Inventories (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Inventories [Abstract]
Raw materials	$ 239.3	$ 237.9
Work-in-process	1,068.7	902.1
Finished goods, including parts and subassemblies	2,110.9	1,797.9
Other	20.6	14.3
Gross Inventories	3,439.5	2,952.2
Excess of current standard costs over LIFO costs	(121.2)	(122.0)
Allowances	(102.0)	(89.0)
Total inventories	$ 3,216.3	$ 2,741.2