Note 10: Goodwill

Goodwill activity for each period was as follows:



(In Millions)	Dec 27, 2014		Acquisitions		Currency Exchange and Other			Dec 26, 2015
Client Computing Group	$	3,708	$	370	$	—		$	4,078
Data Center Group	2,376		28		—			2,404
Internet of Things Group	428		—		—			428
Software and services operating segments	4,236		10		(206		)	4,040
All other	113		269		—			382
Total	$	10,861	$	677	$	(206	)	$	11,332



(In Millions)	Dec 28, 2013		Acquisitions		Currency Exchange and Other			Dec 27, 2014
Client Computing Group	$	3,689	$	19	$	—		$	3,708
Data Center Group	1,969		407		—			2,376
Internet of Things Group	428		—		—			428
Software and services operating segments	4,409		41		(214		)	4,236
All other	18		113		(18		)	113
Total	$	10,513	$	580	$	(232	)	$	10,861

During the first quarter of 2015, we combined the PC Client Group and Mobile and Communications Group to create the Client Computing Group (CCG). All prior-period amounts have been retrospectively adjusted to reflect this organizational structure. For further information, see "Note 26: Operating Segments and Geographic Information."

During the fourth quarters of 2015, 2014, and 2013, we completed our annual impairment assessments and we concluded that goodwill was not impaired in any of these years. The accumulated impairment losses as of December 26, 2015 were $719 million: $365 million associated with CCG, $275 million associated with DCG, and $79 million associated with the Internet of Things Group.