Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2014

Pension Plan [Member]

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

Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension cost consisted of the following:

	For the Nine Months Ended September 30,						For the Three Months Ended September 30,
	2014			2013			2014			2013
	(in millions)
Service cost	$	51		$	65		$	17		$	22
Interest cost	258			235			86			78
Expected return on plan assets	(389		)	(370		)	(129		)	(123		)
Amortization:
Net loss	111			203			36			67
Prior service cost	8			8			3			3
Net periodic pension cost	$	39		$	141		$	13		$	47

Other Postretirement Benefit Plan, Defined Benefit [Member]

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

Schedule of Net Benefit Costs [Table Text Block]

Net postretirement health care costs consisted of the following:

	For the Nine Months Ended September 30,						For the Three Months Ended September 30,
	2014			2013			2014			2013
	(in millions)
Service cost	$	11		$	13		$	3		$	3
Interest cost	80			74			26			23
Amortization:
Net loss	17			38			3			10
Prior service credit	(32		)	(33		)	(11		)	(11		)
Net postretirement health care costs	$	76		$	92		$	21		$	25