Segments of Business and Geographic Areas - Additions to Property, Plan & Equipment and Depreciation and Amortization (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Additions to Property, Plant & Equipment	$ 795	$ 807
Depreciation and Amortization	1,772	1,815
Segments Total
Segment Reporting Information [Line Items]
Additions to Property, Plant & Equipment	756	725
Depreciation and Amortization	1,720	1,757
Operating Segments | Innovative Medicine
Segment Reporting Information [Line Items]
Additions to Property, Plant & Equipment	276	232
Depreciation and Amortization	884	1,011
Operating Segments | MEDTECH
Segment Reporting Information [Line Items]
Additions to Property, Plant & Equipment	480	493
Depreciation and Amortization	836	746
Corporate, Non-Segment | General Corporate
Segment Reporting Information [Line Items]
Additions to Property, Plant & Equipment	39	82
Depreciation and Amortization	$ 52	$ 58