Investments In Marketable Securities (Tables)

3 Months Ended

Sep. 30, 2011

Investments In Marketable Securities Tables [Abstract]

Marketable Securities By Type Table

		September 30, 2011								December 31, 2010
		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
		(in millions)
AVAILABLE-FOR-SALE:(1)
Debt securities:
	Unsecured debentures(2)	$	-	$	498	$	-	$	498	$	-	$	723	$	-	$	723
	Certificates of deposit(2)		-		447		-		447		-		876		-		876
	Government debt securities		-		40		-		40		-		47		-		47
	Other debt securities		-		-		40		40		-		-		42		42
	Subtotal		-		985		40		1,025		-		1,646		42		1,688
Equity securities:
	Mutual funds		-		56		-		56		1		61		-		62
	Common stock		2		-		-		2		7		-		-		7
	Subtotal		2		56		-		58		8		61		-		69
Total available-for-sale			2		1,041		40		1,083		8		1,707		42	$	1,757
TRADING:
Equity securities:
	Mutual funds		10		-		-		10		10		-		-		10
Total trading			10		-		-		10		10		-		-		10
TOTAL		$	12	$	1,041	$	40	$	1,093	$	18	$	1,707	$	42	$	1,767

Pre-Tax Gains And Losses On Available For Sale And Trading Securities

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2011		2010		2011		2010
		(in millions)				(in millions)
Losses included in earnings that relate to trading
	securities held at the reporting date	$	(2)	$	(1)	$	(1)	$	-
Unrealized losses on available-for-sale securities
	included in other comprehensive income	$	(1)	$	-	$	(4)	$	(10)
Proceeds from sales of available-for-sale securities		$	1,134	$	1,420	$	4,218	$	4,644
Gross realized gains on sales		$	1	$	-	$	5	$	2