Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue Recognition [Abstract]

Schedule of Disaggregated Revenue

We disaggregate our net sales by product line and geography for each of our segments as we believe it best depicts how the nature, amount, timing and certainty of our net sales and cash flows are affected by economic factors.

Net Sales by Product Line
	Three Months
	2019		2018
Orthopaedics:
Knees	$	439	$	419
Hips	336		331
Trauma and Extremities	396		389
Other	79		77
	$	1,250	$	1,216
MedSurg:
Instruments	$	478	$	412
Endoscopy	470		444
Medical	531		511
Sustainability	65		60
	$	1,544	$	1,427
Neurotechnology and Spine:
Neurotechnology	$	465	$	410
Spine	257		188
	$	722	$	598
Total	$	3,516	$	3,241

Net Sales by Geography
	Three Months 2019				Three Months 2018
	United States		International		United States		International
Orthopaedics:
Knees	$	320	$	119	$	301	$	118
Hips	213		123		205		126
Trauma and Extremities	254		142		245		144
Other	63		16		63		14
	$	850	$	400	$	814	$	402
MedSurg:
Instruments	$	381	$	97	$	316	$	96
Endoscopy	376		94		349		95
Medical	416		115		381		130
Sustainability	64		1		60		—
	$	1,237	$	307	$	1,106	$	321
Neurotechnology and Spine:
Neurotechnology	$	297	$	168	$	256	$	154
Spine	195		62		138		50
	$	492	$	230	$	394	$	204
Total	$	2,579	$	937	$	2,314	$	927