Postretirement benefit plans (Tables)

3 Months Ended

Mar. 31, 2015

Compensation And Retirement Disclosure [Abstract]

Expense related to defined benefit and retiree health care benefit plans

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

	U.S.						U.S.						Non-U.S.
	Defined Benefit						Retiree Health Care						Defined Benefit
For Three Months Ended March 31,	2015			2014			2015			2014			2015			2014
Service cost	$	6		$	5		$	1		$	1		$	9		$	10
Interest cost		10			11			5			5			13			17
Expected return on plan assets		(12	)		(10	)		(5	)		(5	)		(19	)		(19	)
Recognized net actuarial loss		5			6			2			2			6			6
Amortization of prior service cost (credit)		—			—			1			1			—			(1	)
Net periodic benefit costs		9			12			4			4			9			13
Settlement losses		1			1			—			—			—			—
Total, including other postretirement losses	$	10		$	13		$	4		$	4		$	9		$	13