| r0.C0010 | boe_a1347.root/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| r0.C0020 | boe_a1347.root/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| r0.C0030 | boe_a1347.root/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| r0.C0040 | boe_a1347.root/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| r0.C0050 | boe_a1347.root/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| r0.C0060 | boe_a1347.root/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| r0.C0070 | boe_a1347.root/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| r0.C0080 | boe_a1347.root/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| r0.C0090 | boe_a1347.root/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | N/A | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| r0.C0100 | boe_a1347.root/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| r0.C0110 | boe_a1347.root/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |
| R0009.C0010 | Analysis by currency/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0009.C0020 | Analysis by currency/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0009.C0030 | Analysis by currency/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0009.C0040 | Analysis by currency/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0009.C0050 | Analysis by currency/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0009.C0060 | Analysis by currency/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0009.C0070 | Analysis by currency/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| R0009.C0080 | Analysis by currency/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| R0009.C0090 | Analysis by currency/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | N/A | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| R0009.C0100 | Analysis by currency/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| R0009.C0110 | Analysis by currency/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | N/A | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |
| R0010.C0010 | TOTAL*/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0010.C0020 | TOTAL*/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0010.C0030 | TOTAL*/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0010.C0040 | TOTAL*/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0010.C0050 | TOTAL*/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0010.C0060 | TOTAL*/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0010.C0070 | TOTAL*/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| R0010.C0080 | TOTAL*/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| R0010.C0090 | TOTAL*/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| R0010.C0100 | TOTAL*/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| R0010.C0110 | TOTAL*/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9008 | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |
| R0020.C0010 | US dollars (US)/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0020.C0020 | US dollars (US)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0020.C0030 | US dollars (US)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0020.C0040 | US dollars (US)/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0020.C0050 | US dollars (US)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0020.C0060 | US dollars (US)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0020.C0070 | US dollars (US)/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:USD | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| R0020.C0080 | US dollars (US)/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:USD | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| R0020.C0090 | US dollars (US)/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | eba_CU:USD | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| R0020.C0100 | US dollars (US)/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| R0020.C0110 | US dollars (US)/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:USD | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |
| R0030.C0010 | Japanese yen (JP)/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0030.C0020 | Japanese yen (JP)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0030.C0030 | Japanese yen (JP)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0030.C0040 | Japanese yen (JP)/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0030.C0050 | Japanese yen (JP)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0030.C0060 | Japanese yen (JP)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0030.C0070 | Japanese yen (JP)/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:JPY | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| R0030.C0080 | Japanese yen (JP)/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:JPY | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| R0030.C0090 | Japanese yen (JP)/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | eba_CU:JPY | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| R0030.C0100 | Japanese yen (JP)/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| R0030.C0110 | Japanese yen (JP)/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:JPY | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |
| R0040.C0010 | Swiss francs (CH)/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0040.C0020 | Swiss francs (CH)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0040.C0030 | Swiss francs (CH)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0040.C0040 | Swiss francs (CH)/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0040.C0050 | Swiss francs (CH)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0040.C0060 | Swiss francs (CH)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0040.C0070 | Swiss francs (CH)/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:CHF | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| R0040.C0080 | Swiss francs (CH)/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:CHF | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| R0040.C0090 | Swiss francs (CH)/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | eba_CU:CHF | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| R0040.C0100 | Swiss francs (CH)/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| R0040.C0110 | Swiss francs (CH)/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | eba_CU:CHF | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |
| R0050.C0010 | Other currencies (OH)/UK banking sector (including certificates of deposit) | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0050.C0020 | Other currencies (OH)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9319 | eba_MC:x469 | eba_GA:GB |
| R0050.C0030 | Other currencies (OH)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9319 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0050.C0040 | Other currencies (OH)/UK banking sector | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | boe_eba_CT:x9001 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0050.C0050 | Other currencies (OH)/Other UK residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | boe_eba_CT:x9062 | N/A | boe_eba_MC:x9035 | eba_MC:x469 | eba_GA:GB |
| R0050.C0060 | Other currencies (OH)/Non-residents | eba_met:mi53 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | N/A | N/A | boe_eba_MC:x9035 | eba_MC:x469 | boe_eba_GA:x9001 |
| R0050.C0070 | Other currencies (OH)/Lending under ECGD bank guarantee and bills issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | N/A | eba_CG:x20 | N/A | boe_eba_CT:x9038 | boe_eba_MC:x9318 | boe_eba_MC:x9332 | boe_eba_GA:x9001 |
| R0050.C0080 | Other currencies (OH)/Certificates of deposit and commercial paper issued by non-residents | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | N/A | N/A | N/A | N/A | boe_eba_MC:x5002 | eba_MC:x60 | boe_eba_GA:x9001 |
| R0050.C0090 | Other currencies (OH)/Other assets | eba_met:mi357 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | N/A | N/A | N/A | N/A | N/A | boe_eba_MC:x9095 | N/A |
| R0050.C0100 | Other currencies (OH)/Total spot claims | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | N/A | N/A | N/A | N/A | N/A |
| R0050.C0110 | Other currencies (OH)/claims on non-resident CMIs | boe_met:mi9064 | xbrli:monetaryItemType | instant | boe_eba_CU:x9007 | eba_BA:x6 | N/A | eba_CT:x10 | N/A | N/A | N/A | boe_eba_GA:x9001 |