v3.26.1
Finance Income and Finance Costs - Summary of Finance Income and Finance Costs (Detail) - JPY (¥)
¥ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Interest income:      
Financial assets measured at amortized cost ¥ 168,455 ¥ 184,928 ¥ 169,287
Financial assets measured at fair value through other comprehensive income 1,242 1,206 798
Financial assets measured at fair value through profit or loss 5,404 4,997 3,610
Other 4,365
Total 179,466 191,131 173,695
Interest expense:      
Financial liabilities measured at amortized cost (59,731) (45,385) (42,609)
Other (23,831) (9,522) (17,022)
Total (83,562) (54,907) (59,631)
Dividends received:      
Financial assets measured at fair value through other comprehensive income 15,578 15,037 8,804
Gains (losses) on derivatives:      
Financial assets and financial liabilities measured at fair value through profit or loss 65,195 (24,783) (202)
Gains (losses) on foreign exchange (29,159) (22,009) 67,414
Other 25,608 (1,297) (40,490)
Total 77,222 (33,052) 35,526
Total finance income and finance costs ¥ 173,126 ¥ 103,172 ¥ 149,590