Assets And Liabilities Measured At Fair Value (Tables)

9 Months Ended

Sep. 30, 2011

Assets And Liabilities Measured At Fair Value

Assets And Liabilities Measured At Fair Value On A Recurring Basis



			Fair Value Measurements at September 30, 2011
Description	Total		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
			amounts in millions
Short term marketable securities	$	89	89	—	—
Available-for-sale securities	$	1,019	1,019	—	—
Financial instruments	$	73	—	73	—
Debt	$	2,426	—	2,426	—

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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