Employee Benefit Plans Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2013

Employee Benefit Plans [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Net periodic benefit cost for the pension and other postretirement benefit plans included the following components (in millions):

	Three-Month Periods
	Ended March 31,
	2013			2012
Pension:
Service cost	$	1		$	2
Interest cost	14			15
Expected return on plan assets	(19		)	(19		)
Net amortization	12			9
Net periodic benefit cost	$	8		$	7
Other postretirement:
Service cost	$	2		$	2
Interest cost	6			7
Expected return on plan assets	(7		)	(8		)
Net amortization	2			1
Net periodic benefit cost	$	3		$	2