CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Parenthetical) - GBP (£) £ in Millions, shares in Millions	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY [Abstract]
Tax	£ 0	£ 0	£ 0
Total comprehensive income attributable to owners of the parent	£ 827	£ (586)	£ 2,385
Issue of equity under employee share scheme	709	51	725

The amount of comprehensive income attributable to owners of the parent. [Refer: Comprehensive income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income in relation to exchange differences on the translation of financial statements of foreign operations. [Refer: Other comprehensive income; Reserve of exchange differences on translation]

+ References

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

It represents information about issue of equity under employee share schemes.

+ References

No definition available.

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