Profit Or Loss [Abstract]

Bank of Ireland GP - Filing #5617060

Concept	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	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Interest revenue calculated using effective interest method	—	—	2,772,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2,398,000,000 EUR	—
Profit (loss) from operating activities	—	—	1,015,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,214,000,000 EUR	—
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9	—	—	187,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	194,000,000 EUR	—
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	40,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	5,000,000 EUR	—
Profit (loss) before tax	—	—	1,056,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,221,000,000 EUR	—
Tax expense (income)	—	—	159,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	166,000,000 EUR	—
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
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	—	889,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,048,000,000 EUR	—
Profit (loss), attributable to non-controlling interests	—	—	8,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	7,000,000 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	—	—	0.766	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.912	—
Diluted earnings per share [abstract]
Diluted earnings (loss) per share	—	—	0.766	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.912	—