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Supplemental Data (Summary of Inventories) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Inventory    
Raw materials $ 493 $ 394
Work in process 242 189
Finished goods 1,442 1,202
Supplies and other 280 263
Gross inventories 2,457 2,048
Excess of FIFO or weighted-average cost over LIFO cost (218) (145)
Total 2,239 1,903
LIFO    
Inventory    
Raw materials 141 131
Work in process 153 103
Finished goods 607 453
Supplies and other 0 0
Gross inventories 901 687
Excess of FIFO or weighted-average cost over LIFO cost (218) (145)
Total 683 542
Non- LIFO    
Inventory    
Raw materials 352 263
Work in process 89 86
Finished goods 835 749
Supplies and other 280 263
Gross inventories 1,556 1,361
Excess of FIFO or weighted-average cost over LIFO cost 0 0
Total $ 1,556 $ 1,361