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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
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 100.00% | 100.00%
Eni S.p.A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 7.00% | 14.00%
British Petroleum |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 16.00% | 13.00%
Equinor A S A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 11.00% | 0.00%
Other Customers |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 66.00% | 73.00%
Floaters |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 62.00% | 50.00%
Floaters | Eni S.p.A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 2.00% | 7.00%
Floaters | British Petroleum |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 6.00% | 2.00%
Floaters | Equinor A S A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 11.00% | 0.00%
Floaters | Other Customers |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 43.00% | 41.00%
Jackups |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 29.00% | 39.00%
Jackups | Eni S.p.A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 5.00% | 7.00%
Jackups | British Petroleum |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 4.00% | 5.00%
Jackups | Equinor A S A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 0.00% | 0.00%
Jackups | Other Customers |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 20.00% | 27.00%
Other |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 9.00% | 11.00%
Other | Eni S.p.A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 0.00% | 0.00%
Other | British Petroleum |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 6.00% | 6.00%
Other | Equinor A S A |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 0.00% | 0.00%
Other | Other Customers |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 3.00% | 5.00%

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