Pensions, Other Post-employment Benefits and Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2013

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Periodic Benefit Costs

Components of net periodic benefit cost (gain) for the three months ended March 31, 2013 and 2012 are as follows:

	Pension Benefits						OPEB
	Three Months Ended March 31,						Three Months Ended March 31,
	2013			2012			2013			2012
	(in millions)
Service cost	$	4		$	7		$	—		$	—
Interest cost	18			21			4			4
Expected return on plan assets	(17		)	(16		)	—			—
Amortization of actuarial losses	6			10			2			—
Amortization of prior service credit	—			—			(3		)	(4		)
Settlement gain	—			(1		)	—			—
	$	11		$	21		$	3		$	—