Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2022-01-01 to 2022-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
2021-01-01 to 2021-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Increase (decrease) through disposal of subsidiary, equity |
30,000,000
USD
|
-
USD
|
-
USD
|
-
USD
|
30,000,000
USD
|
-
USD
|
-
USD
|
-
USD
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through transactions with owners, equity |
8,059,000,000
USD
|
14,000,000
USD
|
-
USD
|
7,866,000,000
USD
|
58,000,000
USD
|
121,000,000
USD
|
8,001,000,000
USD
|
-
USD
|
41,000,000
USD
|
119,000,000
USD
|
-
USD
|
1,651,000,000
USD
|
1,772,000,000
USD
|
2,000,000
USD
|
-
USD
|
1,813,000,000
USD
|
| Purchase of treasury shares |
1,183,000,000
USD
|
-
USD
|
-
USD
|
1,183,000,000
USD
|
-
USD
|
-
USD
|
1,183,000,000
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
781,000,000
USD
|
781,000,000
USD
|
-
USD
|
-
USD
|
781,000,000
USD
|
| Sale or issue of treasury shares |
17,000,000
USD
|
-
USD
|
-
USD
|
17,000,000
USD
|
-
USD
|
-
USD
|
17,000,000
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
20,000,000
USD
|
20,000,000
USD
|
-
USD
|
-
USD
|
20,000,000
USD
|