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Post employment benefits - Balance sheet analysis of post employment plans (Parenthetical) (Details) - GBP (£) £ in Millions | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
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DPS |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Surplus/Deficit in plan | £ 589 | £ 1,174 | £ 840
GIGIPS |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Surplus/Deficit in plan | 260 | 221 | (79)
Other Schemes |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Surplus/Deficit in plan | £ 111 | £ 158 | £ 178

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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 fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_57_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Details
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