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Accounts Receivable (Notes)
 3 Months Ended
Mar. 31, 2022
Accounts Receivable, after Allowance for Credit Loss [Abstract]  
Accounts Receivable Accounts Receivable
Accounts receivable consist of the following:
March 31,
2022		December 31,
2021
Trade customers$2,299 $1,764 
Related parties3 3 
Allowance for credit losses(33)(26)
2,269 1,741 
Federal and state taxes7 62 
Other76 65 
Accounts receivable, net$2,352 $1,868