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Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]  
Schedule of Range of Estimated Service Lives

The range of estimated service lives used to calculate financial reporting depreciation for principal items of plant and equipment are as follows:

 

Buildings

     15 – 45 Years   

Machinery and equipment

     5 – 40 Years   

Other

     3 – 25 Years