Senior Secured Notes due 2025 (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Sep. 25, 2023	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Debt Instrument [Line Items]
Prepayment premium		$ 60		$ 120
Loss on extinguishment of debt		$ (21)	$ 0	$ (21)	$ 0
Senior Secured Notes due 2025 | Senior notes
Debt Instrument [Line Items]
Prepayment premium	$ 16
Write off unamortized deferred financing costs	5
Loss on extinguishment of debt	$ 21