Statement Of Changes In Equity [Abstract]

Bank of Ireland GP - Filing #5615189

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	10,473,000,000 EUR	—	456,000,000 EUR	—	1,003,000,000 EUR	3,000,000 EUR	632,000,000 EUR	7,000,000 EUR	—	—	32,000,000 EUR	—	—	—	—	41,000,000 EUR	686,000,000 EUR	1,059,000,000 EUR	—	23,000,000 EUR	13,009,000,000 EUR	11,947,000,000 EUR	—	—	—	—	12,561,000,000 EUR	3,000,000 EUR	10,285,000,000 EUR	30,000,000 EUR	—	—	—	—	—	456,000,000 EUR	—	1,057,000,000 EUR	757,000,000 EUR	7,000,000 EUR	22,000,000 EUR	43,000,000 EUR	966,000,000 EUR	—	593,000,000 EUR	—	—	—	11,592,000,000 EUR	11,522,000,000 EUR	50,000,000 EUR	67,000,000 EUR	456,000,000 EUR	9,230,000,000 EUR	10,000,000 EUR	1,070,000,000 EUR	786,000,000 EUR	17,000,000 EUR	966,000,000 EUR	31,000,000 EUR	527,000,000 EUR	10,489,000,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	– EUR	– EUR	– EUR	—	– EUR	—	– EUR	—	—	—	—	1,531,000,000 EUR	– EUR	—	– EUR	1,531,000,000 EUR	– EUR	– EUR	—	—	—	– EUR	—	—	—	1,531,000,000 EUR	– EUR	1,601,000,000 EUR	– EUR	—	—	—	—	6,000,000 EUR	1,595,000,000 EUR	– EUR	– EUR	– EUR	—	– EUR	—	—	—	—	—	—	– EUR	—	– EUR	– EUR	1,595,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	– EUR	– EUR	– EUR	—	– EUR	—	125,000,000 EUR	—	—	—	—	271,000,000 EUR	2,000,000 EUR	—	– EUR	395,000,000 EUR	– EUR	2,000,000 EUR	—	—	—	1,000,000 EUR	—	—	—	395,000,000 EUR	– EUR	36,000,000 EUR	– EUR	—	—	—	—	– EUR	28,000,000 EUR	– EUR	20,000,000 EUR	29,000,000 EUR	—	– EUR	—	—	—	—	—	—	5,000,000 EUR	—	– EUR	12,000,000 EUR	36,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	– EUR	– EUR	– EUR	—	– EUR	—	125,000,000 EUR	—	—	—	—	1,802,000,000 EUR	2,000,000 EUR	—	– EUR	1,926,000,000 EUR	– EUR	2,000,000 EUR	—	—	—	1,000,000 EUR	—	—	—	1,926,000,000 EUR	– EUR	1,565,000,000 EUR	– EUR	—	—	—	—	6,000,000 EUR	1,567,000,000 EUR	– EUR	20,000,000 EUR	29,000,000 EUR	—	– EUR	—	—	—	—	—	—	5,000,000 EUR	—	– EUR	12,000,000 EUR	1,559,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	– EUR	– EUR	– EUR	—	– EUR	—	– EUR	—	—	—	—	973,000,000 EUR	– EUR	—	– EUR	973,000,000 EUR	– EUR	– EUR	—	—	—	– EUR	—	—	—	973,000,000 EUR	– EUR	225,000,000 EUR	– EUR	—	—	—	—	– EUR	225,000,000 EUR	– EUR	– EUR	– EUR	—	– EUR	—	—	—	—	—	—	– EUR	—	– EUR	– EUR	225,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	– EUR	1,000,000 EUR	– EUR	—	– EUR	—	– EUR	—	—	—	—	7,000,000 EUR	4,000,000 EUR	—	– EUR	– EUR	10,000,000 EUR	– EUR	—	—	—	– EUR	—	—	—	– EUR	– EUR	– EUR	– EUR	—	—	—	—	– EUR	– EUR	– EUR	– EUR	– EUR	—	– EUR	—	—	—	—	—	—	– EUR	—	– EUR	– EUR	– EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—