| r0.1 | label_boi_a2/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | N/A | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| r0.2 | label_boi_a2/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | N/A | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| r0.3 | label_boi_a2/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | N/A | boi_MC:x1 | N/A | boi_RP:x24 |
| 1.1 | Israel/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 1.2 | Israel/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x1 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 1.3 | Israel/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x1 | N/A | boi_RP:x24 |
| 2.1 | North America/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x3 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 2.2 | North America/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x3 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 2.3 | North America/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x3 | boi_MC:x1 | N/A | boi_RP:x24 |
| 3.1 | South America/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x12 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 3.2 | South America/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x12 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 3.3 | South America/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x12 | boi_MC:x1 | N/A | boi_RP:x24 |
| 4.1 | UK/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x1142 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 4.2 | UK/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x1142 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 4.3 | UK/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x1142 | boi_MC:x1 | N/A | boi_RP:x24 |
| 5.1 | Switzerland/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x1241 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 5.2 | Switzerland/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x1241 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 5.3 | Switzerland/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x1241 | boi_MC:x1 | N/A | boi_RP:x24 |
| 6.1 | France/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x1210 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 6.2 | France/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x1210 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 6.3 | France/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x1210 | boi_MC:x1 | N/A | boi_RP:x24 |
| 7.1 | Other Western Europe/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x13 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 7.2 | Other Western Europe/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x13 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 7.3 | Other Western Europe/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x13 | boi_MC:x1 | N/A | boi_RP:x24 |
| 8.1 | Others/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x14 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 8.2 | Others/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x14 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 8.3 | Others/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x14 | boi_MC:x1 | N/A | boi_RP:x24 |
| 9.1 | Total overseas/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | boi_GA:x2 | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 9.2 | Total overseas/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | boi_GA:x2 | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 9.3 | Total overseas/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | boi_GA:x2 | boi_MC:x1 | N/A | boi_RP:x24 |
| 10.1 | Total consolidated/Income | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | N/A | boi_CS:x2 | N/A | boi_MC:x455 | boi_MU:x1 | boi_RP:x25 |
| 10.2 | Total consolidated/Net profit attributed to shareholders of the banking corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CN:x1 | boi_CS:x2 | N/A | boi_MC:x121 | boi_MU:x1 | boi_RP:x25 |
| 10.3 | Total consolidated/Total assets | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | N/A | boi_CS:x2 | N/A | boi_MC:x1 | N/A | boi_RP:x24 |