Investments In Marketable Securities

3 Months Ended

Mar. 31, 2013

INVESTMENTS IN MARKETABLE SECURITIES

4. INVESTMENTS IN MARKETABLE SECURITIES

The Company's investments in marketable debt and equity securities as of March 31, 2013 and December 31, 2012 by security class and by level within the fair value hierarchy have been disclosed in Note 3—Fair Value. The security classes are determined based on the nature and risk of a security and are consistent with how the Company manages, monitors and measures its marketable securities. As of March 31, 2013, all available-for-sale debt securities had stated maturities within one year.

The following table summarizes the pre-tax gains and losses related to available-for-sale and trading securities for thethree months ended March 31, 2013 and 2012. Gains and losses on the sale of investments are determined using the specific identification method.For thethree months ended March 31, 2013 and 2012, there were no realizedlosses on the sale of available-for-sale securities and no other-than-temporary impairment of marketable securities recognized in earnings or other comprehensive income.

		2013		2012
		(in millions)
Gains included in earnings that relate to trading securities
	held at the reporting date	$	1	$	-
Unrealized gains (losses) on available-for-sale securities
Losses reclassified out of other comprehensive income
Gross proceeds from sales of available-for-sale securities			1,704		1,523
Gross realized gains on sales			-		1