Segment Information (Sales And Other Financial Information By Business Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 4,778	$ 4,275
Segment operating income	735	447
Amortization of intangible assets	(161)	(150)
Recall-related matters	0	(14)
MedSurg and Neurotechnology:
Segment Reporting Information [Line Items]
Net sales	2,690	2,423
Orthopaedics and Spine:
Segment Reporting Information [Line Items]
Net sales	2,088	1,852
Operating Segments
Segment Reporting Information [Line Items]
Segment operating income	1,228	1,133
Operating Segments | MedSurg and Neurotechnology:
Segment Reporting Information [Line Items]
Net sales	2,690	2,423
Segment operating income	627	630
Operating Segments | Orthopaedics and Spine:
Segment Reporting Information [Line Items]
Net sales	2,088	1,852
Segment operating income	601	503
Corporate and other
Segment Reporting Information [Line Items]
Segment operating income	(222)	(199)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Acquisition and integration-related costs	(6)	(149)
Amortization of intangible assets	(161)	(150)
Structural optimization and other special charges	(42)	(109)
Medical device regulations	(28)	(28)
Recall-related matters	0	(14)
Regulatory and legal matters	$ (34)	$ (37)