Supplemental Balance Sheet Data

3 Months Ended

Mar. 31, 2019

Statement of Financial Position [Abstract]

Additional Financial Information Disclosure

Supplemental Balance Sheet Data

The following schedule presents a summary of inventories by major class:

	March 31, 2019								December 31, 2018
	LIFO			Non-LIFO		Total			LIFO			Non-LIFO		Total
Raw materials	$	96		$	248	$	344		$	99		$	263	$	362
Work in process	119			93		212			120			94		214
Finished goods	494			725		1,219			461			692		1,153
Supplies and other	—			278		278			—			275		275
	709			1,344		2,053			680			1,324		2,004
Excess of FIFO or weighted-average cost over LIFO cost	(196		)	—		(196		)	(191		)	—		(191		)
Total	$	513		$	1,344	$	1,857		$	489		$	1,324	$	1,813

Inventories are valued at the lower of cost or net realizable value, determined on the FIFO or weighted-average cost methods, and at the lower of cost or market, determined on the LIFO cost method.

The following schedule presents a summary of property, plant and equipment, net:

	March 31, 2019			December 31, 2018
Land	$	168		$	169
Buildings	2,814			2,787
Machinery and equipment	14,194			14,059
Construction in progress	648			699
	17,824			17,714
Less accumulated depreciation	(10,685		)	(10,555		)
Total	$	7,139		$	7,159