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REVENUE RECOGNITION Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue [Table Text Block]
The following table presents net operating revenues disaggregated between the United States and International and further by line of business (in millions):
United StatesInternationalTotal
Year Ended December 31, 2020
Concentrate operations$5,443 $13,139 $18,582 
Finished product operations5,838 8,594 14,432 
Total $11,281 $21,733 $33,014 
Year Ended December 31, 2019
Concentrate operations$5,252 $15,247 $20,499 
Finished product operations6,463 10,304 16,767 
Total $11,715 $25,551 $37,266 
Year Ended December 31, 2018
Concentrate operations$4,571 $15,323 $19,894 
Finished product operations6,773 7,633 14,406 
Total$11,344 $22,956 $34,300