v3.25.4

Subordinated liabilities - Schedule of Movement in Subordinated Liabilities (Details) € in Millions, £ in Millions, $ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 GBP (£) | Dec. 31, 2024 GBP (£) | Dec. 31, 2023 GBP (£) | Dec. 31, 2025 EUR (€) | Dec. 31, 2025 AUD ($) | Dec. 31, 2025 USD ($)
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Contract/ notional amount £m | £ 16,574,438 | £ 14,304,441 |  |  |  |
At 1 January | 10,089 | 10,253 |  |  |  |
Proceeds from issue of subordinated liabilities | 1,757 | 812 | £ 1,417 |  |  |
Repurchases and redemptions during the year | (1,928) | (819) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 1,757 | 812 | 1,417 |  |  |
Repurchases and redemptions during the year | (1,928) | (819) |  |  |  |
Foreign exchange movements | (280) | (25) |  |  |  |
Other movements (cash and non-cash) | 253 | (132) |  |  |  |
At 31 December | 9,894 | 10,089 | 10,253 |  |  |
Repayment of subordinated liabilities | (1,928) | (819) | (1,745) |  |  |
Hedge accounting movements and cash interest payments | 618 |  |  |  |  |
Interest paid, classified as financing activities | 806 | 622 | 623 |  |  |
Interest expense and hedging valuation adjustments on subordinated liabilities | 707 | 738 | 712 |  |  |
Gross carrying amount |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 1,760 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | £ 1,760 |  |  |  |  |
4.375% Fixed Rate Reset Dated Subordinated Notes 2034 (€500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.375% |  |  | 4.375% | 4.375% | 4.375%
Contract/ notional amount £m | € |  |  |  | € 500 |  |
Proceeds from issue of subordinated liabilities |  | 427 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 427 |  |  |  |
5.788% Fixed-to-Floating Rate Dated Subordinated Notes 2034 (A$250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 5.788% |  |  | 5.788% | 5.788% | 5.788%
Contract/ notional amount £m | $ |  |  |  |  | $ 250 |
Proceeds from issue of subordinated liabilities |  | 128 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 128 |  |  |  |
Floating Rate Dated Subordinated Notes 2034 (A$500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Contract/ notional amount £m | $ |  |  |  |  | $ 500 |
Proceeds from issue of subordinated liabilities |  | 257 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | £ 257 |  |  |  |
6.475% Non-cumulative Preference Shares callable 2024 (£186 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 6.475% | 6.475% |  | 6.475% | 6.475% | 6.475%
Contract/ notional amount £m | £ 186 |  |  |  |  |
Repurchases and redemptions during the year |  | £ (47) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | (47) |  |  |  |
4.5% Dated Subordinated Notes 2024 ($1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.50% |  |  | 4.50% | 4.50% | 4.50%
Contract/ notional amount £m | $ |  |  |  |  |  | $ 1,000.0
Repurchases and redemptions during the year |  | (772) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | (772) |  |  |  |
4.00% Fixed Rate Reset Dated Subordinated Notes 2035 (€1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.00% |  |  | 4.00% | 4.00% | 4.00%
Contract/ notional amount £m | € |  |  |  | € 1,000 |  |
Proceeds from issue of subordinated liabilities | £ 842 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | £ 842 |  |  |  |  |
6.068% Fixed-to-Floating Rate Dated Subordinated Notes 2036 ($1,250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 6.068% |  |  | 6.068% | 6.068% | 6.068%
Contract/ notional amount £m | $ |  |  |  |  |  | $ 1,250.0
Proceeds from issue of subordinated liabilities | £ 918 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | £ 918 |  |  |  |  |
4.50% Fixed Rate Step-up Subordinated Notes 2030 (€441 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.50% |  |  | 4.50% | 4.50% | 4.50%
Contract/ notional amount £m | € |  |  |  | € 441 |  |
Repurchases and redemptions during the year | £ (371) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | £ (371) |  |  |  |  |
4.50% Fixed Rate Step-up Subordinated Notes 2030 (€309 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.50% |  |  | 4.50% | 4.50% | 4.50%
Contract/ notional amount £m | € |  |  |  | € 309 |  |
Repurchases and redemptions during the year | £ (260) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | £ (260) |  |  |  |  |
7.625% Dated Subordinated Notes 2025 (£273 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 7.625% |  |  | 7.625% | 7.625% | 7.625%
Contract/ notional amount £m | £ 273 |  |  |  |  |
Repurchases and redemptions during the year | (273) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | £ (273) |  |  |  |  |
4.582% Fixed Rate Dated Subordinated Notes 2025 ($1,328 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.582% |  |  | 4.582% | 4.582% | 4.582%
Contract/ notional amount £m | $ |  |  |  |  |  | $ 1,328.0
Repurchases and redemptions during the year | £ (996) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | £ (996) |  |  |  |  |
4.582% Fixed Rate Dated Subordinated Notes 2025 ($25.6 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 4.582% |  |  | 4.582% | 4.582% | 4.582%
Contract/ notional amount £m | $ |  |  |  |  |  | $ 25.6
Repurchases and redemptions during the year | £ (19) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | £ (19) |  |  |  |  |
5.75% Undated Step-up Subordinated Notes callable 2025 (£9 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Borrowings, interest rate (in percent) | 5.75% |  |  | 5.75% | 5.75% | 5.75%
Contract/ notional amount £m | £ 9 |  |  |  |  |
Repurchases and redemptions during the year | (9) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (9) |  |  |  |  |
Preference shares £m |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
At 1 January | 413 | 466 |  |  |  |
Proceeds from issue of subordinated liabilities | 0 | 0 |  |  |  |
Repurchases and redemptions during the year | 0 | (47) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 | 0 |  |  |  |
Repurchases and redemptions during the year | 0 | (47) |  |  |  |
Foreign exchange movements | (3) | (1) |  |  |  |
Other movements (cash and non-cash) | (3) | (5) |  |  |  |
At 31 December | 407 | 413 | 466 |  |  |
Preference shares £m | 4.375% Fixed Rate Reset Dated Subordinated Notes 2034 (€500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Preference shares £m | 5.788% Fixed-to-Floating Rate Dated Subordinated Notes 2034 (A$250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Preference shares £m | Floating Rate Dated Subordinated Notes 2034 (A$500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Preference shares £m | 6.475% Non-cumulative Preference Shares callable 2024 (£186 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year |  | (47) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | (47) |  |  |  |
Preference shares £m | 4.5% Dated Subordinated Notes 2024 ($1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Preference shares £m | 4.00% Fixed Rate Reset Dated Subordinated Notes 2035 (€1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Preference shares £m | 6.068% Fixed-to-Floating Rate Dated Subordinated Notes 2036 ($1,250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Preference shares £m | 4.50% Fixed Rate Step-up Subordinated Notes 2030 (€441 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Preference shares £m | 4.50% Fixed Rate Step-up Subordinated Notes 2030 (€309 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Preference shares £m | 7.625% Dated Subordinated Notes 2025 (£273 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Preference shares £m | 4.582% Fixed Rate Dated Subordinated Notes 2025 ($1,328 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Preference shares £m | 4.582% Fixed Rate Dated Subordinated Notes 2025 ($25.6 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Preference shares £m | 5.75% Undated Step-up Subordinated Notes callable 2025 (£9 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Undated £m |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
At 1 January | 145 | 144 |  |  |  |
Proceeds from issue of subordinated liabilities | 0 | 0 |  |  |  |
Repurchases and redemptions during the year | (9) | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 | 0 |  |  |  |
Repurchases and redemptions during the year | (9) | 0 |  |  |  |
Foreign exchange movements | 0 | 0 |  |  |  |
Other movements (cash and non-cash) | 0 | 1 |  |  |  |
At 31 December | 136 | 145 | 144 |  |  |
Undated £m | 4.375% Fixed Rate Reset Dated Subordinated Notes 2034 (€500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Undated £m | 5.788% Fixed-to-Floating Rate Dated Subordinated Notes 2034 (A$250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Undated £m | Floating Rate Dated Subordinated Notes 2034 (A$500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 0 |  |  |  |
Undated £m | 6.475% Non-cumulative Preference Shares callable 2024 (£186 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Undated £m | 4.5% Dated Subordinated Notes 2024 ($1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Undated £m | 4.00% Fixed Rate Reset Dated Subordinated Notes 2035 (€1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Undated £m | 6.068% Fixed-to-Floating Rate Dated Subordinated Notes 2036 ($1,250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 0 |  |  |  |  |
Undated £m | 4.50% Fixed Rate Step-up Subordinated Notes 2030 (€441 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Undated £m | 4.50% Fixed Rate Step-up Subordinated Notes 2030 (€309 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Undated £m | 7.625% Dated Subordinated Notes 2025 (£273 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Undated £m | 4.582% Fixed Rate Dated Subordinated Notes 2025 ($1,328 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Undated £m | 4.582% Fixed Rate Dated Subordinated Notes 2025 ($25.6 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Undated £m | 5.75% Undated Step-up Subordinated Notes callable 2025 (£9 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | (9) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (9) |  |  |  |  |
Dated £m |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
At 1 January | 9,531 | 9,643 |  |  |  |
Proceeds from issue of subordinated liabilities | 1,760 | 812 |  |  |  |
Repurchases and redemptions during the year | (1,919) | (772) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 1,760 | 812 |  |  |  |
Repurchases and redemptions during the year | (1,919) | (772) |  |  |  |
Foreign exchange movements | (277) | (24) |  |  |  |
Other movements (cash and non-cash) | 256 | (128) |  |  |  |
At 31 December | 9,351 | 9,531 | £ 9,643 |  |  |
Dated £m | 4.375% Fixed Rate Reset Dated Subordinated Notes 2034 (€500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 427 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 427 |  |  |  |
Dated £m | 5.788% Fixed-to-Floating Rate Dated Subordinated Notes 2034 (A$250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 128 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 128 |  |  |  |
Dated £m | Floating Rate Dated Subordinated Notes 2034 (A$500 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 257 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities |  | 257 |  |  |  |
Dated £m | 6.475% Non-cumulative Preference Shares callable 2024 (£186 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | 0 |  |  |  |
Dated £m | 4.5% Dated Subordinated Notes 2024 ($1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year |  | (772) |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year |  | £ (772) |  |  |  |
Dated £m | 4.00% Fixed Rate Reset Dated Subordinated Notes 2035 (€1,000 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 842 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 842 |  |  |  |  |
Dated £m | 6.068% Fixed-to-Floating Rate Dated Subordinated Notes 2036 ($1,250 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 918 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Proceeds from issue of subordinated liabilities | 918 |  |  |  |  |
Dated £m | 4.50% Fixed Rate Step-up Subordinated Notes 2030 (€441 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | (371) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (371) |  |  |  |  |
Dated £m | 4.50% Fixed Rate Step-up Subordinated Notes 2030 (€309 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | (260) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (260) |  |  |  |  |
Dated £m | 7.625% Dated Subordinated Notes 2025 (£273 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | (273) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (273) |  |  |  |  |
Dated £m | 4.582% Fixed Rate Dated Subordinated Notes 2025 ($1,328 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | (996) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (996) |  |  |  |  |
Dated £m | 4.582% Fixed Rate Dated Subordinated Notes 2025 ($25.6 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | (19) |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | (19) |  |  |  |  |
Dated £m | 5.75% Undated Step-up Subordinated Notes callable 2025 (£9 million) |  |  |  |  |  |
SUBORDINATED LIABILITIES (Details) - Schedule of Movement in Subordinated Liabilities [Line Items] |  |  |  |  |  |
Repurchases and redemptions during the year | 0 |  |  |  |  |
Repurchases and redemptions during the year: |  |  |  |  |  |
Repurchases and redemptions during the year | £ 0 |  |  |  |  |

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