Statement Of Cash Flows [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Interest paid, classified as operating activities |
585,000,000
GBP
|
— |
370,000,000
GBP
|
— | — |
| Interest received, classified as operating activities |
948,000,000
GBP
|
— |
834,000,000
GBP
|
— | — |
| Cash flows from (used in) operating activities |
1,38 5
GBP
|
— |
628,000,000
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Other cash receipts from sales of equity or debt instruments of other entities, classified as investing activities |
1,0 17
GBP
|
— |
1 ,870
GBP
|
— | — |
| Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities |
63 0
GBP
|
— |
816,000,000
GBP
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities |
41,000,000
GBP
|
— |
12,000,000
GBP
|
— | — |
| Purchase of intangible assets, classified as investing activities |
19,000,000
GBP
|
— |
2 6
GBP
|
— | — |
| Cash flows from (used in) investing activities |
327,000,000
GBP
|
— |
1,016,000,000
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from issuing shares |
–
GBP
|
— |
150,000,000
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities |
2 2
GBP
|
— |
23,000,000
GBP
|
— | — |
| Cash flows from (used in) financing activities |
2 2
GBP
|
— |
291,000,000
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
1,080,000,000
GBP
|
— |
1,93 5
GBP
|
— | — |
| Cash and cash equivalents | — |
2,8 11
GBP
|
— |
3,89 1
GBP
|
1,956,000,000
GBP
|