Disclosure Of Entity's Operating Segments [Text Block]
| Concept |
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 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of entity's operating segments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [abstract] | ||||||||||||||||||||||||||
| Disclosure of operating segments [line items] | ||||||||||||||||||||||||||
| Revenue | — | — | — |
10,858,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
9,545,000,000
GBP
|
— |
9,892,000,000
GBP
|
— | — | — | — | — | — | — |
| Tax expense (income) | — | — | — |
499,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
197,000,000
GBP
|
— |
410,000,000
GBP
|
— | — | — | — | — | — | — |
| Profit (loss) before tax | — | — | — |
1,618,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,636,000,000
GBP
|
— |
1,591,000,000
GBP
|
— | — | — | — | — | — | — |
| Profit (loss) | — |
–
GBP
|
–
GBP
|
1,119,000,000
GBP
|
1,060,000,000
GBP
|
59,000,000
GBP
|
1,060,000,000
GBP
|
–
GBP
|
–
GBP
|
49,000,000
GBP
|
–
GBP
|
1,390,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
1,439,000,000
GBP
|
1,390,000,000
GBP
|
1,181,000,000
GBP
|
1,145,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
36,000,000
GBP
|
–
GBP
|
1,145,000,000
GBP
|
| Assets |
34,815,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
34,451,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
18,358,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
7,971,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) operating activities | — | — | — |
2,063,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,356,000,000
GBP
|
— |
1,407,000,000
GBP
|
— | — | — | — | — | — | — |
| Cash flows from (used in) investing activities | — | — | — |
8,784,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
33,000,000
GBP
|
— |
1,030,000,000
GBP
|
— | — | — | — | — | — | — |
| Cash flows from (used in) financing activities | — | — | — |
6,911,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,236,000,000
GBP
|
— |
2,437,000,000
GBP
|
— | — | — | — | — | — | — |
| Disclosure of products and services [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of products and services [abstract] | ||||||||||||||||||||||||||
| Disclosure of products and services [line items] | ||||||||||||||||||||||||||
| Disclosure of geographical areas [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of geographical areas [abstract] | ||||||||||||||||||||||||||
| Disclosure of geographical areas [line items] | ||||||||||||||||||||||||||
| Disclosure of major customers [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of major customers [abstract] | ||||||||||||||||||||||||||
| Disclosure of major customers [line items] |