v3.25.2
Leases - Schedule of Changes in Carrying Value of Right of Use Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]      
Beginning balance $ 786 $ 837 $ 636
Additions 254 [1] 274 [2] 436 [3]
Addition due to Business Combination (Refer to Note 2.10) 20    
Deletions (106) (114) (51)
Impairment [2]   (10)  
Depreciation (201) (193) (147)
Translation difference (15) (8) (37)
Ending balance 738 786 837
Land      
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]      
Beginning balance 72 76 83
Deletions   (1)  
Depreciation (1) (1) (1)
Translation difference (1) (2) (6)
Ending balance 70 72 76
Buildings      
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]      
Beginning balance 396 474 489
Additions 96 [1] 47 [2] 107 [3]
Addition due to Business Combination (Refer to Note 2.10) 19    
Deletions (28) (22) (5)
Impairment [2]   (10)  
Depreciation (84) (87) (84)
Translation difference (7) (6) (33)
Ending balance 392 396 474
Vehicles      
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]      
Beginning balance 2 2 2
Additions 3 [1] 1 [2] 1 [3]
Addition due to Business Combination (Refer to Note 2.10) 1    
Deletions (1)    
Depreciation (1) (1) (1)
Translation difference (1)   0
Ending balance 3 2 2
Computer Equipment      
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]      
Beginning balance 316 285 62
Additions 155 [1] 226 [2] 328 [3]
Deletions (77) (91) (46)
Depreciation (115) (104) (61)
Translation difference (6)   2
Ending balance $ 273 $ 316 $ 285
[1] Net of adjustments on account of modifications
[2] Net of adjustments on account of modifications and lease incentives
[3] Net of adjustments on account of modifications and lease incentives