Basis of Presentation, New Accounting Standards, and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2022
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 fuel services company, principally engaged in the distribution of fuel and related products and services in the aviation, land and marine transportation industries. In recent years, we have expanded our land product and service offerings to include energy advisory services and supply fulfillment for natural gas and power to commercial, industrial and government customers. Our intention is to become a leading global energy management company offering a full suite of energy advisory, management and fulfillment services, technology solutions, payment management solutions, as well as sustainability products and services across the energy product spectrum. We will continue to focus on enhancing the portfolio of products and services we provide based on changes in customer demand, including increasing our sustainability offerings and renewable energy solutions in light of the continued global focus on climate change and the related impacts. 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 generally accepted accounting principles 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 2021 Annual Report on Form 10-K ("2021 10-K Report"). All intercompany transactions among our businesses have been eliminated.
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	New Accounting Standards Adoption of New Accounting Standards During 2022, there have been no accounting standards that, upon adoption, had a material impact on the Company's unaudited Condensed Consolidated Financial Statements or processes. Accounting Standards Issued but Not Yet Adopted Disclosure of Supplier Finance Program Obligations. In September 2022, 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. Early adoption is permitted. 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. We are currently evaluating the provisions in the amendment to conclude if they will have a material impact on the Company's Consolidated Financial Statements or processes. Other recently issued accounting standards not yet adopted by us are not expected, upon adoption, to have a material impact on the Company’s Consolidated Financial Statements or processes.