Other Financial Information - Schedule of Interest Cost Components (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Financial Information [Abstract]
Amount charged to expense	$ 195	$ 146	$ 121
Amount capitalized	6	9	13
Interest costs, total	$ 201	$ 155	$ 134