Supplemental Balance Sheet Information (Components of Other Assets) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other Assets, Noncurrent [Abstract]
Deferred tax assets	$ 1,013.4	$ 944.7
Long-term receivables	172.7	168.0
Capitalized software	113.0	122.9
Investments	35.8	33.8
Other intangible assets, net (Note 11)	30.8	33.5
Tooling	24.5	37.9
Other	38.1	34.5
Other assets	$ 1,428.3	$ 1,375.3