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Goodwill and Other Intangible Assets
 12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
7. Goodwill and Other Intangible Assets
Goodwill
The gross carrying amounts and changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 are as follows:
 
 
Olefins Segment
 
Vinyls Segment
 
Total
Balance at December 31, 2016
 
$
30

 
$
917

 
$
947

Measurement period adjustment
 
—

 
55

 
55

Effects of changes in foreign exchange rates
 
—

 
10

 
10

Balance at December 31, 2017
 
30

 
982

 
1,012

Effects of changes in foreign exchange rates
 
—

 
(10
)
 
(10
)
Balance at December 31, 2018
 
$
30

 
$
972

 
$
1,002


Olefins Segment Goodwill
The Company performed its annual impairment analysis for the Olefins segment, the reporting unit assessed, during the fourth 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 Olefins reporting unit. Based upon this assessment, the Company determined that it is more likely than not that the fair value of the Olefins reporting unit 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, current and projected financial performance, changes in management or strategy, and market capitalization.
Vinyls Segment Goodwill
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, current and projected financial performance, changes in management or strategy, and market capitalization.
Intangible Assets
Intangible assets consisted of the following at December 31:
 
 
2018
 
2017
 
Weighted
Average
Life
 
 
Cost
 
Accumulated
Amortization
 
Net
 
Cost
 
Accumulated
Amortization
 
Net
 
Customer relationships
 
$
745

 
$
(220
)
 
$
525

 
$
754

 
$
(138
)
 
$
616

 
10
Other intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Licenses and intellectual property
 
122

 
(65
)
 
57

 
124

 
(55
)
 
69

 
13
Trademarks
 
90

 
(26
)
 
64

 
93

 
(17
)
 
76

 
13
Other
 
35

 
(22
)
 
13

 
31

 
(15
)
 
16

 
11
Total other intangible assets
 
$
247

 
$
(113
)
 
$
134

 
$
248

 
$
(87
)
 
$
161

 
 

Scheduled amortization of intangible assets for the next five years is as follows: $106, $103, $101, $80 and $44 in 2019, 2020, 2021, 2022 and 2023, respectively.