Segment Information (Total Revenue and Operating Profit) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Total revenue	$ 1,607.3	$ 1,436.2	$ 1,564.9	$ 1,552.1	$ 2,014.1	$ 1,861.5	$ 1,884.5	$ 1,887.9	$ 6,160.5	$ 7,648.0	$ 8,496.8
Operating Profit (Loss)									165.0	434.3	539.8
Latin America [Member]
Total revenue									3,260.4	4,239.5	4,840.5
Operating Profit (Loss)									103.1	279.8	478.6
Europe Middle East & Africa [Member]
Total revenue									2,272.3	2,705.8	2,898.4
Operating Profit (Loss)									217.1	300.9	406.7
Asia Pacific [Member]
Total revenue									627.8	702.7	757.9
Operating Profit (Loss)									35.3	20.9	(12.1)
Total from operations [Member]
Total revenue									6,160.5	7,648.0	8,496.8
Operating Profit (Loss)									355.5	601.6	873.2
Global and other [Member]
Total revenue									0.0	0.0	0.0
Operating Profit (Loss)									$ (190.5)	$ (167.3)	$ (333.4)