Disclosures of environmental loss contingencies by categories of sites and reserve balances by site categories. Does not include loss contingencies that are not environmental in nature. This element may be used for a listing and details of all of an entity's environmental loss disclosures about categories of sites.

No definition available.

Name:	oxy_ScheduleOfEnvironmentalLossContingenciesByCategoryOfSiteTableTextBlock
Namespace Prefix:	oxy_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration