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Restructuring - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jan. 02, 2022 | Jan. 03, 2021 | Dec. 29, 2019
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ 252 | $ 247 | $ 266
Supply Chain |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 473 |  |
Restructuring costs incurred since announced | 1,800 |  |
Supply Chain | Restructuring Charges |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 300 |  |
Supply Chain | Cost of products sold |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 100 |  |
Supply Chain | Other Income Expense Net |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 100 |  |
Supply Chain | Minimum |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related cost, expected future savings | 600 |  |
Pre-tax restructuring charges | $ 2,100 |  |
Restructuring and related cost, duration of restructuring plan | 4 years |  |
Supply Chain | Maximum |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related cost, expected future savings | $ 800 |  |
Pre-tax restructuring charges | $ 2,300 |  |
Restructuring and related cost, duration of restructuring plan | 5 years |  |

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