Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 15— Commitments and Contingencies Tax matters Subsequent to our filing of an Application for Tentative Refund with the Internal Revenue Service (“IRS”) under the CARES Act in the months of April and August 2020, the IRS informed us that it would be conducting a limited scope examination of the taxable years ended December 31, 2012, 2013, 2014, 2018 and 2019. In June 2021, the IRS completed its limited scope examination and did not propose any adjustments to the taxable years ended December 31, 2012, 2013, 2014, 2018 and 2019. In September 2021, the Congressional Joint Committee approved our remaining outstanding CARES Act refund of $15.0 million. We expect to receive this refund plus interest in the last quarter of 2021. In the first quarter of 2020, we filed a foreign tax credit refund claim for taxable year 2009. In June 2021, the IRS completed its audit of taxable year 2009 in relation to our refund claim. In August 2021, we received the foreign tax credit refund of $24.5 million plus interest. No other taxable years are currently under audit in the US. We believe that we have accurately reported all amounts in our returns. Audit claims of approximately $632.9 million attributable to income and other business taxes were assessed against Noble entities in Mexico related to tax years 2007, 2009 and 2010, in Australia related to tax years 2013 to 2016, in Guyana related to tax years 2019 and 2020, in Saudi Arabia related to tax years 2015 to 2019 and against Pacific Drilling entities in Nigeria related to tax years 2010 to 2018. We intend to vigorously defend our reported positions and currently believe the ultimate resolution of the audit claims will not have a material adverse effect on our consolidated financial statements. We operate in a number of countries throughout the world and our tax returns filed in those jurisdictions are subject to review and examination by tax authorities within those jurisdictions. We recognize uncertain tax positions that we believe have a greater than 50 percent likelihood of being sustained upon challenge by a tax authority. We cannot predict or provide assurance as to the ultimate outcome of any existing or future assessments. Other contingencies Legacy Noble entered into agreements with certain of our executive officers. These agreements became effective upon a change of control of Noble (within the meaning set forth in the agreements) or a termination of employment in connection with or in anticipation of a change of control and were effective for three years thereafter. These agreements provided for compensation and certain other benefits under such circumstances. On the Effective Date of our emergence from the Chapter 11 Cases, the Legacy Noble agreements were superseded by new employment agreements with substantially similar terms except that the new agreements provide for certain severance benefits upon termination without cause or resignation for good reason. We are a defendant in certain claims and litigation arising out of operations in the ordinary course of business, including personal injury claims, the resolution of which, in the opinion of management, will not be material to our financial position, results of operations or cash flows. There is inherent risk in any litigation or dispute and no assurance can be given as to the outcome of these claims.