Segment and Geographic Data (Segment Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Assets	$ 30,167	$ 27,229	$ 22,197
Capital Expenditures During Period	649	572	598
Operating Segments
Segment Reporting Information [Line Items]
Assets	28,797	26,550	21,350
Capital Expenditures During Period	419	382	382
Operating Segments | Orthopaedics
Segment Reporting Information [Line Items]
Assets	9,085	8,873	7,486
Capital Expenditures During Period	125	134	138
Operating Segments | MedSurg
Segment Reporting Information [Line Items]
Assets	12,066	10,417	9,759
Capital Expenditures During Period	265	217	194
Operating Segments | Neuro and Spine
Segment Reporting Information [Line Items]
Assets	7,646	7,260	4,105
Capital Expenditures During Period	29	31	50
Corporate
Segment Reporting Information [Line Items]
Assets	1,370	679	847
Capital Expenditures During Period	$ 230	$ 190	$ 216