Properties, Plants and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Properties, Plants and Equipment with the Associated Accumulated Depreciation and Amortization

The company’s investment in PP&E, with the associated accumulated depreciation and amortization (Accum. D&A), at December 31 was:

	Millions of Dollars
	2019				2018
	Gross PP&E		Accum. D&A	Net PP&E	Gross PP&E	Accum. D&A	Net PP&E
Midstream	$	11,221	2,391	8,830	9,663	2,100	7,563
Chemicals	—		—	—	—	—	—
Refining	23,692		10,336	13,356	22,640	9,531	13,109
Marketing and Specialties	1,847		959	888	1,671	926	745
Corporate and Other	1,311		599	712	1,223	622	601
	$	38,071	14,285	23,786	35,197	13,179	22,018