Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||
| Cash flows from (used in) operating activities [abstract] | |||||||
| Profit (loss) | — |
20,630,000,000
USD
|
— |
21,534,000,000
USD
|
16,432,000,000
USD
|
— | — |
| Adjustments to reconcile profit (loss) [abstract] | |||||||
| Adjustments for decrease (increase) in inventories | — |
7,319,000,000
USD
|
— |
4,477,000,000
USD
|
2,635,000,000
USD
|
— | — |
| Adjustments for depreciation and amortisation expense | — |
26,921,000,000
USD
|
— |
52,444,000,000
USD
|
28,701,000,000
USD
|
— | — |
| Adjustments for provisions | — |
76,000,000
USD
|
— |
1,104,000,000
USD
|
686,000,000
USD
|
— | — |
| Dividends received, classified as operating activities | — |
3,929,000,000
USD
|
— |
2,591,000,000
USD
|
4,139,000,000
USD
|
— | — |
| Other inflows (outflows) of cash, classified as operating activities | — |
803,000,000
USD
|
— |
8,000,000
USD
|
28,000,000
USD
|
— | — |
| Cash flows from (used in) operating activities | — |
45,104,000,000
USD
|
— |
34,105,000,000
USD
|
42,178,000,000
USD
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
479,000,000
USD
|
— |
1,024,000,000
USD
|
743,000,000
USD
|
— | — |
| Interest received, classified as investing activities | — |
423,000,000
USD
|
— |
532,000,000
USD
|
911,000,000
USD
|
— | — |
| Cash flows from (used in) investing activities | — |
4,761,000,000
USD
|
— |
13,278,000,000
USD
|
15,779,000,000
USD
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||||
| Payments to acquire or redeem entity's shares | — |
2,889,000,000
USD
|
— |
1,702,000,000
USD
|
10,188,000,000
USD
|
— | — |
| Proceeds from borrowings, classified as financing activities | — |
1,791,000,000
USD
|
— |
23,033,000,000
USD
|
11,185,000,000
USD
|
— | — |
| Repayments of borrowings, classified as financing activities | — |
21,534,000,000
USD
|
— |
17,385,000,000
USD
|
14,292,000,000
USD
|
— | — |
| Interest paid, classified as financing activities | — |
4,014,000,000
USD
|
— |
4,105,000,000
USD
|
4,649,000,000
USD
|
— | — |
| Cash flows from (used in) financing activities | — |
34,664,000,000
USD
|
— |
7,224,000,000
USD
|
35,209,000,000
USD
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
539,000,000
USD
|
— |
172,000,000
USD
|
124,000,000
USD
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
5,140,000,000
USD
|
— |
13,775,000,000
USD
|
8,686,000,000
USD
|
— | — |
| Cash and cash equivalents |
36,970,000,000
USD
|
— |
31,830,000,000
USD
|
— | — |
18,055,000,000
USD
|
26,741,000,000
USD
|