Summary of Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
	Apr. 01, 2022 shares	Dec. 31, 2022 USD ($) Age $ / shares shares	Dec. 25, 2021 USD ($) $ / shares shares	Dec. 26, 2020 USD ($)	Apr. 14, 2022 $ / shares shares
Summary Of Significant Accounting Policies [Line Items]
Percent of cost for inventories determined using LIFO		81.00%	83.00%
Excess of Replacement or Current Costs over Stated LIFO Value		$ 805	$ 658
Postretirement Benefits Number of Years of Full Time Service for Eligibility		5 years
Age Plus Years of Credited Service Required to Qualify for Post Retirement Benefits | Age		65
Minimum Retirement Age For Eligible Employees Of Postretirement Plans | Age		55
Minimum Years of Full Time Service for Eligible Employees of Postretirement Plans		10 years
Accumulation of Losses Exceeds Benefit Obligation		10.00%
Accrued Postretirement Benefit Obligation		$ 93	$ 123
Stockholders' Equity Note, Stock Split, Conversion Ratio	5
Common stock, par value | $ / shares		$ 1	$ 1		$ 1.00
Common stock, shares authorized | shares	1,000	4,000	4,000		4,000
Percent Revenue from Grocery Sales		83.00%	84.00%	85.00%
Percent Revenue from other products and Services		17.00%	16.00%	15.00%
Advertising costs		$ 317	$ 280	$ 245
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Lessee, Lease, Term of Contract		20 years
Lessee Leases, Renewal Term		5 years