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Investments (Tables)
12 Months Ended
Dec. 31, 2021
Investments [Abstract]  
Schedule of investments
Investments consisted of the following as of December 31, 2021 and 2020:

December 31,
20212020
Equity-method investments$112 $294 
Other investments91 19 
Total investments$203 $313 
Schedule of Variable Interest Entities
As the Company has determined that SPE Building 1 and SPE Building 2 (collectively, the "SPEs") are VIEs of which the Company became the primary beneficiary upon the effectiveness of the arrangements in July 2018 and April 2020, respectively, the Company has consolidated the assets and liabilities of the SPEs in its consolidated balance sheets as of December 31, 2021 and 2020 as follows.

December 31,
20212020
Assets
Current assets$$
Property, plant and equipment$635 $490 
Liabilities
Current liabilities$57 $28 
Other long-term liabilities$599 $470