v3.26.1
Income Taxes - Summary of Income Tax Assets and Income Tax Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Major components of tax expense (income) [abstract]        
Income tax assets $ 263 $ 538    
Current income tax liabilities (594) (567)    
Net current income tax assets / (liabilities) at the end $ (331) $ (29) $ 702 $ 374