Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2018-01-01 to 2018-12-31 |
2018-01-01 to 2018-12-31 |
2018-01-01 to 2018-12-31 |
2018-01-01 to 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) |
1,236,000,000
USD
|
1,237,000,000
USD
|
1,000,000
USD
|
— | — |
1,339,000,000
USD
|
1,341,000,000
USD
|
2,000,000
USD
|
2,243,000,000
USD
|
2,238,000,000
USD
|
— |
5,000,000
USD
|
| Other comprehensive income [abstract] | ||||||||||||
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, net of tax | — |
839,000,000
USD
|
3,000,000
USD
|
836,000,000
USD
|
642,000,000
USD
|
— |
644,000,000
USD
|
2,000,000
USD
|
1,154,000,000
USD
|
— |
1,151,000,000
USD
|
3,000,000
USD
|
| Cash flow hedges [abstract] | ||||||||||||
| Other comprehensive income, net of tax, cash flow hedges | — |
164,000,000
USD
|
— |
164,000,000
USD
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
1,236,000,000
USD
|
234,000,000
USD
|
2,000,000
USD
|
1,000,000,000
USD
|
642,000,000
USD
|
1,339,000,000
USD
|
1,985,000,000
USD
|
4,000,000
USD
|
1,089,000,000
USD
|
2,238,000,000
USD
|
1,151,000,000
USD
|
2,000,000
USD
|
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — |
236,000,000
USD
|
— | — | — | — |
1,981,000,000
USD
|
— |
1,087,000,000
USD
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — |
2,000,000
USD
|
— | — | — | — |
4,000,000
USD
|
— |
2,000,000
USD
|
— | — | — |