Statement Of Comprehensive Income [Abstract]

Bank of Ireland GP - Filing #1995683

Concept	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	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	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	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	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Statement of comprehensive income [abstract]
Profit (loss)	– EUR	1,601,000,000 EUR	– EUR	1,595,000,000 EUR	6,000,000 EUR	1,595,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	858,000,000 EUR	850,000,000 EUR	8,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	850,000,000 EUR	– EUR	– EUR
Other comprehensive income [abstract]
Other comprehensive income	– EUR	36,000,000 EUR	– EUR	36,000,000 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	– 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
Comprehensive income	– EUR	1,565,000,000 EUR	– EUR	1,559,000,000 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	– EUR	– EUR	727,000,000 EUR	941,000,000 EUR	8,000,000 EUR	5,000,000 EUR	12,000,000 EUR	– EUR	– EUR	146,000,000 EUR	719,000,000 EUR	– EUR	93,000,000 EUR
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	1,559,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	719,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	6,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	8,000,000 EUR	—	—	—	—	—	—	—	—	—	—