v3.19.3
Document and Entity Information
Oct. 28, 2019
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0000949039
Document Type 8-K
Document Period End Date Oct. 28, 2019
Entity Registrant Name Diamond Offshore Drilling, Inc.
Entity Incorporation State Country Code DE
Entity File Number 1-13926
Entity Tax Identification Number 76-0321760
Entity Address, Address Line One 15415 Katy Freeway
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77094
City Area Code (281)
Local Phone Number 492-5300
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.01 par value per share
Trading Symbol DO
Security Exchange Name NYSE
Entity Emerging Growth Company false