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 |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Policyholder Account Balance [Line Items] | ||
| Beginning balance | ¥ 136,257 | ¥ 167,207 |
| Effect of changes other than through net income and other comprehensive income | (23,553) | (23,706) |
| Surrenders and withdrawals | (4,881) | (4,924) |
| Transfer in | (7,833) | (6,902) |
| Benefit payments | (10,748) | (11,851) |
| Others | (91) | (29) |
| Changes through net income | 25,594 | (7,292) |
| Effect of changes in fair value of corresponding investment assets | 33,288 | (3,538) |
| Fee income | (3,397) | (3,590) |
| Effect of changes in fair value of market risk benefits | (4,297) | (164) |
| Changes through other comprehensive income | (271) | 48 |
| Effect of changes in the instrument-specific credit risk | (271) | 48 |
| Ending balance | 138,027 | 136,257 |
| Policy account balances | 143,000 | 136,662 |
| Market risk benefits | (4,973) | (405) |
| Total | ¥ 138,027 | ¥ 136,257 |
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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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