Statement Of Changes In Equity [Abstract]
| 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 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 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 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||
| Equity |
2,852,000,000
USD
|
— | — | — | — |
56,000,000
USD
|
2,137,000,000
USD
|
8,000,000
USD
|
763,000,000
USD
|
— |
1,792,000,000
USD
|
3,000,000
USD
|
763,000,000
USD
|
— |
2,566,000,000
USD
|
— |
8,000,000
USD
|
— | — | — |
1,788,000,000
USD
|
763,000,000
USD
|
8,000,000
USD
|
18,000,000
USD
|
2,577,000,000
USD
|
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||
| Profit (loss) | — |
–
USD
|
–
USD
|
583,000,000
USD
|
583,000,000
USD
|
— | — | — | — |
–
USD
|
— | — | — |
–
USD
|
— |
–
USD
|
— |
–
USD
|
167,000,000
USD
|
167,000,000
USD
|
— | — | — | — | — |
| Other comprehensive income | — |
–
USD
|
59,000,000
USD
|
59,000,000
USD
|
–
USD
|
— | — | — | — |
–
USD
|
— | — | — |
15,000,000
USD
|
— |
–
USD
|
— |
–
USD
|
15,000,000
USD
|
–
USD
|
— | — | — | — | — |
| Comprehensive income | — |
0
USD
|
59,000,000
USD
|
524,000,000
USD
|
583,000,000
USD
|
— | — | — | — |
0
USD
|
— | — | — |
15,000,000
USD
|
— |
0
USD
|
— |
0
USD
|
152,000,000
USD
|
167,000,000
USD
|
— | — | — | — | — |
| Dividends recognised as distributions to owners | — |
–
USD
|
–
USD
|
66,000,000
USD
|
66,000,000
USD
|
— | — | — | — |
–
USD
|
— | — | — |
–
USD
|
— |
–
USD
|
— |
–
USD
|
78,000,000
USD
|
78,000,000
USD
|
— | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
–
USD
|
–
USD
|
6,000,000
USD
|
6,000,000
USD
|
— | — | — | — |
–
USD
|
— | — | — |
–
USD
|
— |
–
USD
|
— |
–
USD
|
2,000,000
USD
|
2,000,000
USD
|
— | — | — | — | — |