Employee Benefit Plans Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [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,
	2015			2014
Pension:
Service cost	$	1		$	1
Interest cost	13			14
Expected return on plan assets	(19		)	(19		)
Net amortization	10			8
Net periodic benefit cost	$	5		$	4
Other postretirement:
Service cost	$	1		$	1
Interest cost	4			7
Expected return on plan assets	(6		)	(8		)
Net amortization	(1		)	1
Net periodic benefit cost	$	(2	)	$	1