Statement Of Comprehensive Income [Abstract]
| Concept |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||
| Profit (loss) |
3,734,000,000
GBP
|
— |
3,766,000,000
GBP
|
3,734,000,000
GBP
|
32,000,000
GBP
|
3,734,000,000
GBP
|
3,249,000,000
GBP
|
3,338,000,000
GBP
|
— |
3,249,000,000
GBP
|
3,249,000,000
GBP
|
89,000,000
GBP
|
139,000,000
GBP
|
2,799,000,000
GBP
|
2,660,000,000
GBP
|
2,660,000,000
GBP
|
— |
2,660,000,000
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax | — | — |
473,000,000
GBP
|
— | — | — | — |
485,000,000
GBP
|
— | — | — | — | — |
27,000,000
GBP
|
— | — | — | — |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — |
329,000,000
GBP
|
— | — | — | — |
997,000,000
GBP
|
— | — | — | — | — |
838,000,000
GBP
|
— | — | — | — |
| Other comprehensive income |
330,000,000
GBP
|
324,000,000
GBP
|
802,000,000
GBP
|
330,000,000
GBP
|
148,000,000
GBP
|
654,000,000
GBP
|
777,000,000
GBP
|
1,482,000,000
GBP
|
535,000,000
GBP
|
777,000,000
GBP
|
1,312,000,000
GBP
|
170,000,000
GBP
|
174,000,000
GBP
|
865,000,000
GBP
|
39,000,000
GBP
|
691,000,000
GBP
|
652,000,000
GBP
|
39,000,000
GBP
|
| Comprehensive income |
3,404,000,000
GBP
|
324,000,000
GBP
|
2,964,000,000
GBP
|
3,404,000,000
GBP
|
116,000,000
GBP
|
3,080,000,000
GBP
|
4,026,000,000
GBP
|
4,820,000,000
GBP
|
535,000,000
GBP
|
4,026,000,000
GBP
|
4,561,000,000
GBP
|
259,000,000
GBP
|
35,000,000
GBP
|
1,934,000,000
GBP
|
2,621,000,000
GBP
|
1,969,000,000
GBP
|
652,000,000
GBP
|
2,621,000,000
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
3,080,000,000
GBP
|
— | — | — | — |
4,561,000,000
GBP
|
— | — | — | — | — |
1,969,000,000
GBP
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — |
116,000,000
GBP
|
— | — | — | — |
259,000,000
GBP
|
— | — | — | — | — |
35,000,000
GBP
|
— | — | — | — |