Other assets and other liabilities - Summary of Other Assets (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
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|---|---|---|---|---|
| Miscellaneous assets [abstract] | ||||
| Advance payments and prepaid expenses | ¥ 778,982 | ¥ 668,544 | ||
| Income taxes receivable and other taxes receivable | 236,961 | 203,310 | ||
| Net defined benefit assets | 129,765 | 86,914 | ||
| Insurance contract assets | [1] | 47,715 | ||
| Other | 162,892 | 180,655 | ||
| Total | 1,308,600 | 1,187,138 | ||
| Current assets | 663,678 | 621,209 | ||
| Non-current assets | ¥ 644,922 | ¥ 565,929 | ||
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