Inventories (Notes)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIES

All inventories are stated at the lower of cost or net realizable value. Cost of our inventories is determined by costing methods that approximate a first-in, first-out (“FIFO”) basis. Inventories at December 31 were as follows (in millions):

	2018		2019
Raw materials, work-in-process, and supplies	$	4,536	$	4,402
Finished products	6,684		6,384
Total inventories	$	11,220	$	10,786