Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2011

Employee Benefits and Other Expenses (Tables) [Abstract]

Components of net periodic benefit cost

	2011								2010
	Pension benefits								Pension benefits
				Non-		Other						Non-		Other
(in millions)	Qualified			qualified		benefits			Qualified			qualified		benefits
Quarter ended June 30,
Service cost	$	2			-		4			2			-		3
Interest cost		130			8		18			138			9		19
Expected return on plan assets		(190	)		-		(11	)		(179	)		-		(7	)
Amortization of net actuarial loss		22			2		-			26			1		-
Amortization of prior service credit		-			-		(1	)		-			-		(1	)
Settlement		1			-		-			-			-		-
Net periodic benefit cost (income)	$	(35	)		10		10			(13	)		10		14
Six months ended June 30,
Service cost	$	3			-		7			3			-		6
Interest cost		260			17		36			277			18		39
Expected return on plan assets		(379	)		-		(21	)		(358	)		-		(14	)
Amortization of net actuarial loss		43			4		-			52			2		-
Amortization of prior service credit		-			-		(2	)		-			-		(2	)
Settlement		3			-		-			-			-		-
Net periodic benefit cost (income)	$	(70	)		21		20			(26	)		20		29