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Inventories (Tables)
6 Months Ended
Jul. 04, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following:
July 4, 2021December 31, 2020
Work in process$3,986 $3,990 
Raw materials1,587 1,712 
Finished goods28 30 
Pre-owned aircraft202 13 
Total inventories$5,803 $5,745