Supplemental Financial Statement Data Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Disclosure Text Block Supplement [Abstract]
Trade receivables	$ 1,272	$ 1,315
Allowance for doubtful accounts	(19)	(10)	$ (10)	$ (10)
Refundable income taxes	66	56
Other Receivables	218	215
Accounts receivable, net	1,537	1,576
Raw materials and supplies	338	303
Finished goods and materials in process	946	923
Inventories, net	1,284	1,226
Land	120	116
Buildings	2,135	2,021
Machinery and equipment	6,080	5,852
Capitalized software	543	496
Construction in progress	641	566
Accumulated depreciation	(5,806)	(5,439)
Property, net	3,713	3,612	3,731
Other intangibles	2,612	2,677
Accumulated amortization	(121)	(101)	$ (87)
Other intangibles, net	2,491	2,576
Pension	324	241
Deferred income taxes	254	231
Nonpension post retirement benefit plans	369	283
Other	515	384
Other assets	1,462	1,139
Accrued income taxes	58	42
Accrued salaries and wages	378	290
Other	709	577
Other Liabilities, Current	1,145	909
Income taxes payable	56	81
Nonpension postretirement benefits	34	33
Other	435	429
Other liabilities	$ 525	$ 543