Acquisitions (Tables)

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition

Purchase Price Allocation of Acquired Net Assets
	2018			2017
	Entellus			NOVADAQ
Tangible assets:
Accounts receivable	$	17		$	11
Inventory	14			25
Other assets	72			7
Contingent consideration	(78		)	—
Other liabilities	(92		)	(56		)
Intangible assets:
Customer relationship	33			18
Trade name	—			1
Developed technology and patents	256			141
Goodwill	475			527
Purchase price, net of cash acquired	$	697		$	674
Weighted-average life of intangible assets	16			15

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated Amortization Expense
Remainder of 2018		2019		2020		2021		2022
$	105	$	384	$	349	$	338	$	331