Segment Information (Total Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Total assets	$ 5,496.8	$ 6,492.3	$ 7,382.5
Latin America [Member]
Total assets	2,033.0	2,432.7	2,713.3
Europe Middle East & Africa [Member]
Total assets	1,170.6	1,370.9	1,380.2
North America [Member]
Total assets	429.9	519.5	635.9
Asia Pacific [Member]
Total assets	390.8	441.7	537.7
Total from operations [Member]
Total assets	4,024.3	4,764.8	5,267.1
Discontinued Operations [Member]
Total assets		0	190.6
Global and other [Member]
Total assets	$ 1,472.5	$ 1,727.5	$ 1,924.8