Penson and Other Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2015

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Components of net pension and other postretirement benefit costs

	Pension Benefits								Other Postretirement Benefits
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
	June 30,				June 30,				June 30,				June 30,
(In millions)	2015		2014		2015		2014		2015		2014		2015		2014
Service cost	$	-	$	1	$	1	$	1	$	-	$	-	$	-	$	-
Interest cost		49		52		97		103		2		3		5		6
Expected long-term return on plan assets		(67)		(66)		(133)		(132)		-		-		-		-
Amortization of:
Net loss from past experience		18		15		35		29		-		-		-		-
Prior service cost		-		-		-		-		-		-		(1)		(1)
Settlement loss		-		-		-		6		-		-		-		-
Net cost	$	-	$	2	$	-	$	7	$	2	$	3	$	4	$	5