CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (208)	$ (319)	$ 99
Other comprehensive income, net of tax, where applicable:
Foreign currency translation adjustments		2	21
Change in deferred pension, net of $6 million, $7 million and $6 million of deferred income taxes in 2021, 2020 and 2019, respectively	26	32	12
Total other comprehensive income, net of tax, where applicable	26	34	33
Comprehensive income (loss)	$ (182)	$ (285)	$ 132