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

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Costs

Components of net periodic benefit cost for the three and nine months ended September 30, 2016 and 2015 are as follows:

	Pension Benefits						OPEB
	Three Months Ended September 30,						Three Months Ended September 30,
	2016			2015			2016			2015
	(in millions)
Service cost	$	5		$	5		$	—		$	—
Interest cost	17			18			3			3
Expected return on plan assets	(14		)	(18		)	—			—
Amortization of actuarial losses	6			6			1			2
Amortization of prior service credit	—			—			(1		)	(1		)
	$	14		$	11		$	3		$	4

	Pension Benefits						OPEB
	Nine Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(in millions)
Service cost	$	13		$	15		$	—		$	—
Interest cost	51			50			9			10
Expected return on plan assets	(43		)	(53		)	—			—
Amortization of actuarial losses	17			20			2			4
Amortization of prior service credit	—			—			(3		)	(3		)
	$	38		$	32		$	8		$	11