Segment Information (Sales And Other Financial Information By Business Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 5,243	$ 4,778
Segment operating income	972	735
Amortization of intangible assets	(153)	(161)
MedSurg and Neurotechnology
Segment Reporting Information [Line Items]
Net sales	2,999	2,690
Orthopaedics and Spine
Segment Reporting Information [Line Items]
Net sales	2,244	2,088
Operating Segments
Segment Reporting Information [Line Items]
Segment operating income	1,409	1,228
Operating Segments | MedSurg and Neurotechnology
Segment Reporting Information [Line Items]
Net sales	2,999	2,690
Segment operating income	804	627
Operating Segments | Orthopaedics and Spine
Segment Reporting Information [Line Items]
Net sales	2,244	2,088
Segment operating income	605	601
Corporate and other
Segment Reporting Information [Line Items]
Segment operating income	(263)	(222)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Acquisition and integration-related costs	13	(6)
Amortization of intangible assets	(153)	(161)
Structural optimization and other special charges	(14)	(42)
Medical device regulations	(13)	(28)
Recall-related matters	(5)	0
Regulatory and legal matters	$ (2)	$ (34)