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Financial instruments - valuation - Adjustments (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Financial instruments - classification |  |
Funding valuation adjustments | £ 123 | £ 132
Credit valuation adjustments | 190 | 236
Bid - offer | 76 | 86
Product and deal specific | 157 | 103
Total | 546 | 557
Product and deal specific |  |
Net (gains) carried forward | 139 | 78
Net gains deferred | 218 | 119
Net gains recognized in the income statement | 157 | 115
Accumulated changes in fair value | £ 44 | £ 0

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- Definition The accumulated increase (decrease) in the fair value of financial liabilities that is attributable to changes in the credit risk of the liabilities. [Refer: Credit risk [member]; Market risk [member]; Increase (decrease) in fair value of financial liability, attributable to changes in credit risk of liability] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 10 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_10_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 10A -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_10A_a&doctype=Standard -URIDate 2024-03-27 + Details
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- References No definition available. + Details
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- Definition The amount of Bid offer represents the fair value positions are adjusted to bid (long positions) or offer (short positions) levels, by marking individual cash positions directly to bid or offer or by taking bid-offer reserves calculated on a portfolio basis for derivatives exposures. + References No definition available. + Details
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- Definition The amount of Credit valuation adjustments represent an estimate of the adjustment to fair value that a market participant would make to incorporate the counterparty credit risk inherent in derivative exposures. + References No definition available. + Details
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- Definition The amount of financial instrument valuation adjustments in the trading books. Adjustments are made to mid-market valuations to cover bid-offer spread, liquidity and credit risk. + References No definition available. + Details
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- Definition The amount of Funding valuation adjustments represents an estimate of the adjustment to fair value that a market participant would make to incorporate funding costs and benefits that arise in relation to uncollateralised derivative exposures + References No definition available. + Details
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- Definition The gains (losses) on financial assets and liabilities at fair value carried forward upon initial recognition. + References No definition available. + Details
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- Definition The gains (losses) on financial assets and liabilities at fair value deferred upon initial recognition. + References No definition available. + Details
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- Definition The gains (losses) on financial assets and liabilities at fair value through profit or loss that were designated as such upon initial recognition. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of product and deal specific adjustment in financial instruments valuation. + References No definition available. + Details
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