Unaudited Condensed Consolidated Financial Statements (Policies)	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting, Policy	Unaudited Condensed Consolidated Financial Statements We prepared the accompanying condensed consolidated financial statements of Valaris Limited and its subsidiaries (the "Company," "Valaris," "our," "we" or "us") in accordance with accounting principles generally accepted in the United States of America ("GAAP"), pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") included in the instructions to Form 10-Q and Article 10 of Regulation S-X. The financial information included in this report is unaudited but, in our opinion, includes all adjustments (consisting of normal recurring adjustments) that are necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods presented. The December 31, 2025 Condensed Consolidated Balance Sheet data was derived from our 2025 audited consolidated financial statements but does not include all disclosures required by GAAP. The preparation of our condensed consolidated financial statements requires us to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, the related revenues and expenses and disclosures of gain and loss contingencies as of the date of the financial statements. Actual results could differ from those estimates. Results of operations for the three and six months ended June 30, 2026 are not necessarily indicative of the results of operations that will be realized for the year ending December 31, 2026, or for any future period. We recommend these condensed consolidated financial statements be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 20, 2026 (our "Annual Report"). Pending Business Combination with Transocean On February 9, 2026, we entered into a business combination agreement (the "Business Combination Agreement") with Transocean Ltd., a Swiss corporation ("Transocean"), under which Transocean will acquire all of the issued and outstanding common shares of Valaris in exchange for shares of Transocean at an exchange ratio of 15.235 Transocean shares for each common share of Valaris (the "Business Combination"). In addition, Warrants that are outstanding as of immediately prior to the transaction closing date will be assumed by Transocean and remain outstanding and be exercisable for the Fundamental Transaction Consideration (as defined in the Warrant Agreement, dated as of April 30, 2021, by and between Valaris and the warrant agent named therein) multiplied by the number of Valaris common shares for which each warrant is exercisable immediately prior to the transaction closing date. The Business Combination will be effected by way of a court-approved scheme of arrangement between Valaris and the holders of the Valaris common shares pursuant to section 99 of the Companies Act 1981 of Bermuda, as amended. Upon completion and on a fully diluted basis assuming conversion to shares of Transocean’s exchangeable bonds due 2029, Transocean shareholders would own approximately 53% of the combined company, with Valaris shareholders owning the remaining 47%. Completion of the Business Combination is subject to customary closing conditions, including (i) the receipt of the requisite approvals of the Valaris shareholders and the Transocean shareholders, (ii) the granting of the sanction order on terms consistent with the Business Combination Agreement, (iii) the Transocean shares issued pursuant to the Business Combination Agreement having been approved for listing on the NYSE, subject to official notice of issuance, (iv) certain regulatory approvals having been obtained or any applicable waiting period having expired or been terminated, (v) no governmental authority within applicable jurisdictions having enacted or issued any law or order preventing or prohibiting the consummation of the Business Combination and (vi) the absence of a Transocean Material Adverse Effect or a Valaris Material Adverse Effect (each as defined within the Business Combination Agreement). Under certain specified circumstances in which the Business Combination Agreement is terminated, we would be required to pay to Transocean a termination fee equal to $173.0 million.
New Accounting Pronouncements	Summary of Significant Accounting Policies Please refer to "Note 1. Description of the Business and Summary of Significant Accounting Policies" of our Consolidated Financial Statements from our Annual Report for the discussion of our significant accounting policies. Certain previously reported amounts have been reclassified to conform to the current year presentation. New Accounting Pronouncements Accounting Pronouncements to be Adopted Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures - In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses ("Update 2024-03"), which requires companies to disclose additional information for certain relevant expense categories in the Statements of Operations and within the notes to the financial statements. Update 2024-03 is effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted and can be applied either prospectively to financial statements issued for reporting periods after the effective date, or retrospectively to prior periods which are presented in the financial statements. We are currently assessing the impact of the requirements on our condensed consolidated financial statements and disclosures, but do not expect the adoption of Update 2024-03 to result in a change in recognition or measurement of expenses within our consolidated financial statements. With the exception of the updated standard discussed above, there have been no accounting pronouncements issued and not yet effective that have significance, or potential significance, to our condensed consolidated financial statements.

Unaudited Condensed Consolidated Financial Statements (Policies)

We prepared the accompanying condensed consolidated financial statements of Valaris Limited and its subsidiaries (the "Company," "Valaris," "our," "we" or "us") in accordance with accounting principles generally accepted in the United States of America ("GAAP"), pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") included in the instructions to Form 10-Q and Article 10 of Regulation S-X. The financial information included in this report is unaudited but, in our opinion, includes all adjustments (consisting of normal recurring adjustments) that are necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods presented. The December 31, 2025 Condensed Consolidated Balance Sheet data was derived from our 2025 audited consolidated financial statements but does not include all disclosures required by GAAP. The preparation of our condensed consolidated financial statements requires us to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, the related revenues and expenses and disclosures of gain and loss contingencies as of the date of the financial statements. Actual results could differ from those estimates.

Results of operations for the three and six months ended June 30, 2026 are not necessarily indicative of the results of operations that will be realized for the year ending December 31, 2026, or for any future period. We recommend these condensed consolidated financial statements be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 20, 2026 (our "Annual Report").

Pending Business Combination with Transocean

On February 9, 2026, we entered into a business combination agreement (the "Business Combination Agreement") with Transocean Ltd., a Swiss corporation ("Transocean"), under which Transocean will acquire all of the issued and outstanding common shares of Valaris in exchange for shares of Transocean at an exchange ratio of 15.235 Transocean shares for each common share of Valaris (the "Business Combination"). In addition, Warrants that are outstanding as of immediately prior to the transaction closing date will be assumed by Transocean and remain outstanding and be exercisable for the Fundamental Transaction Consideration (as defined in the Warrant Agreement, dated as of April 30, 2021, by and between Valaris and the warrant agent named therein) multiplied by the number of Valaris common shares for which each warrant is exercisable immediately prior to the transaction closing date. The Business Combination will be effected by way of a court-approved scheme of arrangement between Valaris and the holders of the Valaris common shares pursuant to section 99 of the Companies Act 1981 of Bermuda, as amended. Upon completion and on a fully diluted basis assuming conversion to shares of Transocean’s exchangeable bonds due 2029, Transocean shareholders would own approximately 53% of the combined company, with Valaris shareholders owning the remaining 47%.

Completion of the Business Combination is subject to customary closing conditions, including (i) the receipt of the requisite approvals of the Valaris shareholders and the Transocean shareholders, (ii) the granting of the sanction order on terms consistent with the Business Combination Agreement, (iii) the Transocean shares issued pursuant to the Business Combination Agreement having been approved for listing on the NYSE, subject to official notice of issuance, (iv) certain regulatory approvals having been obtained or any applicable waiting period having expired or been terminated, (v) no governmental authority within applicable jurisdictions having enacted or issued any law or order preventing or prohibiting the consummation of the Business Combination and (vi) the absence of a Transocean Material Adverse Effect or a Valaris Material Adverse Effect (each as defined within the Business Combination Agreement). Under certain specified circumstances in which the Business Combination Agreement is terminated, we would be required to pay to Transocean a termination fee equal to $173.0 million.

Summary of Significant Accounting Policies

Please refer to "Note 1. Description of the Business and Summary of Significant Accounting Policies" of our Consolidated Financial Statements from our Annual Report for the discussion of our significant accounting policies. Certain previously reported amounts have been reclassified to conform to the current year presentation.

New Accounting Pronouncements

Accounting Pronouncements to be Adopted

Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures - In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses ("Update 2024-03"), which requires companies to disclose additional information for certain relevant expense categories in the Statements of Operations and within the notes to the financial statements. Update 2024-03 is effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted and can be applied either prospectively to financial statements issued for reporting periods after the effective date, or retrospectively to prior periods which are presented in the financial statements. We are currently assessing the impact of the requirements on our condensed consolidated financial statements and disclosures, but do not expect the adoption of Update 2024-03 to result in a change in recognition or measurement of expenses within our consolidated financial statements.