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Divestitures - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended
	Jul. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Nov. 15, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stranded divestitures costs		$ 0	$ 12
Composites Segment and the Intermediates and Solvents Facility [Member] | INEOS Enterprises [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transaction value in sale of business				$ 1,100
Adjusted purchase price from additional proposed changes to sale agreement	$ 1,015
Transition service fee income recognized		$ 3

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- Definition

Proceeds from divestiture of businesses adjusted value.

+ References

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- Definition

Represents the amount of costs that were previously allocated to the Composites segment and Marl facility but have been reclassified to the Unallocated and Other Segment.

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- Definition

Transition service fee income.

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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