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Accounting policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of range of estimated service lives

Buildings			10 – 45 Years
Machinery and equipment			7 – 35 Years
Other			4 – 40 Years

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- Definition

The range of estimated service lives used to calculate financial reporting depreciation for principal items of plant and equipment.

+ References

No definition available.

+ Details

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- Details

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