Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
U.S. Federal statutory rate	21.00%	35.00%	35.00%
Income tax expense (benefit)	$ 63	$ 71	$ (4)
Valuation allowance	514	163
Income Tax Expense (Benefit), Discrete Charge	11
Transition Tax under Tax Cuts and Jobs Act (TCJA)	11	43	0
Provisional expense for deferred tax assets		51
Foreign earnings subject to U.S. federal income tax	9	(74)	(101)
Reducing In Tax Loss Carryforward Due To Realization Domestic And State Tax Loss	2
Unremitted earnings of foreign subsidiaries	2,600
Estimated income tax liability related to unremitted earnings of foreign subsidiaries	117
Uncertain tax positions that would affect the effective tax rate if recognized	134	108	108
Liability for interest on unrecognized tax benefits	11	4	4
Estimated decrease in unrecognized tax benefits related to the expiration of foreign statute of limitations and the conclusion of foreign income tax examinations that may occur within the coming year	14
Reducing in Tax Loss Carryforward Due To Realization Foreign Tax Loss	68	7
Maximum
Schedule of Equity Method Investments [Line Items]
Penalties accrued	1	1	1
Accrued interest related to uncertain tax positions	2	1	1
Liability for penalties on unrecognized tax benefits	12	1
Domestic Tax Authority [Member]
Schedule of Equity Method Investments [Line Items]
Foreign earnings subject to U.S. federal income tax		(74)	$ (110)
Australia
Schedule of Equity Method Investments [Line Items]
Valuation allowance	$ 10
Spain, China, and Czech Republic
Schedule of Equity Method Investments [Line Items]
Transition Tax under Tax Cuts and Jobs Act (TCJA)		$ 51