CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 59,043.1	$ 31,337.0	$ 20,358.3
Cost of revenue	57,954.1	30,548.8	19,506.5
Gross profit	1,089.1	788.2	851.8
Operating expenses:
Compensation and employee benefits	507.4	386.7	366.9
General and administrative	308.7	247.6	311.1
Asset impairments	0.6	4.7	25.6
Restructuring charges	(0.8)	6.6	10.3
Total operating expenses	815.8	645.6	714.0
Income from operations	273.2	142.6	137.9
Non-operating income (expenses), net:
Interest expense and other financing costs, net	(110.6)	(40.2)	(44.9)
Other income (expense), net	(17.5)	(2.3)	68.8
Total non-operating income (expense), net	(128.1)	(42.5)	23.9
Income (loss) before income taxes	145.1	100.0	161.7
Provision for income taxes	29.2	25.8	52.1
Net income (loss) including noncontrolling interest	115.9	74.2	109.6
Net income (loss) attributable to noncontrolling interest	1.7	0.5	0.1
Net income (loss) attributable to World Fuel	$ 114.1	$ 73.7	$ 109.6
Basic earnings (loss) per common share (in dollars per share)	$ 1.83	$ 1.17	$ 1.72
Basic weighted average common shares (in shares)	62.3	62.9	63.7
Diluted earnings (loss) per common share (in dollars per share)	$ 1.82	$ 1.16	$ 1.71
Diluted weighted average common shares (in shares)	62.7	63.3	64.0
Comprehensive income:
Net income (loss) including noncontrolling interest	$ 115.9	$ 74.2	$ 109.6
Other comprehensive income (loss):
Foreign currency translation adjustments	(45.5)	(13.7)	13.8
Cash flow hedges, net of income tax expense (benefit) of $7.6, $3.3, and $0.0 for 2022, 2021, and 2020, respectively	21.6	9.6	(0.1)
Total other comprehensive income (loss)	(24.0)	(4.1)	13.7
Comprehensive income (loss) including noncontrolling interest	91.9	70.1	123.3
Comprehensive income (loss) attributable to noncontrolling interest	1.7	0.5	0.0
Comprehensive income (loss) attributable to World Fuel	$ 90.2	$ 69.6	$ 123.3