Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 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 |
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 | — | — | — |
1,699,000,000
USD
|
— | — | — |
1,688,000,000
USD
|
80,000,000
USD
|
— |
15,000,000
USD
|
3,590,000,000
USD
|
225,000,000
USD
|
46,000,000
USD
|
41,000,000
USD
|
— | — | — |
178,000,000
USD
|
— |
3,477,000,000
USD
|
— |
1,651,000,000
USD
|
— | — |
41,000,000
USD
|
51,000,000
USD
|
9,000,000
USD
|
1,688,000,000
USD
|
61,000,000
USD
|
— | — |
3,292,000,000
USD
|
4,000,000
USD
|
1,688,000,000
USD
|
53,000,000
USD
|
60,000,000
USD
|
148,000,000
USD
|
44,000,000
USD
|
1,497,000,000
USD
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Other comprehensive income |
–
USD
|
1,000,000
USD
|
–
USD
|
— |
–
USD
|
–
USD
|
4,000,000
USD
|
— | — |
3,000,000
USD
|
— | — | — | — | — |
–
USD
|
–
USD
|
–
USD
|
— |
1,000,000
USD
|
— |
–
USD
|
— |
3,000,000
USD
|
–
USD
|
— | — | — | — | — |
17,000,000
USD
|
19,000,000
USD
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
–
USD
|
1,000,000
USD
|
–
USD
|
— |
–
USD
|
–
USD
|
604,000,000
USD
|
— | — |
605,000,000
USD
|
— | — | — | — | — |
–
USD
|
–
USD
|
–
USD
|
— |
1,000,000
USD
|
— |
–
USD
|
— |
3,000,000
USD
|
–
USD
|
— | — | — | — | — |
504,000,000
USD
|
506,000,000
USD
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
–
USD
|
–
USD
|
–
USD
|
— |
–
USD
|
–
USD
|
179,000,000
USD
|
— | — |
179,000,000
USD
|
— | — | — | — | — |
–
USD
|
–
USD
|
–
USD
|
— |
–
USD
|
— |
–
USD
|
— |
–
USD
|
–
USD
|
— | — | — | — | — |
160,000,000
USD
|
160,000,000
USD
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
USD
|
–
USD
|
–
USD
|
— |
–
USD
|
–
USD
|
45,000,000
USD
|
— | — |
45,000,000
USD
|
— | — | — | — | — |
–
USD
|
–
USD
|
–
USD
|
— |
–
USD
|
— |
–
USD
|
— |
–
USD
|
–
USD
|
— | — | — | — | — |
39,000,000
USD
|
39,000,000
USD
|
— | — | — | — | — | — | — | — |