Statement Of Changes In Equity [Abstract]
| Concept |
As at 2023-06-25 |
As at 2023-06-25 |
As at 2023-06-25 |
As at 2023-06-25 |
As at 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
As at 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
2022-06-27 to 2023-06-25 |
As at 2023-06-25 |
As at 2023-06-25 |
As at 2023-06-25 |
2022-06-27 to 2023-06-25 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
As at 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
2021-06-28 to 2022-06-26 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
As at 2021-06-27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Equity |
6,600,000
GBP
|
10,100,000
GBP
|
184,000,000
GBP
|
4,900,000
GBP
|
359,600,000
GBP
|
— | — |
24,100,000
GBP
|
— | — | — | — | — | — | — | — |
237,100,000
GBP
|
18,600,000
GBP
|
40,400,000
GBP
|
— |
4,900,000
GBP
|
357,800,000
GBP
|
17,500,000
GBP
|
6,900,000
GBP
|
25,900,000
GBP
|
18,600,000
GBP
|
40,400,000
GBP
|
268,900,000
GBP
|
179,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
40,400,000
GBP
|
25,900,000
GBP
|
8,000,000
GBP
|
357,800,000
GBP
|
149,300,000
GBP
|
200,000
GBP
|
700,000
GBP
|
18,600,000
GBP
|
284,500,000
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — |
–
GBP
|
–
GBP
|
— |
26,200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
22,300,000
GBP
|
26,200,000
GBP
|
3,900,000
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
31,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
43,100,000
GBP
|
31,400,000
GBP
|
11,700,000
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — | — | — |
22,400,000
GBP
|
–
GBP
|
— |
5,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
16,500,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
6,400,000
GBP
|
25,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
19,100,000
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income | — | — | — | — | — |
22,400,000
GBP
|
–
GBP
|
— |
32,100,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
9,700,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
25,000,000
GBP
|
25,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
50,500,000
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — | — | — |
–
GBP
|
–
GBP
|
— |
12,100,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
12,100,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
53,800,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
53,800,000
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |