Profit Or Loss [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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||||||||||||||||
| Profit (loss) [abstract] | ||||||||||||||||||||||
| Revenue | — | — | — |
–
GBP
|
418,000,000
GBP
|
— | — | — | — | — |
418,000,000
GBP
|
— | — | — | — | — | — | — |
412,000,000
GBP
|
432,000,000
GBP
|
20,000,000
GBP
|
— |
| Finance income | — | — | — |
88,000,000
GBP
|
2,000,000
GBP
|
— | — | — | — | — |
90,000,000
GBP
|
— | — | — | — | — | — | — |
67,000,000
GBP
|
–
GBP
|
67,000,000
GBP
|
— |
| Finance costs | — | — | — |
–
GBP
|
62,000,000
GBP
|
— | — | — | — | — |
62,000,000
GBP
|
— | — | — | — | — | — | — |
62,000,000
GBP
|
55,000,000
GBP
|
7,000,000
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — |
559,000,000
GBP
|
92,000,000
GBP
|
— | — | — | — | — |
467,000,000
GBP
|
— | — | — | — | — | — | — |
247,000,000
GBP
|
84,000,000
GBP
|
163,000,000
GBP
|
— |
| Profit (loss) before tax | — | — | — |
1,299,000,000
GBP
|
265,000,000
GBP
|
— | — | — | — | — |
1,034,000,000
GBP
|
— | — | — | — | — | — | — |
963,000,000
GBP
|
249,000,000
GBP
|
71 4
GBP
|
— |
| Tax expense (income) | — | — | — |
4,000,000
GBP
|
1,000,000
GBP
|
— | — | — | — | — |
5,000,000
GBP
|
— | — | — | — | — | — | — |
2,000,000
GBP
|
4,000,000
GBP
|
2,000,000
GBP
|
— |
| Profit (loss) |
–
GBP
|
1,038,000,000
GBP
|
–
GBP
|
1,303,000,000
GBP
|
264,000,000
GBP
|
–
GBP
|
–
GBP
|
1,038,000,000
GBP
|
1,000,000
GBP
|
–
GBP
|
1,039,000,000
GBP
|
963,000,000
GBP
|
2,000,000
GBP
|
–
GBP
|
963,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
965,000,000
GBP
|
253,000,000
GBP
|
71 2
GBP
|
–
GBP
|
| Profit (loss), attributable to [abstract] | ||||||||||||||||||||||
| Profit (loss), attributable to owners of parent | — | — | — |
1,301,000,000
GBP
|
263,000,000
GBP
|
— | — | — | — | — |
1,038,000,000
GBP
|
— | — | — | — | — | — | — |
963,000,000
GBP
|
251,000,000
GBP
|
71 2
GBP
|
— |
| Profit (loss), attributable to non-controlling interests | — | — | — |
2,000,000
GBP
|
1,000,000
GBP
|
— | — | — | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — |
2,000,000
GBP
|
2,000,000
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 | — | — | — | — | — | — | — | — | — | — |
1.120
|
— | — | — | — | — | — | — |
1.038
|
— | — | — |
| Diluted earnings per share [abstract] | ||||||||||||||||||||||
| Diluted earnings (loss) per share | — | — | — | — | — | — | — | — | — | — |
1.120
|
— | — | — | — | — | — | — |
1.035
|
— | — | — |