Components of Net Periodic Benefit Costs (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Interest cost		$ 74	$ 85	$ 92
Expected return on plan assets		(117)	(111)	(104)
Service cost
Amortization of net actuarial loss		20	14	20
Settlement loss
Net periodic benefit cost (credit)		(23)	(12)	8
Recognized in OCI:
Amount due to net actuarial (gains) losses		(88)	131	66
Prior service cost from plan amendments
Amortization of net actuarial losses in net periodic cost		(20)	(14)	(20)
Total recognized in OCI		(108)	117	46
Net recognized in benefit cost and OCI		(131)	105	54
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Interest cost		11	12	13
Expected return on plan assets		(1)	(1)	(2)
Service cost		6	5	5
Amortization of net actuarial loss		4
Settlement loss	5			5
Net periodic benefit cost (credit)		20	16	21
Recognized in OCI:
Amount due to net actuarial (gains) losses		(1)	51	(1)
Prior service cost from plan amendments			6
Amortization of net actuarial losses in net periodic cost		(4)		(5)
Total recognized in OCI		(5)	57	(6)
Net recognized in benefit cost and OCI		15	73	15
Foreign Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Interest cost		5	5	7
Service cost		1	1
Net periodic benefit cost (credit)		6	6	7
Recognized in OCI:
Amount due to net actuarial (gains) losses		(12)	(8)	7
Total recognized in OCI		(12)	(8)	7
Net recognized in benefit cost and OCI		$ (6)	$ (2)	$ 14