Postretirement benefit plans (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Components of net periodic employee benefit cost

Components of net periodic employee benefit cost are as follows:

	U.S. Defined Benefit						U.S. Retiree Health Care						Non-U.S. Defined Benefit
For Three Months Ended June 30	2013			2012			2013			2012			2013			2012
Service cost	$	7		$	6		$	2		$	1		$	10		$	10
Interest cost	10			11			5			6			15			20
Expected return on plan assets	(12		)	(12		)	(6		)	(6		)	(16		)	(20		)
Amortization of prior service cost (credit)	—			—			1			1			(1		)	(1		)
Recognized net actuarial loss	5			4			3			3			7			11
Net periodic benefit cost	10			9			5			5			15			20
Settlement loss	6			—			—			—			—			—
Curtailment gain	—			—			—			—			(3		)	—
Total, including other postretirement (gains) losses	$	16		$	9		$	5		$	5		$	12		$	20

	U.S. Defined Benefit						U.S. Retiree Health Care						Non-U.S. Defined Benefit
For Six Months Ended June 30	2013			2012			2013			2012			2013			2012
Service cost	$	14		$	12		$	3		$	2		$	20		$	20
Interest cost	21			23			10			12			31			39
Expected return on plan assets	(25		)	(25		)	(12		)	(11		)	(33		)	(40		)
Amortization of prior service cost (credit)	—			—			2			2			(2		)	(2		)
Recognized net actuarial loss	11			8			6			6			17			23
Net periodic benefit cost	21			18			9			11			33			40
Settlement loss	13			—			—			—			—			—
Curtailment gain	—			—			—			(1		)	(3		)	—
Special termination benefit gain	—			(2		)	—			—			—			—
Total, including other postretirement (gains) losses	$	34		$	16		$	9		$	10		$	30		$	40