Income Taxes - Reconciliation of Income Taxes Computed at Statutory U.S. Federal Income Tax Rate to Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense computed at the statutory U.S. federal income tax rate	$ (42)	$ 37	$ 117
Increases (reductions) in income tax expense resulting from:
Foreign income taxed at different rates	8	19	(48)
Transition tax under Tax Cuts and Jobs Act (TCJA)	0	11	43
Remeasurement of worldwide deferred taxes	0	0	53
State and local taxes on income, net of U.S. federal income tax benefit	(14)	(6)	(2)
Changes in valuation allowance for tax loss carryforwards and credits	36	0	(1)
Investment and R&D tax credits	(19)	(12)	(6)
Foreign earnings subject to U.S. federal income tax	12	13	(74)
Non-deductible expenses	16	3	3
Goodwill impairment	22	0	0
Tax contingencies	(7)	1	(1)
Gains on transfers of subsidiaries	21	0	0
Nonconsolidated affiliates	(8)	(4)	0
Other	(6)	1	(13)
Income tax expense	$ 19	$ 63	$ 71