| r0.010 | boe_a1121.root/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | N/A | N/A |
| r0.020 | boe_a1121.root/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | N/A | N/A |
| r0.030 | boe_a1121.root/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | N/A | N/A |
| r0.040 | boe_a1121.root/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | N/A | N/A |
| 019.010 | Forward contracts and swaps/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | N/A | N/A |
| 019.020 | Forward contracts and swaps/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | N/A | N/A |
| 019.030 | Forward contracts and swaps/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | N/A | N/A |
| 019.040 | Forward contracts and swaps/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | N/A | N/A |
| 020.010 | Currency swaps/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6104 | boe_eba_TA:x6002 |
| 020.020 | Currency swaps/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6104 | boe_eba_TA:x6002 |
| 020.030 | Currency swaps/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6104 | boe_eba_TA:x6002 |
| 020.040 | Currency swaps/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6104 | boe_eba_TA:x6002 |
| 030.010 | Interest rate swaps/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6054 | boe_eba_TA:x6002 |
| 030.020 | Interest rate swaps/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6054 | boe_eba_TA:x6002 |
| 030.030 | Interest rate swaps/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6054 | boe_eba_TA:x6002 |
| 030.040 | Interest rate swaps/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6054 | boe_eba_TA:x6002 |
| 040.010 | Forward contracts relating to currencies/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6105 | boe_eba_TA:x6002 |
| 040.020 | Forward contracts relating to currencies/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6105 | boe_eba_TA:x6002 |
| 040.030 | Forward contracts relating to currencies/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6105 | boe_eba_TA:x6002 |
| 040.040 | Forward contracts relating to currencies/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6105 | boe_eba_TA:x6002 |
| 050.010 | Forward contracts relating to commodities/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6106 | boe_eba_TA:x6002 |
| 050.020 | Forward contracts relating to commodities/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6106 | boe_eba_TA:x6002 |
| 050.030 | Forward contracts relating to commodities/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6106 | boe_eba_TA:x6002 |
| 050.040 | Forward contracts relating to commodities/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6106 | boe_eba_TA:x6002 |
| 059.010 | Options and swaptions/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | N/A | N/A |
| 059.020 | Options and swaptions/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | N/A | N/A |
| 059.030 | Options and swaptions/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | N/A | N/A |
| 059.040 | Options and swaptions/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | N/A | N/A |
| 060.010 | Currency options/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6055 | boe_eba_TA:x6002 |
| 060.020 | Currency options/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6055 | boe_eba_TA:x6002 |
| 060.030 | Currency options/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6055 | boe_eba_TA:x6002 |
| 060.040 | Currency options/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6055 | boe_eba_TA:x6002 |
| 070.010 | Commodity options/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6056 | boe_eba_TA:x6002 |
| 070.020 | Commodity options/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6056 | boe_eba_TA:x6002 |
| 070.030 | Commodity options/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6056 | boe_eba_TA:x6002 |
| 070.040 | Commodity options/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6056 | boe_eba_TA:x6002 |
| 080.010 | Caps/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6057 | boe_eba_TA:x6002 |
| 080.020 | Caps/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6057 | boe_eba_TA:x6002 |
| 080.030 | Caps/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6057 | boe_eba_TA:x6002 |
| 080.040 | Caps/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6057 | boe_eba_TA:x6002 |
| 090.010 | Floors/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6058 | boe_eba_TA:x6002 |
| 090.020 | Floors/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6058 | boe_eba_TA:x6002 |
| 090.030 | Floors/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6058 | boe_eba_TA:x6002 |
| 090.040 | Floors/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6058 | boe_eba_TA:x6002 |
| 100.010 | Swaptions/Current period | boe_met:mi6042 | xbrli:monetaryItemType | instant | boe_SR:x6024 | eba_AP:x48 | eba_BA:x9 | boe_eba_MC:x6059 | boe_eba_TA:x6002 |
| 100.020 | Swaptions/Current period | eba_met:mi170 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x17 | boe_eba_MC:x6059 | boe_eba_TA:x6002 |
| 100.030 | Swaptions/Financial assets | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x6 | boe_eba_MC:x6059 | boe_eba_TA:x6002 |
| 100.040 | Swaptions/Financial liabilities | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_SR:x6024 | N/A | eba_BA:x7 | boe_eba_MC:x6059 | boe_eba_TA:x6002 |