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Inventories (Tables)
12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventories Inventories consisted of the following (in millions):
20222021
Materials, spares and supplies
$599 $624 
Work-in-process2,297 2,163 
Finished goods192 194 
Total inventories$3,088 $2,981