Profit Or Loss [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||
| Profit (loss) [abstract] | ||||||
| Employee benefits expense |
3,109,000,000
GBP
|
— | — |
2,896,000,000
GBP
|
— | — |
| Depreciation and amortisation expense |
877,000,000
GBP
|
— | — |
768,000,000
GBP
|
— | — |
| Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 |
504,000,000
GBP
|
— | — |
341,000,000
GBP
|
— | — |
| Profit (loss) before tax |
4,789,000,000
GBP
|
— | — |
5,114,000,000
GBP
|
— | — |
| Tax expense (income) |
1,280,000,000
GBP
|
— | — |
1,425,000,000
GBP
|
— | — |
| Profit (loss) |
3,509,000,000
GBP
|
— | — |
3,689,000,000
GBP
|
— | — |
| Profit (loss), attributable to [abstract] | ||||||
| Profit (loss), attributable to owners of parent | — | — |
3,510,000,000
GBP
|
— |
3,684,000,000
GBP
|
— |
| Profit (loss), attributable to non-controlling interests |
1,000,000
GBP
|
1,000,000
GBP
|
— |
5,000,000
GBP
|
— |
5,000,000
GBP
|