighted-average number of shares of our common stock outstanding during the period. Diluted net income per share attributable to Gilead common stockholders is calculated based on the weighted-average number of shares of our common stock outstanding and other dilutive securities outstanding during the period. The potentially dilutive shares of our common stock resulting from the assumed exercise of outstanding stock options and equivalents were determined under the treasury stock method. We have excluded stock options and equivalents of 12 million and 13 million for the three and nine months ended September 30, 2018, respectively, and 9 million for both the three and nine months ended September 30, 2017 from the computation of diluted net income per share attributable to Gilead common stockholders because their effect was antidilutive. The following table summarizes the calculation of basic and diluted net income per share attributable to Gilead common stockholders (in millions, except per share amounts):
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
Net income attributable to Gilead |  | $ | 2,097 |  |  | $ | 2,718 |  |  | $ | 5,452 |  |  | $ | 8,493 |
Shares used in per share calculation - basic |  | 1,296 |  |  | 1,306 |  |  | 1,302 |  |  | 1,307 |
Dilutive effect of stock options and equivalents |  | 11 |  |  | 13 |  |  | 11 |  |  | 12 |
Shares used in per share calculation - diluted |  | 1,307 |  |  | 1,319 |  |  | 1,313 |  |  | 1,319 |
Net income per share attributable to Gilead common stockholders - basic |  | $ | 1.62 |  |  | $ | 2.08 |  |  | $ | 4.19 |  |  | $ | 6.50 |
Net income per share attributable to Gilead common stockholders - diluted |  | $ | 1.60 |  |  | $ | 2.06 |  |  | $ | 4.15 |  |  | $ | 6.44 |

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

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration