Statement Of Changes In Equity [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 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 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 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | — | — |
27,272,000,000
GBP
|
—
GBP
|
91,000,000
GBP
|
58,000,000
GBP
|
— | — |
16,166,000,000
GBP
|
— |
11,197,000,000
GBP
|
16,224,000,000
GBP
|
— |
16,729,000,000
GBP
|
9,000,000
GBP
|
9,000,000
GBP
|
27,483,000,000
GBP
|
123,000,000
GBP
|
— |
16,738,000,000
GBP
|
10,960,000,000
GBP
|
9,000,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
92,000,000
GBP
|
—
GBP
|
—
GBP
|
16,615,000,000
GBP
|
27,474,000,000
GBP
|
— |
10,960,000,000
GBP
|
— | — |
123,000,000
GBP
|
—
GBP
|
— |
92,000,000
GBP
|
16,606,000,000
GBP
|
— |
16,457,000,000
GBP
|
— | — | — | — | — |
10,491,000,000
GBP
|
126,000,000
GBP
|
—
GBP
|
26,730,000,000
GBP
|
92,000,000
GBP
|
16,331,000,000
GBP
|
— | — |
37,538,000,000
GBP
|
11,184,000,000
GBP
|
26,480,000,000
GBP
|
26,355,000,000
GBP
|
—
GBP
|
125,000,000
GBP
|
1,000,000
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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
|
— | — | — | — | — | — | — | — | — | — | — |
62,000,000
GBP
|
— |
1,049,000,000
GBP
|
—
GBP
|
— | — |
—
GBP
|
— | — |
—
GBP
|
— |
—
GBP
|
—
GBP
|
59,000,000
GBP
|
1,119,000,000
GBP
|
1,060,000,000
GBP
|
— | — | — | — | — | — |
1,060,000,000
GBP
|
—
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
|
— | — | — | — | — | — | — | — | — | — | — |
7,000,000
GBP
|
— |
6,000,000
GBP
|
—
GBP
|
— | — |
—
GBP
|
— | — |
431,000,000
GBP
|
— |
—
GBP
|
740,000,000
GBP
|
10,000,000
GBP
|
824,000,000
GBP
|
94,000,000
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
|
— | — | — | — | — | — | — | — | — | — | — |
55,000,000
GBP
|
— |
1,055,000,000
GBP
|
—
GBP
|
— | — |
—
GBP
|
— | — |
431,000,000
GBP
|
— |
—
GBP
|
740,000,000
GBP
|
49,000,000
GBP
|
1,943,000,000
GBP
|
1,154,000,000
GBP
|
— | — | — | — | — | — |
1,894,000,000
GBP
|
—
GBP
|
— | — | — | — | — | — | — |
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
11,543,000,000
GBP
|
—
GBP
|
—
GBP
|
22,150,000,000
GBP
|
—
GBP
|
— | — | — | — | — | — |
22,150,000,000
GBP
|
10,607,000,000
GBP
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
—
GBP
|
479,000,000
GBP
|
—
GBP
|
—
GBP
|
— | — | — | — |
479,000,000
GBP
|
17,000,000
GBP
|
— |
496,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
—
GBP
|
102,000,000
GBP
|
—
GBP
|
—
GBP
|
— | — | — | — |
102,000,000
GBP
|
—
GBP
|
— |
102,000,000
GBP
|
— | — |
76,000,000
GBP
|
— | — | — | — | — |
76,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
—
GBP
|
— |
76,000,000
GBP
|
—
GBP
|
— | — |
—
GBP
|
— | — |
—
GBP
|
— |
—
GBP
|
—
GBP
|
—
GBP
|
15,000,000
GBP
|
15,000,000
GBP
|
— | — | — | — | — | — |
15,000,000
GBP
|
—
GBP
|
— | — | — | — | — | — | — |