Components of Net Periodic Benefit Costs (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 22	$ 22	$ 43	$ 46
Expected return on plan assets	(29)	(26)	(56)	(52)
Amortization of net actuarial loss	4	5	7	10
Net periodic benefit cost	(3)	1	(6)	4
Foreign Pension Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	3	3	6	7
Expected return on plan assets	(1)	(1)	(1)	(2)
Service cost	1	2	2	3
Settlement loss		4		5
Net periodic benefit cost	3	8	7	13
Foreign Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	2	2	3	4
Net periodic benefit cost	$ 2	$ 2	$ 3	$ 4