Goodwill (Notes)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Disclosure [Text Block]

Goodwill

The gross carrying amounts and changes in the carrying amount of goodwill for the nine months ended September 30, 2018 were as follows:

	Olefins Segment		Vinyls Segment			Total
Balances at December 31, 2017	$	30	$	982		$	1,012
Effects of changes in foreign exchange rates	—		(4		)	(4		)
Balances at September 30, 2018	$	30	$	978		$	1,008

The Company performed its annual impairment analysis for the Vinyls reporting units during the second quarter of 2018. The Company elected to perform a qualitative assessment (commonly known as "step zero") for the purposes of its annual goodwill impairment analysis for the Vinyls reporting units. Based upon this assessment, the Company determined that it is more likely than not that the fair value of each of the Vinyls reporting units exceeds its carrying value. Factors considered in the qualitative assessment included macroeconomic conditions, industry and market considerations, cost factors related to raw materials and labor, overall financial performance (both current and projected), changes in management or strategy, and market capitalization.