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Summary of Balance Sheet Data (Tables)
9 Months Ended
Sep. 30, 2021
Statement of Financial Position [Abstract]  
Schedule of Inventory, Current The following schedule presents a summary of inventories by major class:
September 30, 2021December 31, 2020
LIFONon-LIFOTotalLIFONon-LIFOTotal
Raw materials$141 $342 $483 $131 $263 $394 
Work in process143 91 234 103 86 189 
Finished goods545 776 1,321 453 749 1,202 
Supplies and other 276 276 — 263 263 
829 1,485 2,314 687 1,361 2,048 
Excess of FIFO or weighted-average cost over
  LIFO cost
(216) (216)(145)— (145)
Total$613 $1,485 $2,098 $542 $1,361 $1,903 
Property, Plant and Equipment The following schedule presents a summary of property, plant and equipment, net:
September 30, 2021December 31, 2020
Land$169 $174 
Buildings2,959 2,932 
Machinery and equipment14,514 14,382 
Construction in progress700 845 
18,342 18,333 
Less accumulated depreciation(10,378)(10,291)
Total$7,964 $8,042