Statement Of Changes In Equity [Abstract]
| Concept |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Dividends recognised as distributions to owners of parent |
118,500,000
GBP
|
118,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
118,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
118 .3
GBP
|
–
GBP
|
–
GBP
|
118,300,000
GBP
|
118,300,000
GBP
|
| Dividends recognised as distributions to non-controlling interests |
3,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
3,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2 .9
GBP
|
–
GBP
|
2,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Increase (decrease) through transactions with owners, equity |
132,000,000
GBP
|
128,500,000
GBP
|
–
GBP
|
–
GBP
|
3,500,000
GBP
|
–
GBP
|
128,500,000
GBP
|
–
GBP
|
–
GBP
|
2,100,000
GBP
|
–
GBP
|
114,400,000
GBP
|
–
GBP
|
–
GBP
|
112,300,000
GBP
|
112 .3
GBP
|
| Purchase of treasury shares |
34,500,000
GBP
|
34,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
34,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
23,300,000
GBP
|
–
GBP
|
–
GBP
|
23 .3
GBP
|
23,300,000
GBP
|