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Costs Associated with Rationalization Programs (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring and Related Activities [Abstract]
New Charges	$ 178	$ 106	$ 261
Reversals	(3)	(3)	(21)
Rationalizations	$ 175	$ 103	$ 240

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

Net total Increase or Decrease in the accrual for restructuring costs during the reporting period.

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