XML 103 R91.htm IDEA: XBRL DOCUMENT v3.22.0.1
Net Income Per Share Attributable to Gilead Common Shareholders - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share [Abstract]      
Net income attributable to Gilead $ 6,225 $ 123 $ 5,386
Shares used in per share calculation - basic (in shares) 1,256 1,257 1,270
Dilutive effect of stock options and equivalents (in shares) 6 6 7
Shares used in per share calculation - diluted (in shares) 1,262 1,263 1,277
Net income per share attributable to Gilead common stockholders - basic (in dollars per share) $ 4.96 $ 0.10 $ 4.24
Net income per share attributable to Gilead common stockholders - diluted (in dollars per share) $ 4.93 $ 0.10 $ 4.22