CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 57	$ 60	$ (337)	$ 44
Other comprehensive income (loss), net of tax, where applicable:
Foreign currency translation adjustments	9	(9)	(19)	6
Other			(1)	1
Total other comprehensive income (loss), net of tax, where applicable	9	(9)	(20)	7
Comprehensive income (loss)	$ 66	$ 51	$ (357)	$ 51