Analysis Of Income And Expense [Abstract]
| Concept |
2024-03-31 to 2025-03-29 |
2024-03-31 to 2025-03-29 |
2024-03-31 to 2025-03-29 |
2024-03-31 to 2025-03-29 |
2024-03-31 to 2025-03-29 |
2024-03-31 to 2025-03-29 |
2024-03-31 to 2025-03-29 |
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 |
2023-04-01 to 2024-03-30 |
2023-04-02 to 2024-03-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | |||||||||||||||
| Revenue [abstract] | |||||||||||||||
| Revenue |
2,461,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2,968,000,000
GBP
|
— |
| Material income and expense [abstract] | |||||||||||||||
| Finance income (cost) |
63,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
35,000,000
GBP
|
— |
| Other operating income (expense) |
1,541,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,591,000,000
GBP
|
— |
| Miscellaneous other operating income |
23,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
13,000,000
GBP
|
— |
| Operating expense |
1,564,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,604,000,000
GBP
|
— |
| Miscellaneous other comprehensive income [abstract] | |||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | |||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations |
25,000,000
GBP
|
–
GBP
|
25,000,000
GBP
|
–
GBP
|
–
GBP
|
25,000,000
GBP
|
–
GBP
|
–
GBP
|
34,000,000
GBP
|
–
GBP
|
–
GBP
|
34,000,000
GBP
|
34,000,000
GBP
|
— |
–
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | |||||||||||||||
| Comprehensive income |
99,000,000
GBP
|
–
GBP
|
24,000,000
GBP
|
–
GBP
|
75,000,000
GBP
|
99,000,000
GBP
|
–
GBP
|
270,000,000
GBP
|
235,000,000
GBP
|
–
GBP
|
–
GBP
|
36,000,000
GBP
|
234,000,000
GBP
|
— |
1,000,000
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | |||||||||||||||
| Comprehensive income, attributable to owners of parent |
99,000,000
GBP
|
— | — | — | — | — | — | — |
234,000,000
GBP
|
— | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | |||||||||||||||
| Comprehensive income, attributable to non-controlling interests |
–
GBP
|
— | — | — | — | — | — | — |
1,000,000
GBP
|
— | — | — | — | — | — |