Reconciliation of Basic and Diluted Shares Used in Computing Earnings Per Equity Share - Table of Equity Shares Used in Computation of Basic and Diluted Earnings Per Equity Share (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
| Diluted earnings per share [abstract] | |||
| Profit attributable to equity holders of the Company | $ 3,158 | $ 3,167 | $ 2,981 |
| Weighted average number of equity shares outstanding used in computing basic earnings per equity share | 4,141,611,738 | 4,138,568,090 | 4,180,897,857 |
| Effect of dilutive common equivalent shares - share options outstanding | 10,439,446 | 6,112,335 | 6,833,213 |
| Weighted average number of equity shares and common equivalent shares outstanding used in computing diluted earnings per equity share | 4,152,051,184 | 4,144,680,425 | 4,187,731,070 |
| Diluted earnings per equity share | $ 0.76 | $ 0.76 | $ 0.71 |