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Pensions and Other Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Defined Benefit Plan Disclosure [Line Items]
Amendments	$ (1,800)
Percentage of corridor of greater of market value of assets	10.00%
Accumulated benefit obligation unfunded plans	$ 3,900	$ 8,800
Projected benefit obligation, unfunded plans	4,200	9,800
Plan with accumulated benefit obligation in excess of plan assets, plan assets	300	4,400
Fair value of company's common stock directly held in plan assets	$ 385	$ 946
Percentage of company's common stock to plan asset	0.90%	2.50%
Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Amendments	$ 5	$ (1,780)
Plan Assets	41,930	38,195	$ 32,201
Other Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Amendments	0	0
Plan Assets	102	90	$ 115
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans	102
International Plans
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans	867
Commingled funds | Level 2 | Other Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Plan Assets	$ 102	$ 90
Maximum | Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Retirement plan benefits Employee compensation Period	5 years

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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