Profit Or Loss [Abstract]

Bank of Ireland GP - Filing #5582790

Concept	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	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	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	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	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
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Interest revenue calculated using effective interest method	—	—	—	—	—	—	—	—	5,792,000,000 EUR	—	—	—	—	5,413,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Insurance revenue	—	—	—	—	—	—	—	—	536,000,000 EUR	—	—	—	—	518,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Insurance service expenses from insurance contracts issued	—	—	—	—	—	—	—	—	476,000,000 EUR	—	—	—	—	428,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Income (expenses) from reinsurance contracts held, other than finance income (expenses)	—	—	—	—	—	—	—	—	25,000,000 EUR	—	—	—	—	39,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) from operating activities	—	—	—	—	—	—	—	—	1,814,000,000 EUR	—	—	—	—	1,921,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9	—	—	—	—	—	—	—	—	107,000,000 EUR	—	—	—	—	425,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Insurance finance income (expenses) from insurance contracts issued recognised in profit or loss	—	—	—	—	—	—	—	—	1,536,000,000 EUR	—	—	—	—	1,182,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Finance income (expenses) from reinsurance contracts held recognised in profit or loss	—	—	—	—	—	—	—	—	36,000,000 EUR	—	—	—	—	94,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	—	—	—	—	—	—	34,000,000 EUR	—	—	—	—	25,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) before tax	—	—	—	—	—	—	—	—	1,855,000,000 EUR	—	—	—	—	1,938,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Tax expense (income)	—	—	—	—	—	—	—	—	324,000,000 EUR	—	—	—	—	337,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
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	1,601,000,000 EUR	– EUR	– EUR	6,000,000 EUR	1,595,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	1,595,000,000 EUR
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	—	—	—	—	—	—	—	1,531,000,000 EUR	—	—	—	—	1,595,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Profit (loss), attributable to non-controlling interests	—	—	—	—	—	—	—	—	– EUR	—	—	—	—	6,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	—	—	—	—	—	—	—	—	1.419	—	—	—	—	1.401	—	—	—	—	—	—	—	—	—	—	—	—
Diluted earnings per share [abstract]
Diluted earnings (loss) per share	—	—	—	—	—	—	—	—	1.419	—	—	—	—	1.401	—	—	—	—	—	—	—	—	—	—	—	—