Income from Continuing Operations Before Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S. income	$ 949	$ 887	$ 593
Foreign income	13	414	58
INCOME BEFORE INCOME TAXES	$ 962	$ 1,301	$ 651