Consolidated Statements of Financial Position (Parenthetical) - JPY (¥) ¥ in Millions |
Mar. 31, 2025 |
Mar. 31, 2024 |
|---|---|---|
| Statement of financial position [abstract] | ||
| Assets pledged that secured parties are permitted to sell or repledge amount current | ¥ 131,544 | ¥ 100,551 |
| Assets pledged that secured parties are permitted to sell or repledge amount noncurrent | ¥ 2,797,194 | ¥ 2,380,365 |