Statement Of Cash Flows [Abstract]
| Concept |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Increase (decrease) in working capital |
239,000,000
USD
|
476,000,000
USD
|
| Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss |
4,541,000,000
USD
|
4,287,000,000
USD
|
| Income taxes paid, classified as operating activities |
424,000,000
USD
|
501,000,000
USD
|
| Cash flows from (used in) investing activities [abstract] | ||
| Proceeds from sales of interests in associates |
12,000,000
USD
|
46,000,000
USD
|
| Purchase of investments other than investments accounted for using equity method |
81,000,000
USD
|
152,000,000
USD
|
| Proceeds from sales of investments other than investments accounted for using equity method |
5,000,000
USD
|
2,617,000,000
USD
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
430,000,000
USD
|
469,000,000
USD
|
| Dividends paid to non-controlling interests, classified as financing activities |
92,000,000
USD
|
70,000,000
USD
|
| Proceeds from sale or issue of treasury shares |
30,000,000
USD
|
-
USD
|