Statement Of Comprehensive Income [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | |||||||||||||||||||||
| Profit (loss) |
—
GBP
|
1,442,000,000
GBP
|
—
GBP
|
—
GBP
|
1,442,000,000
GBP
|
33,000,000
GBP
|
1,475,000,000
GBP
|
1,111,000,000
GBP
|
1,049,000,000
GBP
|
—
GBP
|
62,000,000
GBP
|
1,049,000,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
1,119,000,000
GBP
|
1,060,000,000
GBP
|
59,000,000
GBP
|
1,060,000,000
GBP
|
—
GBP
|
| Other comprehensive income [abstract] | |||||||||||||||||||||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax | — | — | — | — | — | — |
12,000,000
GBP
|
6,000,000
GBP
|
— | — | — | — | — | — | — | — |
94,000,000
GBP
|
— | — | — | — |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — | — | — | — | — |
160,000,000
GBP
|
438,000,000
GBP
|
— | — | — | — | — | — | — | — |
730,000,000
GBP
|
— | — | — | — |
| Other comprehensive income |
158,000,000
GBP
|
146,000,000
GBP
|
—
GBP
|
—
GBP
|
12,000,000
GBP
|
2,000,000
GBP
|
148,000,000
GBP
|
432,000,000
GBP
|
425,000,000
GBP
|
431,000,000
GBP
|
7,000,000
GBP
|
6,000,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
740,000,000
GBP
|
824,000,000
GBP
|
94,000,000
GBP
|
10,000,000
GBP
|
834,000,000
GBP
|
—
GBP
|
| Comprehensive income |
158,000,000
GBP
|
1,296,000,000
GBP
|
—
GBP
|
—
GBP
|
1,454,000,000
GBP
|
31,000,000
GBP
|
1,327,000,000
GBP
|
679,000,000
GBP
|
624,000,000
GBP
|
431,000,000
GBP
|
55,000,000
GBP
|
1,055,000,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
740,000,000
GBP
|
1,943,000,000
GBP
|
1,154,000,000
GBP
|
49,000,000
GBP
|
1,894,000,000
GBP
|
—
GBP
|
| Comprehensive income attributable to [abstract] | |||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — |
1,296,000,000
GBP
|
624,000,000
GBP
|
— | — | — | — | — | — | — | — |
1,894,000,000
GBP
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
31,000,000
GBP
|
55,000,000
GBP
|
— | — | — | — | — | — | — | — |
49,000,000
GBP
|
— | — | — | — |