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Equity - Own shares - Narrative (Details) - GBP (£) £ / shares in Units, £ in Millions | 1 Months Ended | 4 Months Ended | 8 Months Ended | 12 Months Ended | 31 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 28, 2022 | Jun. 30, 2022 | Oct. 05, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020 | Feb. 11, 2022 | Sep. 30, 2021 | Jul. 25, 2019 | Jun. 30, 2019
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Share capital |  | £ 723 |  |  | £ 723 | £ 741 | £ 742 |  |  |  |
Number of shares authorised to be repurchased (in shares) |  |  |  |  |  |  |  |  | 233,611,282 |  |
Repurchase of shares percentage of market value per share to be paid upon purchase |  |  |  |  |  |  |  |  | 105.00% |  |
Sale of options |  |  |  |  | 13 |  |  |  |  |  |
Financial liabilities |  | £ 23,551 |  |  | £ 23,551 | £ 20,445 |  |  |  |  |
Par value of shares authorised to be repurchased (in GBP per share) |  |  |  |  |  |  |  |  | £ 0.28935 |  |
Own shares |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  | 219,000,000 |  |  | 219,000,000 | 223,000,000 | 227,000,000 |  |  |  | 232,000,000
Share buyback programme |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  |  | £ 4,500 |
Financial liabilities |  | £ 117 |  |  | £ 117 |  |  |  |  |  |
Share buyback programme | Major ordinary share transactions |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Number of shares purchased - share buyback programme (in shares) | 3,300,000 |  |  |  |  |  |  |  |  |  |
Share buyback programme | Diageo Plc |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Purchase of own shares |  |  |  |  | £ 2,284 | £ 109 | £ 1,282 |  |  |  |
Number of shares purchased - share buyback programme (in shares) |  |  |  |  | 61,000,000 | 3,200,000 | 39,000,000 |  |  |  |
Purchase of own shares percentage of issued ordinary share capital |  |  |  |  | 2.40% | 0.10% | 1.50% |  |  |  |
Weighted average share price per share (in GBP per share) |  |  |  |  | £ 37.09 | £ 34.07 | £ 32.43 |  |  |  |
Transaction costs |  |  |  |  | £ 16 | £ 1 | £ 7 |  |  |  |
Share buyback programme | Own shares |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Purchase of own shares |  | £ 1,400 | £ 1,700 | £ 900 | £ 2,284 | £ 109 | £ 1,282 | £ 2,250 |  |  |
Number of shares purchased - share buyback programme (in shares) |  |  |  |  | 61,000,000 | 3,000,000 | 39,000,000 |  |  |  |
Employee share trusts |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  | 2,000,000 |  |  | 2,000,000 | 2,000,000 | 2,000,000 |  |  |  |
Share capital |  | £ 25 |  |  | £ 25 | £ 47 | £ 51 |  |  |  |
Market value of shares outstanding |  | £ 63 |  |  | £ 63 | £ 74 | £ 57 |  |  |  |

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- Definition The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 + Details
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