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Segment Information (Schedule Of Geographic Distribution Of Rigs By Segment) (Details)	Jun. 30, 2024
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	53
Floaters
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	18
Jackups
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	26
Other
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	9
ARO
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	9
Middle East and Africa
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	17
Middle East and Africa | Floaters
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	4
Middle East and Africa | Jackups
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	4
Middle East and Africa | Other
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	9
Middle East and Africa | ARO
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	9
Europe
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	14
Europe | Floaters
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	3
Europe | Jackups
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	11
Europe | Other
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	0
Europe | ARO
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	0
Americas [Member]
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	16
Americas [Member] | Floaters
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	9
Americas [Member] | Jackups
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	7
Americas [Member] | Other
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	0
Americas [Member] | ARO
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	0
Asia Pacific
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	6
Asia Pacific | Floaters
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	2
Asia Pacific | Jackups
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	4
Asia Pacific | Other
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	0
Asia Pacific | ARO
Segment Reporting Information [Line Items]
Total Number Of Contract Drilling Rigs	0

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Total Number Of Contract Drilling Rigs

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