| r0.010 | boe_a2.root/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | N/A | N/A |
| r0.020 | boe_a2.root/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | N/A | N/A |
| r0.030 | boe_a2.root/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | N/A | N/A |
| r0.040 | boe_a2.root/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | N/A | N/A |
| 060.010 | Transactions to hedge changes in interest rates - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6002 |
| 060.020 | Transactions to hedge changes in interest rates - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6002 |
| 060.030 | Transactions to hedge changes in interest rates - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6002 |
| 060.040 | Transactions to hedge changes in interest rates - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6002 |
| 070.010 | Transactions to hedge changes in interest rates - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6002 |
| 070.020 | Transactions to hedge changes in interest rates - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6002 |
| 070.030 | Transactions to hedge changes in interest rates - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6002 |
| 070.040 | Transactions to hedge changes in interest rates - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6002 |
| 080.010 | Transactions to hedge changes in exchange rates - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6003 |
| 080.020 | Transactions to hedge changes in exchange rates - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6003 |
| 080.030 | Transactions to hedge changes in exchange rates - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6003 |
| 080.040 | Transactions to hedge changes in exchange rates - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6003 |
| 090.010 | Transactions to hedge changes in exchange rates - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6003 |
| 090.020 | Transactions to hedge changes in exchange rates - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6003 |
| 090.030 | Transactions to hedge changes in exchange rates - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6003 |
| 090.040 | Transactions to hedge changes in exchange rates - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6003 |
| 100.010 | Transactions to hedge changes in commodity prices - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6004 |
| 100.020 | Transactions to hedge changes in commodity prices - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6004 |
| 100.030 | Transactions to hedge changes in commodity prices - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6004 |
| 100.040 | Transactions to hedge changes in commodity prices - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6004 |
| 110.010 | Transactions to hedge changes in commodity prices - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6004 |
| 110.020 | Transactions to hedge changes in commodity prices - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6004 |
| 110.030 | Transactions to hedge changes in commodity prices - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6004 |
| 110.040 | Transactions to hedge changes in commodity prices - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6004 |
| 120.010 | Transactions to hedge changes in any index of retail prices - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6005 |
| 120.020 | Transactions to hedge changes in any index of retail prices - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6005 |
| 120.030 | Transactions to hedge changes in any index of retail prices - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6005 |
| 120.040 | Transactions to hedge changes in any index of retail prices - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6005 |
| 130.010 | Transactions to hedge changes in any index of retail prices - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6005 |
| 130.020 | Transactions to hedge changes in any index of retail prices - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6005 |
| 130.030 | Transactions to hedge changes in any index of retail prices - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6005 |
| 130.040 | Transactions to hedge changes in any index of retail prices - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6005 |
| 140.010 | Transactions to hedge changes in any index of residential property prices - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6006 |
| 140.020 | Transactions to hedge changes in any index of residential property prices - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6006 |
| 140.030 | Transactions to hedge changes in any index of residential property prices - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6006 |
| 140.040 | Transactions to hedge changes in any index of residential property prices - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6006 |
| 150.010 | Transactions to hedge changes in any index of residential property prices - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6006 |
| 150.020 | Transactions to hedge changes in any index of residential property prices - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6006 |
| 150.030 | Transactions to hedge changes in any index of residential property prices - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6006 |
| 150.040 | Transactions to hedge changes in any index of residential property prices - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6006 |
| 160.010 | Transactions to hedge changes in any index of commercial property prices - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6007 |
| 160.020 | Transactions to hedge changes in any index of commercial property prices - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6007 |
| 160.030 | Transactions to hedge changes in any index of commercial property prices - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6007 |
| 160.040 | Transactions to hedge changes in any index of commercial property prices - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6007 |
| 170.010 | Transactions to hedge changes in any index of commercial property prices - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6007 |
| 170.020 | Transactions to hedge changes in any index of commercial property prices - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6007 |
| 170.030 | Transactions to hedge changes in any index of commercial property prices - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6007 |
| 170.040 | Transactions to hedge changes in any index of commercial property prices - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6007 |
| 180.010 | Transactions to hedge changes in any index of price of shares - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6008 |
| 180.020 | Transactions to hedge changes in any index of price of shares - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6008 |
| 180.030 | Transactions to hedge changes in any index of price of shares - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6008 |
| 180.040 | Transactions to hedge changes in any index of price of shares - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6008 |
| 190.010 | Transactions to hedge changes in any index of price of shares - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6008 |
| 190.020 | Transactions to hedge changes in any index of price of shares - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6008 |
| 190.030 | Transactions to hedge changes in any index of price of shares - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6008 |
| 190.040 | Transactions to hedge changes in any index of price of shares - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6008 |
| 200.010 | Transactions to hedge default risk - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6009 |
| 200.020 | Transactions to hedge default risk - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6009 |
| 200.030 | Transactions to hedge default risk - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6009 |
| 200.040 | Transactions to hedge default risk - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6009 |
| 210.010 | Transactions to hedge default risk - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6009 |
| 210.020 | Transactions to hedge default risk - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6009 |
| 210.030 | Transactions to hedge default risk - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6009 |
| 210.040 | Transactions to hedge default risk - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6009 |
| 220.010 | Other transactions - Non Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6111 | boe_eba_TR:x6010 |
| 220.020 | Other transactions - Non Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6111 | boe_eba_TR:x6010 |
| 220.030 | Other transactions - Non Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6111 | boe_eba_TR:x6010 |
| 220.040 | Other transactions - Non Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6111 | boe_eba_TR:x6010 |
| 230.010 | Other transactions - Derivatives/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6110 | boe_eba_TR:x6010 |
| 230.020 | Other transactions - Derivatives/Current period | boe_met:mi6011 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x17 | boe_eba_MC:x6110 | boe_eba_TR:x6010 |
| 230.030 | Other transactions - Derivatives/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x6 | boe_eba_MC:x6110 | boe_eba_TR:x6010 |
| 230.040 | Other transactions - Derivatives/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6004 | eba_MC:x692 | N/A | eba_BA:x7 | boe_eba_MC:x6110 | boe_eba_TR:x6010 |