Pension Plan And Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2017

Pension Plan And Other Postretirement Benefits [Abstract]

Pension And Other Postretirement Benefit Costs

	Pension Benefits
	For the three months ended
	March 31,
	2017		2016
	(in millions)
Service cost	$	2	$	4
Interest cost		1		2
Expected return on plan assets		(1)		(2)
Amortization of prior service cost		–		–
Amortization of net loss		1		–
Net periodic benefit cost	$	3	$	4