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Business Segments - Income Statement Items (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue:
Total revenue	$ 12,245.3	$ 15,661.3	$ 35,707.6	$ 45,165.4
Income from operations:
Total income from operations	73.3	100.3	213.3	194.4
Corporate overhead - unallocated
Income from operations:
Total income from operations	(29.5)	(27.9)	(83.0)	(76.6)
Aviation segment
Revenue:
Total revenue	5,983.5	7,262.0	17,400.8	20,116.0
Aviation segment | Operating Segments
Income from operations:
Total income from operations	58.6	57.9	150.7	58.5
Land segment
Revenue:
Total revenue	3,983.5	5,013.9	11,517.1	14,826.6
Land segment | Operating Segments
Income from operations:
Total income from operations	31.8	22.2	82.6	88.5
Marine segment
Revenue:
Total revenue	2,278.2	3,385.4	6,789.8	10,222.9
Marine segment | Operating Segments
Income from operations:
Total income from operations	$ 12.4	$ 48.1	$ 63.0	$ 124.0

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

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