Disclosure Of Intangible Assets [Text Block]
| Concept |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|
| Disclosure of intangible assets [text block] | — | — | — | — |
| Disclosure of detailed information about intangible assets [text block] | — | — | — | — |
| Disclosure of detailed information about intangible assets [abstract] | ||||
| Disclosure of detailed information about intangible assets [line items] | ||||
| Reconciliation of changes in intangible assets other than goodwill [abstract] | ||||
| Intangible assets other than goodwill |
6,392,000,000
USD
|
— |
6,908,000,000
USD
|
— |
| Research and development expense | — |
186,000,000
USD
|
— |
236,000,000
USD
|