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) investing activities [abstract] | |||
| Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations |
44,000,000
USD
|
1,000,000
USD
|
–
USD
|
| Purchase of financial instruments, classified as investing activities |
5,000,000
USD
|
5,000,000
USD
|
9,000,000
USD
|
| Proceeds from disposal or maturity of available-for-sale financial assets |
–
USD
|
4,000,000
USD
|
–
USD
|
| Cash flows from (used in) financing activities [abstract] | |||
| Proceeds from issue of bonds, notes and debentures |
–
USD
|
1,093,000,000
USD
|
–
USD
|
| Repayments of bonds, notes and debentures |
–
USD
|
290,000,000
USD
|
–
USD
|