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Supplemental Balance Sheet Data - Inventory (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Raw materials $ 483 $ 394
Work in process 234 189
Finished goods 1,321 1,202
Supplies and other 276 263
Inventory, Gross 2,314 2,048
Inventory, LIFO Reserve (216) (145)
Total 2,098 1,903
LIFO    
Raw materials 141 131
Work in process 143 103
Finished goods 545 453
Supplies and other 0 0
Inventory, Gross 829 687
Inventory, LIFO Reserve (216) (145)
Total 613 542
Non-LIFO    
Raw materials 342 263
Work in process 91 86
Finished goods 776 749
Supplies and other 276 263
Inventory, Gross 1,485 1,361
Inventory, LIFO Reserve 0 0
Total $ 1,485 $ 1,361