Document and Entity Information Document - shares	6 Months Ended
	Jun. 30, 2023	Jul. 21, 2023
Document Information [Line Items]
Document Fiscal Year Focus	2023
Amendment Flag	false
Document Type	10-Q
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000073756
Entity Interactive Data Current	Yes
Document Transition Report	false
Document Period End Date	Jun. 30, 2023
Document Quarterly Report	true
Entity Tax Identification Number	95-2628227
Entity Current Reporting Status	Yes
Entity Registrant Name	OCEANEERING INTERNATIONAL INC
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		100,779,554
Entity Listings [Line Items]
Security Exchange Name	NYSE
Trading Symbol	OII
Title of 12(b) Security	Common stock, par value $0.25 per share
Entity Information [Line Items]
Entity Filer Category	Large Accelerated Filer
Entity File Number	1-10945
Entity Incorporation, State or Country Code	DE
Entity Addresses [Line Items]
Local Phone Number	329-4500
Entity Address, Address Line One	5875 North Sam Houston Parkway West, Suite 400
Entity Address, State or Province	TX
Entity Address, City or Town	Houston,
Entity Address, Postal Zip Code	77086
City Area Code	713