Segment Reporting Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting
Net sales	$ 947.6	$ 1,017.4	$ 2,591.0	$ 2,723.1
Maximum percentage of sales accounted for by a single customer (as a percent)			10.00%
Canada [Member]
Segment Reporting
Net sales	402.2	411.2	$ 1,096.1	1,169.6
Europe [Member]
Segment Reporting
Net sales	512.6	566.0	1,393.4	1,448.7
MCI [Member]
Segment Reporting
Net sales	33.4	41.3	103.6	107.6
Corporate [Member]
Segment Reporting
Net sales	0.2	0.3	0.8	0.8
Intersegment sales elimination
Segment Reporting
Net sales	$ (0.8)	$ (1.4)	$ (2.9)	$ (3.6)