Supplemental Financial Information (Schedule of Supplemental Balance Sheet Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021	Dec. 26, 2020
Accounts and notes receivable
Trade receivables	$ 8,192	$ 7,172
Other receivables	2,121	1,655
Total receivables	10,313	8,827
Analysis of valuation allowances
Allowance, beginning of year	147	201	$ 105
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (Pre-Tax)	0	0	44
Net amounts charged to expense	21	(19)	79
Deductions	(12)	(25)	(32)
Other	(6)	(10)	5
Allowance, end of year	150	147	201
Net receivables	10,163	8,680
Inventories (c)
Raw materials	2,366	1,898
Work-in-process	114	151
Finished goods	2,742	2,298
Inventories	5,222	4,347
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross	49,784	46,828
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	25,493	24,421
Property, Plant and Equipment, net	24,291	22,407
Depreciation	2,523	2,484	$ 2,335
Other assets
Other Assets	5,292	4,481
Noncurrent notes and accounts receivable	202	111
Deferred marketplace spending	123	119
Prepaid Expense and Other Assets, Noncurrent	948	1,260
Operating Lease, Right-of-Use Asset	2,373	2,020
Other Assets, Miscellaneous	833	694
Accounts payable and other current liabilities
Accounts payable	10,732	9,834
Accrued marketplace spending	3,637	3,087
Accrued compensation and benefits	2,519	2,324
Dividends payable	1,610	1,508
Operating Lease, Liability, Current	483	446
Other current liabilities	4,390	3,960
Accounts payable and other current liabilities	23,371	21,159
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 49,784	$ 46,828
Maximum [Member]
Property, Plant and Equipment [Line Items]
Percentage of LIFO Inventory	9.00%	7.00%
Percentage of LIFO Inventory	9.00%	7.00%
Land [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross	$ 1,142	$ 1,123
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,142	1,123
Buildings And Improvements
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross	10,816	10,279
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,816	10,279
Buildings And Improvements | Maximum
Property, Plant and Equipment [Line Items]
Average Useful Life (Years)	44 years
Buildings And Improvements | Minimum
Property, Plant and Equipment [Line Items]
Average Useful Life (Years)	15 years
Construction In Progress
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross	$ 4,491	3,940
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,491	3,940
Machinery And Equipment, Including Fleet And Software
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross	33,335	31,486
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 33,335	$ 31,486
Machinery And Equipment, Including Fleet And Software | Maximum
Property, Plant and Equipment [Line Items]
Average Useful Life (Years)	15 years
Machinery And Equipment, Including Fleet And Software | Minimum
Property, Plant and Equipment [Line Items]
Average Useful Life (Years)	5 years