Restructuring Reserves (Summary Of Restructuring Charges) (Details) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011
Employment Reductions	$ 4
Long-Lived Assets	8
Total	12
Selling, General And Administrative Expense [Member]
Employment Reductions	4
Long-Lived Assets	0
Total	4
Other Operating Expense (Income) [Member]
Employment Reductions	0
Long-Lived Assets	8
Total	$ 8