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 |
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 |
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 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||
| Equity |
2 355
USD
|
— | — | — | — | — |
144,000,000
USD
|
2 094
USD
|
0
USD
|
118,000,000
USD
|
2 212
USD
|
— | — |
0
USD
|
1 891
USD
|
— | — |
2 230
USD
|
2 009
USD
|
221,000,000
USD
|
— |
118,000,000
USD
|
— | — |
1 890
USD
|
257,000,000
USD
|
2 008
USD
|
122,000,000
USD
|
4,000,000
USD
|
2 265
USD
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — |
293,000,000
USD
|
296,000,000
USD
|
3,000,000
USD
|
— | — | — | — | — |
296,000,000
USD
|
20,000,000
USD
|
— | — | — |
72,000,000
USD
|
— | — | — | — | — |
53,000,000
USD
|
72,000,000
USD
|
— | — | — | — | — | — |
| Other comprehensive income | — | — | — |
64,000,000
USD
|
55,000,000
USD
|
8,000,000
USD
|
— | — | — | — | — |
55,000,000
USD
|
3,000,000
USD
|
— | — | — |
32,000,000
USD
|
— | — | — | — | — |
35,000,000
USD
|
32,000,000
USD
|
— | — | — | — | — | — |
| Comprehensive income | — |
0
USD
|
0
USD
|
229,000,000
USD
|
240,000,000
USD
|
11,000,000
USD
|
— | — | — | — | — |
240,000,000
USD
|
23,000,000
USD
|
— | — |
0
USD
|
41,000,000
USD
|
— | — | — |
0
USD
|
— |
17,000,000
USD
|
41,000,000
USD
|
— | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — |
42,000,000
USD
|
33,000,000
USD
|
9,000,000
USD
|
— | — | — | — | — |
33,000,000
USD
|
8,000,000
USD
|
— | — | — |
42,000,000
USD
|
— | — | — | — | — |
50,000,000
USD
|
42,000,000
USD
|
— | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — | — |
4,000,000
USD
|
4,000,000
USD
|
— | — | — | — | — | — |
4,000,000
USD
|
— | — | — | — |
8,000,000
USD
|
— | — | — | — | — |
8,000,000
USD
|
8,000,000
USD
|
— | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — | — |
57,000,000
USD
|
— |
57,000,000
USD
|
— | — | — | — | — | — |
4,000,000
USD
|
— | — | — |
10,000,000
USD
|
— | — | — | — | — |
6,000,000
USD
|
10,000,000
USD
|
— | — | — | — | — | — |