Postretirement benefit plans (Tables)

3 Months Ended

Mar. 31, 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 March 31,	2013			2012			2013			2012			2013			2012
Service cost	$	7		$	6		$	1		$	1		$	10		$	10
Interest cost	11			11			5			6			16			19
Expected return on plan assets	(13		)	(12		)	(6		)	(5		)	(17		)	(20		)
Amortization of prior service cost (credit)	—			—			1			1			(1		)	(1		)
Recognized net actuarial loss	6			4			3			3			10			12
Net periodic benefit cost	$	11		$	9		$	4		$	6		$	18		$	20
Settlement loss (a)	7			—			—			—			—			—
Curtailment gain	—			—			—			(1		)	—			—
Special termination benefit gain	—			(2		)	—			—			—			—
Total, including other postretirement (gains) losses	$	18		$	7		$	4		$	5		$	18		$	20

(a) Non-restructuring related settlement charge due to retirement activity.