Analysis Of Income And Expense [Abstract]
| Concept |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||||||||
| Revenue | — | — | — | — | — |
12 ,490 .7
GBP
|
–
GBP
|
— | — | — | — | — |
12 ,49 0.7
GBP
|
— | — | — | — | — |
8 , 6 9 7. 2
GBP
|
— | — | — | — |
–
GBP
|
8 , 6 9 7. 2
GBP
|
— |
| Material income and expense [abstract] | ||||||||||||||||||||||||||
| Operating expense | — | — | — | — | — |
1 ,431 .6
GBP
|
2 30. 4
GBP
|
— | — | — | — | — |
1 ,662 .0
GBP
|
— | — | — | — | — |
1 , 1 1 7. 6
GBP
|
— | — | — | — |
2 9 7. 5
GBP
|
8 20. 1
GBP
|
— |
| Expenses by nature [abstract] | ||||||||||||||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||||||||||||
| Impairment loss (reversal of impairment loss) recognised in profit or loss | — | — | — | — | — |
91 .0
GBP
|
–
GBP
|
— | — | — | — | — |
91 .0
GBP
|
— | — | — | — | — |
1 . 1
GBP
|
— | — | — | — |
–
GBP
|
1 . 1
GBP
|
— |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — | — | — | — | — | — | — | — | — | — |
72. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3. 2
GBP
|
— |
| Other comprehensive income, net of tax, hedges of net investments in foreign operations | — | — | — | — | — | — | — | — | — | — | — | — |
43 . 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
9,400,000
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — | — | — |
3 5 7. 8
GBP
|
304,500,000
GBP
|
— | — | — | — | — |
662. 3
GBP
|
— | — | — | — | — |
143 .0
GBP
|
— | — | — | — |
33. 2
GBP
|
109. 8
GBP
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||||
| Comprehensive income |
–
GBP
|
24 5. 2
GBP
|
38,800,000
GBP
|
363,700,000
GBP
|
206 .4
GBP
|
— | — |
–
GBP
|
25,500,000
GBP
|
–
GBP
|
28,700,000
GBP
|
1 82 .8
GBP
|
273. 9
GBP
|
–
GBP
|
–
GBP
|
6. 2
GBP
|
3,1 50.0
GBP
|
–
GBP
|
— |
3 ,41 8 . 0
GBP
|
50,700,000
GBP
|
211 .1
GBP
|
3 , 3 6 7. 3
GBP
|
— |
3 ,41 8 . 0
GBP
|
–
GBP
|
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — | — | — | — | — | — | — |
28,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— |