UBIDAC significant transactions (Details) € in Billions	Jun. 28, 2021 EUR (€) item	Mar. 31, 2021 EUR (€) item
Allied Irish Banks, p.l.c
Post balance sheet events
Sale of financial assets	€ 4.2
Undrawn exposure	€ 2.8
Approximate number of employees to transfer \| item	280
Estimated balance	€ 4.0
Permanent TSB Group Holdings p.l.c.
Post balance sheet events
Number of branch locations \| item		25
Gross performing loans		€ 7.6

The cash inflow from sales or maturity of financial instruments, classified as investing activities. [Refer: Financial instruments, class [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2020-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_16&doctype=Standard
-URIDate 2020-01-01

Name:	ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration