Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2012

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
	Three Months Ended March 31,
(in millions)	2012			2011			2012			2011
Service cost	$	—		$	—		$	15		$	13
Interest cost	232			242			41			45
Expected return on plan assets	(176		)	(181		)	(19		)	(23		)
Amortization of prior service benefit	—			—			(3		)	—
Recognized net actuarial loss (gain)	36			14			6			(3		)
Net periodic cost	$	92		$	75		$	40		$	32