Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The following table shows the components of net periodic cost:

	Pension Benefits						Other Postretirement and Postemployment Benefits
(in millions)	2013			2012			2013			2012
Three Months Ended June 30
Service cost	$	—		$	—		$	12		$	14
Interest cost	215			232			36			41
Expected return on plan assets	(184		)	(176		)	(21		)	(19		)
Amortization of prior service benefit	—			—			(7		)	(6		)
Recognized net actuarial loss	55			36			6			6
Settlements	—			—			—			104
Net periodic cost	$	86		$	92		$	26		$	140
Six Months Ended June 30
Service cost	$	—		$	—		$	24		$	29
Interest cost	430			464			72			82
Expected return on plan assets	(368		)	(352		)	(42		)	(38		)
Amortization of prior service benefit	—			—			(14		)	(9		)
Recognized net actuarial loss	111			72			12			12
Settlements	6			—			—			104
Net periodic cost	$	179		$	184		$	52		$	180