CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 17,122.1	$ 7,085.5	$ 29,504.1	$ 13,043.4
Cost of revenue	16,868.7	6,901.6	29,019.8	12,667.9
Gross profit	253.4	183.9	484.4	375.5
Operating expenses:
Compensation and employee benefits	118.3	87.9	233.2	180.3
General and administrative	82.3	57.4	157.1	116.8
Asset impairments	0.0	4.7	0.0	4.7
Restructuring charges	0.0	3.0	0.0	5.1
Total operating expenses	200.6	153.0	390.3	306.9
Income from operations	52.8	30.9	94.1	68.6
Non-operating income (expenses), net:
Interest expense and other financing costs, net	(26.5)	(10.0)	(40.9)	(18.7)
Other income (expense), net	(4.0)	(1.4)	1.7	(2.6)
Total non-operating income (expense), net	(30.5)	(11.4)	(39.2)	(21.3)
Income (loss) before income taxes	22.3	19.6	54.9	47.2
Provision for income taxes	(2.5)	2.0	3.8	10.8
Net income (loss) including noncontrolling interest	24.8	17.6	51.1	36.4
Net income (loss) attributable to noncontrolling interest	0.4	(0.1)	0.4	(0.1)
Net income (loss) attributable to World Fuel	$ 24.4	$ 17.6	$ 50.7	$ 36.5
Basic earnings (loss) per common share (in dollars per share)	$ 0.39	$ 0.28	$ 0.81	$ 0.58
Basic weighted average common shares (in shares)	62.2	63.4	62.8	63.2
Diluted earnings (loss) per common share (in dollars per share)	$ 0.39	$ 0.28	$ 0.80	$ 0.57
Diluted weighted average common shares (in shares)	62.4	63.8	63.2	63.6
Comprehensive income:
Net income (loss) including noncontrolling interest	$ 24.8	$ 17.6	$ 51.1	$ 36.4
Other comprehensive income (loss):
Foreign currency translation adjustments	(35.7)	4.8	(45.1)	0.8
Cash flow hedges, net of income tax expense (benefit) of $9.8 and ($2.9) for the three months ended June 30, 2022 and 2021, respectively, and net of income tax expense (benefit) of $2.8 and $2.7 for the six months ended June 30, 2022 and 2021, respectively	27.1	(8.6)	7.8	7.8
Total other comprehensive income (loss)	(8.7)	(3.8)	(37.3)	8.5
Comprehensive income (loss) including noncontrolling interest	16.1	13.7	13.7	44.9
Comprehensive income (loss) attributable to noncontrolling interest	0.4	(0.1)	0.4	(0.1)
Comprehensive income (loss) attributable to World Fuel	$ 15.7	$ 13.8	$ 13.4	$ 45.0