Pension Plan And Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2017

Pension Plan And Other Postretirement Benefits [Abstract]

Pension And Other Postretirement Benefit Costs

	Pension Benefits
	For the three months ended				For the six months ended
	June 30,				June 30,
	2017		2016		2017		2016
	(in millions)
Service cost	$	3	$	2	$	5	$	6
Interest cost		1		1		2		3
Expected return on plan assets		(2)		(1)		(3)		(3)
Amortization of prior service cost		–		−		−		−
Amortization of net loss		–		1		1		1
Curtailment loss		−		1		−		1
Settlement loss		−		8		−		8
Net periodic benefit cost	$	2	$	12	$	5	$	16