Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Tax Credit Carryforward [Line Items]
Valuation allowance recorded against deferred tax assets	$ 345	$ 302
Operating loss carry forwards expiration year, minimum	2030
Operating loss carry forwards expiration year, maximum	2031
Other non-US NOL expiry term	between three years and indefinitely
Ownership changes percentage	100.00%
Increase in equity in case of ultimate realization of deferred tax assets	8
Provision for withholding tax not recorded	1,347
Additional provision for withholding tax not recorded	48
Deferred tax liability	50	47
US Federal statutory rate	35.00%
Unrecognized tax benefits	24	23	25	57
Interest and penalties accrued (released) related to unrecognized tax benefits	2	(1)	0
Total interest and penalties included in the ending balance of unrecognized tax benefits	6	4
Unrecognized tax benefits, expected to be realized	1	2
US Subsidiaries [Member]
Tax Credit Carryforward [Line Items]
Deferred tax liability	1
Unremitted earnings not considered permanent	35
Non-US Subsidiaries [Member]
Tax Credit Carryforward [Line Items]
Deferred tax liability	2
Unremitted earnings not considered permanent	10
Other Non-US [Member]
Tax Credit Carryforward [Line Items]
NOL carry forwards	692
Federal [Member]
Tax Credit Carryforward [Line Items]
NOL carry forwards	$ 179
Internal Revenue Code [Member]
Tax Credit Carryforward [Line Items]
Ownership changes percentage	5.00%
Offering period of stock	3 years
Internal Revenue Code [Member] | Minimum [Member]
Tax Credit Carryforward [Line Items]
Beneficial ownership changes percentage	50.00%