| r0.1 | label_boi_a2/Interest income | boi_met:mi1201 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | N/A | boi_RP:x24 |
| r0.2 | label_boi_a2/Non-interest financing income | boi_met:mi1202 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | N/A | boi_RP:x24 |
| r0.3 | label_boi_a2/Total* | boi_met:mi1203 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | N/A | boi_RP:x24 |
| r1.1 | Parallel changes/Interest income | boi_met:mi1201 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | N/A | N/A | boi_RP:x24 |
| r1.2 | Parallel changes/Non-interest financing income | boi_met:mi1202 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | N/A | N/A | boi_RP:x24 |
| r1.3 | Parallel changes/Total* | boi_met:mi1203 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | N/A | N/A | boi_RP:x24 |
| 1.1 | A parallel increase of 1%/Interest income | boi_met:mi1201 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x1 | N/A | boi_RP:x24 |
| 1.2 | A parallel increase of 1%/Non-interest financing income | boi_met:mi1202 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x1 | N/A | boi_RP:x24 |
| 1.3 | A parallel increase of 1%/Total* | boi_met:mi1203 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x1 | N/A | boi_RP:x24 |
| 2.1 | of which: banking portfolio/Interest income | boi_met:mi1201 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x1 | boi_PL:x66 | boi_RP:x24 |
| 2.2 | of which: banking portfolio/Non-interest financing income | boi_met:mi1202 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x1 | boi_PL:x66 | boi_RP:x24 |
| 2.3 | of which: banking portfolio/Total* | boi_met:mi1203 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x1 | boi_PL:x66 | boi_RP:x24 |
| 3.1 | A parallel decline of 1%/Interest income | boi_met:mi1201 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x3 | N/A | boi_RP:x24 |
| 3.2 | A parallel decline of 1%/Non-interest financing income | boi_met:mi1202 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x3 | N/A | boi_RP:x24 |
| 3.3 | A parallel decline of 1%/Total* | boi_met:mi1203 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x3 | N/A | boi_RP:x24 |
| 4.1 | of which: banking portfolio/Interest income | boi_met:mi1201 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x3 | boi_PL:x66 | boi_RP:x24 |
| 4.2 | of which: banking portfolio/Non-interest financing income | boi_met:mi1202 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x3 | boi_PL:x66 | boi_RP:x24 |
| 4.3 | of which: banking portfolio/Total* | boi_met:mi1203 | xbrli:monetaryItemType | instant | boi_BC:x13 | boi_CS:x2 | boi_PI:x3 | boi_PL:x66 | boi_RP:x24 |