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Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Components of Intangible Assets
December 31, 2020December 31, 2019
Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
Technology and intellectual property$762 $542 $220 $734 $533 $201 
Brands4,300 1,444 2,856 4,298 1,285 3,013 
Dealer network, customer relationships and other981 737 244 966 702 264 
Total intangible assets$6,043 $2,723 $3,320 $5,998 $2,520 $3,478