Retirement and Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2015

Retirement and Postretirement Benefit Plans

Components of the net periodic benefit cost (in millions)

	2015					2014
Net Periodic Benefit Costs	Pension Benefit			Postretirement Benefit		Pension Benefit			Postretirement Benefit
Service cost	$	2		$	7	$	3		$	6
Interest cost	5			10		6			12
Expected return on plan assets	(7		)	—		(8		)	—
Recognized actuarial loss	2			7		1			6
Total	$	2		$	24	$	2		$	24