| r0.C0010 | boe_a1368.root/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | N/A | N/A |
| r0.C0020 | boe_a1368.root/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | N/A | N/A |
| r0.C0030 | boe_a1368.root/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | N/A | N/A |
| r0.C0040 | boe_a1368.root/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | N/A | N/A |
| r0.C0050 | boe_a1368.root/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | N/A | boe_eba_RP:x9006 |
| r0.C0060 | boe_a1368.root/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | N/A | boe_eba_RP:x9006 |
| r0.C0070 | boe_a1368.root/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | N/A | N/A |
| R0009.C0010 | Analysis by country/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | N/A | N/A |
| R0009.C0020 | Analysis by country/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | N/A | N/A |
| R0009.C0030 | Analysis by country/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | N/A | N/A |
| R0009.C0040 | Analysis by country/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | N/A | N/A |
| R0009.C0050 | Analysis by country/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | N/A | boe_eba_RP:x9006 |
| R0009.C0060 | Analysis by country/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | N/A | boe_eba_RP:x9006 |
| R0009.C0070 | Analysis by country/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | N/A | N/A |
| R0010.C0010 | Total of A+B+C/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | boe_eba_GA:x9001 | N/A |
| R0010.C0020 | Total of A+B+C/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | boe_eba_GA:x9001 | N/A |
| R0010.C0030 | Total of A+B+C/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | boe_eba_GA:x9001 | N/A |
| R0010.C0040 | Total of A+B+C/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 | N/A |
| R0010.C0050 | Total of A+B+C/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | boe_eba_GA:x9001 | boe_eba_RP:x9006 |
| R0010.C0060 | Total of A+B+C/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | boe_eba_GA:x9001 | boe_eba_RP:x9006 |
| R0010.C0070 | Total of A+B+C/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | boe_eba_GA:x9001 | N/A |
| R0019.C0010 | A International organisations/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | boe_eba_GA:x9001 | N/A |
| R0019.C0020 | A International organisations/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | boe_eba_GA:x9001 | N/A |
| R0019.C0030 | A International organisations/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | boe_eba_GA:x9001 | N/A |
| R0019.C0040 | A International organisations/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 | N/A |
| R0019.C0050 | A International organisations/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | boe_eba_GA:x9001 | boe_eba_RP:x9006 |
| R0019.C0060 | A International organisations/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | boe_eba_GA:x9001 | boe_eba_RP:x9006 |
| R0019.C0070 | A International organisations/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | boe_eba_GA:x9001 | N/A |
| R0020.C0010 | EU institutions/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | boe_eba_GA:x9006 | N/A |
| R0020.C0020 | EU institutions/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | boe_eba_GA:x9006 | N/A |
| R0020.C0030 | EU institutions/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | boe_eba_GA:x9006 | N/A |
| R0020.C0040 | EU institutions/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9006 | N/A |
| R0020.C0050 | EU institutions/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | boe_eba_GA:x9006 | boe_eba_RP:x9006 |
| R0020.C0060 | EU institutions/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | boe_eba_GA:x9006 | boe_eba_RP:x9006 |
| R0020.C0070 | EU institutions/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | boe_eba_GA:x9006 | N/A |
| R0030.C0010 | Other institutions/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | boe_eba_GA:x9013 | N/A |
| R0030.C0020 | Other institutions/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | boe_eba_GA:x9013 | N/A |
| R0030.C0030 | Other institutions/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | boe_eba_GA:x9013 | N/A |
| R0030.C0040 | Other institutions/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9013 | N/A |
| R0030.C0050 | Other institutions/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | boe_eba_GA:x9013 | boe_eba_RP:x9006 |
| R0030.C0060 | Other institutions/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | boe_eba_GA:x9013 | boe_eba_RP:x9006 |
| R0030.C0070 | Other institutions/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | boe_eba_GA:x9013 | N/A |
| R0040.C0010 | B Unallocated by country/Loans & advances, and claims under sale and repurchase agreements | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | boe_eba_CT:x9047 | N/A | eba_MC:x469 | boe_eba_GA:x9081 | N/A |
| R0040.C0020 | B Unallocated by country/Bills | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9318 | eba_MC:x60 | boe_eba_GA:x9081 | N/A |
| R0040.C0030 | B Unallocated by country/Lending Under ECGD bank guarantee | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_BA:x6 | eba_CG:x20 | boe_eba_CT:x9038 | N/A | eba_MC:x469 | boe_eba_GA:x9081 | N/A |
| R0040.C0040 | B Unallocated by country/Certificates of deposit and commercial paper | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9081 | N/A |
| R0040.C0050 | B Unallocated by country/Shares and other equity | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9335 | boe_eba_GA:x9081 | boe_eba_RP:x9006 |
| R0040.C0060 | B Unallocated by country/All securities (inc. preference shares) other than shares | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | boe_eba_MC:x9073 | eba_MC:x60 | boe_eba_GA:x9081 | boe_eba_RP:x9006 |
| R0040.C0070 | B Unallocated by country/Total | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9333 | boe_eba_GA:x9081 | N/A |