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Equity Method Investment (Tables)
12 Months Ended
Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]  
Summary of Unaudited Income Statement Information
Certain summarized Income Statement information of Zenuity is shown below (dollars in millions):
 Year Ended December 31
201920182017
Net sales$ $ $ 
Gross profit—  —  —  
Operating loss(138) (125) (61) 
Loss before income taxes(138) (125) (61) 
Net loss$(139) $(125) $(61)