Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | |||||||||||||||||||
| Revenue [abstract] | |||||||||||||||||||
| Revenue from sale of goods | — | — | — | — |
13,224,000,000
USD
|
— |
9,222,000,000
USD
|
— | — | — | — | — | — | — | — | — |
11,117,000,000
USD
|
— | — |
| Revenue from rendering of services | — | — | — | — |
262,000,000
USD
|
— |
230,000,000
USD
|
— | — | — | — | — | — | — | — | — |
327,000,000
USD
|
— | — |
| Interest income | — | — | — | — |
4,000,000
USD
|
— |
5,000,000
USD
|
— | — | — | — | — | — | — | — | — |
7,000,000
USD
|
— | — |
| Revenue | — | — | — | — |
13,486,000,000
USD
|
— |
9,452,000,000
USD
|
— | — | — | — | — | — | — | — | — |
11,444,000,000
USD
|
— | — |
| Material income and expense [abstract] | |||||||||||||||||||
| Gains (losses) on disposals of property, plant and equipment [abstract] | |||||||||||||||||||
| Gains (losses) on disposals of property, plant and equipment | — | — | — | — |
7,000,000
USD
|
— |
3,000,000
USD
|
— | — | — | — | — | — | — | — | — |
6,000,000
USD
|
— | — |
| Miscellaneous other operating income | — | — | — | — |
16,000,000
USD
|
— |
19,000,000
USD
|
— | — | — | — | — | — | — | — | — |
19,000,000
USD
|
— | — |
| Miscellaneous other operating expense | — | — | — | — |
45,000,000
USD
|
— |
43,000,000
USD
|
— | — | — | — | — | — | — | — | — |
42,000,000
USD
|
— | — |
| Selling, general and administrative expense [abstract] | |||||||||||||||||||
| General and administrative expense | — | — | — | — |
545,000,000
USD
|
— |
493,000,000
USD
|
— | — | — | — | — | — | — | — | — |
536,000,000
USD
|
— | — |
| Expenses by nature [abstract] | |||||||||||||||||||
| Classes of employee benefits expense [abstract] | |||||||||||||||||||
| Short-term employee benefits expense [abstract] | |||||||||||||||||||
| Social security contributions | — | — | — | — |
30,000,000
USD
|
— |
29,000,000
USD
|
— | — | — | — | — | — | — | — | — |
23,000,000
USD
|
— | — |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | |||||||||||||||||||
| Impairment loss (reversal of impairment loss) recognised in profit or loss | — | — | — | — |
22,000,000
USD
|
— |
313,000,000
USD
|
— | — | — | — | — | — | — | — | — |
335,000,000
USD
|
— | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | |||||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — | — |
14,000,000
USD
|
— |
2,000,000
USD
|
— | — | — | — | — | — | — | — | — |
9,000,000
USD
|
— | — |
| Income tax relating to components of other comprehensive income [abstract] | |||||||||||||||||||
| Income tax relating to components of other comprehensive income | — | — | — | — |
20,000,000
USD
|
— |
2,000,000
USD
|
— | — | — | — | — | — | — | — | — |
1,000,000
USD
|
— | — |
| Comprehensive income, continuing and discontinued operations [abstract] | |||||||||||||||||||
| Comprehensive income |
75,000,000
USD
|
1,000,000
USD
|
3,058,000,000
USD
|
39,000,000
USD
|
3,133,000,000
USD
|
3,098,000,000
USD
|
50,000,000
USD
|
847,000,000
USD
|
888,000,000
USD
|
9,000,000
USD
|
41,000,000
USD
|
1,000,000
USD
|
772,000,000
USD
|
1,078,000,000
USD
|
314,000,000
USD
|
61,000,000
USD
|
1,139,000,000
USD
|
1,000,000
USD
|
6,000,000
USD
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | |||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — |
3,058,000,000
USD
|
— |
41,000,000
USD
|
— | — | — | — | — | — | — | — | — |
1,078,000,000
USD
|
— | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | |||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
75,000,000
USD
|
— |
9,000,000
USD
|
— | — | — | — | — | — | — | — | — |
61,000,000
USD
|
— | — |