Cover Page - USD ($)
$ in Billions

12 Months Ended

Dec. 31, 2019

Jan. 31, 2020

Jun. 28, 2019

Cover page.

Document Type

10-K

Document Annual Report

true

Document Transition Report

false

Document Period End Date

Dec. 31, 2019

Entity File Number

1-9210

Entity Registrant Name

OCCIDENTAL PETROLEUM CORP /DE/

Amendment Flag

false

Document Fiscal Year Focus

2019

Document Fiscal Period Focus

FY

Current Fiscal Year End Date

--12-31

Entity Incorporation, State or Country Code

DE

Entity Tax Identification Number

95-4035997

Entity Address, Address Line One

5 Greenway Plaza, Suite 110

Entity Address, City or Town

Houston,

Entity Address, State or Province

TX

Entity Address, Postal Zip Code

77046

City Area Code

(713)

Local Phone Number

215-7000

Entity Central Index Key

0000797468

Title of 12(b) Security

Common Stock, $0.20 par value

Trading Symbol

OXY

Security Exchange Name

NYSE

Entity Well-known Seasoned Issuer

Yes

Entity Voluntary Filers

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Large Accelerated Filer

Entity Emerging Growth Company

false

Entity Small Business

false

Entity Shell Company

false

Entity Public Float

$ 45.0

Entity Common Stock, Shares Outstanding

895,224,961

Documents Incorporated by Reference

Portions of the registrant’s definitive Proxy Statement, relating to its 2020 Annual Meeting of Stockholders, are incorporated by reference into Part III of this Form 10-K.