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Address	Label	Metrics	Data Type	Period Type	boi_dim:BCC	boi_dim:CSC	boi_dim:CUO	boi_dim:EFD	boi_dim:GAA	boi_dim:MCC	boi_dim:SEC	boi_dim:TIO	boi_dim:TIP
r0.1	label_boi_a2/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
r0.2	label_boi_a2/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
r0.3	label_boi_a2/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
r0.4	label_boi_a2/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
r0.5	label_boi_a2/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
r0.6	label_boi_a2/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
r0.7	label_boi_a2/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
r0.8	label_boi_a2/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
r0.9	label_boi_a2/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
r0.10	label_boi_a2/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
r0.11	label_boi_a2/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
r0.12	label_boi_a2/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
r0.13	label_boi_a2/Total	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
r0.14	label_boi_a2/Expected rate of return	boi_met:pi202	num:percentItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
r1.1	Israeli currency/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
r1.2	Israeli currency/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
r1.3	Israeli currency/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
r1.4	Israeli currency/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
r1.5	Israeli currency/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
r1.6	Israeli currency/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
r1.7	Israeli currency/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
r1.8	Israeli currency/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
r1.9	Israeli currency/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
r1.10	Israeli currency/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
r1.11	Israeli currency/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
r1.12	Israeli currency/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
r1.13	Israeli currency/Total	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	N/A	N/A
r1.14	Israeli currency/Expected rate of return	boi_met:pi202	num:percentItemType	instant	N/A	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	N/A	N/A
1.1	Assets/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x14	N/A
1.2	Assets/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x15	N/A
1.3	Assets/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x16	N/A
1.4	Assets/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x39	N/A
1.5	Assets/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x81	N/A
1.6	Assets/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x96	N/A
1.7	Assets/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x95	N/A
1.8	Assets/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x20	N/A
1.9	Assets/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x21	N/A
1.10	Assets/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x22	N/A
1.11	Assets/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x13	N/A
1.12	Assets/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	boi_TI:x23	N/A
1.13	Assets/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	N/A	N/A
1.14	Assets/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x1	N/A	N/A	N/A
2.1	of which: credit to the public/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x14	N/A
2.2	of which: credit to the public/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x15	N/A
2.3	of which: credit to the public/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x16	N/A
2.4	of which: credit to the public/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x39	N/A
2.5	of which: credit to the public/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x81	N/A
2.6	of which: credit to the public/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x96	N/A
2.7	of which: credit to the public/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x95	N/A
2.8	of which: credit to the public/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x20	N/A
2.9	of which: credit to the public/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x21	N/A
2.10	of which: credit to the public/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x22	N/A
2.11	of which: credit to the public/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x13	N/A
2.12	of which: credit to the public/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x23	N/A
2.13	of which: credit to the public/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	N/A	N/A
2.14	of which: credit to the public/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x8	boi_SE:x16	N/A	N/A
3.1	Liabilities/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x14	N/A
3.2	Liabilities/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x15	N/A
3.3	Liabilities/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x16	N/A
3.4	Liabilities/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x39	N/A
3.5	Liabilities/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x81	N/A
3.6	Liabilities/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x96	N/A
3.7	Liabilities/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x95	N/A
3.8	Liabilities/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x20	N/A
3.9	Liabilities/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x21	N/A
3.10	Liabilities/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x22	N/A
3.11	Liabilities/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x13	N/A
3.12	Liabilities/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	boi_TI:x23	N/A
3.13	Liabilities/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	N/A	N/A
3.14	Liabilities/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x3	N/A	N/A	N/A
4.1	of which: deposits of the public/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x14	N/A
4.2	of which: deposits of the public/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x15	N/A
4.3	of which: deposits of the public/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x16	N/A
4.4	of which: deposits of the public/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x39	N/A
4.5	of which: deposits of the public/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x81	N/A
4.6	of which: deposits of the public/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x96	N/A
4.7	of which: deposits of the public/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x95	N/A
4.8	of which: deposits of the public/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x20	N/A
4.9	of which: deposits of the public/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x21	N/A
4.10	of which: deposits of the public/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x22	N/A
4.11	of which: deposits of the public/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x13	N/A
4.12	of which: deposits of the public/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x23	N/A
4.13	of which: deposits of the public/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	N/A	N/A
4.14	of which: deposits of the public/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x1	N/A	N/A	boi_MC:x17	boi_SE:x16	N/A	N/A
5.1	Difference/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
5.2	Difference/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
5.3	Difference/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
5.4	Difference/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
5.5	Difference/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
5.6	Difference/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
5.7	Difference/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
5.8	Difference/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
5.9	Difference/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
5.10	Difference/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
5.11	Difference/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
5.12	Difference/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
5.13	Difference/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	N/A	N/A
5.14	Difference/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	N/A	N/A	N/A	N/A	N/A	N/A
6.1	Derivative instruments (except options)/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x14	N/A
6.2	Derivative instruments (except options)/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x15	N/A
6.3	Derivative instruments (except options)/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x16	N/A
6.4	Derivative instruments (except options)/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x39	N/A
6.5	Derivative instruments (except options)/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x81	N/A
6.6	Derivative instruments (except options)/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x96	N/A
6.7	Derivative instruments (except options)/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x95	N/A
6.8	Derivative instruments (except options)/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x20	N/A
6.9	Derivative instruments (except options)/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x21	N/A
6.10	Derivative instruments (except options)/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x22	N/A
6.11	Derivative instruments (except options)/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x13	N/A
6.12	Derivative instruments (except options)/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x23	N/A
6.13	Derivative instruments (except options)/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	N/A	N/A
6.14	Derivative instruments (except options)/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x51	N/A	N/A	N/A
7.1	Options (in terms of underlying asset)/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x14	N/A
7.2	Options (in terms of underlying asset)/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x15	N/A
7.3	Options (in terms of underlying asset)/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x16	N/A
7.4	Options (in terms of underlying asset)/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x39	N/A
7.5	Options (in terms of underlying asset)/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x81	N/A
7.6	Options (in terms of underlying asset)/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x96	N/A
7.7	Options (in terms of underlying asset)/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x95	N/A
7.8	Options (in terms of underlying asset)/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x20	N/A
7.9	Options (in terms of underlying asset)/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x21	N/A
7.10	Options (in terms of underlying asset)/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x22	N/A
7.11	Options (in terms of underlying asset)/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x13	N/A
7.12	Options (in terms of underlying asset)/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x23	N/A
7.13	Options (in terms of underlying asset)/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	N/A	N/A
7.14	Options (in terms of underlying asset)/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x2	N/A	boi_MC:x48	N/A	N/A	N/A
8.1	Difference after Derivative instruments influence/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x14	N/A
8.2	Difference after Derivative instruments influence/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x15	N/A
8.3	Difference after Derivative instruments influence/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x16	N/A
8.4	Difference after Derivative instruments influence/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x39	N/A
8.5	Difference after Derivative instruments influence/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x81	N/A
8.6	Difference after Derivative instruments influence/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x96	N/A
8.7	Difference after Derivative instruments influence/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x95	N/A
8.8	Difference after Derivative instruments influence/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x20	N/A
8.9	Difference after Derivative instruments influence/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x21	N/A
8.10	Difference after Derivative instruments influence/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x22	N/A
8.11	Difference after Derivative instruments influence/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x13	N/A
8.12	Difference after Derivative instruments influence/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	boi_TI:x23	N/A
8.13	Difference after Derivative instruments influence/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	N/A	N/A
8.14	Difference after Derivative instruments influence/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x1	boi_EF:x1	N/A	N/A	N/A	N/A	N/A
r10.1	Foreign currency/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
r10.2	Foreign currency/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
r10.3	Foreign currency/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
r10.4	Foreign currency/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
r10.5	Foreign currency/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
r10.6	Foreign currency/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
r10.7	Foreign currency/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
r10.8	Foreign currency/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
r10.9	Foreign currency/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
r10.10	Foreign currency/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
r10.11	Foreign currency/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
r10.12	Foreign currency/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
r10.13	Foreign currency/Total	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	N/A	N/A
r10.14	Foreign currency/Expected rate of return	boi_met:pi202	num:percentItemType	instant	N/A	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	N/A	N/A
9.1	Assets/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x14	N/A
9.2	Assets/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x15	N/A
9.3	Assets/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x16	N/A
9.4	Assets/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x39	N/A
9.5	Assets/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x81	N/A
9.6	Assets/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x96	N/A
9.7	Assets/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x95	N/A
9.8	Assets/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x20	N/A
9.9	Assets/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x21	N/A
9.10	Assets/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x22	N/A
9.11	Assets/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x13	N/A
9.12	Assets/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	boi_TI:x23	N/A
9.13	Assets/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	N/A	N/A
9.14	Assets/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x1	N/A	N/A	N/A
10.1	of which: credit to the public/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x14	N/A
10.2	of which: credit to the public/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x15	N/A
10.3	of which: credit to the public/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x16	N/A
10.4	of which: credit to the public/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x39	N/A
10.5	of which: credit to the public/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x81	N/A
10.6	of which: credit to the public/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x96	N/A
10.7	of which: credit to the public/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x95	N/A
10.8	of which: credit to the public/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x20	N/A
10.9	of which: credit to the public/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x21	N/A
10.10	of which: credit to the public/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x22	N/A
10.11	of which: credit to the public/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x13	N/A
10.12	of which: credit to the public/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x23	N/A
10.13	of which: credit to the public/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	N/A	N/A
10.14	of which: credit to the public/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x8	boi_SE:x16	N/A	N/A
11.1	Liabilities/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x14	N/A
11.2	Liabilities/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x15	N/A
11.3	Liabilities/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x16	N/A
11.4	Liabilities/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x39	N/A
11.5	Liabilities/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x81	N/A
11.6	Liabilities/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x96	N/A
11.7	Liabilities/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x95	N/A
11.8	Liabilities/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x20	N/A
11.9	Liabilities/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x21	N/A
11.10	Liabilities/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x22	N/A
11.11	Liabilities/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x13	N/A
11.12	Liabilities/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	boi_TI:x23	N/A
11.13	Liabilities/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	N/A	N/A
11.14	Liabilities/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x3	N/A	N/A	N/A
12.1	of which: deposits of the public/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x14	N/A
12.2	of which: deposits of the public/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x15	N/A
12.3	of which: deposits of the public/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x16	N/A
12.4	of which: deposits of the public/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x39	N/A
12.5	of which: deposits of the public/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x81	N/A
12.6	of which: deposits of the public/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x96	N/A
12.7	of which: deposits of the public/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x95	N/A
12.8	of which: deposits of the public/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x20	N/A
12.9	of which: deposits of the public/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x21	N/A
12.10	of which: deposits of the public/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x22	N/A
12.11	of which: deposits of the public/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x13	N/A
12.12	of which: deposits of the public/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x23	N/A
12.13	of which: deposits of the public/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	N/A	N/A
12.14	of which: deposits of the public/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x2	boi_CS:x1	boi_CU:x13	N/A	N/A	boi_MC:x17	boi_SE:x16	N/A	N/A
13.1	Difference/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
13.2	Difference/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
13.3	Difference/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
13.4	Difference/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
13.5	Difference/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
13.6	Difference/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
13.7	Difference/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
13.8	Difference/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
13.9	Difference/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
13.10	Difference/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
13.11	Difference/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
13.12	Difference/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
13.13	Difference/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	N/A	N/A
13.14	Difference/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	N/A	N/A	N/A	N/A	N/A
14.1	of which: Dollar difference/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
14.2	of which: Dollar difference/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
14.3	of which: Dollar difference/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
14.4	of which: Dollar difference/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
14.5	of which: Dollar difference/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
14.6	of which: Dollar difference/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
14.7	of which: Dollar difference/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
14.8	of which: Dollar difference/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
14.9	of which: Dollar difference/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
14.10	of which: Dollar difference/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
14.11	of which: Dollar difference/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
14.12	of which: Dollar difference/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
14.13	of which: Dollar difference/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	N/A	N/A
14.14	of which: Dollar difference/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x2	N/A	N/A	N/A	N/A	N/A	N/A
15.1	of which: Foreign operations difference/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x14	N/A
15.2	of which: Foreign operations difference/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x15	N/A
15.3	of which: Foreign operations difference/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x16	N/A
15.4	of which: Foreign operations difference/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x39	N/A
15.5	of which: Foreign operations difference/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x81	N/A
15.6	of which: Foreign operations difference/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x96	N/A
15.7	of which: Foreign operations difference/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x95	N/A
15.8	of which: Foreign operations difference/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x20	N/A
15.9	of which: Foreign operations difference/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x21	N/A
15.10	of which: Foreign operations difference/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x22	N/A
15.11	of which: Foreign operations difference/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x13	N/A
15.12	of which: Foreign operations difference/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	boi_TI:x23	N/A
15.13	of which: Foreign operations difference/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	N/A	N/A
15.14	of which: Foreign operations difference/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	N/A	boi_GA:x2	N/A	N/A	N/A	N/A
16.1	Derivative instruments (except options)/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x14	N/A
16.2	Derivative instruments (except options)/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x15	N/A
16.3	Derivative instruments (except options)/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x16	N/A
16.4	Derivative instruments (except options)/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x39	N/A
16.5	Derivative instruments (except options)/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x81	N/A
16.6	Derivative instruments (except options)/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x96	N/A
16.7	Derivative instruments (except options)/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x95	N/A
16.8	Derivative instruments (except options)/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x20	N/A
16.9	Derivative instruments (except options)/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x21	N/A
16.10	Derivative instruments (except options)/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x22	N/A
16.11	Derivative instruments (except options)/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x13	N/A
16.12	Derivative instruments (except options)/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	boi_TI:x23	N/A
16.13	Derivative instruments (except options)/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	N/A	N/A
16.14	Derivative instruments (except options)/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x51	N/A	N/A	N/A
17.1	Options (in terms of underlying asset)/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x14	N/A
17.2	Options (in terms of underlying asset)/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x15	N/A
17.3	Options (in terms of underlying asset)/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x16	N/A
17.4	Options (in terms of underlying asset)/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x39	N/A
17.5	Options (in terms of underlying asset)/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x81	N/A
17.6	Options (in terms of underlying asset)/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x96	N/A
17.7	Options (in terms of underlying asset)/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x95	N/A
17.8	Options (in terms of underlying asset)/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x20	N/A
17.9	Options (in terms of underlying asset)/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x21	N/A
17.10	Options (in terms of underlying asset)/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x22	N/A
17.11	Options (in terms of underlying asset)/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x13	N/A
17.12	Options (in terms of underlying asset)/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	boi_TI:x23	N/A
17.13	Options (in terms of underlying asset)/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	N/A	N/A
17.14	Options (in terms of underlying asset)/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x2	N/A	boi_MC:x48	N/A	N/A	N/A
18.1	Difference after Derivative instruments influence/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x14	N/A
18.2	Difference after Derivative instruments influence/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x15	N/A
18.3	Difference after Derivative instruments influence/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x16	N/A
18.4	Difference after Derivative instruments influence/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x39	N/A
18.5	Difference after Derivative instruments influence/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x81	N/A
18.6	Difference after Derivative instruments influence/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x96	N/A
18.7	Difference after Derivative instruments influence/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x95	N/A
18.8	Difference after Derivative instruments influence/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x20	N/A
18.9	Difference after Derivative instruments influence/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x21	N/A
18.10	Difference after Derivative instruments influence/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x22	N/A
18.11	Difference after Derivative instruments influence/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x13	N/A
18.12	Difference after Derivative instruments influence/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	boi_TI:x23	N/A
18.13	Difference after Derivative instruments influence/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	N/A	N/A
18.14	Difference after Derivative instruments influence/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	boi_CU:x13	boi_EF:x1	N/A	N/A	N/A	N/A	N/A
r21.1	Total/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
r21.2	Total/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
r21.3	Total/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
r21.4	Total/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
r21.5	Total/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
r21.6	Total/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
r21.7	Total/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
r21.8	Total/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
r21.9	Total/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
r21.10	Total/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
r21.11	Total/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
r21.12	Total/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
r21.13	Total/Total	boi_met:mi203	xbrli:monetaryItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
r21.14	Total/Expected rate of return	boi_met:pi202	num:percentItemType	instant	N/A	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
19.1	Total Assets/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x14	N/A
19.2	Total Assets/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x15	N/A
19.3	Total Assets/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x16	N/A
19.4	Total Assets/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x39	N/A
19.5	Total Assets/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x81	N/A
19.6	Total Assets/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x96	N/A
19.7	Total Assets/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x95	N/A
19.8	Total Assets/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x20	N/A
19.9	Total Assets/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x21	N/A
19.10	Total Assets/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x22	N/A
19.11	Total Assets/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x13	N/A
19.12	Total Assets/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	boi_TI:x23	N/A
19.13	Total Assets/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	N/A	N/A
19.14	Total Assets/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x1	N/A	N/A	N/A
20.1	of which: credit to the public/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x14	N/A
20.2	of which: credit to the public/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x15	N/A
20.3	of which: credit to the public/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x16	N/A
20.4	of which: credit to the public/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x39	N/A
20.5	of which: credit to the public/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x81	N/A
20.6	of which: credit to the public/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x96	N/A
20.7	of which: credit to the public/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x95	N/A
20.8	of which: credit to the public/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x20	N/A
20.9	of which: credit to the public/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x21	N/A
20.10	of which: credit to the public/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x22	N/A
20.11	of which: credit to the public/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x13	N/A
20.12	of which: credit to the public/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	boi_TI:x23	N/A
20.13	of which: credit to the public/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	N/A	N/A
20.14	of which: credit to the public/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	boi_MC:x8	boi_SE:x16	N/A	N/A
21.1	Liabilities/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x14	N/A
21.2	Liabilities/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x15	N/A
21.3	Liabilities/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x16	N/A
21.4	Liabilities/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x39	N/A
21.5	Liabilities/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x81	N/A
21.6	Liabilities/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x96	N/A
21.7	Liabilities/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x95	N/A
21.8	Liabilities/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x20	N/A
21.9	Liabilities/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x21	N/A
21.10	Liabilities/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x22	N/A
21.11	Liabilities/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x13	N/A
21.12	Liabilities/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	boi_TI:x23	N/A
21.13	Liabilities/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	N/A	N/A
21.14	Liabilities/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x3	N/A	N/A	N/A
22.1	of which: deposits of the public/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x14	N/A
22.2	of which: deposits of the public/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x15	N/A
22.3	of which: deposits of the public/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x16	N/A
22.4	of which: deposits of the public/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x39	N/A
22.5	of which: deposits of the public/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x81	N/A
22.6	of which: deposits of the public/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x96	N/A
22.7	of which: deposits of the public/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x95	N/A
22.8	of which: deposits of the public/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x20	N/A
22.9	of which: deposits of the public/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x21	N/A
22.10	of which: deposits of the public/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x22	N/A
22.11	of which: deposits of the public/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x13	N/A
22.12	of which: deposits of the public/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	boi_TI:x23	N/A
22.13	of which: deposits of the public/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	N/A	N/A
22.14	of which: deposits of the public/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x2	boi_CS:x1	N/A	N/A	N/A	boi_MC:x17	boi_SE:x16	N/A	N/A
23.1	Difference/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x14	N/A
23.2	Difference/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x15	N/A
23.3	Difference/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x16	N/A
23.4	Difference/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x39	N/A
23.5	Difference/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x81	N/A
23.6	Difference/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x96	N/A
23.7	Difference/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x95	N/A
23.8	Difference/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x20	N/A
23.9	Difference/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x21	N/A
23.10	Difference/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x22	N/A
23.11	Difference/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x13	N/A
23.12	Difference/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x23	N/A
23.13	Difference/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
23.14	Difference/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x5	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
24.1	Including past due assets at the amount of:/Upon demand and up to one month	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x14	boi_TI:x82
24.2	Including past due assets at the amount of:/One month to three months	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x15	boi_TI:x82
24.3	Including past due assets at the amount of:/Three months to one year	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x16	boi_TI:x82
24.4	Including past due assets at the amount of:/One year to two years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x39	boi_TI:x82
24.5	Including past due assets at the amount of:/Two years to three years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x81	boi_TI:x82
24.6	Including past due assets at the amount of:/Three years to four years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x96	boi_TI:x82
24.7	Including past due assets at the amount of:/Four years to five years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x95	boi_TI:x82
24.8	Including past due assets at the amount of:/Five years to ten years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x20	boi_TI:x82
24.9	Including past due assets at the amount of:/Ten years to twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x21	boi_TI:x82
24.10	Including past due assets at the amount of:/Over twenty years	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x22	boi_TI:x82
24.11	Including past due assets at the amount of:/Total cash flows	boi_met:mi10	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x13	boi_TI:x82
24.12	Including past due assets at the amount of:/Without fixed maturity	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	boi_TI:x23	boi_TI:x82
24.13	Including past due assets at the amount of:/Total	boi_met:mi203	xbrli:monetaryItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	boi_TI:x82
24.14	Including past due assets at the amount of:/Expected rate of return	boi_met:pi202	num:percentItemType	instant	boi_BC:x1	boi_CS:x1	N/A	N/A	N/A	N/A	N/A	N/A	boi_TI:x82