Analysis Of Income And Expense [Abstract]
| Concept |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||
| Revenue [abstract] | ||||||||||
| Revenue | — |
2,338,200,000
GBP
|
— | — | — | — | — | — | — |
2,165,100,000
GBP
|
| Material income and expense [abstract] | ||||||||||
| Finance income (cost) | — |
281,500,000
GBP
|
— | — | — | — | — | — | — |
362,600,000
GBP
|
| Operating expense | — |
1,826,400,000
GBP
|
— | — | — | — | — | — | — |
1,656,300,000
GBP
|
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||
| Share of profit (loss) of joint ventures accounted for using equity method | — |
4,100,000
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||
| Comprehensive income |
9,000,000
GBP
|
161,400,000
GBP
|
–
GBP
|
–
GBP
|
152,400,000
GBP
|
57,000,000
GBP
|
1,900,000
GBP
|
–
GBP
|
–
GBP
|
55,100,000
GBP
|