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Depreciation and Amortization Expense	9 Months Ended
	Sep. 30, 2013
Property Plant And Equipment [Abstract]
Depreciation and Amortization Expense	D. Depreciation and amortization expense, including discontinued operations, was $143 million and $154 million, including accelerated depreciation (relating to business rationalization initiatives) of $12 million for each of the nine months ended September 30, 2013 and 2012, respectively.

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