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 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 |
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 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — |
39,501,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
36,419,000,000
USD
|
— | — | — | — | — | — | — | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements | — | — | — |
1,021,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
1,258,000,000
USD
|
— | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — |
870,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
987,000,000
USD
|
— | — | — | — | — | — | — | — |
| Non-current inventories | — | — | — |
583,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
599,000,000
USD
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
532,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
639,000,000
USD
|
— | — | — | — | — | — | — | — |
| Other non-current non-financial assets | — | — | — |
794,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
725,000,000
USD
|
— | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
47,012,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
45,039,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current inventories | — | — | — |
5,228,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
5,970,000,000
USD
|
— | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — |
4,309,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
3,886,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — |
104,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
13,000,000
USD
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
9,057,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
7,508,000,000
USD
|
— | — | — | — |
6,335,000,000
USD
|
— | — | — |
| Current assets | — | — | — |
18,923,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
17,495,000,000
USD
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — |
65,985,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
62,534,000,000
USD
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Retained earnings | — | — | — |
41,716,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
37,192,000,000
USD
|
— | — | — | — | — | — | — | — |
| Share premium | — | — | — |
2,558,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
4,358,000,000
USD
|
— | — | — | — | — | — | — | — |
| Treasury shares | — | — | — |
6,141,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
6,107,000,000
USD
|
— | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
11,045,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
10,368,000,000
USD
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
27,825,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
25,824,000,000
USD
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
6,945,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
6,942,000,000
USD
|
— | — | — | — | — | — | — | — |
| Equity |
6,141,000,000
USD
|
41,716,000,000
USD
|
651,000,000
USD
|
34,770,000,000
USD
|
3,295,000,000
USD
|
27,825,000,000
USD
|
6,945,000,000
USD
|
11,696,000,000
USD
|
37,192,000,000
USD
|
6,942,000,000
USD
|
25,824,000,000
USD
|
5,107,000,000
USD
|
6,107,000,000
USD
|
11,004,000,000
USD
|
636,000,000
USD
|
32,766,000,000
USD
|
24,795,000,000
USD
|
6,590,000,000
USD
|
570,000,000
USD
|
10,965,000,000
USD
|
31,385,000,000
USD
|
36,274,000,000
USD
|
5,111,000,000
USD
|
6,195,000,000
USD
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions | — | — | — |
2,627,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
3,073,000,000
USD
|
— | — | — | — | — | — | — | — |
| Trade and other non-current payables | — | — | — |
318,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
321,000,000
USD
|
— | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
4,865,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
3,804,000,000
USD
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
20,632,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
20,690,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Current provisions | — | — | — |
579,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
595,000,000
USD
|
— | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — |
7,930,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
6,692,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — |
627,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
383,000,000
USD
|
— | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
10,583,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
9,078,000,000
USD
|
— | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
31,215,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
29,768,000,000
USD
|
— | — | — | — | — | — | — | — |