Summary of Accounting Policies - Plant, Property, and Equipment, at Cost (Narrative) (Details)	12 Months Ended
Dec. 31, 2014
Building Improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	10 years
Building Improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	50 years
Machinery and Equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	3 years
Machinery and Equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	25 years

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration