Revenue from Contracts with Customers Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Other revenues (excluded from ASC 606)	$ 242.3	$ 93.5
Revenue	8,015.2	8,678.8
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	1,181.7	1,078.1
EMEA
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	1,868.3	2,014.3
LATAM
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	924.5	876.0
North America
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	3,798.3	4,616.9
Aviation
Disaggregation of Revenue [Line Items]
Revenue	3,764.1	4,252.7
Aviation | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	252.3	364.4
Aviation | EMEA
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	638.9	719.1
Aviation | LATAM
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	560.7	545.7
Aviation | North America
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	2,126.8	2,648.0
Land
Disaggregation of Revenue [Line Items]
Revenue	2,106.0	2,493.6
Land | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	4.7	4.8
Land | EMEA
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	618.2	640.5
Land | LATAM
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	130.4	138.9
Land | North America
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	1,329.4	1,634.4
Marine
Disaggregation of Revenue [Line Items]
Revenue	2,145.0	1,932.5
Marine | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	924.6	708.9
Marine | EMEA
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	611.2	654.7
Marine | LATAM
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	233.3	191.4
Marine | North America
Disaggregation of Revenue [Line Items]
Revenue, ASC 606	$ 342.1	$ 334.5