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Note 17: Financial Instruments (Detail) - Derivatives in Cash Flow Hedging Relationships (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Commodity contracts		$ (5)	$ 1	$ 9
Commodity contracts	$ (3)	$ 7	$ (5)	$ 7

- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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