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Goodwill (Details)	3 Months Ended			9 Months Ended
	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($) product	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Goodwill [Line Items]
Goodwill	$ 0			$ 0
Impairment of goodwill	$ 0	$ 41,000,000	$ 0	$ 41,000,000	$ 0
Nitrogen Fertilizer
Goodwill [Line Items]
Goodwill						$ 41,000,000
Number of primary products experiencing significant pricing declines | product		2

X

- Definition

Goodwill, Impairment, Number Of Primary Products Experiencing Significant Pricing Declines

+ References

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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