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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 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 | 5.00% | 4.00% | 11.00% | 6.00%
British Petroleum |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 11.00% | 14.00% | 12.00% | 14.00%
Equinor A S A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 3.00% | 6.00% | 1.00% | 10.00%
Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 81.00% | 76.00% | 76.00% | 70.00%
Floaters |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 53.00% | 46.00% | 53.00% | 42.00%
Floaters | Eni S.p.A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 1.00% | 0.00% | 5.00% | 0.00%
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 | 3.00% | 0.00% | 1.00% | 4.00%
Floaters | Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 49.00% | 41.00% | 46.00% | 33.00%
Jackups |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 37.00% | 45.00% | 37.00% | 48.00%
Jackups | Eni S.p.A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 4.00% | 4.00% | 6.00% | 6.00%
Jackups | British Petroleum |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 5.00% | 3.00% | 5.00% | 3.00%
Jackups | Equinor A S A |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 0.00% | 6.00% | 0.00% | 6.00%
Jackups | Other Customers |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 28.00% | 32.00% | 26.00% | 33.00%
Managed Rigs |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 10.00% | 9.00% | 10.00% | 10.00%
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 | 6.00% | 6.00% | 6.00% | 6.00%
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 | 4.00% | 3.00% | 4.00% | 4.00%

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