| r0.010 | boe_a2.root/Current reporting month | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | N/A |
| r0.020 | boe_a2.root/Q1 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6001 |
| r0.030 | boe_a2.root/Q2 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6002 |
| r0.040 | boe_a2.root/Q3 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6003 |
| r0.050 | boe_a2.root/Q4 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6004 |
| r0.060 | boe_a2.root/Q5 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6005 |
| r0.070 | boe_a2.root/Q6 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6006 |
| r0.080 | boe_a2.root/Q7 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6007 |
| r0.090 | boe_a2.root/Q8 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6008 |
| r0.100 | boe_a2.root/Year-end following Q8 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6009 |
| r1.010 | Additional information on P&L, balance sheet and leverage data/Current reporting month | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | N/A |
| r1.020 | Additional information on P&L, balance sheet and leverage data/Q1 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6001 |
| r1.030 | Additional information on P&L, balance sheet and leverage data/Q2 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6002 |
| r1.040 | Additional information on P&L, balance sheet and leverage data/Q3 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6003 |
| r1.050 | Additional information on P&L, balance sheet and leverage data/Q4 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6004 |
| r1.060 | Additional information on P&L, balance sheet and leverage data/Q5 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6005 |
| r1.070 | Additional information on P&L, balance sheet and leverage data/Q6 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6006 |
| r1.080 | Additional information on P&L, balance sheet and leverage data/Q7 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6007 |
| r1.090 | Additional information on P&L, balance sheet and leverage data/Q8 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6008 |
| r1.100 | Additional information on P&L, balance sheet and leverage data/Year-end following Q8 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x11 | N/A | boe_eba_RF:x6009 |
| 260.010 | Profit (+) or loss (-) for the period/Current reporting month | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | N/A |
| 260.020 | Profit (+) or loss (-) for the period/Q1 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6001 |
| 260.030 | Profit (+) or loss (-) for the period/Q2 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6002 |
| 260.040 | Profit (+) or loss (-) for the period/Q3 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6003 |
| 260.050 | Profit (+) or loss (-) for the period/Q4 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6004 |
| 260.060 | Profit (+) or loss (-) for the period/Q5 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6005 |
| 260.070 | Profit (+) or loss (-) for the period/Q6 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6006 |
| 260.080 | Profit (+) or loss (-) for the period/Q7 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6007 |
| 260.090 | Profit (+) or loss (-) for the period/Q8 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6008 |
| 260.100 | Profit (+) or loss (-) for the period/Year-end following Q8 | eba_met:md103 | xbrli:monetaryItemType | instant | eba_BA:x1 | eba_MC:x276 | boe_eba_RF:x6009 |
| 270.010 | Total balance sheet assets/Current reporting month | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | N/A |
| 270.020 | Total balance sheet assets/Q1 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6001 |
| 270.030 | Total balance sheet assets/Q2 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6002 |
| 270.040 | Total balance sheet assets/Q3 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6003 |
| 270.050 | Total balance sheet assets/Q4 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6004 |
| 270.060 | Total balance sheet assets/Q5 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6005 |
| 270.070 | Total balance sheet assets/Q6 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6006 |
| 270.080 | Total balance sheet assets/Q7 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6007 |
| 270.090 | Total balance sheet assets/Q8 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6008 |
| 270.100 | Total balance sheet assets/Year-end following Q8 | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_MC:x25 | boe_eba_RF:x6009 |
| 281.010 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Current reporting month | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | N/A |
| 281.020 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q1 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6001 |
| 281.030 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q2 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6002 |
| 281.040 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q3 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6003 |
| 281.050 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q4 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6004 |
| 281.060 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q5 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6005 |
| 281.070 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q6 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6006 |
| 281.080 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q7 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6007 |
| 281.090 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Q8 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6008 |
| 281.100 | Total Leverage Ratio exposure - using a fully phased-in definition of Tier 1 capital/Year-end following Q8 | eba_met:mi76 | xbrli:monetaryItemType | instant | eba_BA:x9 | eba_MC:x623 | boe_eba_RF:x6009 |