Profit Or Loss [Abstract]
| Concept |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||||||||||||||||
| Profit (loss) [abstract] | ||||||||||||||||||||||
| Revenue | — |
–
GBP
|
7,241,000,000
GBP
|
— | — | — | — | — | — | — |
7,241,000,000
GBP
|
— | — | — |
–
GBP
|
5,976,000,000
GBP
|
5,976,000,000
GBP
|
— | — | — | — | — |
| Profit (loss) from operating activities | — |
35,000,000
GBP
|
478,000,000
GBP
|
— | — | — | — | — | — | — |
443,000,000
GBP
|
— | — | — |
49,000,000
GBP
|
360,000,000
GBP
|
311,000,000
GBP
|
— | — | — | — | — |
| Finance income | — |
–
GBP
|
1,000,000
GBP
|
— | — | — | — | — | — | — |
1,000,000
GBP
|
— | — | — |
–
GBP
|
1,000,000
GBP
|
1,000,000
GBP
|
— | — | — | — | — |
| Finance costs | — |
2,000,000
GBP
|
68,000,000
GBP
|
— | — | — | — | — | — | — |
70,000,000
GBP
|
— | — | — |
7,000,000
GBP
|
76,000,000
GBP
|
83,000,000
GBP
|
— | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — |
–
GBP
|
7,000,000
GBP
|
— | — | — | — | — | — | — |
7,000,000
GBP
|
— | — | — |
–
GBP
|
5,000,000
GBP
|
5,000,000
GBP
|
— | — | — | — | — |
| Profit (loss) before tax | — |
37,000,000
GBP
|
415,000,000
GBP
|
— | — | — | — | — | — | — |
3 78
GBP
|
— | — | — |
56,000,000
GBP
|
287,000,000
GBP
|
231,000,000
GBP
|
— | — | — | — | — |
| Tax expense (income) | — |
2,000,000
GBP
|
100,000,000
GBP
|
— | — | — | — | — | — | — |
98,000,000
GBP
|
— | — | — |
16,000,000
GBP
|
65,000,000
GBP
|
49,000,000
GBP
|
— | — | — | — | — |
| Profit (loss) from continuing operations | — |
3 5
GBP
|
315,000,000
GBP
|
— | — | — | — | — | — | — |
28 0
GBP
|
— | — | — |
4 0
GBP
|
222,000,000
GBP
|
182,000,000
GBP
|
— | — | — | — | — |
| Profit (loss) from discontinued operations | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — |
12,000,000
GBP
|
–
GBP
|
12,000,000
GBP
|
— | — | — | — | — |
| Profit (loss) |
–
GBP
|
35,000,000
GBP
|
315,000,000
GBP
|
–
GBP
|
280,000,000
GBP
|
280,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
280,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
28,000,000
GBP
|
222,000,000
GBP
|
194,000,000
GBP
|
194,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
194,000,000
GBP
|
| Profit (loss), attributable to [abstract] | ||||||||||||||||||||||
| Profit (loss), attributable to owners of parent | — |
35,000,000
GBP
|
315,000,000
GBP
|
— | — | — | — | — | — | — |
280,000,000
GBP
|
— | — | — |
28,000,000
GBP
|
222,000,000
GBP
|
1 94
GBP
|
— | — | — | — | — |
| Profit (loss), attributable to non-controlling interests | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — |
| Earnings per share [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Earnings per share [abstract] | ||||||||||||||||||||||
| Earnings per share [line items] | ||||||||||||||||||||||
| Basic earnings per share [abstract] | ||||||||||||||||||||||
| Basic earnings (loss) per share from continuing operations | — | — | — | — | — | — | — | — | — | — |
0.204
|
— | — | — | — | — |
0.133
|
— | — | — | — | — |
| Basic earnings (loss) per share | — | — | — | — | — | — | — | — | — | — |
0.204
|
— | — | — | — | — |
0.142
|
— | — | — | — | — |
| Diluted earnings per share [abstract] | ||||||||||||||||||||||
| Diluted earnings (loss) per share from continuing operations | — | — | — | — | — | — | — | — | — | — |
0.203
|
— | — | — | — | — |
0.132
|
— | — | — | — | — |
| Diluted earnings (loss) per share | — | — | — | — | — | — | — | — | — | — |
0.203
|
— | — | — | — | — |
0.141
|
— | — | — | — | — |