XML 106 R92.htm IDEA: XBRL DOCUMENT
v3.25.4

Supplemental Financial Information Supplemental Financial Information (Major Customers) (Details) - Customer Concentration Risk [Member] - Revenue | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 100.00% | 100.00% | 100.00%
BP [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 12.00% | 17.00% | 11.00%
Other Customers [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 65.00% | 70.00% | 85.00%
Petrobras |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 13.00% | 9.00% | 4.00%
Azule |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 10.00% | 4.00% |
Floaters [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 53.00% | 61.00% | 53.00%
Floaters [Member] | BP [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 3.00% | 9.00% | 0.00%
Floaters [Member] | Other Customers [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 30.00% | 39.00% | 49.00%
Floaters [Member] | Petrobras |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 13.00% | 9.00% | 4.00%
Floaters [Member] | Azule |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 7.00% | 4.00% |
Jackups Member |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 39.00% | 32.00% | 37.00%
Jackups Member | BP [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 3.00% | 3.00% | 5.00%
Jackups Member | Other Customers [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 33.00% | 29.00% | 32.00%
Jackups Member | Petrobras |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 0.00% | 0.00% | 0.00%
Jackups Member | Azule |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 3.00% | 0.00% |
Managed Rig |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 8.00% | 7.00% | 10.00%
Managed Rig | BP [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 6.00% | 5.00% | 6.00%
Managed Rig | Other Customers [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 2.00% | 2.00% | 4.00%
Managed Rig | Petrobras |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 0.00% | 0.00% | 0.00%
Managed Rig | Azule |  |  |
Revenue from External Customer [Line Items] |  |  |
Concentration Risk, Percentage | 0.00% | 0.00% |

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 20 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=val_BPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=val_OtherCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=val_PetrobrasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=val_AzuleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=val_FloatersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=val_JackupsMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=val_ManagedRigsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |