Disclosure Of Revenue From Contracts With Customers [Text Block]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Disclosure of revenue from contracts with customers [text block] | — | — | — |
| Contract liabilities [abstract] | |||
| Current contract liabilities |
250,000,000
USD
|
314,000,000
USD
|
348,000,000
USD
|