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Acquisition and Restructuring Costs (Costs Related To Acquisition And Restructuring) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Expenses [Abstract]
Acquisition costs	$ 18	$ 13	$ 52	$ 41
Restructuring charges, net	12	15	22	45
Total acquisition and restructuring costs	$ 30	$ 28	$ 74	$ 86

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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