v3.26.1
Segment Information (Schedule Of Geographic Distribution Of Rigs By Segment) (Details)
Jun. 30, 2026
rigs
jackup
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 44
Number of ARO Rigs ordered | jackup 2
Held for sale(1)  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 1
Floaters  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 14
Floaters | Held for sale(1)  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
Jackups  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 23
Jackups | Held for sale(1)  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 1
Other | Held for sale(1)  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
ARO | Held for sale(1)  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
Europe [Member]  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 15
Europe [Member] | Floaters  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 4
Europe [Member] | Jackups  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 11
Europe [Member] | Other  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
Europe [Member] | ARO  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
Middle East & Africa  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 16
Middle East & Africa | Floaters  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 4
Middle East & Africa | Jackups  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 5
Middle East & Africa | Other  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 7
Middle East & Africa | ARO  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 9
North & South America  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 8
North & South America | Floaters  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 5
North & South America | Jackups  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 3
North & South America | Other  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
North & South America | ARO  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
Asia & Pacific Rim  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 4
Asia & Pacific Rim | Floaters  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 1
Asia & Pacific Rim | Jackups  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 3
Asia & Pacific Rim | Other  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0
Asia & Pacific Rim | ARO  
Segment Reporting [Line Items]  
Total Number Of Contract Drilling Rigs 0