| r0.c0 | Policy value autonomous movement/First forecast year | bzk-ww-i:AutonomousPolicyValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r0.c1 | Policy value autonomous movement/Second forecast year | bzk-ww-i:AutonomousPolicyValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r0.c2 | Policy value autonomous movement/Third forecast year | bzk-ww-i:AutonomousPolicyValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r0.c3 | Policy value autonomous movement/Fourth forecast year | bzk-ww-i:AutonomousPolicyValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r0.c4 | Policy value autonomous movement/Fifth forecast year | bzk-ww-i:AutonomousPolicyValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |
| r1.c0 | Market value autonomous movement/First forecast year | bzk-ww-i:AutonomousMarketValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodFirstPeriodStartDateParam/$FinancialReportingPeriodFirstPeriodEndDateParam |
| r1.c1 | Market value autonomous movement/Second forecast year | bzk-ww-i:AutonomousMarketValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodSecondPeriodStartDateParam/$FinancialReportingPeriodSecondPeriodEndDateParam |
| r1.c2 | Market value autonomous movement/Third forecast year | bzk-ww-i:AutonomousMarketValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodThirdPeriodStartDateParam/$FinancialReportingPeriodThirdPeriodEndDateParam |
| r1.c3 | Market value autonomous movement/Fourth forecast year | bzk-ww-i:AutonomousMarketValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodFourthPeriodStartDateParam/$FinancialReportingPeriodFourthPeriodEndDateParam |
| r1.c4 | Market value autonomous movement/Fifth forecast year | bzk-ww-i:AutonomousMarketValueMovement | nl-types:monetaryNoDecimals20ItemType | duration | $BasisOfPreparationParam | bzk-ww-dm:NonDAEBActivitiesMember | $FinancialReportingPeriodFifthPeriodStartDateParam/$FinancialReportingPeriodFifthPeriodEndDateParam |