| r0.1 | label_boi_a2/Non-indexed | | | | N/A | boi_CS:x2 | boi_CU:x5 | N/A | N/A | boi_RP:x24 |
| r0.2 | label_boi_a2/CPI-indexed | | | | N/A | boi_CS:x2 | boi_CU:x6 | N/A | N/A | boi_RP:x24 |
| r0.3 | label_boi_a2/USD | | | | N/A | boi_CS:x2 | boi_CU:x16 | N/A | N/A | boi_RP:x24 |
| r0.4 | label_boi_a2/Other | | | | N/A | boi_CS:x2 | boi_CU:x33 | N/A | N/A | boi_RP:x24 |
| r0.5 | label_boi_a2/Total | | | | N/A | boi_CS:x2 | N/A | N/A | N/A | boi_RP:x24 |
| r1.1 | Fair value of financial instruments before effect of hypothetical changes in interest rates/Non-indexed | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x5 | boi_EF:x7 | N/A | boi_RP:x24 |
| r1.2 | Fair value of financial instruments before effect of hypothetical changes in interest rates/CPI-indexed | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x6 | boi_EF:x7 | N/A | boi_RP:x24 |
| r1.3 | Fair value of financial instruments before effect of hypothetical changes in interest rates/USD | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x16 | boi_EF:x7 | N/A | boi_RP:x24 |
| r1.4 | Fair value of financial instruments before effect of hypothetical changes in interest rates/Other | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x33 | boi_EF:x7 | N/A | boi_RP:x24 |
| r1.5 | Fair value of financial instruments before effect of hypothetical changes in interest rates/Total | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | N/A | boi_EF:x7 | N/A | boi_RP:x24 |
| 1.1 | Adjusted net fair value1/Non-indexed | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x5 | boi_EF:x7 | N/A | boi_RP:x24 |
| 1.2 | Adjusted net fair value1/CPI-indexed | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x6 | boi_EF:x7 | N/A | boi_RP:x24 |
| 1.3 | Adjusted net fair value1/USD | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x16 | boi_EF:x7 | N/A | boi_RP:x24 |
| 1.4 | Adjusted net fair value1/Other | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x33 | boi_EF:x7 | N/A | boi_RP:x24 |
| 1.5 | Adjusted net fair value1/Total | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | N/A | boi_EF:x7 | N/A | boi_RP:x24 |
| 2.1 | of which: banking portfolio/Non-indexed | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x5 | boi_EF:x7 | boi_PL:x66 | boi_RP:x24 |
| 2.2 | of which: banking portfolio/CPI-indexed | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x6 | boi_EF:x7 | boi_PL:x66 | boi_RP:x24 |
| 2.3 | of which: banking portfolio/USD | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x16 | boi_EF:x7 | boi_PL:x66 | boi_RP:x24 |
| 2.4 | of which: banking portfolio/Other | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_CU:x33 | boi_EF:x7 | boi_PL:x66 | boi_RP:x24 |
| 2.5 | of which: banking portfolio/Total | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | N/A | boi_EF:x7 | boi_PL:x66 | boi_RP:x24 |