Self-Insurance Reserves (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
MovementInValuationAllowancesAndReservesRollForward [Roll Forward]
Balance at Beginning of Year	$ 478	$ 440	$ 397
Additions Charged to Income	592	545	537
Deductions From Reserves	544	507	494
Balance at End of Year	526	478	440
Self-Insurance Reserves, Current
MovementInValuationAllowancesAndReservesRollForward [Roll Forward]
Balance at Beginning of Year	210	191	161
Additions Charged to Income	597	526	524
Deductions From Reserves	544	507	494
Balance at End of Year	263	210	191
Self-Insurance Reserves, Noncurrent
MovementInValuationAllowancesAndReservesRollForward [Roll Forward]
Balance at Beginning of Year	268	249	236
Additions Charged to Income	(5)	19	13
Deductions From Reserves	0	0	0
Balance at End of Year	$ 263	$ 268	$ 249