Identifiable Intangible Assets and Goodwill - Finite-lived Intangible Assets Percentage of Total Intangibles (Details)	Sep. 27, 2020
Operating Segments [Member] | Developed technology rights [Member] | Biopharma [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	99.00%
Operating Segments [Member] | Developed technology rights [Member] | Upjohn [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	1.00%
Operating Segments [Member] | Brands [Member] | Biopharma [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	100.00%
Operating Segments [Member] | Brands [Member] | Upjohn [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	0.00%
Operating Segments [Member] | Licensing Agreements And Other [Member] | Biopharma [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	99.00%
Operating Segments [Member] | Licensing Agreements And Other [Member] | Upjohn [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	1.00%
WRDM [Member] | Segment Reconciling Items [Member] | Developed technology rights [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	0.00%
WRDM [Member] | Segment Reconciling Items [Member] | Brands [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	0.00%
WRDM [Member] | Segment Reconciling Items [Member] | Licensing Agreements And Other [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of total identifiable intangible assets, less accumulated amortization	1.00%