Leases - Maturity Analysis of Lease Liability (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Disclosure of leases by lessee [line items] | ||
| Future minimum lease payments | ¥ 401,696 | ¥ 426,087 |
| Less: Future interest charges | (29,761) | (32,297) |
| Present value of finance lease commitments | 371,935 | 393,790 |
| Not later than one year [member] | ||
| Disclosure of leases by lessee [line items] | ||
| Future minimum lease payments | 80,220 | 81,548 |
| Later than one year and not later than five years [member] | ||
| Disclosure of leases by lessee [line items] | ||
| Future minimum lease payments | 184,098 | 187,124 |
| Later than five years [member] | ||
| Disclosure of leases by lessee [line items] | ||
| Future minimum lease payments | ¥ 137,378 | ¥ 157,415 |