Statement Of Cash Flows [Abstract]
| Concept |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
2018-01-01 to 2018-12-31 |
|---|---|---|---|
| Statement of cash flows [abstract] | |||
| Cash flows from (used in) operating activities [abstract] | |||
| Adjustments for finance income |
18,000,000
USD
|
18,000,000
USD
|
21,000,000
USD
|
| Adjustments for decrease (increase) in trade and other receivables |
177,000,000
USD
|
314,000,000
USD
|
258,000,000
USD
|
| Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, property, plant and equipment |
5,000,000
USD
|
30,000,000
USD
|
4,000,000
USD
|
| Adjustments for gains (losses) on change in fair value of derivatives |
39,000,000
USD
|
— | — |
| Adjustments for gain (loss) on disposals, property, plant and equipment |
8,000,000
USD
|
4,000,000
USD
|
7,000,000
USD
|
| Cash flows from (used in) investing activities [abstract] | |||
| Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
1,124,000,000
USD
|
1,080,000,000
USD
|
680,000,000
USD
|
| Cash flows from (used in) financing activities [abstract] | |||
| Dividends paid to equity holders of parent, classified as financing activities |
1,637,000,000
USD
|
2,120,000,000
USD
|
1,888,000,000
USD
|
| Dividends paid to non-controlling interests, classified as financing activities |
1,000,000
USD
|
— |
2,000,000
USD
|