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Total costs accrued as of the balance sheet date for environmental loss contingencies.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Undiscounted amount of the accrual for environmental loss contingencies.

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