Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 2021-12-31 |
As at 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 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — |
58,000,000
USD
|
— | — | — | — | — | — | — | — |
60,000,000
USD
|
— | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
37,000,000
USD
|
— | — | — | — | — | — | — | — |
43,000,000
USD
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
105,000,000
USD
|
— | — | — | — | — | — | — | — |
75,000,000
USD
|
— | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
388,000,000
USD
|
— | — | — | — | — | — | — | — |
344,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Current inventories | — | — | — |
95,000,000
USD
|
— | — | — | — | — | — | — | — |
93,000,000
USD
|
— | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — |
202,000,000
USD
|
— | — | — | — | — | — | — | — |
179,000,000
USD
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
1,102,000,000
USD
|
— | — | — | — | — | — | — | — |
858,000,000
USD
|
— | — | — | — |
1,060,000,000
USD
|
— | — | — |
| Current assets | — | — | — |
1, 444
USD
|
— | — | — | — | — | — | — | — |
1, 187
USD
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — |
1,832,000,000
USD
|
— | — | — | — | — | — | — | — |
1,531,000,000
USD
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — |
70,000,000
USD
|
— | — | — | — | — | — | — | — |
73,000,000
USD
|
— | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
1,438,000,000
USD
|
— | — | — | — | — | — | — | — |
1,31 1
USD
|
— | — | — | — | — | — | — | — |
| Share premium | — | — | — |
7,000,000
USD
|
— | — | — | — | — | — | — | — |
6,000,000
USD
|
— | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
1,295,000,000
USD
|
— | — | — | — | — | — | — | — |
1,2 95
USD
|
— | — | — | — | — | — | — | — |
| Equity |
1,438,000,000
USD
|
3,000,000
USD
|
1,295,000,000
USD
|
203,000,000
USD
|
7,000,000
USD
|
20,000,000
USD
|
70,000,000
USD
|
1,311,000,000
USD
|
73,000,000
USD
|
13,000,000
USD
|
1,295,000,000
USD
|
6,000,000
USD
|
82,000,000
USD
|
–
USD
|
1,295,000,000
USD
|
23,000,000
USD
|
5,000,000
USD
|
20 9
USD
|
1,449,000,000
USD
|
–
USD
|
73,000,000
USD
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — |
76,000,000
USD
|
— | — | — | — | — | — | — | — |
51,000,000
USD
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
825,000,000
USD
|
— | — | — | — | — | — | — | — |
850,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — |
5,000,000
USD
|
— | — | — | — | — | — | — | — |
38,000,000
USD
|
— | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — |
720,000,000
USD
|
— | — | — | — | — | — | — | — |
524,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — |
7,000,000
USD
|
— | — | — | — | — | — | — | — |
15,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
804,000,000
USD
|
— | — | — | — | — | — | — | — |
5 99
USD
|
— | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
1,629,000,000
USD
|
— | — | — | — | — | — | — | — |
1, 449
USD
|
— | — | — | — | — | — | — | — |