Postretirement Benefit Plans

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Postretirement benefit plans

6. Postretirement benefit plans

Expense related to defined benefit and retiree health care benefit plans is as follows:

	U.S.						U.S.						Non-U.S.
	Defined Benefit						Retiree Health Care						Defined Benefit
For Three Months Ended September 30,	2018			2017			2018			2017			2018			2017
Service cost	$	5		$	5		$	1		$	2		$	8		$	9
Interest cost		9			11			4			4			11			11
Expected return on plan assets		(11	)		(11	)		(4	)		(4	)		(16	)		(16	)
Recognized net actuarial loss		4			4			1			—			5			7
Amortization of prior service credit		—			—			(1	)		(1	)		—			—
Net periodic benefit costs		7			9			1			1			8			11
Settlement losses		9			13			—			—			1			1
Total, including other postretirement losses	$	16		$	22		$	1		$	1		$	9		$	12

	U.S.						U.S.						Non-U.S.
	Defined Benefit						Retiree Health Care						Defined Benefit
For Nine Months Ended September 30,	2018			2017			2018			2017			2018			2017
Service cost	$	15		$	16		$	3		$	4		$	26		$	27
Interest cost		27			32			11			13			34			33
Expected return on plan assets		(32	)		(31	)		(11	)		(13	)		(50	)		(47	)
Recognized net actuarial loss		12			11			2			2			16			21
Amortization of prior service credit		—			—			(2	)		(3	)		(1	)		(1	)
Net periodic benefit costs		22			28			3			3			25			33
Settlement losses		11			23			—			—			2			2
Total, including other postretirement losses	$	33		$	51		$	3		$	3		$	27		$	35