| USD ($) $ in Millions, shares in Millions | LTM | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 | Dec 31, 2017 | Dec 31, 2016 | Dec 31, 2015 | Dec 31, 2014 | Dec 31, 2013 | Dec 31, 2012 | Dec 31, 2011 | Dec 31, 2010 | Dec 31, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Revenues: | ||||||||||||||||||
Product sales | - | - | - | - | ||||||||||||||
Royalty revenues | - | - | - | - | ||||||||||||||
Royalty, contract and other revenues | - | - | - | - | ||||||||||||||
Total revenues | 30,457 | 29,443 | 28,754 | 27,116 | ||||||||||||||
Costs and expenses: | ||||||||||||||||||
Cost of goods sold | 6,216 | 6,234 | 6,251 | 6,498 | ||||||||||||||
Research and development expenses | 6,065 | 5,799 | 5,907 | 5,718 | ||||||||||||||
Acquired in-process research and development expenses | 11,999 | 1,024 | 4,663 | 1,155 | ||||||||||||||
In-process research and development impairments | 2,150 | 590 | 4,180 | 50 | ||||||||||||||
Selling, general and administrative expenses | 6,523 | 5,774 | 6,091 | 6,090 | ||||||||||||||
Total costs and expenses | 32,954 | 19,421 | 27,092 | 19,511 | ||||||||||||||
Operating income | (2,497) | 10,022 | 1,662 | 7,605 | ||||||||||||||
Interest expense | (998) | (1,024) | (977) | (944) | ||||||||||||||
Other (income) expense, net | 1,539 | 798 | 6 | 198 | ||||||||||||||
Income before income taxes | (1,955) | 9,796 | 690 | 6,859 | ||||||||||||||
Income tax (benefit) expense | 1,285 | 1,286 | 211 | 1,247 | ||||||||||||||
Net income | - | 8,510 | 480 | 5,613 | ||||||||||||||
Net loss attributable to noncontrolling interest | - | 0 | 0 | (52) | ||||||||||||||
Net income attributable to Gilead | $ (3,240) | $ 8,510 | $ 480 | $ 5,665 | ||||||||||||||
Basic earnings per share attributable to Gilead (in dollars per share) | $ (2.61) | $ 6.84 | $ 0.38 | $ 4.54 | ||||||||||||||
Diluted earnings per share attributable to Gilead (in dollars per share) | (2.65) | 6.78 | 0.38 | 4.5 | ||||||||||||||
Shares used in basic earnings per share attributable to Gilead calculation (in shares) | 1,243 | 1,244 | 1,247 | 1,248 | ||||||||||||||
Shares used in diluted earnings per share attributable to Gilead calculation (in shares) | 1,243 | 1,255 | 1,255 | 1,258 | ||||||||||||||
Cash dividends declared per share | - | - | - | - |