Business Segments (Geographic Information on Certain Long-Lived Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	$ 13,331.4		$ 13,481.5		$ 13,217.4
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	5,419.5		4,267.9		4,177.4
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	3,574.6		3,834.9		4,190.5
Malaysia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	4,258.8		5,301.7		4,101.2
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	0.4		0.4		703.2
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	$ 78.1	[1]	$ 76.6	[1]	$ 45.1	[1]

[1] Reclassified to conform to current presentation.