v3.25.1
Income Taxes (Domestic and Foreign Components) (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Income Tax Disclosure [Abstract]      
Domestic (Canada) $ 92 $ 73 $ 61
Foreign (all other countries) 747 741 729
Pre-tax income before equity in net income of non-consolidated affiliates $ 839 $ 814 $ 790