Segment Reporting Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting
Net sales	$ 1,005.7	$ 1,188.5	$ 1,705.7	$ 2,004.5
Maximum percentage of sales accounted for by a single customer (as a percent)			10.00%
Canada [Member]
Segment Reporting
Net sales	444.9	516.5	$ 758.4	863.6
Europe [Member]
Segment Reporting
Net sales	524.8	629.4	882.7	1,067.0
MCI [Member]
Segment Reporting
Net sales	37.2	43.7	66.3	75.9
Corporate [Member]
Segment Reporting
Net sales	0.1	0.4	0.5	0.7
Intersegment sales elimination
Segment Reporting
Net sales	$ (1.3)	$ (1.5)	$ (2.2)	$ (2.7)