Income Tax Expense - Reconciliations of Effective Income Tax Rates (Detail) - JPY (¥) ¥ in Millions |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Apr. 01, 2026 |
Apr. 01, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Reconciliation of average effective tax rate and applicable tax rate [abstract] | |||||||
| Profit before tax | ¥ 1,555,030 | ¥ 654,246 | ¥ 1,207,789 | ||||
| Income tax expense | ¥ 360,070 | ¥ 137,802 | ¥ 312,039 | ||||
| Effective income tax rate | 31.52% | 30.62% | 23.20% | 21.10% | 25.80% | ||
| Effective statutory tax rate in Japan | [1] | 30.60% | 30.60% | 30.60% | |||
| Tax impact of share of post-tax profit in associates and joint ventures | (2.60%) | (6.70%) | (4.10%) | ||||
| Tax impact of impairment losses and reversal of impairment losses for investments in associates and joint ventures—net | (1.80%) | 6.20% | 2.30% | ||||
| Non-Japanese earnings | (1.80%) | (5.70%) | (1.60%) | ||||
| Nontaxable dividends received | (0.70%) | (2.70%) | (1.10%) | ||||
| Effect of the change in the write-down of deferred tax assets on the current fiscal year income tax expense | (0.60%) | 0.20% | (0.20%) | ||||
| Gains on step acquisition of subsidiaries and associates and joint ventures which were not taxable | 0.20% | ||||||
| Changes in Japanese corporation tax rates | [1] | (2.50%) | |||||
| Tax impact of impairment losses of goodwill | 0.40% | ||||||
| Others—net | (0.10%) | 1.30% | (0.10%) | ||||
| Effective income tax rate | 31.52% | 30.62% | 23.20% | 21.10% | 25.80% | ||
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- Definition The applicable income tax rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The tax expense (income) divided by the accounting profit. [Refer: Accounting profit] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Tax rate effects, in aggregate, on the reconciliation between the average effective tax rate and the applicable tax rate that the entity does not separately disclose in the reconciliation. [Refer: Average effective tax rate; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from a change in tax rate. [Refer: Average effective tax rate; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the application of foreign tax rates. [Refer: Average effective tax rate; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the impairment of goodwill. [Refer: Average effective tax rate; Applicable tax rate; Goodwill] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from change in the write-down of deferred tax assets on the current fiscal year. No definition available.
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from gains on step acquisition of subsidiaries and associates and joint ventures which were not taxable. No definition available.
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from impairment losses and reversal of impairment losses for investments in associates and joint ventures-net adjustments. No definition available.
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from nontaxable dividends received under enacted tax laws. No definition available.
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from share of post-tax (profit) loss in associates and joint ventures. No definition available.
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