Dividends on ordinary shares (Narrative) (Details) - GBP (£) £ in Millions	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Disclosure of transactions between related parties [line items]
Interim dividend	£ 233
Barclays PLC [member] \| UK Banking Businesses [member] \| Barclays Bank UK PLC [member]
Disclosure of transactions between related parties [line items]
Dividend in specie		£ 14,000

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.

No definition available.

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- Definition

The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of dividends recognised as distributions to owners of the parent. [Refer: Parent [member]]

+ References

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