Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives - Footnotes (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 27, 2020 |
Sep. 29, 2019 |
Sep. 27, 2020 |
Sep. 29, 2019 |
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| Restructuring Cost and Reserve [Line Items] | ||||||
| Restructuring charge (credit) | [1] | $ (4) | $ 83 | $ 392 | $ (50) | |
| Array [Member] | ||||||
| Restructuring Cost and Reserve [Line Items] | ||||||
| Post-closing compensation expense for payments to Array employees for fair value of previously unvested stock options | 157 | 157 | ||||
| Other [Member] | ||||||
| Restructuring Cost and Reserve [Line Items] | ||||||
| Restructuring charge (credit) | (7) | 79 | 386 | 15 | ||
| Biopharma [Member] | Operating Segments [Member] | ||||||
| Restructuring Cost and Reserve [Line Items] | ||||||
| Restructuring charge (credit) | 6 | 10 | (3) | (38) | ||
| Upjohn [Member] | Operating Segments [Member] | ||||||
| Restructuring Cost and Reserve [Line Items] | ||||||
| Restructuring charge (credit) | $ (3) | $ (6) | $ 10 | $ (27) | ||
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