Summary of Amount Recognised in Balance Sheets for Pension Plans and Postretirement Benefit Plan (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 5	$ 6	$ 7
Employer contributions	57
Fair value at December 31	726
Actuarial loss	4	5	4
Prior service cost	(6)
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent	0	0
Noncurrent liabilities	(249)	(407)
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year	131
Interest cost	19	20	20
Benefits paid	(8)	(9)
Benefit obligation at December 31		131
Actuarial loss	9	7	4
Prior service cost	1	1
Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	17	18	19
Actuarial loss	10	7	5
Prior service cost	7	8
Postretirement
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year	131	140
Service cost		0
Interest cost	5	6
Actuarial (gain)/loss	(16)	(6)
Benefits paid	(8)
Benefit obligation at December 31	112	131
Employer contributions	8	10
Prescription drug subsidy received		(1)
Unfunded status at December 31	(112)	(131)
Actuarial loss	32	52
Prior service cost	(16)	(22)
Net amount recognized at December 31	(96)	(101)
Current liabilities	(8)	(8)
Noncurrent liabilities	(104)	(123)
Net amount recognized	(112)	(131)
Pension Plans, Defined Benefit | United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year	461	414
Service cost	1	1
Interest cost	19	20
Actuarial (gain)/loss	(41)	44
Benefits paid	(19)	(18)
Benefit obligation at December 31	421	461
Fair value at December 31 of the previous year	275	239
Actual return on plan assets	60	28
Employer contributions	31	26
Fair value at December 31	347	275
Unfunded status at December 31	(74)	(186)
Actuarial loss	190	278
Prior service cost	1	1
Net amount recognized at December 31	117	93
Current liabilities	(6)	(3)
Noncurrent liabilities	(68)	(183)
Net amount recognized	(74)	(186)
Pension Plans, Defined Benefit | Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year	431	370
Currency rate conversion	(2)	13
Settlement	(1)	(4)
Curtailment	(1)
Service cost	9	7
Interest cost	17	18
Administrative expenses/taxes paid	(2)	(1)
Plan amendments	1
Actuarial (gain)/loss	6	42
Benefits paid	(18)	(16)
Participants' contributions	2	2
Benefit obligation at December 31	442	431
Fair value at December 31 of the previous year	332	290
Currency rate conversion	(3)	11
Settlement	(1)	(4)
Actual return on plan assets	43	27
Employer contributions	26	22
Participants' contributions	2	2
Fair value at December 31	379	332
Unfunded status at December 31	(62)	(99)
Actuarial loss	137	168
Prior service cost	7	8
Net amount recognized at December 31	82	77
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent	11
Current liabilities	(2)	(2)
Noncurrent liabilities	(71)	(97)
Net amount recognized	$ (62)	$ (99)