v3.26.1
Cover
May 11, 2026
Document Information [Line Items]  
Document Type 8-K
Document Period End Date May 11, 2026
Registrant Name SEADRILL LIMITED
Entity Incorporation, State or Country Code D0
Entity File Number 001-39327
Entity Tax Identification Number 98-1834031
Entity Address, Address Line One 4425 Westway Park Blvd., Suite 170
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Country US
Entity Address, Postal Zip Code 77041
City Area Code 713
Local Phone Number 329-1150
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Shares, par value $0.01 per share
Trading Symbol SDRL
Security Exchange Name NYSE
Entity Emerging Growth Company false
Amendment Flag false
Central Index Key 0001737706
Former Address  
Document Information [Line Items]  
Entity Address, Address Line One 11025 Equity Dr., Ste. 150
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Country US
Entity Address, Postal Zip Code 77041