General (Policies)	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Cash Equivalents and Restricted Cash Equivalents	Occidental considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents or restricted cash equivalents.
Revenue	Revenue from customers is recognized when obligations under the terms of a contract with our customers are satisfied; this generally occurs with the delivery of oil, NGL, gas, chemicals or services, such as transportation.