Supplemental Balance Sheet Information (Components of Other Assets) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Other Assets, Noncurrent [Abstract]
Deferred tax assets	$ 979.9	$ 944.7
Long-term receivables	187.7	168.0
Capitalized software	118.8	122.9
Investments	34.2	33.8
Other intangible assets, net (Note 11)	33.1	33.5
Tooling	30.4	37.9
Other	36.4	34.5
Other assets	$ 1,420.5	$ 1,375.3