Carbon Reduction, Percentage Decrease In Overall Weighting Of Environment In Performance Measure

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Number Of Installments

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Award As A Percentage Of Base Salary

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Metric, Measurement Weight, Percentage

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Period

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- Definition

Share Price1

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- Definition

Sustainable Finance And Investment, External Commitment Value

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- Definition

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

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- Definition

The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement.

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Report of Directors Corporate Governance - Long term incentive awards - Narrative (Details) - Long-term incentive awards £ / shares in Units, $ in Billions	12 Months Ended	36 Months Ended	48 Months Ended
	Dec. 31, 2024 GBP (£) shares installment	Dec. 31, 2024 installment	Dec. 31, 2024 USD ($)	Dec. 31, 2023	Feb. 28, 2022 £ / shares	Feb. 28, 2021 £ / shares
Disclosure of transactions between related parties [line items]
Share price on date of grant (in gbp per share) \| £ / shares						£ 4.26
Return on tangible equity
Disclosure of transactions between related parties [line items]
Measures (weighting)	40.00%
2020 LTI Award
Disclosure of transactions between related parties [line items]
Share price on date of grant (in gbp per share) \| £ / shares					£ 5.38
2020 LTI Award \| Minimum
Disclosure of transactions between related parties [line items]
Sustainable finance and investment target \| $			$ 750
2020 LTI Award \| Maximum
Disclosure of transactions between related parties [line items]
Sustainable finance and investment target \| $			$ 1,000
2020 LTI Award \| Sir Noel Quinn
Disclosure of transactions between related parties [line items]
Shares vested (in shares)	737,504
2020 LTI Award \| Georges Elhedery
Disclosure of transactions between related parties [line items]
Shares vested (in shares)	167,991
2020 LTI Award \| Ewen Stevenson
Disclosure of transactions between related parties [line items]
Shares vested (in shares)	191,224
Number of installments \| installment		5
2025 LTI Award
Disclosure of transactions between related parties [line items]
Number of installments \| installment	5
Award as a percentage of base salary	600.00%
Performance period	3 years
Percentage decrease in overall weighting of environment in performance measure	20.00%	20.00%	20.00%	25.00%
2025 LTI Award \| Sir Noel Quinn
Disclosure of transactions between related parties [line items]
Expense from share-based payment transactions with employees \| £	£ 9,000,000
2025 LTI Award \| Georges Elhedery
Disclosure of transactions between related parties [line items]
Expense from share-based payment transactions with employees \| £	£ 5,250,000