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Supplemental Financial Information Schedule of Revenue by Major Customers, by Reporting Segments (Details) - Revenue Benchmark [Member] - Customer Concentration Risk | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 100.00% | 100.00% | 100.00% | 100.00%
Eni S.p.A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 14.00% | 4.00% | 14.00% | 7.00%
British Petroleum |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 12.00% | 13.00% | 12.00% | 14.00%
Equinor A S A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 17.00% | 0.00% | 12.00%
Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 74.00% | 66.00% | 74.00% | 67.00%
Floaters |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 55.00% | 45.00% | 52.00% | 40.00%
Floaters | Eni S.p.A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 7.00% | 0.00% | 7.00% | 2.00%
Floaters | British Petroleum |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 5.00% | 1.00% | 5.00%
Floaters | Equinor A S A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 12.00% | 0.00% | 7.00%
Floaters | Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 48.00% | 28.00% | 44.00% | 26.00%
Jackups |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 35.00% | 45.00% | 37.00% | 49.00%
Jackups | Eni S.p.A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 7.00% | 4.00% | 7.00% | 5.00%
Jackups | British Petroleum |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 5.00% | 2.00% | 5.00% | 2.00%
Jackups | Equinor A S A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 5.00% | 0.00% | 5.00%
Jackups | Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 23.00% | 34.00% | 25.00% | 37.00%
Managed Rigs |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 10.00% | 10.00% | 11.00% | 11.00%
Managed Rigs | Eni S.p.A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 0.00% | 0.00% | 0.00%
Managed Rigs | British Petroleum |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 7.00% | 6.00% | 6.00% | 7.00%
Managed Rigs | Equinor A S A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 0.00% | 0.00% | 0.00%
Managed Rigs | Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 3.00% | 4.00% | 5.00% | 4.00%

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