Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 29, 2018 USD ($) Age	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Percent of cost for inventories determined using LIFO	85.00%	85.00%
Excess of Replacement or Current Costs over Stated LIFO Value | $	$ 489,058,000	$ 464,888,000
Postretirement Benefits Number Of Years Of Full Time Service For Eligibility	5 years
Age Plus Years Of 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%
Advertising costs | $	$ 249,123,000	$ 251,933,000	$ 260,367,000