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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Reclassification of pension adjustment, tax (in Dollars)	$ 3	$ 4
Derivative instrument unrealized losses arising during the period, tax (in Dollars)	$ 3	$ 1

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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