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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair value, assets measured on a recurring and/or non-recurring basis

			Fair Value Measurements at
			March 31, 2013 Using
			Quoted
			Prices in
			Active		Significant
			Markets for		Other		Significant
	As of		Identical		Observable		Unobservable
	March 31,		Assets		Inputs		Inputs		Balance Sheet
	2013		(Level 1)		(Level 2)		(Level 3)		Classification
Recurring fair value measurements:
Money market funds	$	4,185	$	4,185	$	---	$	---	Cash and cash equivalents
U.S. treasuries and government agency securities		300		300		---		---	Short-term investments
Corporate bonds		11		11		---		---	Short-term investments
Auction rate securities ("ARS")		9		---		---		9	Long-term investments
Total recurring fair value measurements	$	4,505	$	4,496	$	---	$	9

				Fair Value Measurements at
				December 31, 2012 Using
				Quoted
				Prices in
				Active		Significant
				Markets for		Other		Significant
		As of		Identical		Observable		Unobservable
		December 31,		Assets		Inputs		Inputs		Balance Sheet
		2012		(Level 1)		(Level 2)		(Level 3)		Classification
Recurring fair value measurements:
Money market funds		$	3,511	$	3,511	$	---	$	---	Cash and cash equivalents
U.S. treasuries and government agency
	securities		387		387		---		---	Short-term investments
Corporate bonds			11		11		---		---	Short-term investments
ARS			8		---		---		8	Long-term investments
Total recurring fair value measurements		$	3,917	$	3,909	$	---	$	8

Fair value, assets classified as level 3 reconciliation

			Level 3
					Total
					financial
					assets at
			ARS		fair
			(a)		value
Balance at December 31, 2012			$	8	$	8
	Total unrealized gains included in other
		comprehensive income		1		1
Balance at March 31, 2013			$	9	$	9

			Level 3
					Total
					financial
					assets at
			ARS		fair
			(a)		value
Balance at December 31, 2011			$	16	$	16
	Total unrealized gains included in other
		comprehensive income		1		1
Balance at March 31, 2012			$	17	$	17

- 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 and/or nonrecurring 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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- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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