Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost and other amounts recognized in other comprehensive income

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in millions)	2016			2015			2016			2015
Domestic defined benefit pension plans:
Service cost	$	1		$	1		$	2		$	2
Interest cost	1			1			3			3
Expected return on plan assets	(2		)	(2		)	(4		)	(4		)
Amortization of net actuarial loss	1			1			2			2
Net periodic benefit cost	$	1		$	1		$	3		$	3
International defined benefit pension plans:
Service cost	$	3		$	3		$	8		$	9
Interest cost	6			6			18			18
Expected return on plan assets	(8		)	(8		)	(25		)	(25		)
Amortization of net actuarial loss	2			3			6			10
Net periodic benefit cost	$	3		$	4		$	7		$	12
Total net periodic benefit cost	$	4		$	5		$	10		$	15