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Inventories (Tables)
 9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory [Table Text Block]
Inventories were as follows (in millions):
 December 31,
2019		September 30,
2020
Raw materials, work-in-process, and supplies$4,402 $4,401 
Finished products6,384 6,182 
Total inventories$10,786 $10,583