Taxation - Change in deferred tax assets and liabilities (Details) - GBP (£) £ in Millions	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Reconciliation of changes in deferred tax liability (asset) [abstract]
Beginning balance	£ (1,845)	£ (1,853)
Exchange differences	(153)	173
Recognised in income statement	21	(16)
Reclassification	35	0
Recognised in other comprehensive loss and equity	(207)	(8)
Tax rate change – recognised in income statement	(3)	(78)
Tax rate change – recognised in other comprehensive loss and equity	(20)	(48)
Acquisition of subsidiaries	(31)	(15)
Sale of businesses	(2)
Ending balance	(2,205)	(1,845)
Tax losses
Reconciliation of changes in deferred tax liability (asset) [abstract]
Beginning balance	57	61
Exchange differences	3	(5)
Recognised in income statement	2	0
Reclassification	0	0
Recognised in other comprehensive loss and equity	0	0
Tax rate change – recognised in income statement	1	1
Tax rate change – recognised in other comprehensive loss and equity	0	0
Acquisition of subsidiaries	0	0
Sale of businesses	0
Ending balance	63	57
Other temporary differences
Reconciliation of changes in deferred tax liability (asset) [abstract]
Beginning balance	244	234
Exchange differences	17	(17)
Recognised in income statement	74	29
Reclassification	(7)	(7)
Recognised in other comprehensive loss and equity	20	(2)
Tax rate change – recognised in income statement	0	10
Tax rate change – recognised in other comprehensive loss and equity	2	(4)
Acquisition of subsidiaries	0	1
Sale of businesses	3
Ending balance	353	244
Property, plant and equipment
Reconciliation of changes in deferred tax liability (asset) [abstract]
Beginning balance	(381)	(340)
Exchange differences	(21)	26
Recognised in income statement	(42)	(28)
Reclassification	2	0
Recognised in other comprehensive loss and equity	(20)	0
Tax rate change – recognised in income statement	(1)	(39)
Tax rate change – recognised in other comprehensive loss and equity	0	0
Acquisition of subsidiaries	0	0
Sale of businesses	(5)
Ending balance	(468)	(381)
Intangible assets
Reconciliation of changes in deferred tax liability (asset) [abstract]
Beginning balance	(1,636)	(1,736)
Exchange differences	(155)	176
Recognised in income statement	(3)	(19)
Reclassification	40	7
Recognised in other comprehensive loss and equity	(104)	0
Tax rate change – recognised in income statement	(3)	(48)
Tax rate change – recognised in other comprehensive loss and equity	0	0
Acquisition of subsidiaries	(31)	(16)
Sale of businesses	0
Ending balance	(1,892)	(1,636)
Post employment plan
Reconciliation of changes in deferred tax liability (asset) [abstract]
Beginning balance	(129)	(72)
Exchange differences	3	(7)
Recognised in income statement	(10)	2
Reclassification	0	0
Recognised in other comprehensive loss and equity	(103)	(6)
Tax rate change – recognised in income statement	0	(2)
Tax rate change – recognised in other comprehensive loss and equity	(22)	(44)
Acquisition of subsidiaries	0	0
Sale of businesses	0
Ending balance	£ (261)	£ (129)

Deferred tax asset liability reclassified.

No definition available.

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- Definition

The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets arising from tax rate change, recognised in profit or loss.

+ References

No definition available.

+ Details

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- Definition

The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets arising from tax rate change, recognised in other comprehensive income.

+ References

No definition available.

+ Details

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- Definition

The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph g
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_ii&doctype=Standard
-URIDate 2021-03-24

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- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph g
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_i&doctype=Standard
-URIDate 2021-03-24

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph ab
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-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 90
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_90&doctype=Standard
-URIDate 2021-03-24

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- Definition

The increase (decrease) in deferred tax liability (asset) resulting from business combinations. [Refer: Deferred tax liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81&doctype=Standard
-URIDate 2021-03-24

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- Definition

The decrease in deferred tax liability (asset) resulting from the loss of control of a subsidiary. [Refer: Deferred tax liability (asset)]

+ References

+ Details

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- Definition

The increase (decrease) in deferred tax liability (asset) resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Deferred tax liability (asset)]

+ References

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- References

No definition available.

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