Equipment, Property and Improvements - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Depreciation and amortization expense	$ 115	$ 94	$ 85
Purchase of equipment, property and improvements, net	176	$ 105	$ 80
Industrial revenue bonds maturity period		10 years
Amount issued related to industrial revenue bonds	$ 0	$ 270