Environmental Liabilities and Expenditures (Tables)

6 Months Ended

Jun. 30, 2022

Environmental Remediation Obligations [Abstract]

Schedule of Current and Non-Current Environmental Remediation Reserves by Categories of Sites

The following table presents Occidental’s current and non-current environmental remediation liabilities as of June 30, 2022. The current portion, $155 million, is included in accrued liabilities and the non-current portion, $918 million, in deferred credits and other liabilities-environmental remediation liabilities.

Occidental’s environmental remediation sites are grouped into four categories: sites listed or proposed for listing by the U.S. EPA on the CERCLA NPL and three categories of non-NPL sites—third-party sites, Occidental-operated sites and closed or non-operated Occidental sites.

millions, except number of sites	Number of Sites	Remediation Balance
NPL sites	30	$	449
Third-party sites	70	242
Occidental-operated sites	14	114
Closed or non-operated Occidental sites	53	268
Total	167	$	1,073