Earnings per share - Schedule of Earnings Per Share (Details) - USD ($) shares in Millions, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Earnings per share [abstract] | |||
| Income attributable to Shell plc shareholders | $ 19,359 | $ 42,309 | $ 20,101 |
| Weighted average number of shares used as the basis for determining: | |||
| Basic earnings per share (in shares) | 6,733.5 | 7,347.5 | 7,761.7 |
| Diluted earnings per share (in shares) | 6,799.8 | 7,410.5 | 7,806.8 |