Amounts Recognized in Balance Sheet and Accumulated Other Comprehensive Income (Loss) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Amounts recognized in the balance sheet:
Noncurrent assets	$ 3	$ 8
Noncurrent liabilities	(580)	(530)
United States Pension Plan of US Entity [Member]
Amounts recognized in the balance sheet:
Noncurrent assets		1
Current liabilities
Noncurrent liabilities	(201)	(157)
Net amount recognized	(201)	(156)
Amounts recognized in AOCI:
Net actuarial loss (gain)	491	452
Prior service cost
Gross amount recognized	491	452
Deferred tax benefits
Noncontrolling and equity interests
Net amount recognized	491	452
Foreign Pension Plan [Member]
Amounts recognized in the balance sheet:
Noncurrent assets	3	7
Current liabilities	(10)	(11)
Noncurrent liabilities	(274)	(267)
Net amount recognized	(281)	(271)
Amounts recognized in AOCI:
Net actuarial loss (gain)	103	58
Prior service cost	3	10
Gross amount recognized	106	68
Deferred tax benefits	(25)	(16)
Noncontrolling and equity interests		(1)
Net amount recognized	81	51
Foreign Postretirement Benefit Plan [Member]
Amounts recognized in the balance sheet:
Current liabilities	(5)	(6)
Noncurrent liabilities	(105)	(106)
Net amount recognized	(110)	(112)
Amounts recognized in AOCI:
Net actuarial loss (gain)	(9)	(20)
Prior service cost
Gross amount recognized	(9)	(20)
Deferred tax benefits	3	5
Noncontrolling and equity interests
Net amount recognized	$ (6)	$ (15)