Other Balance Sheet and Statement of Operations Information - Other Non-Operating Interest (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Balance Sheet And Statement Of Operations Information [Abstract]
FX gain (loss)	$ 2	$ 1	$ 7	$ (15)
Net periodic pension costs - other components	3	4	10	13
Income from investments in non-consolidated affiliates	4	4	4	11
Other	1	1	17	3
Total	$ 10	$ 10	$ 38	$ 12