Statement Of Financial Position [Abstract]
| Concept |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
As at 2019-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — |
5,848,000,000
GBP
|
— | — |
4,849,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — | — | — |
3,652,000,000
GBP
|
— | — |
3,308,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — |
114,000,000
GBP
|
— | — |
100,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — |
2,285,000,000
GBP
|
— | — |
2,749,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,323,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — |
36,516,000,000
GBP
|
— | — |
31,953,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — |
723,000,000
GBP
|
— | — |
741,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — |
3,550,000,000
GBP
|
— | — |
3,184,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — |
1,351,000,000
GBP
|
— | — |
1,351,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — | — |
2,174,000,000
GBP
|
— | — |
1,621,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — | — |
7,798,000,000
GBP
|
— | — |
6,897,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — | — |
1,716,000,000
GBP
|
— | — |
1,534,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
3,550,000,000
GBP
|
1,351,000,000
GBP
|
1,716,000,000
GBP
|
3,220,000,000
GBP
|
7,798,000,000
GBP
|
1,046,000,000
GBP
|
5,388,000,000
GBP
|
9,514,000,000
GBP
|
1,838,000,000
GBP
|
723,000,000
GBP
|
8,431,000,000
GBP
|
8,682,000,000
GBP
|
3,202,000,000
GBP
|
1,351,000,000
GBP
|
741,000,000
GBP
|
1,534,000,000
GBP
|
3,184,000,000
GBP
|
1,877,000,000
GBP
|
1,581,000,000
GBP
|
3,435,000,000
GBP
|
5,312,000,000
GBP
|
741,000,000
GBP
|
251,000,000
GBP
|
3,202,000,000
GBP
|
1,351,000,000
GBP
|
1,534,000,000
GBP
|
7,148,000,000
GBP
|
1,581,000,000
GBP
|
5,061,000,000
GBP
|
1,877,000,000
GBP
|
6,897,000,000
GBP
|
251,000,000
GBP
|
251,000,000
GBP
|
251,000,000
GBP
|
2,407,000,000
GBP
|
1,351,000,000
GBP
|
1,668,000,000
GBP
|
6,772,000,000
GBP
|
1,936,000,000
GBP
|
742,000,000
GBP
|
4,343,000,000
GBP
|
8,440,000,000
GBP
|
929,000,000
GBP
|
3,201,000,000
GBP
|
2,026,000,000
GBP
|
10,156,000,000
GBP
|
1,795,000,000
GBP
|
8,361,000,000
GBP
|
5,912,000,000
GBP
|
3,190,000,000
GBP
|
818,000,000
GBP
|
753,000,000
GBP
|
3,886,000,000
GBP
|
1,350,000,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — | — |
2,319,000,000
GBP
|
— | — |
1,945,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — | — | — | — | — | — | — |
61,000,000
GBP
|
— | — |
—
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — | — |
27,002,000,000
GBP
|
— | — |
23,522,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |