Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
3 ,031 . 4
GBP
|
2,02 5. 3
GBP
|
1 ,056 . 8
GBP
|
3,0 82 . 1
GBP
|
50,700,000
GBP
|
–
GBP
|
3 ,031 . 4
GBP
|
–
GBP
|
3,08 2 . 1
GBP
|
–
GBP
|
–
GBP
|
2, 2 76 . 2
GBP
|
4 6.6
GBP
|
1 , 382. 5
GBP
|
–
GBP
|
–
GBP
|
9 40. 3
GBP
|
2, 322.8
GBP
|
–
GBP
|
–
GBP
|
2, 2 76 . 2
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||||||||||
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — | — | — | — | — | — | — | — |
1 24 .7
GBP
|
— | — | — | — | — | — | — | — |
1 2.8
GBP
|
— | — | — |
| Other comprehensive income that will not be reclassified to profit or loss, net of tax | — | — | — | — | — | — | — | — | — | — | — |
123 .0
GBP
|
— | — | — | — | — | — | — | — |
35,000,000
GBP
|
— | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — | — | — | — | — | — | — | — | — |
3. 2
GBP
|
— | — | — | — | — | — | — | — |
43. 3
GBP
|
— | — | — |
| Cash flow hedges [abstract] | ||||||||||||||||||||||||
| Other comprehensive income, net of tax, cash flow hedges | — | — | — | — | — | — | — | — | — | — | — |
29. 7
GBP
|
— | — | — | — | — | — | — | — |
41 . 3
GBP
|
— | — | — |
| Hedges of net investment in foreign operations [abstract] | ||||||||||||||||||||||||
| Other comprehensive income, net of tax, hedges of net investments in foreign operations | — | — | — | — | — | — | — | — | — | — | — |
9,400,000
GBP
|
— | — | — | — | — | — | — | — |
3 7. 3
GBP
|
— | — | — |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — | — | — | — | — | — | — | — | — | — |
2 1 7. 3
GBP
|
— | — | — | — | — | — | — | — |
2 2. 3
GBP
|
— | — | — |
| Other comprehensive income |
–
GBP
|
–
GBP
|
6,200,000
GBP
|
123,000,000
GBP
|
— | — |
340. 3
GBP
|
–
GBP
|
–
GBP
|
340. 3
GBP
|
211 . 1
GBP
|
340. 3
GBP
|
–
GBP
|
16 . 3
GBP
|
57 .3
GBP
|
–
GBP
|
— |
6,000,000
GBP
|
–
GBP
|
— |
57,300,000
GBP
|
–
GBP
|
–
GBP
|
35 .0
GBP
|
| Comprehensive income |
–
GBP
|
–
GBP
|
6,200,000
GBP
|
3,15 4.4
GBP
|
— | — |
3,422 .4
GBP
|
50,700,000
GBP
|
–
GBP
|
3, 371 .7
GBP
|
211 . 1
GBP
|
3,422 .4
GBP
|
–
GBP
|
16 . 3
GBP
|
2 , 2 18 .9
GBP
|
46 .6
GBP
|
— |
6 .0
GBP
|
–
GBP
|
— |
2, 265 . 5
GBP
|
–
GBP
|
–
GBP
|
2,2 41.2
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | — |
3, 371 .7
GBP
|
— | — | — | — | — | — | — | — |
2, 2 18 .9
GBP
|
— | — | — |