Statement Of Comprehensive Income [Abstract]
| Concept |
2023-04-02 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
2022-04-03 to 2023-04-01 |
2022-04-03 to 2023-04-01 |
2022-04-03 to 2023-04-01 |
2022-04-03 to 2023-04-01 |
2022-04-03 to 2023-04-01 |
2022-04-03 to 2023-04-01 |
2022-04-03 to 2023-04-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
2 70
GBP
|
271,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,000,000
GBP
|
270,000,000
GBP
|
–
GBP
|
490,000,000
GBP
|
2,000,000
GBP
|
–
GBP
|
–
GBP
|
492,000,000
GBP
|
490,000,000
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||
| Cash flow hedges [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, cash flow hedges | — | — | — | — | — | — | — |
1,000,000
GBP
|
1,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,000,000
GBP
|
–
GBP
|
| Other comprehensive income | — |
36,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
14,000,000
GBP
|
— |
| Comprehensive income |
27 0
GBP
|
235,000,000
GBP
|
36,000,000
GBP
|
–
GBP
|
–
GBP
|
1,000,000
GBP
|
234,000,000
GBP
|
14,000,000
GBP
|
504,000,000
GBP
|
2,000,000
GBP
|
–
GBP
|
–
GBP
|
506,000,000
GBP
|
490,000,000
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
23 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
504,000,000
GBP
|
— |
| Comprehensive income, attributable to non-controlling interests | — |
1,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
2,000,000
GBP
|
— |