Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||
| Increase (decrease) through transactions with owners, equity |
9,000,000
GBP
|
12,000,000
GBP
|
–
GBP
|
12,000,000
GBP
|
–
GBP
|
–
GBP
|
388,000,000
GBP
|
379,000,000
GBP
|
37 9
GBP
|
3,000,000
GBP
|
192,000,000
GBP
|
1,000,000
GBP
|
194,000,000
GBP
|
–
GBP
|
191,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|