Retirement and Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2015

Retirement and Postretirement Benefit Plans

Components of the net periodic benefit cost (in millions)

Three months ended September 30	2015					2014
Net Periodic Benefit Costs	Pension Benefit			Post- retirement Benefit		Pension Benefit			Post- retirement Benefit
Service cost	$	2		$	7	$	3		$	7
Interest cost	5			10		6			10
Expected return on plan assets	(7		)	—		(8		)	—
Recognized actuarial loss	3			6		1			4
Total	$	3		$	23	$	2		$	21

Nine months ended September 30	2015					2014
Net Periodic Benefit Costs	Pension Benefit			Post- retirement Benefit		Pension Benefit			Post- retirement Benefit
Service cost	$	6		$	21	$	9		$	19
Interest cost	15			30		18			34
Expected return on plan assets	(21		)	—		(25		)	—
Recognized actuarial loss	7			20		4			16
Total	$	7		$	71	$	6		$	69