XML 205 R118.htm IDEA: XBRL DOCUMENT
v3.20.4

Subsequent event (Details) £ in Millions, $ in Millions |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 26, 2021 GBP (£) | Jan. 29, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 | Dec. 31, 2030 USD ($) | Feb. 09, 2021 USD ($)
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Expected cost increase from increase in CO2 tax |  |  | $ 400 |  |  |
Empire Wind and Beacon Wind assets [member] |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Proportion of ownership interest divested |  |  |  | 50.00% |  |
Dogger Bank Wind Farm A and B [member] |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Proportion of ownership interest divested |  |  | 10.00% |  |  |
Disposal of interest in associates [member] | Empire Wind and Beacon Wind assets [member] |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Proportion of ownership interest divested |  | 50.00% |  |  |  |
Potential consideration from divestment |  | $ 1,200 |  |  |  |
Interim period adjustments |  | $ 100 |  |  |  |
Disposal of interest in associates [member] | Bakken field in the US states [member] |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Potential consideration from divestment |  |  |  |  |  | $ 900
Disposal of interest in associates [member] | Dogger Bank Wind Farm A and B [member] |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Proportion of ownership interest divested | 10.00% |  |  |  |  |
Potential consideration from divestment | £ | £ 206.4 |  |  |  |  |
New climate action plan [member] | Forecast [member] |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |
Expected cost increase from increase in CO2 tax |  |  |  |  | $ 400 |

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