v3.26.1
Income Taxes - Schedule Of Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Income Tax Disclosure [Abstract]      
Unrecognized tax benefits, beginning balance $ 688 $ 804 $ 867
Increases in unrecognized tax benefits related to prior year tax positions 41 18 14
Decreases in unrecognized tax benefits related to prior year tax positions (22) (214) (173)
Increases in unrecognized tax benefits related to current year tax positions 63 94 97
Decreases in unrecognized tax benefits related to settlements with taxing authorities (94) (12)  
Reductions in unrecognized tax benefits due to lapse of applicable statute of limitations (5) (2) (2)
Changes in unrecognized tax benefits due to foreign currency translation 6   1
Unrecognized tax benefits, ending balance $ 677 $ 688 $ 804