Long-Duration Insurance Contracts Relating to Life Insurance Operations - Schedule of Policy Account Balance And Market Risk Benefits (Detail) - Variable Annuity And Variable Life Insurance - JPY (¥) ¥ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2026 |
Mar. 31, 2026 |
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| Policyholder Account Balance [Line Items] | ||
| Beginning balance | ¥ 138,027 | ¥ 136,257 |
| Effect of changes other than through net income and other comprehensive income | (10,702) | (23,553) |
| Surrenders and withdrawals | (2,443) | (4,881) |
| Transfer in | (1,776) | (7,833) |
| Benefit payments | (6,462) | (10,748) |
| Others | (21) | (91) |
| Changes through net income | 18,387 | 25,594 |
| Effect of changes in fair value of corresponding investment assets | 21,690 | 33,288 |
| Fee income | (1,825) | (3,397) |
| Effect of changes in fair value of market risk benefits | (1,478) | (4,297) |
| Changes through other comprehensive income | (42) | (271) |
| Effect of changes in the instrument-specific credit risk | (42) | (271) |
| Ending balance | 145,670 | 138,027 |
| Policy account balances | 152,164 | 143,000 |
| Market risk benefits | (6,494) | (4,973) |
| Total | ¥ 145,670 | ¥ 138,027 |
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- Definition Policyholder account balance changes in fair value of market risk benefits. No definition available.
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- Definition Policyholder account balance changes in fair value resulting from changes in instrument specific credit risk during the period. No definition available.
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- Definition Policyholder account balance changes other than through net income. No definition available.
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- Definition Policyholder account balance changes through net income. No definition available.
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- Definition Policyholder account balance changes through oci. No definition available.
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- Definition Policyholder account balance effect of changes in fair value of investment assets. No definition available.
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- Definition Policyholder account balance fee income. No definition available.
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- Definition Policyholder funds excluding market risk. No definition available.
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- Definition Amount, before effect of reinsurance and after accumulated increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow to policyholder account balance from benefit payment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of increase (decrease) in liability for policyholder account balance from change, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in liability for policyholder account balance from contract redemption and withdrawal of funds. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of transfer to (from) liability for policyholder account balance (to) from liability for separate account. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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