United Kingdom Operations Restructuring	9 Months Ended
United Kingdom Operations Restructuring	Sep. 30, 2023
Restructuring and Related Activities [Abstract]
United Kingdom Operations Restructuring	United Kingdom Operations Restructuring In the second quarter of 2022, we approved and announced our proposed plan to restructure our U.K. operations, including the planned permanent closure of the Ince facility, which had been idled since September 2021, and optimization of the remaining manufacturing operations at our Billingham facility. Pursuant to our proposed plan to restructure our U.K. operations and dispose of the Ince facility assets before we originally intended, we concluded that an evaluation of our long-lived assets and an impairment test was required. Our assessment then identified the U.K. asset groups as U.K. Ammonia, U.K. AN and U.K. Other, comprising our ongoing U.K. operations, and Ince, U.K. In response to this impairment indicator, we compared the undiscounted cash flows expected to result from the use and eventual disposition of the Ince, U.K. asset group to its carrying amount and concluded the carrying amount was not recoverable and should be adjusted to its fair value. As a result, in the second quarter of 2022, we recorded total charges of $162 million related to the Ince facility as follows: •asset impairment charges of $152 million consisting of the following: ◦an impairment charge of $135 million related to property, plant and equipment that is planned for abandonment at the Ince facility, including a liability of approximately $9 million for the costs of certain asset retirement activities related to the Ince site; ◦an intangible asset impairment charge of $8 million related to trade names; and ◦an impairment charge of $9 million related to the write-down of spare parts and certain raw materials at the Ince facility; and •a charge for post-employment benefits totaling $10 million, which is included in the U.K. operations restructuring line item in our consolidated statements of operations, related to contractual and statutory obligations due to employees whose employment would be terminated in the proposed plan. In August 2022, the final restructuring plan for our U.K. operations was approved, and decommissioning activities at our Ince facility were initiated. As a result, in the third quarter of 2022, we incurred additional charges related to our U.K. restructuring of $8 million, primarily related to one-time termination benefits, which are included in the U.K. operations restructuring line item in our consolidated statement of operations. As of June 30, 2023, the decommissioning of our Ince facility and other approved restructuring actions had been completed. In the third quarter of 2022, the United Kingdom continued to experience extremely high and volatile natural gas prices. Russian natural gas pipeline flows to Europe via the Nord Stream 1 pipeline ceased, causing the United Kingdom to experience unprecedented natural gas prices. In addition, the European Union announced a desire to cap the price that Europe would pay Russia for natural gas deliveries, further contributing to the uncertainty in European energy markets. Given these factors and the lack of a corresponding increase in global nitrogen product market prices, in September 2022, we idled ammonia production at our Billingham complex. As a result, we concluded that an additional impairment test was triggered for the asset groups that comprise the continuing U.K. operations. The results of our impairment test indicated that the carrying values for our U.K. Ammonia and U.K. AN asset groups exceeded the undiscounted estimated future cash flows. As a result, we recognized asset impairment charges of $87 million, primarily related to property, plant and equipment and definite-lived intangible assets, which are included in the U.K. long-lived and intangible asset impairment line item in our consolidated statement of operations. In July 2023, we approved and announced our proposed plan to permanently close the Billingham ammonia plant, and, in September 2023, the final plan was approved. As a result, in the third quarter of 2023, we recognized total charges of $5 million consisting primarily of the recognition of an asset retirement obligation and post-employment benefits related to contractual and statutory obligations due to employees whose employment would be terminated.