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Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan Disclosure [Line Items]

Schedule of Components of Net Costs

Net periodic pension cost consisted of the following:



	U.S. Plans								Non-U.S. Plans
	For the Three Months Ended March 31,								For the Three Months Ended March 31,
	2018				2017				2018				2017
	(in millions)
Service cost	$	12			$	12			$	38			$	39
Interest cost	15				15				52				48
Expected return on plan assets	(22		)		(25		)		(117		)		(104		)
Amortization:
Net loss from experience differences	11				8				42				41
Prior service cost/(benefit)	1				1				—				(1		)
Settlement losses and other expenses	7				3				—				1
Net periodic pension cost	$	24			$	14			$	15			$	24

Postretirement Benefit Plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Components of Net Costs

Net periodic postretirement health care benefit consisted of the following:



	For the Three Months Ended March 31,
	2018				2017
	(in millions)
Service cost	$	2			$	2
Interest cost	4				4
Amortization:
Net loss from experience differences	4				3
Prior service credit ⁽¹⁾	(10		)		(10		)
Net periodic postretirement health care benefit	$	—			$	(1	)


(1)	For the three months ended March 31, 2018 and March 31, 2017, amortization of prior service credit included an $8 million gain related to a change in the eligibility requirement and a change in benefits to Medicare-eligible participants.

Postemployment Benefit Plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Components of Net Costs

Net periodic postemployment cost consisted of the following:



	For the Three Months Ended March 31,
	2018				2017
	(in millions)
Service cost	$	2			$	1
Interest cost	1				1
Amortization of net gains	(1		)		(1		)
Net periodic postemployment cost	$	2			$	1