Accumulated Other Comprehensive Loss Activity, Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Jun. 29, 2019	Mar. 30, 2019	Jun. 27, 2020	Jun. 29, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 2,135	$ 2,173	$ 2,106	$ 2,126	$ 2,173	$ 2,126
Other comprehensive income (loss)	13	(42)	5	11	(29)	16
Balance	1,717	2,135	2,082	2,106	1,717	2,082
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(29)			(29)
Other comprehensive income (loss)					(28)
Balance	(57)				(57)
Change in Deferred Pension and Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(37)			(37)
Other comprehensive income (loss)					(1)
Balance	(38)				(38)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(108)	(66)	(88)	(99)	(66)	(99)
Other comprehensive income (loss)	13	(42)	5	11	(29)
Balance	$ (95)	$ (108)	$ (83)	$ (88)	$ (95)	$ (83)