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Other investments - Narrative (Details) - GBP (£) £ in Millions	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Disclosure of financial assets [line items]
Loan guaranteed by subsidiary	£ 57	£ 37	£ 40
Customers and third parties
Disclosure of financial assets [line items]
Allowances of loans made to customers and other third parties	121	129	113
Customers and third parties | Loans
Disclosure of financial assets [line items]
Loan guaranteed by subsidiary	6	6	3
Associates | Loans
Disclosure of financial assets [line items]
Loan guaranteed by subsidiary	£ 29	£ 12	£ 7

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- Definition

The amount of deduction from loan balances used to record impairments due to credit losses.

+ References

No definition available.

+ Details

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of non-current investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Non-current assets; Investments other than investments accounted for using equity method]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
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-URIDate 2022-03-24

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