v3.25.2
Income Taxes (Roll-forward of Unrecognized Tax Benefits) (Detail) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Roll-forward of unrecognized tax benefits:      
Balance at beginning of fiscal year ¥ 10,521 ¥ 25,400 ¥ 21,794
Gross amount of increases for current year’s tax positions 0 32 451
Gross amount of increases for prior years’ tax positions 40,882 0 279
Gross amount of decreases for prior years’ tax positions (23) (16,719) (166)
Net amount of changes relating to settlements with tax authorities (2,258) 0 0
Decreases due to lapse of applicable statutes of limitations (772) 0 (116)
Foreign exchange translation and other 2,430 1,808 3,158
Balance at end of fiscal year ¥ 50,780 ¥ 10,521 ¥ 25,400