NOTE 3. GOODWILL

The following is a rollforward of our goodwill ($ in millions):



Balance, December 31, 2017	$	5,098.5
Attributable to 2018 acquisitions	1.8
Foreign currency translation & other	25.9
Balance, March 30, 2018	$	5,126.2

The carrying value of goodwill by segment is summarized as follows ($ in millions):



	March 30, 2018		December 31, 2017
Professional Instrumentation	$	3,349.1	$	3,331.0
Industrial Technologies	1,777.1		1,767.5
Total goodwill	$	5,126.2	$	5,098.5

We have not identified any “triggering” events which would have indicated a potential impairment of goodwill in the three months ended March 30, 2018.