Disclosure Of Cash Flow Statement [Text Block]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|
| Disclosure of cash flow statement [text block] | — | — | — | — | — |
| Cash and cash equivalents if different from statement of financial position [abstract] | |||||
| Cash and cash equivalents |
12,485,000,000
GBP
|
— |
16,900,000,000
GBP
|
— | — |
| Cash and cash equivalents if different from statement of financial position |
11,878,000,000
GBP
|
— |
16,182,000,000
GBP
|
— |
19,434,000,000
GBP
|
| Income taxes paid (refund) [abstract] | |||||
| Income taxes paid (refund), classified as operating activities | — |
304,000,000
GBP
|
— |
857,000,000
GBP
|
— |