Statement Of Comprehensive Income [Abstract]
| Concept |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2023-03-26 to 2024-03-30 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-27 to 2023-03-25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||
| Profit (loss) |
2 0.0
GBP
|
–
GBP
|
900,000
GBP
|
–
GBP
|
–
GBP
|
19. 1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,300,000
GBP
|
— |
55. 9
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
57 .2
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||||||||||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — | — |
5,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
100 .3
GBP
|
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||||||||||||||||||||||
| Cash flow hedges [abstract] | ||||||||||||||||||||||||||||||||||||
| Gains (losses) on cash flow hedges, before tax | — | — | — | — | — |
1,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1. 0
GBP
|
| Reclassification adjustments on cash flow hedges, before tax | — | — | — | — | — |
600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,700,000
GBP
|
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||||||||||||||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — | — | — | — | — |
1,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
11,800,000
GBP
|
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0. 1
GBP
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||||||||||||||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0. 1
GBP
|
| Other comprehensive income |
4 .1
GBP
|
–
GBP
|
600,000
GBP
|
2,800,000
GBP
|
–
GBP
|
600,000
GBP
|
–
GBP
|
1,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
12,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
7 0.6
GBP
|
12,400,000
GBP
|
600,000
GBP
|
–
GBP
|
5 .0
GBP
|
–
GBP
|
–
GBP
|
8 8 .6
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
76 .2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
5 .0
GBP
|
0. 6
GBP
|
–
GBP
|
83,000,000
GBP
|
| Comprehensive income |
15,900,000
GBP
|
–
GBP
|
1,500,000
GBP
|
2,800,000
GBP
|
–
GBP
|
18,500,000
GBP
|
–
GBP
|
1,300,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,300,000
GBP
|
— |
144,500,000
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
5 .0
GBP
|
600,000
GBP
|
–
GBP
|
140 .2
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
2 0.0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
138,900,000
GBP
|
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
1,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,300,000
GBP
|