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Interest Income and Other Non-Operating Income (Tables)
12 Months Ended
Dec. 31, 2021
Other Income and Expenses [Abstract]  
Schedule of Interest Income and Other Non-Operating Income, net
Years Ended December 31,
202120202019
Non-service pension and OPEB income$1,909 $1,095 $797 
Interest income146 241 429 
Licensing agreements income195 211 165 
Revaluation of investments571 265 80 
Other220 73 (2)
Total interest income and other non-operating income, net$3,041 $1,885 $1,469