Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
As at 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 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||
| Profit (loss) |
5,000,000
USD
|
— |
1,805,000,000
USD
|
1,800,000,000
USD
|
1,805,000,000
USD
|
4,405,000,000
USD
|
— |
4,368,000,000
USD
|
37,000,000
USD
|
4,405,000,000
USD
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||
| Adjustments for income tax expense | — | — | — |
44,000,000
USD
|
— | — | — |
293,000,000
USD
|
— | — | — |
| Adjustments for decrease (increase) in inventories | — | — | — |
288,000,000
USD
|
— | — | — |
259,000,000
USD
|
— | — | — |
| Adjustments for decrease (increase) in trade accounts receivable | — | — | — |
973,000,000
USD
|
— | — | — |
390,000,000
USD
|
— | — | — |
| Adjustments for decrease (increase) in other operating receivables | — | — | — |
32,000,000
USD
|
— | — | — |
28,000,000
USD
|
— | — | — |
| Adjustments for increase (decrease) in trade accounts payable | — | — | — |
234,000,000
USD
|
— | — | — |
16,000,000
USD
|
— | — | — |
| Adjustments for increase (decrease) in other operating payables | — | — | — |
38,000,000
USD
|
— | — | — |
439,000,000
USD
|
— | — | — |
| Adjustments for provisions | — | — | — |
377,000,000
USD
|
— | — | — |
159,000,000
USD
|
— | — | — |
| Adjustments for share-based payments | — | — | — |
18,000,000
USD
|
— | — | — |
40,000,000
USD
|
— | — | — |
| Other adjustments for non-cash items | — | — | — |
424,000,000
USD
|
— | — | — |
393,000,000
USD
|
— | — | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — |
27,000,000
USD
|
— | — | — |
5,000,000
USD
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
3,367,000,000
USD
|
— | — | — |
2,643,000,000
USD
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — |
893,000,000
USD
|
— | — | — |
-
USD
|
— | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
20,000,000
USD
|
— | — | — |
4,000,000
USD
|
— | — | — |
| Proceeds from government grants, classified as investing activities | — | — | — |
3,000,000
USD
|
— | — | — |
-
USD
|
— | — | — |
| Cash flows from (used in) investing activities | — | — | — |
1,388,000,000
USD
|
— | — | — |
2,896,000,000
USD
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||
| Proceeds from borrowings, classified as financing activities | — | — | — |
1 162,3
USD
|
— | — | — | — | — | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
570,000,000
USD
|
— | — | — |
555,000,000
USD
|
— | — | — |
| Interest paid, classified as financing activities | — | — | — |
898,000,000
USD
|
— | — | — |
802,000,000
USD
|
— | — | — |
| Cash flows from (used in) financing activities | — | — | — |
2,176,000,000
USD
|
— | — | — |
1,480,000,000
USD
|
— | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
105,000,000
USD
|
— | — | — |
207,000,000
USD
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | — | — |
662,000,000
USD
|
— | — | — |
2,251,000,000
USD
|
— | — | — |
| Cash and cash equivalents | — |
3,192,000,000
USD
|
— | — | — | — |
3,854,000,000
USD
|
— | — | — |
6,105,000,000
USD
|