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Intangible assets - Goodwill attributed to cash-generating units (Details) - GBP (£) £ in Millions	Jun. 30, 2021	Jun. 30, 2020
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	£ 1,957	£ 1,912
North America
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	609	416
Turkey
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	143	205
Latin America and Caribbean – Mexico
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	126	123
Greater China
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	128	132
India
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	693	770
Other cash-generating units
Disclosure of information for cash-generating units [line items]
Goodwill attributed to cash-generating unit	£ 258	£ 266

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- Definition

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

+ References

No definition available.

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- Definition

The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

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