Equity and Other Equity Items - Summary of Shareholder's Equity and Short-term and Long-term Debt (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2025 |
Mar. 31, 2024 |
|---|---|---|
| Statements [Line Items] | ||
| Toyota Motor Corporation shareholder's equity | ¥ 35,924,826 | ¥ 34,220,991 |
| Short-term and long-term debt | ¥ 38,792,879 | ¥ 36,561,780 |