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Inventories (Tables)
12 Months Ended
Dec. 31, 2019
Inventory, Net [Abstract]  
Schedule of Inventory, Current [Table Text Block]

(In millions)
December 31, 2019
December 31, 2018
Finished products
$
2,684

$
3,022

Semi-finished products
1,850

1,821

Raw materials and supplies
498

467

Total inventories
$
5,032

$
5,310