XML 63 R56.htm IDEA: XBRL DOCUMENT
v3.21.2

Common shares (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Equity [Abstract] |
Schedule of share capital | Share capital as at December 31, 2020 and June 30, 2021 was as follows:
|  | Issued and fully paid share capital $0.10 par value each |  |  |  |
|  | Shares |  | $ millions |  |  |  |  |  |  |  |
As at December 31, 2020 |  | 100,384,435 |  |  | 10 |  |  |  |  |  |  |  |  |
As at June 30, 2021 |  | 100,384,435 |  |  | 10 |  |  |  |  |  |  |  |  |

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCommonStockOutstandingRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration