| r0.c0 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Provision item description | ocw-i:ProvisionItemDescription | ocw-types:antoken50VItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c1 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Provisions | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2016-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c2 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Additions to provisions | rj-i:ProvisionsAdditions | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c3 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Usage of provisions | rj-i:ProvisionsUsage | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c4 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Release from provision | rj-i:ProvisionsRelease | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c5 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Yielded interest of provisions | rj-i:ProvisionsYieldedInterest | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c6 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Provisions | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c7 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Provisions, maturity within one year | rj-i:ProvisionsMaturityWithinOneYear | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c8 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Provisions, maturity exceeding one up to five years | ocw-i:ProvisionsMaturityExceedingOneUptoFiveYears | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r0.c9 | ocw-table_NotesProvisionsOtherMovementSpecification-y.1/Provisions, maturity exceeding five years | rj-i:ProvisionsMaturityExceedingFiveYears | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | venj-bw2-dm:ProvisionsOtherMember | venj-bw2-dm:SeparateMember |
| r1.c0 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Provision item description | ocw-i:ProvisionItemDescription | ocw-types:antoken50VItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c1 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Provisions | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2016-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c2 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Additions to provisions | rj-i:ProvisionsAdditions | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c3 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Usage of provisions | rj-i:ProvisionsUsage | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c4 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Release from provision | rj-i:ProvisionsRelease | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c5 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Yielded interest of provisions | rj-i:ProvisionsYieldedInterest | nl-types:monetaryNoDecimalsItemType | duration | ocw-dm:ActualsMember | * | xs:date('2017-01-01')/xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c6 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Provisions | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c7 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Provisions, maturity within one year | rj-i:ProvisionsMaturityWithinOneYear | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c8 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Provisions, maturity exceeding one up to five years | ocw-i:ProvisionsMaturityExceedingOneUptoFiveYears | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |
| r1.c9 | ocw-table_NotesProvisionsOtherMovementSpecification-y/Provisions, maturity exceeding five years | rj-i:ProvisionsMaturityExceedingFiveYears | nl-types:monetaryNoDecimalsItemType | instant | ocw-dm:ActualsMember | * | xs:date('2017-12-31') | N/A | venj-bw2-dm:SeparateMember |