| r0.010 | cbi_a470.root/Parent and parent entities with joint control | | | | N/A | N/A | cbi_RR:x1 |
| r0.020 | cbi_a470.root/Subsidiaries | | | | N/A | N/A | cbi_RR:x2 |
| r0.030 | cbi_a470.root/Associates and joint ventures | | | | N/A | N/A | cbi_RR:x3 |
| r0.040 | cbi_a470.root/Key management of the entity or its parent | | | | N/A | N/A | cbi_RR:x4 |
| r0.050 | cbi_a470.root/Other related parties | | | | N/A | N/A | cbi_RR:x5 |
| 010.010 | Assets/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x120 | cbi_RR:x1 |
| 010.020 | Assets/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x120 | cbi_RR:x2 |
| 010.030 | Assets/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x120 | cbi_RR:x3 |
| 010.040 | Assets/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x120 | cbi_RR:x4 |
| 010.050 | Assets/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x120 | cbi_RR:x5 |
| 020.010 | of which: Equity instruments/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x123 | cbi_RR:x1 |
| 020.020 | of which: Equity instruments/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x123 | cbi_RR:x2 |
| 020.030 | of which: Equity instruments/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x123 | cbi_RR:x3 |
| 020.040 | of which: Equity instruments/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x123 | cbi_RR:x4 |
| 020.050 | of which: Equity instruments/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x123 | cbi_RR:x5 |
| 030.010 | of which: Debt securities/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x124 | cbi_RR:x1 |
| 030.020 | of which: Debt securities/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x124 | cbi_RR:x2 |
| 030.030 | of which: Debt securities/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x124 | cbi_RR:x3 |
| 030.040 | of which: Debt securities/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x124 | cbi_RR:x4 |
| 030.050 | of which: Debt securities/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x124 | cbi_RR:x5 |
| 040.010 | of which: Loans and advances/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x112 | cbi_RR:x1 |
| 040.020 | of which: Loans and advances/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x112 | cbi_RR:x2 |
| 040.030 | of which: Loans and advances/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x112 | cbi_RR:x3 |
| 040.040 | of which: Loans and advances/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x112 | cbi_RR:x4 |
| 040.050 | of which: Loans and advances/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x112 | cbi_RR:x5 |
| 050.010 | of which: Impaired financial assets/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x323 | cbi_RR:x1 |
| 050.020 | of which: Impaired financial assets/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x323 | cbi_RR:x2 |
| 050.030 | of which: Impaired financial assets/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x323 | cbi_RR:x3 |
| 050.040 | of which: Impaired financial assets/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x323 | cbi_RR:x4 |
| 050.050 | of which: Impaired financial assets/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x2 | cbi_MC:x323 | cbi_RR:x5 |
| 060.010 | Liabilities/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x126 | cbi_RR:x1 |
| 060.020 | Liabilities/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x126 | cbi_RR:x2 |
| 060.030 | Liabilities/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x126 | cbi_RR:x3 |
| 060.040 | Liabilities/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x126 | cbi_RR:x4 |
| 060.050 | Liabilities/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x126 | cbi_RR:x5 |
| 070.010 | of which: Deposits/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x175 | cbi_RR:x1 |
| 070.020 | of which: Deposits/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x175 | cbi_RR:x2 |
| 070.030 | of which: Deposits/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x175 | cbi_RR:x3 |
| 070.040 | of which: Deposits/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x175 | cbi_RR:x4 |
| 070.050 | of which: Deposits/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x175 | cbi_RR:x5 |
| 080.010 | of which: Debt securities issued/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x176 | cbi_RR:x1 |
| 080.020 | of which: Debt securities issued/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x176 | cbi_RR:x2 |
| 080.030 | of which: Debt securities issued/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x176 | cbi_RR:x3 |
| 080.040 | of which: Debt securities issued/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x176 | cbi_RR:x4 |
| 080.050 | of which: Debt securities issued/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x6 | cbi_MC:x176 | cbi_RR:x5 |
| 089.010 | Loan commitments, financial guarantees and other commitments [notional amount]:/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | N/A | cbi_RR:x1 |
| 089.020 | Loan commitments, financial guarantees and other commitments [notional amount]:/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | N/A | cbi_RR:x2 |
| 089.030 | Loan commitments, financial guarantees and other commitments [notional amount]:/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | N/A | cbi_RR:x3 |
| 089.040 | Loan commitments, financial guarantees and other commitments [notional amount]:/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | N/A | cbi_RR:x4 |
| 089.050 | Loan commitments, financial guarantees and other commitments [notional amount]:/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | N/A | cbi_RR:x5 |
| 090.010 | Given/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x307 | cbi_RR:x1 |
| 090.020 | Given/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x307 | cbi_RR:x2 |
| 090.030 | Given/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x307 | cbi_RR:x3 |
| 090.040 | Given/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x307 | cbi_RR:x4 |
| 090.050 | Given/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x307 | cbi_RR:x5 |
| 100.010 | of which: doutbful financial guarantees and loan commitments/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x311 | cbi_RR:x1 |
| 100.020 | of which: doutbful financial guarantees and loan commitments/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x311 | cbi_RR:x2 |
| 100.030 | of which: doutbful financial guarantees and loan commitments/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x311 | cbi_RR:x3 |
| 100.040 | of which: doutbful financial guarantees and loan commitments/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x311 | cbi_RR:x4 |
| 100.050 | of which: doutbful financial guarantees and loan commitments/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x311 | cbi_RR:x5 |
| 110.010 | Received/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x308 | cbi_RR:x1 |
| 110.020 | Received/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x308 | cbi_RR:x2 |
| 110.030 | Received/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x308 | cbi_RR:x3 |
| 110.040 | Received/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x308 | cbi_RR:x4 |
| 110.050 | Received/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x308 | cbi_RR:x5 |
| 120.010 | Derivatives/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x309 | cbi_RR:x1 |
| 120.020 | Derivatives/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x309 | cbi_RR:x2 |
| 120.030 | Derivatives/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x309 | cbi_RR:x3 |
| 120.040 | Derivatives/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x309 | cbi_RR:x4 |
| 120.050 | Derivatives/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x309 | cbi_RR:x5 |
| 130.010 | Provisions for doubtful debts, guarantees and commitments/Parent and parent entities with joint control | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x310 | cbi_RR:x1 |
| 130.020 | Provisions for doubtful debts, guarantees and commitments/Subsidiaries | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x310 | cbi_RR:x2 |
| 130.030 | Provisions for doubtful debts, guarantees and commitments/Associates and joint ventures | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x310 | cbi_RR:x3 |
| 130.040 | Provisions for doubtful debts, guarantees and commitments/Key management of the entity or its parent | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x310 | cbi_RR:x4 |
| 130.050 | Provisions for doubtful debts, guarantees and commitments/Other related parties | cbi_met:mi31 | xbrli:monetaryItemType | instant | cbi_BA:x12 | cbi_MC:x310 | cbi_RR:x5 |