Inventories

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following:

Millions of dollars	March 31, 2020		December 31, 2019
Finished products and parts	$	1,895	$	1,865
Raw materials and supplies	1,176		1,147
Work in process	149		127
Total	$	3,220	$	3,139

All amounts in the table above are reported net of obsolescence reserves of $139 million as of March 31, 2020 and $149 million as of December 31, 2019.