XML 46 R37.htm IDEA: XBRL DOCUMENT v3.22.1
Note 3 - Operations and Segmentation (Details Textual)
$ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Number of Reportable Segments 1  
Revenue from Contract with Customer, Excluding Assessed Tax, Total $ 5,860 $ 5,001
MEXICO    
Revenue from Contract with Customer, Excluding Assessed Tax, Total $ 654 $ 565