Components of Net Periodic Benefit Costs (Detail) (USD $) In Millions	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Jun. 30, 2011	Sep. 30, 2011	Sep. 30, 2010
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 23	$ 23		$ 69	$ 75
Expected return on plan assets	(26)	(26)		(78)	(74)
Amortization of net actuarial loss	5	8		15	14
Net periodic benefit cost before curtailments and settlements				6	15
Net periodic benefit cost	2	5		6	15
Foreign Pension Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	3	4		10	13
Expected return on plan assets		(1)		(2)	(4)
Service cost	1	1		4	3
Net periodic benefit cost before curtailments and settlements				12	12
Settlement loss			5	5	1
Net periodic benefit cost	4	4		17	13
Foreign Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	1	2		5	6
Net periodic benefit cost before curtailments and settlements				5	6
Curtailment gain					(1)
Net periodic benefit cost	$ 1	$ 2		$ 5	$ 5