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 2021-12-31 |
As at 2021-01-01 |
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 2020-12-31 |
As at 2020-01-01 |
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 |
As at 2019-12-31 |
As at 2019-01-01 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — |
3,169,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,314,000,000
USD
|
— | — | — | — | — | — |
4,925,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
457,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
457,000,000
USD
|
— | — | — | — | — | — |
594,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
126,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
138,000,000
USD
|
— | — | — | — | — | — |
185,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements | — | — | — |
100,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
79,000,000
USD
|
— | — | — | — | — | — |
92,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
183,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
245,000,000
USD
|
— | — | — | — | — | — |
152,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — |
18,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
26,000,000
USD
|
— | — | — | — | — | — |
40,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current non-financial assets | — | — | — |
62,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
45,000,000
USD
|
— | — | — | — | — | — |
55,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
4,125,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,304,000,000
USD
|
— | — | — | — | — | — |
6,043,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current inventories | — | — | — |
1,565,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,085,000,000
USD
|
— | — | — | — | — | — |
1,480,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — |
626,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
378,000,000
USD
|
— | — | — | — | — | — |
534,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — |
29,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
46,000,000
USD
|
— | — | — | — | — | — |
53,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — |
12,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,000,000
USD
|
— | — | — | — | — | — |
4,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
1,027,000,000
USD
|
— | — | — | — | — |
1,627,000,000
USD
|
— | — | — | — | — | — | — | — |
1,627,000,000
USD
|
1,423,000,000
USD
|
— | — | — | — | — |
1,423,000,000
USD
|
— | — | — |
1,067,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — |
3,560,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,406,000,000
USD
|
— | — | — | — | — | — |
3,804,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — |
5,729,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,406,000,000
USD
|
— | — | — | — | — | — |
3,804,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — |
9,854,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,710,000,000
USD
|
— | — | — | — | — | — |
9,847,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — |
75,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
75,000,000
USD
|
— | — | — | — | — | — |
75,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
3,472,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,187,000,000
USD
|
— | — | — | — | — | — |
2,217,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — |
148,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
154,000,000
USD
|
— | — | — | — | — | — |
169,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
2,054,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
791,000,000
USD
|
— | — | — | — | — | — |
1,676,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
180,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
129,000,000
USD
|
— | — | — | — | — | — |
252,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
148,000,000
USD
|
3,472,000,000
USD
|
2,522,000,000
USD
|
2,234,000,000
USD
|
1,939,000,000
USD
|
2,054,000,000
USD
|
180,000,000
USD
|
1,928,000,000
USD
|
75,000,000
USD
|
— |
2,187,000,000
USD
|
129,000,000
USD
|
2,510,000,000
USD
|
791,000,000
USD
|
75,000,000
USD
|
154,000,000
USD
|
3,936,000,000
USD
|
109,000,000
USD
|
920,000,000
USD
|
— |
1,676,000,000
USD
|
252,000,000
USD
|
109,000,000
USD
|
3,048,000,000
USD
|
2,492,000,000
USD
|
1,928,000,000
USD
|
2,217,000,000
USD
|
169,000,000
USD
|
75,000,000
USD
|
— |
110,000,000
USD
|
3,820,000,000
USD
|
257,000,000
USD
|
1,681,000,000
USD
|
196,000,000
USD
|
1,938,000,000
USD
|
2,480,000,000
USD
|
6,000,000
USD
|
75,000,000
USD
|
3,026,000,000
USD
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current provisions for employee benefits | — | — | — |
143,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
240,000,000
USD
|
— | — | — | — | — | — |
271,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current provisions | — | — | — |
182,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
272,000,000
USD
|
— | — | — | — | — | — |
321,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
194,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
253,000,000
USD
|
— | — | — | — | — | — |
352,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
4,085,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,683,000,000
USD
|
— | — | — | — | — | — |
5,666,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current provisions | — | — | — |
37,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
41,000,000
USD
|
— | — | — | — | — | — |
33,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — |
1,539,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,264,000,000
USD
|
— | — | — | — | — | — |
1,378,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — |
67,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
108,000,000
USD
|
— | — | — | — | — | — |
79,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
3,535,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,107,000,000
USD
|
— | — | — | — | — | — |
2,253,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
7,620,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
7,790,000,000
USD
|
— | — | — | — | — | — |
7,919,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
9,854,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,710,000,000
USD
|
— | — | — | — | — | — |
9,847,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |