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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following:
December 3120212020
Work in process$3,654 $3,990 
Raw materials1,651 1,712 
Finished goods22 30 
Pre-owned aircraft13 13 
Total inventories$5,340 $5,745