| r0.1 | label_boi_a2/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | N/A | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r0.2 | label_boi_a2/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | N/A | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r0.3 | label_boi_a2/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | N/A | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r0.4 | label_boi_a2/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | N/A | N/A | N/A | boi_RP:x24 | N/A | N/A |
| r0.5 | label_boi_a2/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | N/A | N/A | N/A | boi_RP:x24 | N/A | N/A |
| r1.1 | a.Items measured at fair value on a recurring basis - Assets/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r1.2 | a.Items measured at fair value on a recurring basis - Assets/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r1.3 | a.Items measured at fair value on a recurring basis - Assets/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r1.4 | a.Items measured at fair value on a recurring basis - Assets/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r1.5 | a.Items measured at fair value on a recurring basis - Assets/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r2.1 | Bonds available for sale and non trade securities/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r2.2 | Bonds available for sale and non trade securities/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r2.3 | Bonds available for sale and non trade securities/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r2.4 | Bonds available for sale and non trade securities/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r2.5 | Bonds available for sale and non trade securities/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 1.1 | Israel Government/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x11 |
| 1.2 | Israel Government/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x11 |
| 1.3 | Israel Government/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x11 |
| 1.4 | Israel Government/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 1.5 | Israel Government/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 2.1 | Foreign governments/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x11 |
| 2.2 | Foreign governments/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x11 |
| 2.3 | Foreign governments/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x11 |
| 2.4 | Foreign governments/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 2.5 | Foreign governments/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 3.1 | Financial institutions in Israel/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x9 |
| 3.2 | Financial institutions in Israel/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x9 |
| 3.3 | Financial institutions in Israel/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x9 |
| 3.4 | Financial institutions in Israel/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 3.5 | Financial institutions in Israel/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 4.1 | Foreign financial institutions/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x9 |
| 4.2 | Foreign financial institutions/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x9 |
| 4.3 | Foreign financial institutions/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x9 |
| 4.4 | Foreign financial institutions/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 4.5 | Foreign financial institutions/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 5.1 | Asset-backed or mortgage-backed/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 5.2 | Asset-backed or mortgage-backed/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 5.3 | Asset-backed or mortgage-backed/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 5.4 | Asset-backed or mortgage-backed/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 5.5 | Asset-backed or mortgage-backed/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 6.1 | Of others in Israel/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x69 |
| 6.2 | Of others in Israel/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x69 |
| 6.3 | Of others in Israel/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x69 |
| 6.4 | Of others in Israel/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 6.5 | Of others in Israel/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 7.1 | Of others, foreign/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x69 |
| 7.2 | Of others, foreign/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x69 |
| 7.3 | Of others, foreign/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x69 |
| 7.4 | Of others, foreign/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 7.5 | Of others, foreign/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 8.1 | Shares/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 8.2 | Shares/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 8.3 | Shares/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 8.4 | Shares/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 8.5 | Shares/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 9.1 | Total securities available for sale/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 9.2 | Total securities available for sale/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 9.3 | Total securities available for sale/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x1 | boi_PL:x1 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 9.4 | Total securities available for sale/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x2 | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 9.5 | Total securities available for sale/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | N/A | boi_PL:x1 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r12.1 | Securities for trading -/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r12.2 | Securities for trading -/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r12.3 | Securities for trading -/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r12.4 | Securities for trading -/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r12.5 | Securities for trading -/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 10.1 | Israel Government/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x11 |
| 10.2 | Israel Government/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x11 |
| 10.3 | Israel Government/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x11 |
| 10.4 | Israel Government/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 10.5 | Israel Government/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 11.1 | Foreign governments/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x11 |
| 11.2 | Foreign governments/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x11 |
| 11.3 | Foreign governments/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x11 |
| 11.4 | Foreign governments/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 11.5 | Foreign governments/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x11 |
| 12.1 | Financial institutions in Israel/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x9 |
| 12.2 | Financial institutions in Israel/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x9 |
| 12.3 | Financial institutions in Israel/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x9 |
| 12.4 | Financial institutions in Israel/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 12.5 | Financial institutions in Israel/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 13.1 | Foreign financial institutions/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x9 |
| 13.2 | Foreign financial institutions/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x9 |
| 13.3 | Foreign financial institutions/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x9 |
| 13.4 | Foreign financial institutions/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 13.5 | Foreign financial institutions/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x9 |
| 14.1 | Asset-backed or mortgage-backed/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 14.2 | Asset-backed or mortgage-backed/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 14.3 | Asset-backed or mortgage-backed/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 14.4 | Asset-backed or mortgage-backed/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 14.5 | Asset-backed or mortgage-backed/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x942 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 15.1 | Of others in Israel/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x69 |
| 15.2 | Of others in Israel/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x69 |
| 15.3 | Of others in Israel/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x69 |
| 15.4 | Of others in Israel/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 15.5 | Of others in Israel/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x1 | boi_MC:x941 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 16.1 | Of others, foreign/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | boi_SE:x69 |
| 16.2 | Of others, foreign/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | boi_SE:x69 |
| 16.3 | Of others, foreign/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | boi_SE:x69 |
| 16.4 | Of others, foreign/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 16.5 | Of others, foreign/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | boi_GA:x2 | boi_MC:x941 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | boi_SE:x69 |
| 17.1 | Shares/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 17.2 | Shares/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 17.3 | Shares/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 17.4 | Shares/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 17.5 | Shares/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x943 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 18.1 | Total securities available for sale/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 18.2 | Total securities available for sale/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 18.3 | Total securities available for sale/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x1 | boi_PL:x2 | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 18.4 | Total securities available for sale/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | boi_NE:x2 | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 18.5 | Total securities available for sale/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x940 | N/A | boi_PL:x2 | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r22.1 | Assets in respect of derivative instruments/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r22.2 | Assets in respect of derivative instruments/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r22.3 | Assets in respect of derivative instruments/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r22.4 | Assets in respect of derivative instruments/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r22.5 | Assets in respect of derivative instruments/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 19.1 | Shekel-CPI contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x12 | N/A |
| 19.2 | Shekel-CPI contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x12 | N/A |
| 19.3 | Shekel-CPI contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x12 | N/A |
| 19.4 | Shekel-CPI contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x12 | N/A |
| 19.5 | Shekel-CPI contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x12 | N/A |
| 20.1 | Other interest contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x13 | N/A |
| 20.2 | Other interest contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x13 | N/A |
| 20.3 | Other interest contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x13 | N/A |
| 20.4 | Other interest contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x13 | N/A |
| 20.5 | Other interest contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x13 | N/A |
| 21.1 | Foreign-currency contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x10 | N/A |
| 21.2 | Foreign-currency contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x10 | N/A |
| 21.3 | Foreign-currency contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x10 | N/A |
| 21.4 | Foreign-currency contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x10 | N/A |
| 21.5 | Foreign-currency contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x10 | N/A |
| 22.1 | Contracts in respect of shares/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x9 | N/A |
| 22.2 | Contracts in respect of shares/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x9 | N/A |
| 22.3 | Contracts in respect of shares/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x9 | N/A |
| 22.4 | Contracts in respect of shares/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x9 | N/A |
| 22.5 | Contracts in respect of shares/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x9 | N/A |
| 23.1 | Credit derivatives/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x16 | N/A |
| 23.2 | Credit derivatives/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x16 | N/A |
| 23.3 | Credit derivatives/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x16 | N/A |
| 23.4 | Credit derivatives/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 23.5 | Credit derivatives/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 24.1 | Commodity and other contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x16 | N/A |
| 24.2 | Commodity and other contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x16 | N/A |
| 24.3 | Commodity and other contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x16 | N/A |
| 24.4 | Commodity and other contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 24.5 | Commodity and other contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 25.1 | Total assets in respect of derivative instruments/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 25.2 | Total assets in respect of derivative instruments/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 25.3 | Total assets in respect of derivative instruments/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 25.4 | Total assets in respect of derivative instruments/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 25.5 | Total assets in respect of derivative instruments/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 26.1 | Assets - other/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x947 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 26.2 | Assets - other/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x947 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 26.3 | Assets - other/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x947 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 26.4 | Assets - other/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x947 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 26.5 | Assets - other/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x947 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 27.1 | Total assets/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x1 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 27.2 | Total assets/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x1 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 27.3 | Total assets/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x1 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 27.4 | Total assets/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x1 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 27.5 | Total assets/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x1 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r32.1 | a.Items measured at fair value on a recurring basis - Liabilities/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r32.2 | a.Items measured at fair value on a recurring basis - Liabilities/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r32.3 | a.Items measured at fair value on a recurring basis - Liabilities/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r32.4 | a.Items measured at fair value on a recurring basis - Liabilities/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r32.5 | a.Items measured at fair value on a recurring basis - Liabilities/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r33.1 | Liabilities in respect of derivative instruments/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r33.2 | Liabilities in respect of derivative instruments/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r33.3 | Liabilities in respect of derivative instruments/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r33.4 | Liabilities in respect of derivative instruments/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r33.5 | Liabilities in respect of derivative instruments/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 28.1 | Shekel-CPI contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x12 | N/A |
| 28.2 | Shekel-CPI contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x12 | N/A |
| 28.3 | Shekel-CPI contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x12 | N/A |
| 28.4 | Shekel-CPI contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x12 | N/A |
| 28.5 | Shekel-CPI contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x12 | N/A |
| 29.1 | Other interest contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x13 | N/A |
| 29.2 | Other interest contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x13 | N/A |
| 29.3 | Other interest contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x13 | N/A |
| 29.4 | Other interest contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x13 | N/A |
| 29.5 | Other interest contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x13 | N/A |
| 30.1 | Foreign-currency contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x10 | N/A |
| 30.2 | Foreign-currency contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x10 | N/A |
| 30.3 | Foreign-currency contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x10 | N/A |
| 30.4 | Foreign-currency contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x10 | N/A |
| 30.5 | Foreign-currency contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x10 | N/A |
| 31.1 | Contracts in respect of shares/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x9 | N/A |
| 31.2 | Contracts in respect of shares/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x9 | N/A |
| 31.3 | Contracts in respect of shares/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x9 | N/A |
| 31.4 | Contracts in respect of shares/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x9 | N/A |
| 31.5 | Contracts in respect of shares/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x9 | N/A |
| 32.1 | Credit derivatives/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x16 | N/A |
| 32.2 | Credit derivatives/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x16 | N/A |
| 32.3 | Credit derivatives/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x16 | N/A |
| 32.4 | Credit derivatives/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 32.5 | Credit derivatives/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x945 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 33.1 | Commodity and other contracts/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | boi_RT:x16 | N/A |
| 33.2 | Commodity and other contracts/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | boi_RT:x16 | N/A |
| 33.3 | Commodity and other contracts/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | boi_RT:x16 | N/A |
| 33.4 | Commodity and other contracts/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 33.5 | Commodity and other contracts/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x946 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | boi_RT:x16 | N/A |
| 34.1 | Total assets in respect of derivative instruments/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 34.2 | Total assets in respect of derivative instruments/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 34.3 | Total assets in respect of derivative instruments/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 34.4 | Total assets in respect of derivative instruments/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 34.5 | Total assets in respect of derivative instruments/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x944 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 35.1 | Liabilities - other/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x960 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 35.2 | Liabilities - other/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x960 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 35.3 | Liabilities - other/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x960 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 35.4 | Liabilities - other/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x960 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 35.5 | Liabilities - other/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x960 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 36.1 | Total liabilities/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x3 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 36.2 | Total liabilities/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x3 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 36.3 | Total liabilities/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x3 | boi_NE:x1 | N/A | boi_PL:x48 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 36.4 | Total liabilities/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x3 | boi_NE:x2 | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| 36.5 | Total liabilities/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x3 | N/A | N/A | boi_PL:x48 | N/A | boi_RP:x24 | N/A | N/A |
| r43.1 | b. Items measured at fair value on a non-recurring basis/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| r43.2 | b. Items measured at fair value on a non-recurring basis/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| r43.3 | b. Items measured at fair value on a non-recurring basis/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| r43.4 | b. Items measured at fair value on a non-recurring basis/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | boi_NE:x2 | N/A | boi_PL:x47 | N/A | boi_RP:x24 | N/A | N/A |
| r43.5 | b. Items measured at fair value on a non-recurring basis/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | boi_FN:x1 | N/A | N/A | N/A | N/A | boi_PL:x47 | N/A | boi_RP:x24 | N/A | N/A |
| 37.1 | Impaired credit, collection of which is dependent on collateral/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x672 | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 37.2 | Impaired credit, collection of which is dependent on collateral/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x672 | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 37.3 | Impaired credit, collection of which is dependent on collateral/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x672 | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 37.4 | Impaired credit, collection of which is dependent on collateral/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x672 | boi_NE:x2 | N/A | boi_PL:x47 | N/A | boi_RP:x24 | N/A | N/A |
| 37.5 | Impaired credit, collection of which is dependent on collateral/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x672 | N/A | N/A | boi_PL:x47 | N/A | boi_RP:x24 | N/A | N/A |
| 38.1 | Other/Quoted prices Level 1 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x5 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x673 | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x38 | boi_RP:x24 | N/A | N/A |
| 38.2 | Other/Observed data Level 2 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x5 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x673 | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x39 | boi_RP:x24 | N/A | N/A |
| 38.3 | Other/Unobserved data Level 3 | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x5 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x673 | boi_NE:x1 | N/A | boi_PL:x47 | boi_PL:x40 | boi_RP:x24 | N/A | N/A |
| 38.4 | Other/Effect of offset agreements | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x5 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x673 | boi_NE:x2 | N/A | boi_PL:x47 | N/A | boi_RP:x24 | N/A | N/A |
| 38.5 | Other/Total fair value | boi_met:mi5 | xbrli:monetaryItemType | instant | boi_BC:x5 | boi_CS:x2 | boi_FN:x1 | N/A | boi_MC:x673 | N/A | N/A | boi_PL:x47 | N/A | boi_RP:x24 | N/A | N/A |
Index
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Constraints