Environmental Liabilities and Expenditures (Tables)

6 Months Ended

Jun. 30, 2019

Environmental Remediation Obligations [Abstract]

Schedule of current and non-current environmental remediation reserves by categories of sites

	Number of Sites	Reserve Balance (in millions)
NPL sites	35	$	452
Third-party sites	68	190
Occidental-operated sites	14	112
Closed or non-operated Occidental sites	29	130
Total	146	$	884