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Accounting Policies - Property, Plant and Equipment and Depreciation (Details)	12 Months Ended
	Dec. 31, 2017
Buildings
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	16 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Computer software costs | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Computer software costs | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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