Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended				12 Months Ended		0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2013 State and local jurisdiction [Member]	Dec. 31, 2013 Foreign country [Member]	Dec. 11, 2013 Mexico [Member]	Dec. 31, 2013 Mexico [Member]
Operating Loss Carryforwards [Line Items]
Undistributed foreign earnings	$ 3,300,000,000
Income taxes provided on undistributed foreign earnings	0
Net operating loss carryforwards	8,000,000				1,400,000,000	441,000,000
Operating loss carryforwards year of expiration	2032				2033	2032
Operating loss carryforwards year of begin to expire	2026				2014
Tax credit carryforward					21,000,000	1,000,000
Tax credit carryforward, indefinite amount					5,000,000
Tax credit carryforward, finite amount					16,000,000
Tax credit carryforward year of expiration					2026
Capital loss carryforward utilized	270,000,000	223,000,000				19,000,000
Other attributes carryforwards						18,000,000
Tax benefit for changes in tax law	(31,000,000)
Current statutory income tax rate							30.00%
Net valuation allowance	48,000,000	21,000,000	(304,000,000)					22,000,000
Tax benefit of discontinued operations	70,000,000
Company recognized tax benefit in continuing operations			25,000,000
Total unrecognized tax benefits	261,000,000	258,000,000	221,000,000	585,000,000
Tax benefits affecting effective tax rate	124,000,000
Settlement to result in tax benefit	52,000,000
Unrecognized tax benefits impact in the next twelve months	13,000,000
Payment of interest accrued	16,000,000	80,000,000
Accrued penalties related to unrecognized tax benefits	$ 1,000,000	$ 0