Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Inventory (Details)

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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Inventory (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure Text Block [Abstract]    
Finished and semi-finished goods $ 2,125 $ 114
Work-in-process 0 69
Raw materials 1,431 9
Total product inventories 3,556 192
Manufacturing supplies and critical spares 272 125
Inventories 3,828 317
Excess of Replacement or Current Costs over Stated LIFO Value 104 101
Effect of LIFO Inventory Liquidation on Income 30  
Effect of LIFO Inventory Increment on Financial Position   34
Allowance for Obsolete and Surplus Items $ 13 $ 13