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Restructuring - Schedule of Restructuring Reserve (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 03, 2021 | Sep. 27, 2020 | Oct. 03, 2021 | Sep. 27, 2020
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring charges | $ 60 | $ 68 | $ 169 | $ 187
Medical Devices |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Reserve balance beginning |  |  | 144 |
Restructuring charges |  |  | 333 |
Payments for Restructuring |  |  | (287) |
Restructuring Reserve, Settled without Cash |  |  | (38) |
Reserve balance ending | 152 |  | $ 152 |
Period of cash outlays for severance expected to be paid out |  |  | 18 months |
Medical Devices | Employee Severance |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Reserve balance beginning |  |  | $ 135 |
Restructuring charges |  |  | 0 |
Payments for Restructuring |  |  | (17) |
Restructuring Reserve, Settled without Cash |  |  | 0 |
Reserve balance ending | 118 |  | 118 |
Medical Devices | Asset Write-off |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Reserve balance beginning |  |  | 0 |
Restructuring charges |  |  | 38 |
Payments for Restructuring |  |  | 0 |
Restructuring Reserve, Settled without Cash |  |  | (38) |
Reserve balance ending | 0 |  | 0 |
Medical Devices | Other Restructuring |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Reserve balance beginning |  |  | 9 |
Restructuring charges |  |  | 295 |
Payments for Restructuring |  |  | (270) |
Restructuring Reserve, Settled without Cash |  |  |  |
Reserve balance ending | $ 34 |  | $ 34 |

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