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| r2.c0 | Disclosure of other interest income and related income/Current | jenv-bw2-i:InterestIncomeRelatedIncomeDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
| r3.c0 | Disclosure of dividends received (from operating activities)/Current | ocw-i:DividendsReceivedClassifiedAsOperatingActivitiesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
| r4.c0 | Disclosure of increase in value of non-current receivables and of securities/Current | ocw-i:IncreaseValueFinancialAssetsSecuritiesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
| r5.c0 | Disclosure of income of securities and receivables, that are part of non-current assets/Current | jenv-bw2-i:IncomeReceivablesNoncurrentSecuritiesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
| r6.c0 | Disclosure of financial income [title]/Current | ocw-abstr:FinancialIncomeDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
| r7.c0 | Disclosure of financial expenses/Current | rj-i:FinancialExpensesDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
| r8.c0 | Disclosure of decrease in value of non-current receivables and of securities/Current | ocw-i:DecreaseValueFinancialAssetsSecuritiesDisclosure | nl-types:string100000ItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
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| r10.c0 | Disclosure of financial expenses [title]/Current | ocw-abstr:FinancialExpensesDisclosureTitle | xbrli:stringItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |
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| r13.c0 | Disclosure of profit (loss) attributable to non-controlling interest not accrued to legal entity/Current | jenv-bw2-i:ResultAttributableNoncontrollingInterestDisclosure | nl-types:formattedExplanationItemType | duration | jenv-bw2-dm:SeparateMember | ocw-dm:ActualsMember | xs:date('2019-01-01')/xs:date('2019-12-31') |