Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||
| Dividends recognised as distributions to owners of parent | — | — |
1,823,000,000
USD
|
1,823,000,000
USD
|
1,823,000,000
USD
|
872,000,000
USD
|
872,000,000
USD
|
— |
872,000,000
USD
|
— |
1,086,000,000
USD
|
1,086,000,000
USD
|
1,086,000,000
USD
|
— |
| Dividends recognised as distributions to non-controlling interests |
35,000,000
USD
|
— | — |
35,000,000
USD
|
— | — |
5,000,000
USD
|
5,000,000
USD
|
— | — | — | — |
5,000,000
USD
|
5,000,000
USD
|
| Increase (decrease) through transfer between revaluation surplus and retained earnings, equity | — |
1,000,000
USD
|
— | — |
1,000,000
USD
|
— | — | — | — |
1,000,000
USD
|
— |
1,000,000
USD
|
— | — |