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Segment Information (Schedule Of Geographic Distribution Of Rigs By Segment) (Details) | Dec. 31, 2021 rigs contract
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Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 56
Number of drilling management contracts | contract | 2
Floaters [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 16
Jackups [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 33
Other [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 7
ARO |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 7
North & South America (Excluding Brazil) [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 12
North & South America (Excluding Brazil) [Member] | Floaters [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 6
North & South America (Excluding Brazil) [Member] | Jackups [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 6
North & South America (Excluding Brazil) [Member] | Other [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 0
North & South America (Excluding Brazil) [Member] | ARO |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 0
Europe & Mediterranean [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 18
Europe & Mediterranean [Member] | Floaters [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 6
Europe & Mediterranean [Member] | Jackups [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 12
Europe & Mediterranean [Member] | Other [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 0
Europe & Mediterranean [Member] | ARO |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 0
Middle East & Africa [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 17
Middle East & Africa [Member] | Floaters [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 2
Middle East & Africa [Member] | Jackups [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 8
Middle East & Africa [Member] | Other [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 7
Middle East & Africa [Member] | ARO |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 7
Asia Pacific [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 9
Asia Pacific [Member] | Floaters [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 2
Asia Pacific [Member] | Jackups [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 7
Asia Pacific [Member] | Other [Member] |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 0
Asia Pacific [Member] | ARO |
Segment Reporting Information [Line Items] |
Total number of contract drilling rigs | 0

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