Segment Information (Capital Expenditures) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total capital expenditures	$ 94.9	$ 97.3	$ 93.0
Operating Segments
Segment Reporting Information [Line Items]
Total capital expenditures	76.5	80.0	74.0
Operating Segments | Europe, Middle East & Africa
Segment Reporting Information [Line Items]
Total capital expenditures	37.0	29.4	18.8
Operating Segments | South Latin America
Segment Reporting Information [Line Items]
Total capital expenditures	27.5	35.4	39.2
Operating Segments | North Latin America
Segment Reporting Information [Line Items]
Total capital expenditures	9.1	12.9	11.7
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Total capital expenditures	2.9	2.3	4.3
Other operating segments and business activities
Segment Reporting Information [Line Items]
Total capital expenditures	0.0	0.0	0.2
Global
Segment Reporting Information [Line Items]
Total capital expenditures	$ 18.4	$ 17.3	$ 18.8