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
Income Tax Examination [Line Items]
Current income tax receivable		$ 99
Current income tax payable	132
Stock based compensation	25	0	0
Valuation allowances	312	268
NOL carryforwards	5,059
NOL carryforwards benefit recorded in APIC when realized	24
Foreign tax credit carryforwards	432	243
Net operating loss carryforwards, expiration date/(year)	2021
Foreign tax credit carryforwards, expiration year	2014
Unremitted foreign income that is considered permanently reinvested on which U.S. Deferred income tax are not provided	3,019
International businesses cash and short-term investments related to the unremitted earnings of foreign operations	464
Unrecognized tax benefits	41	55	226	193
Unrecognized tax benefits, amount that if recognized would affect the effective rate on continuing operations	34
Unrecognized tax benefits, interest and penalties (expense)	1	5	0
Unrecognized tax benefits, accrued interest and penalties	3	4
Unrecognized tax benefits, amount that is reasonably possible that it will be recognized in 2014	14
Section 338 Election
Income Tax Examination [Line Items]
Remaining deferred tax assets related to Section 338 election deduction	599	599
Tax matters agreement obligation related to Section 338 election, period of repayment, years	10
Maximum deferred tax assets related to Section 338 election deduction	640
Percentage of tax savings associated with Section 338 deductions	80.00%
Additional paid-in capital
Income Tax Examination [Line Items]
Adjustment to deferred tax liability for unsupported balance	17	36
Tax Matters Agreement
Income Tax Examination [Line Items]
Interest expense related to tax matters agreement	15	17	18
Accretion rate for tax matters agreement	5.72%	5.72%	5.72%
Liability for estimated present value of tax payments to former parent	245	279
Correction of prior years
Income Tax Examination [Line Items]
Stock based compensation	$ 13