Provisions and Other Contingencies - Summary of Movement in the Provision for Post Sales Client Support and Other Provisions (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Mar. 31, 2025
USD ($)
| |
| Disclosure of other provisions [abstract] | |
| Balance at the beginning | $ 215 |
| Provision recognized / (reversed) | 20 |
| Provision utilized | (80) |
| Balance at the end | $ 155 |