Other (Income)/Deductions - Net - Footnotes (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Oct. 02, 2022 |
Oct. 03, 2021 |
Oct. 02, 2022 |
Oct. 03, 2021 |
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| Loss Contingencies [Line Items] | ||||||
| Unrealized gain (loss) on equity securities | [1] | $ (116) | $ 322 | $ (1,436) | $ 1,518 | |
| BioNTech, Cerevel Therapeutics, LLC and Arvinas [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Unrealized gain (loss) on equity securities | $ (974) | |||||
| BioNTech and Cerevel [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Unrealized gain (loss) on equity securities | $ 420 | 1,500 | ||||
| BioNTech [Member] | Collaborative Arrangement [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Proceeds from collaborators | $ 188 | |||||
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