Segment Information (Total Revenue and Operating Profit) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Total revenue	$ 2,341.0	$ 2,138.2	$ 2,188.6	$ 2,183.6	$ 2,667.2	$ 2,322.9	$ 2,508.9	$ 2,456.0	$ 8,851.4	$ 9,955.0	$ 10,561.4
Operating Profit (Loss)									400.1	427.2	525.0
Latin America [Member]
Total revenue									4,239.5	4,840.5	4,993.7
Operating Profit (Loss)									279.8	478.6	443.9
Europe Middle East & Africa [Member]
Total revenue									2,705.8	2,898.4	2,914.2
Operating Profit (Loss)									300.9	406.7	312.8
North America [Member]
Total revenue									1,203.4	1,458.2	1,751.1
Operating Profit (Loss)									(72.5)	(60.1)	(4.7)
Asia Pacific [Member]
Total revenue									702.7	757.9	902.4
Operating Profit (Loss)									20.9	(12.1)	5.1
Total from operations [Member]
Total revenue									8,851.4	9,955.0	10,561.4
Operating Profit (Loss)									529.1	813.1	757.1
Global and other [Member]
Total revenue									0	0	0
Operating Profit (Loss)									$ (129.0)	$ (385.9)	$ (232.1)