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Organization and Basis of Presentation Organization and Basis of Presentation (Tables)
 12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consist of the following:
 
December 31,
 
2017
 
2016
 
(in millions)
Raw materials and work-in-progress
$
319.7

 
$
163.3

Finished goods
89.6

 
33.8

Gross inventories
409.3

 
197.1

Inventory valuation reserves
(17.3
)
 
(14.8
)
Inventories, net
$
392.0

 
$
182.3
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment consists of the following:
 
Estimated
 
December 31,
 
Useful Lives
 
2017
 
2016
 
(years)
 
(in millions)
Land
Indefinite
 
$
58.0

 
$
24.9

Land improvements
10-15
 
20.8

 
19.2

Buildings and building improvements
15-40
 
465.8

 
345.5

Machinery and equipment
3-12
 
2,962.8

 
1,976.0

Construction in progress
 
 
567.7

 
109.9

 
 
 
4,075.1

 
2,475.5

Accumulated depreciation and amortization
 
 
(1,672.2
)
 
(1,381.8
)
Property, plant and equipment, net
 
 
$
2,402.9

 
$
1,093.7