Goodwill (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 2,024
Goodwill acquired during the period	119
Goodwill, Purchase Accounting Adjustments	(1)
Effects of changes in foreign exchange rates	(2)
Ending Balance	2,140
Olefins
Goodwill [Roll Forward]
Beginning Balance	1,122
Goodwill acquired during the period	0
Goodwill, Purchase Accounting Adjustments	(1)
Effects of changes in foreign exchange rates	0
Ending Balance	1,121
Vinyls
Goodwill [Roll Forward]
Beginning Balance	902
Goodwill acquired during the period	119
Goodwill, Purchase Accounting Adjustments	0
Effects of changes in foreign exchange rates	(2)
Ending Balance	$ 1,019

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
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-Section 55
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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