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Cover Page Document
Nov. 19, 2021
Sep. 07, 2021
Cover [Abstract]    
Entity Central Index Key   0000789460
Entity Registrant Name   WORLD FUEL SERVICES CORPORATION
Title of 12(b) Security   Common Stock, par value $0.01 per share
Entity Address, Address Line One   9800 N.W. 41st Street,
Entity Incorporation, State or Country Code   FL
Document Type   8-K
Document Period End Date Dec. 03, 2021  
Entity File Number   1-9533
Entity Tax Identification Number   59-2459427
Entity Address, City or Town   Miami,
Entity Address, State or Province   FL
Entity Address, Postal Zip Code   33178
Trading Symbol   INT
Security Exchange Name   NYSE
City Area Code   305
Local Phone Number   428-8000
Written Communications   false
Soliciting Material   false
Pre-commencement Tender Offer   false
Pre-commencement Issuer Tender Offer   false
Amendment Flag   false
Entity Emerging Growth Company   false