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United Kingdom Energy Crisis and Impairment Charges	3 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
United Kingdom Energy Crisis and Impairment Charges	United Kingdom Energy Crisis and Impairment Charges During the third quarter of 2021, the United Kingdom began experiencing an energy crisis that included a substantial increase in the price of natural gas, which impacted our U.K. operations. In the first half of 2021, natural gas prices had increased to levels that were considered high compared to historical prices, and prices then more than doubled within the third quarter of 2021. On September 15, 2021, we announced the halt of operations at both our Ince and Billingham manufacturing facilities in the United Kingdom due to negative profitability driven by the high cost of natural gas. After certain agreements were finalized, our Billingham facility resumed operations. As of the filing of this report, production continues at our Billingham facility and continues to be idled at our Ince facility. In the second half of 2021, the U.K. energy crisis necessitated evaluations of the goodwill and long-lived assets, including definite-lived intangible assets, of our U.K. operations to determine if their fair value had declined to below their carrying value. Based on these analyses, we concluded that declines in fair value had occurred, and we recognized impairment charges of $521 million in 2021, consisting of long-lived and intangible asset impairment charges of $236 million and goodwill impairment charges of $285 million. As a result, we had no remaining goodwill related to our U.K. operations on our consolidated balance sheet as of December 31, 2021. During the first quarter of 2022, we concluded that the continued impacts of the U.K. energy crisis, including further increases and volatility in natural gas prices due in part to recent geopolitical events as a result of Russia’s invasion of Ukraine in February 2022, triggered an additional long-lived asset impairment test. The results of the interim impairment test indicated that no additional long-lived asset impairment existed as the undiscounted estimated future cash flows were in excess of the carrying values for each of the U.K. asset groups, consisting of U.K. Ammonia, U.K. AN and U.K. Other.

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- Definition

The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported.

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