v3.26.1
Net Income (Loss) Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Earnings Per Share [Abstract]      
Net income (loss) $ 904 $ 792 $ 306
Weighted average ordinary shares used to calculate basic net income (loss) per share (in shares) 1,061 1,050 1,027
Equity-classified share-based awards (in shares) 7 13 17
Weighted average ordinary shares used to calculate diluted net income (loss) per share (in shares) 1,068 1,063 1,044
Income (loss) per share attributable to ordinary shareholders — basic      
Net income (loss) per ordinary share - basic (in USD per share) $ 0.85 $ 0.75 $ 0.30
Income (loss) per share attributable to ordinary shareholders — diluted      
Net income (loss) per ordinary share - diluted (in USD per share) $ 0.85 $ 0.75 $ 0.29