Right of Use Assets and Lease Liabilities - Summary of Maturity Analysis of the Total Future Lease Payments (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Disclosure of maturity analysis of total future lease payments [line items] | ||
| Future lease payment, total | ¥ 846,065 | ¥ 630,013 |
| Less - Interest expense | (135,052) | (96,662) |
| Present value of lease payment, total | 711,013 | 533,351 |
| Current liabilities | 163,435 | 92,147 |
| Non-current liabilities | 547,578 | 441,204 |
| Present value of lease payment, total | 711,013 | 533,351 |
| Within 1 year [Member] | ||
| Disclosure of maturity analysis of total future lease payments [line items] | ||
| Future lease payment, total | 194,791 | 102,412 |
| Between 1 and 5 years [Member] | ||
| Disclosure of maturity analysis of total future lease payments [line items] | ||
| Future lease payment, total | 289,591 | 253,854 |
| Later than 5 years [Member] | ||
| Disclosure of maturity analysis of total future lease payments [line items] | ||
| Future lease payment, total | ¥ 361,683 | ¥ 273,747 |