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v3.25.2

Long-Duration Insurance Contracts Relating to Life Insurance Operations - Schedule of Balances of Policy Account (Detail) - Fixed Annuity And Annuitization Benefits - JPY (¥) ¥ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Policyholder Account Balance [Line Items] |  |
Beginning balance | ¥ 138,419 | ¥ 158,952
Transfer in | 9,381 | 10,249
Surrenders and partial surrenders | (85) | (71)
Benefit payments and lump sum payments, etc. | (28,912) | (31,179)
Policy charges | (214) | (229)
Transfer out | (373) | (290)
Interests | 895 | 1,023
Others | (18) | (36)
Ending balance | ¥ 119,093 | ¥ 138,419
Weighted average guaranteed interest rate (%) | 0.70% | 0.70%
Benefits in excess of policy account balances (Millions of yen) | ¥ 0 | ¥ 1
Cash surrender value (Millions of yen) | ¥ 113,492 | ¥ 132,411

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- Definition Amount of cash to be paid to policyholder upon termination and surrender of long-duration contract issued by insurance entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-7A Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29F + Details
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