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Inventories (Tables)
6 Months Ended
Jun. 30, 2022
Inventory Disclosure [Abstract]  
Components of Inventories
June 30, 2022December 31, 2021
Total productive material, supplies and work in process$10,698 $8,240 
Finished product, including service parts6,161 4,748 
Total inventories$16,859 $12,988