Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
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] | |||
| Adjustments for interest expense |
232,000,000
USD
|
328,000,000
USD
|
336,000,000
USD
|
| Adjustments for interest income |
5,000,000
USD
|
6,000,000
USD
|
8,000,000
USD
|
| Adjustments for deferred tax expense |
70,000,000
USD
|
142,000,000
USD
|
5,000,000
USD
|
| Cash flows from (used in) operations before changes in working capital |
4,000,000,000
USD
|
1,593,000,000
USD
|
2,057,000,000
USD
|
| Adjustments for decrease (increase) in financial assets measured at fair value through profit or loss | — | — | — |
| Adjustments for decrease (increase) in financial assets at fair value through profit or loss, mandatorily measured at fair value | — | — | — |
| Adjustments for decrease (increase) in financial assets held for trading |
2,000,000
USD
|
1,000,000
USD
|
29,000,000
USD
|
| Adjustments for gain (loss) on disposals, property, plant and equipment |
8,000,000
USD
|
3,000,000
USD
|
3,000,000
USD
|
| Cash flows from (used in) investing activities [abstract] | |||
| Cash flows from (used in) decrease (increase) in restricted cash and cash equivalents | — |
1,000,000
USD
|
— |
| Proceeds from sales of interests in associates | — | — |
5,000,000
USD
|
| Cash advances and loans made to related parties |
1,000,000
USD
|
1,000,000
USD
|
— |
| Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations |
2,000,000
USD
|
11,000,000
USD
|
44,000,000
USD
|
| Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
963,000,000
USD
|
667,000,000
USD
|
767,000,000
USD
|
| Proceeds from disposals of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
6,000,000
USD
|
6,000,000
USD
|
16,000,000
USD
|
| Proceeds from sales of investments other than investments accounted for using equity method | — | — |
32,000,000
USD
|
| Cash flows from (used in) decrease (increase) in short-term deposits and investments |
4,000,000
USD
|
4,000,000
USD
|
7,000,000
USD
|
| Cash flows from (used in) financing activities [abstract] | |||
| Dividends paid to equity holders of parent, classified as financing activities |
1,531,000,000
USD
|
872,000,000
USD
|
1,086,000,000
USD
|
| Dividends paid to non-controlling interests, classified as financing activities |
18,000,000
USD
|
5,000,000
USD
|
5,000,000
USD
|