Statement Of Changes In Equity [Abstract]

Bank of Ireland GP - Filing #5617060

Concept	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 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	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	11,932,000,000 EUR	—	—	—	—	—	50,000,000 EUR	—	—	—	—	67,000,000 EUR	456,000,000 EUR	9,640,000,000 EUR	10,000,000 EUR	1,070,000,000 EUR	—	786,000,000 EUR	10,899,000,000 EUR	17,000,000 EUR	966,000,000 EUR	—	31,000,000 EUR	—	527,000,000 EUR	—	—	20,000,000 EUR	509,000,000 EUR	8,842,000,000 EUR	38,000,000 EUR	—	—	966,000,000 EUR	—	—	11,338,000,000 EUR	—	36,000,000 EUR	129,000,000 EUR	693,000,000 EUR	—	—	—	10,304,000,000 EUR	—	456,000,000 EUR	1,079,000,000 EUR	68,000,000 EUR	—	—	—	7,337,000,000 EUR	68,000,000 EUR	43,000,000 EUR	26,000,000 EUR	8,587,000,000 EUR	1,079,000,000 EUR	966,000,000 EUR	25,000,000 EUR	456,000,000 EUR	877,000,000 EUR	9,621,000,000 EUR	437,000,000 EUR	163,000,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	– EUR	– EUR	897,000,000 EUR	889,000,000 EUR	8,000,000 EUR	—	– EUR	– EUR	– EUR	– EUR	—	—	—	—	—	– EUR	—	—	—	—	889,000,000 EUR	—	– EUR	—	– EUR	7,000,000 EUR	—	—	—	—	– EUR	– EUR	—	– EUR	1,048,000,000 EUR	—	– EUR	—	—	—	– EUR	– EUR	– EUR	—	– EUR	—	—	—	– EUR	1,055,000,000 EUR	1,048,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	– EUR	– EUR	131,000,000 EUR	91,000,000 EUR	– EUR	—	5,000,000 EUR	12,000,000 EUR	– EUR	– EUR	—	—	—	—	—	146,000,000 EUR	—	—	—	—	131,000,000 EUR	—	– EUR	—	93,000,000 EUR	– EUR	—	—	—	—	10,000,000 EUR	– EUR	—	5,000,000 EUR	732,000,000 EUR	—	– EUR	—	—	—	184,000,000 EUR	– EUR	34,000,000 EUR	—	– EUR	—	—	—	– EUR	732,000,000 EUR	597,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	– EUR	– EUR	766,000,000 EUR	980,000,000 EUR	8,000,000 EUR	—	5,000,000 EUR	12,000,000 EUR	– EUR	– EUR	—	—	—	—	—	146,000,000 EUR	—	—	—	—	758,000,000 EUR	—	– EUR	—	93,000,000 EUR	7,000,000 EUR	—	—	—	—	10,000,000 EUR	– EUR	—	5,000,000 EUR	1,780,000,000 EUR	—	– EUR	—	—	—	184,000,000 EUR	– EUR	34,000,000 EUR	—	– EUR	—	—	—	– EUR	1,787,000,000 EUR	1,645,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	– EUR	– EUR	54,000,000 EUR	54,000,000 EUR	– EUR	—	– EUR	– EUR	– EUR	– EUR	—	—	—	—	—	– EUR	—	—	—	—	54,000,000 EUR	—	– EUR	—	– EUR	– EUR	—	—	—	—	– EUR	– EUR	—	– EUR	– EUR	—	– EUR	—	—	—	– EUR	– EUR	– EUR	—	– EUR	—	—	—	– EUR	– EUR	– EUR	—	—	—	—	—	—	—	—	—	—	—	—	—