Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Benefit Plans (Tables) [Abstract]

Components of Net Periodic Benefit Cost

					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended September 30,				Three Months Ended September 30,
	2011		2010		2011		2010
	(in millions)
Service Cost	$	18	$	28	$	11	$	12
Interest Cost		59		63		27		29
Expected Return on Plan Assets		(79)		(78)		(27)		(27)
Amortization of Transition Obligation		-		-		1		6
Amortization of Prior Service Cost (Credit)		1		-		(1)		-
Amortization of Net Actuarial Loss		31		22		8		8
Net Periodic Benefit Cost	$	30	$	35	$	19	$	28

					Other Postretirement
	Pension Plans				Benefit Plans
	Nine Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
	(in millions)
Service Cost	$	54	$	83	$	32	$	35
Interest Cost		178		190		81		85
Expected Return on Plan Assets		(236)		(234)		(81)		(79)
Amortization of Transition Obligation		-		-		1		20
Amortization of Prior Service Cost (Credit)		1		-		(1)		-
Amortization of Net Actuarial Loss		92		67		23		22
Net Periodic Benefit Cost	$	89	$	106	$	55	$	83