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 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|
| Disclosure of cash flow statement [text block] | — | — | — | — | — | — | — |
| Cash and cash equivalents if different from statement of financial position [abstract] | |||||||
| Cash and cash equivalents if different from statement of financial position |
50,834,000,000
GBP
|
— |
47,682,000,000
GBP
|
— | — |
28,951,000,000
GBP
|
26,264,000,000
GBP
|
| Income taxes paid (refund) [abstract] | |||||||
| Income taxes paid (refund), classified as operating activities | — |
427,000,000
GBP
|
— |
159,000,000
GBP
|
292,000,000
GBP
|
— | — |