v3.25.4

Liquidity risk - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts (Details) - GBP (£) £ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | £ (129,687) | £ (121,754)
Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (129,712) | (121,781)
Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | 25 | 27
Within 1 year £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (1,820) | (1,035)
Within 1 year £m | Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (1,823) | (1,038)
Within 1 year £m | Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | 3 | 3
1 to 2 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (1,938) | (1,289)
1 to 2 years £m | Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (1,941) | (1,292)
1 to 2 years £m | Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | 3 | 3
2 to 3 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (2,313) | (1,948)
2 to 3 years £m | Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (2,316) | (1,951)
2 to 3 years £m | Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | 3 | 3
3 to 4 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (2,773) | (2,450)
3 to 4 years £m | Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (2,775) | (2,453)
3 to 4 years £m | Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | 2 | 3
4 to 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (3,145) | (2,990)
4 to 5 years £m | Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (3,147) | (2,992)
4 to 5 years £m | Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | 2 | 2
Over 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (117,698) | (112,042)
Over 5 years £m | Liabilities arising from insurance and participating investment contracts |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | (117,710) | (112,055)
Over 5 years £m | Reinsurance contract liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Liabilities Arising From Insurance and Participating Investment Contracts [Line Items] |  |
Remaining contractual undiscounted cash outflows (inflows) that arise from contracts within scope of IFRS 17 that are liabilities | £ 12 | £ 13

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