XML 127 R114.htm IDEA: XBRL DOCUMENT
v3.23.2

Credit Quality of Financial Assets and the Allowance for Credit Losses - Summary of Financing Receivables Modified as Troubled Debt Restructurings (Detail) - JPY (¥) ¥ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2021
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | ¥ 5,500 | ¥ 900 | ¥ 1,139
Consumer borrowers |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | 808 | 900 | 387
Consumer borrowers | Consumer - Real Estate Loans |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | 5 | 4 |
Consumer borrowers | Consumer-Card loans |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | 2 | 6 | 36
Consumer borrowers | Consumer - Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | 801 | ¥ 890 | 351
Corporate borrowers |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | 4,692 |  | 752
Corporate borrowers | Commercial, industrial and other companies in overseas | Overseas |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Recorded investment | ¥ 4,692 |  | ¥ 752

X
- 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. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ck0001070304_ConsumerRealEstateLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CreditCardReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ck0001070304_OtherConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=ck0001070304_CorporatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ck0001070304_CommercialIndustrialAndOtherCompaniesInOverseasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ck0001070304_OverseasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |