Property, Plant, and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 7,145.4	$ 6,586.0
Less: accumulated depreciation	(1,797.4)	(1,683.1)
Property, plant, and equipment, net	5,348.0	4,902.9
Partially-owned subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	2,078.9	2,073.6
Less: accumulated depreciation	(412.5)	(356.2)
Manufacturing/ Corporate
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	1,861.5	1,681.7
Less: accumulated depreciation	(905.4)	(820.7)
Property, plant, and equipment, net	956.1	861.0
Manufacturing/ Corporate | Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	86.5	81.4
Manufacturing/ Corporate | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	610.4	548.2
Manufacturing/ Corporate | Machinery and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	1,095.9	975.7
Manufacturing/ Corporate | Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	68.7	76.4
Total
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	6,021.0	5,460.1
Total | Leasing Group | Wholly-owned subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	3,675.4	3,059.7
Less: accumulated depreciation	(549.1)	(460.5)
Property, plant, and equipment, net	3,126.3	2,599.2
Total | Leasing Group | Partially-owned subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	1,938.6	1,999.9
Total | Machinery and other | Leasing Group | Wholly-owned subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	10.7	10.7
Total | Equipment on lease | Leasing Group | Wholly-owned subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	3,664.7	3,049.0
Total | Equipment on lease | Leasing Group | Partially-owned subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	2,406.5	2,401.8
Less: accumulated depreciation	(467.9)	(401.9)
Intersegment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	$ (673.0)	$ (557.2)