Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Oil and gas assets |
2,049,000,000
USD
|
2,153,000,000
USD
|
— |
| Other property, plant and equipment |
11,000,000
USD
|
3,000,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Current prepayments and current accrued income other than current contract assets [abstract] | |||
| Current prepayments [abstract] | |||
| Current prepaid expenses |
7,000,000
USD
|
2,000,000
USD
|
— |
| Trade and other current receivables |
92,000,000
USD
|
91,000,000
USD
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
686,000,000
USD
|
554,000,000
USD
|
756,000,000
USD
|
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
141,000,000
USD
|
98,000,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
8,000,000
USD
|
3,000,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
8,000,000
USD
|
8,000,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
1,792,000,000
USD
|
1,788,000,000
USD
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
763,000,000
USD
|
763,000,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
2,845,000,000
USD
|
2,803,000,000
USD
|
— |
| Liabilities |
279,000,000
USD
|
226,000,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
785,000,000
USD
|
647,000,000
USD
|
— |
| Current liabilities |
143,000,000
USD
|
98,000,000
USD
|
— |
| Assets less current liabilities [abstract] |