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v3.21.2

Commitments and contingencies (Details) $ in Millions |  | 1 Months Ended | 6 Months Ended | 12 Months Ended | 30 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 28, 2019 | Mar. 31, 2019 rig | Jun. 30, 2021 USD ($) contract | Dec. 31, 2020 USD ($) | Jun. 30, 2021 USD ($) contract
Guarantor Obligations [Line Items] |  |  |  |  |
Number of newbuilding contracts cancelled | contract |  |  | 8 |  | 8
Number of rigs included in legal proceedings | rig |  | 8 |  |  |
Costs to repair equipment |  |  | $ 23.0 |  |
Insurance deductible |  |  | 1.3 |  |
Recovered from insurance |  |  |  |  | $ 15.3
Insurance receivable |  |  | $ 6.4 | $ 4.0 | $ 6.4
Insurance Recoveries, Loss Of Hire |  |  |  | $ 19.0 |
Nigeria | Seadrill Mobile Units (Nigeria) Ltd |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Contract revenue, surcharge | 2.00% |  |  |  |

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