Segment Reporting Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting
Net sales	$ 986.2	$ 1,005.7	$ 1,643.4	$ 1,705.7
Maximum percentage of sales accounted for by a single customer (as a percent)			10.00%
Canada [Member]
Segment Reporting
Net sales	425.9	444.9	$ 693.9	758.4
Europe [Member]
Segment Reporting
Net sales	522.1	524.8	880.8	882.7
MCI [Member]
Segment Reporting
Net sales	39.2	37.2	70.2	66.3
Corporate [Member]
Segment Reporting
Net sales	0.2	0.1	0.6	0.5
Intersegment sales elimination
Segment Reporting
Net sales	$ (1.2)	$ (1.3)	$ (2.1)	$ (2.2)