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Basis of Presentation (Details) - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reclassification out of inventory	$ (252)		$ (373)
Reclassification to other long-term assets	$ 375		$ 295
Reclassification Adjustment | Catalyst Inventory
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reclassification out of inventory		$ 17
Reclassification to other long-term assets		$ 17

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of noncurrent assets classified as other.

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