Basis of Presentation, New Accounting Standards, and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	World Fuel Services Corporation (the "Company") was incorporated in Florida in July 1984 and along with its consolidated subsidiaries is referred to collectively in this Quarterly Report on Form 10-Q ("10-Q Report") as "World Fuel," "we," "our" and "us." We are a leading global energy management company, offering a broad suite of energy advisory, management and fulfillment services, digital and other technology solutions, as well as sustainability products and services across the energy product spectrum. We are principally involved in providing energy procurement and related products and services to commercial and industrial customers in the aviation, land, and marine transportation industries. We have also expanded our product and service offerings to include energy advisory services, sustainability and renewable energy solutions, as well as supply fulfillment for natural gas and power. The Condensed Consolidated Financial Statements and related Notes include our parent company and all subsidiaries where we exercise control, and include the operations of acquired businesses after the completion of their acquisition. The decision of whether or not to consolidate an entity requires consideration of majority voting interests, as well as effective economic or other control over the entity. The Condensed Consolidated Financial Statements are prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP"), the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all the information and footnotes required by U.S. GAAP for complete financial statements. However, except as disclosed herein, there has been no material change in the information disclosed in the Notes included in our 2022 Annual Report on Form 10-K ("2022 10-K Report"). All intercompany transactions among our businesses have been eliminated. Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be representative of those for the full year. In our opinion, all adjustments necessary for a fair statement of the financial statements, which are of a normal and recurring nature, have been made for the interim periods reported. The information included in this 10-Q Report should be read in conjunction with the Consolidated Financial Statements and accompanying Notes included in our
Use of Estimates	Certain amounts in the Condensed Consolidated Financial Statements and accompanying Notes may not add due to rounding; however, all percentages have been calculated using unrounded amounts
Reclassifications	Certain prior period amounts have been reclassified to conform to the current presentation.
New Accounting Standards and Accounting Standards Issued but Not Yet Adopted	Adoption of New Accounting Standards Disclosure of Supplier Finance Program Obligations. In September 2022, Accounting Standards Update ("ASU") 2022-04 was issued to require the buyer in a supplier finance program to disclose the key terms of the program, outstanding confirmed amounts as of the end of the period, a rollforward of such amounts during each annual period, and a description of where in the financial statements outstanding amounts are presented. The amendments do not affect the recognition, measurement or financial statement presentation of supplier finance program obligations. The amendments are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The amendments should be applied retrospectively to each period in which a balance sheet is presented, except for the rollforward, which should be applied prospectively. Early adoption was permitted. The Company adopted ASU 2022-04 in the first quarter of 2023 and has included all relevant disclosures below. Supplier Finance Programs Under various supplier finance programs, we agree to pay counterparties engaged as paying agents the stated amount of confirmed invoices from our designated suppliers on the original maturity date of the invoices. Under certain of these arrangements, we may also pay fees for the supplier finance platform and related support. Accounting Standards Issued but Not Yet Adopted There are no recently issued accounting standards not yet adopted by us that are expected, upon adoption, to have a material impact on the Company’s Consolidated Financial Statements or processes.