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Business Segments - Income Statement Items (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue:
Total revenue	$ 10,980.7	$ 17,122.1	$ 23,462.3	$ 29,504.1
Income from operations:
Total income from operations	75.5	52.8	140.1	94.1
Corporate overhead - unallocated
Income from operations:
Total income from operations	(27.0)	(26.0)	(53.4)	(48.8)
Aviation segment
Revenue:
Total revenue	5,194.4	7,843.5	11,417.2	12,854.0
Aviation segment | Operating Segments
Income from operations:
Total income from operations	58.1	(6.9)	92.1	0.7
Land segment
Revenue:
Total revenue	3,642.3	5,431.8	7,533.5	9,812.6
Land segment | Operating Segments
Income from operations:
Total income from operations	24.6	33.0	50.8	66.3
Marine segment
Revenue:
Total revenue	2,144.0	3,846.8	4,511.6	6,837.5
Marine segment | Operating Segments
Income from operations:
Total income from operations	$ 19.8	$ 52.7	$ 50.6	$ 75.9

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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