| r0.1 | cbi_a1904.root/Total | | | | N/A | N/A | cbi_GA:TOT | * | N/A | N/A | N/A | N/A | N/A |
| r0.2 | cbi_a1904.root/ROI | | | | N/A | N/A | cbi_GA:IE | * | N/A | N/A | N/A | N/A | N/A |
| r0.3 | cbi_a1904.root/UK | | | | N/A | N/A | cbi_GA:GB | * | N/A | N/A | N/A | N/A | N/A |
| r0.4 | cbi_a1904.root/US | | | | N/A | N/A | cbi_GA:US | * | N/A | N/A | N/A | N/A | N/A |
| r0.5 | cbi_a1904.root/Other | | | | N/A | N/A | cbi_GA:x28 | * | N/A | N/A | N/A | N/A | N/A |
| r1.1 | Residential Investment Properties/Total | | | | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| r1.2 | Residential Investment Properties/ROI | | | | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| r1.3 | Residential Investment Properties/UK | | | | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| r1.4 | Residential Investment Properties/US | | | | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| r1.5 | Residential Investment Properties/Other | | | | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 1.1 | Exposure - Residential Investment Property/Buy to Let Loans to Customers/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 1.2 | Exposure - Residential Investment Property/Buy to Let Loans to Customers/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 1.3 | Exposure - Residential Investment Property/Buy to Let Loans to Customers/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 1.4 | Exposure - Residential Investment Property/Buy to Let Loans to Customers/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 1.5 | Exposure - Residential Investment Property/Buy to Let Loans to Customers/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 1.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 1.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 1.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 1.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 1.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 1.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 1.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 1.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 1.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 1.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 1.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 1.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 1.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 1.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 1.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 1a.1 | Of Which: Restructured Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 1a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 1a.3 | Of Which: Restructured Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 1a.4 | Of Which: Restructured Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 1a.5 | Of Which: Restructured Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 1b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 1b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 1b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 1b.4 | Of Which: Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 1b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 1c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 1c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 1c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 1c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 1c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 1d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 1d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 1d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 1d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 1d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 2.1 | Exposure - Stage 1/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.2 | Exposure - Stage 1/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.3 | Exposure - Stage 1/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.4 | Exposure - Stage 1/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.5 | Exposure - Stage 1/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.2.1 | Variable 'Tracker' Rate Residential Mortgages/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.2.2 | Variable 'Tracker' Rate Residential Mortgages/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.2.3 | Variable 'Tracker' Rate Residential Mortgages/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.2.4 | Variable 'Tracker' Rate Residential Mortgages/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.2.5 | Variable 'Tracker' Rate Residential Mortgages/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 2a.1 | Of Which: Restructured Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 2a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 2a.3 | Of Which: Restructured Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 2a.4 | Of Which: Restructured Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 2a.5 | Of Which: Restructured Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 2b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 2b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 2b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 2b.4 | Of Which: Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 2b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 2c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 2c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 2c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 2c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 2c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 2d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 2d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 2d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 2d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 2d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 3.1 | Exposure - Stage 2/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.2 | Exposure - Stage 2/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.3 | Exposure - Stage 2/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.4 | Exposure - Stage 2/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.5 | Exposure - Stage 2/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 3a.1 | Of Which: Restructured Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 3a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 3a.3 | Of Which: Restructured Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 3a.4 | Of Which: Restructured Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 3a.5 | Of Which: Restructured Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 3b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 3b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 3b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 3b.4 | Of Which: Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 3b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 3c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 3c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 3c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 3c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 3c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 3d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 3d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 3d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 3d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 3d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 4.1 | Exposure - Stage 3/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.2 | Exposure - Stage 3/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.3 | Exposure - Stage 3/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.4 | Exposure - Stage 3/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.5 | Exposure - Stage 3/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 4a.1 | Of Which: Restructured Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 4a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 4a.3 | Of Which: Restructured Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 4a.4 | Of Which: Restructured Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 4a.5 | Of Which: Restructured Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 4b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 4b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 4b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 4b.4 | Of Which: Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 4b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 4c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 4c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 4c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 4c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 4c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 4d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 4d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 4d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 4d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 4d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 5.1 | ECL - Stage 2/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.2 | ECL - Stage 2/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.3 | ECL - Stage 2/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.4 | ECL - Stage 2/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.5 | ECL - Stage 2/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x2 | N/A | cbi_UE:x6 |
| 5a.1 | Of Which: Restructured Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 5a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 5a.3 | Of Which: Restructured Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 5a.4 | Of Which: Restructured Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 5a.5 | Of Which: Restructured Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x2 | cbi_UE:x6 |
| 5b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 5b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 5b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 5b.4 | Of Which: Interest Only Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 5b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x11 | cbi_UE:x6 |
| 5c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 5c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 5c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 5c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 5c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x12 | cbi_UE:x6 |
| 5d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 5d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 5d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 5d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 5d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x2 | cbi_LO:x13 | cbi_UE:x6 |
| 6.1 | ECL - Stage 3/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.2 | ECL - Stage 3/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.3 | ECL - Stage 3/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.4 | ECL - Stage 3/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.5 | ECL - Stage 3/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x3 | N/A | cbi_UE:x6 |
| 6a.1 | Of Which: Restructured Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 6a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 6a.3 | Of Which: Restructured Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 6a.4 | Of Which: Restructured Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 6a.5 | Of Which: Restructured Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x2 | cbi_UE:x6 |
| 6b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 6b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 6b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 6b.4 | Of Which: Interest Only Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 6b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x11 | cbi_UE:x6 |
| 6c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 6c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 6c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 6c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 6c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x12 | cbi_UE:x6 |
| 6d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 6d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 6d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 6d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 6d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x3 | cbi_LO:x13 | cbi_UE:x6 |
| 7.1 | Exposure - > 90 Days in Arrears/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 7.2 | Exposure - > 90 Days in Arrears/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 7.3 | Exposure - > 90 Days in Arrears/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 7.4 | Exposure - > 90 Days in Arrears/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 7.5 | Exposure - > 90 Days in Arrears/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 7.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 7.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 7.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 7.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 7.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 7.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 7.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 7.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 7.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 7.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 7.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 7.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 7.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 7.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 7.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 7a.1 | Of Which: Restructured Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 7a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 7a.3 | Of Which: Restructured Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 7a.4 | Of Which: Restructured Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 7a.5 | Of Which: Restructured Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 7b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 7b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 7b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 7b.4 | Of Which: Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 7b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 7c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 7c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 7c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 7c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 7c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 7d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 7d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 7d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 7d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 7d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x1 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 8.1 | Exposure - CRD Default/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 8.2 | Exposure - CRD Default/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 8.3 | Exposure - CRD Default/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 8.4 | Exposure - CRD Default/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 8.5 | Exposure - CRD Default/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 8.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 8.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 8.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 8.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 8.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 8.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 8.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 8.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 8.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 8.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 8.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 8.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 8.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 8.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 8.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 8a.1 | Of Which: Restructured Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 8a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 8a.3 | Of Which: Restructured Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 8a.4 | Of Which: Restructured Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 8a.5 | Of Which: Restructured Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 8b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 8b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 8b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 8b.4 | Of Which: Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 8b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 8c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 8c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 8c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 8c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 8c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 8d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 8d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 8d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 8d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 8d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi21 | xbrli:monetaryItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 9.1 | ECL - Stage 1/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.2 | ECL - Stage 1/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.3 | ECL - Stage 1/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.4 | ECL - Stage 1/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.5 | ECL - Stage 1/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | cbi_ST:x1 | N/A | cbi_UE:x6 |
| 9a.1 | Of Which: Restructured Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 9a.2 | Of Which: Restructured Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 9a.3 | Of Which: Restructured Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 9a.4 | Of Which: Restructured Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 9a.5 | Of Which: Restructured Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x2 | cbi_UE:x6 |
| 9b.1 | Of Which: Interest Only Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 9b.2 | Of Which: Interest Only Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 9b.3 | Of Which: Interest Only Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 9b.4 | Of Which: Interest Only Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 9b.5 | Of Which: Interest Only Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x11 | cbi_UE:x6 |
| 9c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 9c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 9c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 9c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 9c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x12 | cbi_UE:x6 |
| 9d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 9d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 9d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 9d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 9d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:mi22 | xbrli:monetaryItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | cbi_ST:x1 | cbi_LO:x13 | cbi_UE:x6 |
| 10.1 | Number of Obligors/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 10.2 | Number of Obligors/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 10.3 | Number of Obligors/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 10.4 | Number of Obligors/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 10.5 | Number of Obligors/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 10.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 10.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 10.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 10.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 10.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 10.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 10.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 10.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 10.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 10.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 10.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 10.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 10.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 10.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 10.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 10a.1 | Of Which: Restructured Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 10a.2 | Of Which: Restructured Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 10a.3 | Of Which: Restructured Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 10a.4 | Of Which: Restructured Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 10a.5 | Of Which: Restructured Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 10b.1 | Of Which: Interest Only Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 10b.2 | Of Which: Interest Only Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 10b.3 | Of Which: Interest Only Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 10b.4 | Of Which: Interest Only Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 10b.5 | Of Which: Interest Only Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 10c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 10c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 10c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 10c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 10c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 10d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 10d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 10d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 10d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 10d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | N/A | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 11.1 | Number of Obligors in CRD - Default/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 11.2 | Number of Obligors in CRD - Default/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 11.3 | Number of Obligors in CRD - Default/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 11.4 | Number of Obligors in CRD - Default/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 11.5 | Number of Obligors in CRD - Default/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | N/A | cbi_UE:x6 |
| 11.1.1 | Variable Rate Residential Investment Property/Buy to Let/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 11.1.2 | Variable Rate Residential Investment Property/Buy to Let/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 11.1.3 | Variable Rate Residential Investment Property/Buy to Let/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 11.1.4 | Variable Rate Residential Investment Property/Buy to Let/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 11.1.5 | Variable Rate Residential Investment Property/Buy to Let/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x1 | N/A | N/A | cbi_UE:x6 |
| 11.2.1 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 11.2.2 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 11.2.3 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 11.2.4 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 11.2.5 | Variable 'Tracker' Rate Residential Investment Property/Buy to Let/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x2 | N/A | N/A | cbi_UE:x6 |
| 11.3.1 | Fixed Rate Residential Investment Property/Buy to Let/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 11.3.2 | Fixed Rate Residential Investment Property/Buy to Let/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 11.3.3 | Fixed Rate Residential Investment Property/Buy to Let/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 11.3.4 | Fixed Rate Residential Investment Property/Buy to Let/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 11.3.5 | Fixed Rate Residential Investment Property/Buy to Let/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | cbi_RA:x3 | N/A | N/A | cbi_UE:x6 |
| 11a.1 | Of Which: Restructured Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 11a.2 | Of Which: Restructured Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 11a.3 | Of Which: Restructured Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 11a.4 | Of Which: Restructured Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 11a.5 | Of Which: Restructured Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x2 | cbi_UE:x6 |
| 11b.1 | Of Which: Interest Only Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 11b.2 | Of Which: Interest Only Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 11b.3 | Of Which: Interest Only Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 11b.4 | Of Which: Interest Only Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 11b.5 | Of Which: Interest Only Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x11 | cbi_UE:x6 |
| 11c.1 | Of Which: Partial Interest Only Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 11c.2 | Of Which: Partial Interest Only Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 11c.3 | Of Which: Partial Interest Only Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 11c.4 | Of Which: Partial Interest Only Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 11c.5 | Of Which: Partial Interest Only Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x12 | cbi_UE:x6 |
| 11d.1 | Of Which: Interest and Capital Moratorium Loans/Total | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:TOT | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 11d.2 | Of Which: Interest and Capital Moratorium Loans/ROI | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:IE | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 11d.3 | Of Which: Interest and Capital Moratorium Loans/UK | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:GB | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 11d.4 | Of Which: Interest and Capital Moratorium Loans/US | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:US | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |
| 11d.5 | Of Which: Interest and Capital Moratorium Loans/Other | cbi_met:ii1 | xbrli:integerItemType | instant | cbi_BA:x1 | cbi_CQ:x2 | cbi_GA:x28 | * | cbi_MC:x95 | N/A | N/A | cbi_LO:x13 | cbi_UE:x6 |