Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Valuation allowance for deferred tax assets	$ 336
Foreign net operating loss carryforwards	440
U.S federal net operating loss carryforwards	624
Taxes on earnings	18
Undistributed earnings of subsidiaries	198
Unrecognized deferred income tax liabilities	1
Liabilities recorded for payment of tax-related interest and penalties	16	$ 15
Foreign Country [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, valuation allowance	$ 105
Foreign Country [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, expiration year	2016
Foreign Country [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, expiration year	2018
Domestic Country [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, valuation allowance	$ 218
Domestic Country [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, expiration year	2024
Domestic Country [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, expiration year	2035
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, valuation allowance	$ 24
State net operating loss carryforward	$ 469
State and Local Jurisdiction [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, expiration year	2016
State and Local Jurisdiction [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards, expiration year	2029
Additional Paid-in Capital [Member]
Operating Loss Carryforwards [Line Items]
U.S federal net operating loss carryforwards	$ 17
Expire in the years 2016 to 2018 [Member]
Operating Loss Carryforwards [Line Items]
Foreign net operating loss carryforwards	$ 22