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Cover
Aug. 07, 2023
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 07, 2023
Entity File Number 001-16129
Entity Registrant Name FLUOR CORPORATION
Entity Central Index Key 0001124198
Entity Tax Identification Number 33-0927079
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 6700 Las Colinas Blvd.
Entity Address, City or Town Irving
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75039
City Area Code 469
Local Phone Number 398-7000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $.01 par value per share 
Trading Symbol FLR
Security Exchange Name NYSE
Entity Emerging Growth Company false