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These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalseGuarantor Obligations [Line Items]53false0us-gaap_GuaranteeObligationsTermus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse001 to 10 yearsfalsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringDescribe the approximate term of the guarantee or each group of similar guarantees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 13 -Subparagraph a falsefalseGuarantee contract period635Commitments and Contingent Liabilities (Details) (JPY ¥)MillionsUnKnownUnKnownUnKnownfalsetrue