16. Goodwill

Changes in the carrying amount of goodwill by segment for the years ended March 31, 2016 and 2017 were as follows:

	Core commerce		Cloud computing		Digital media and entertainment			Innovation initiatives and others			Total
	(in millions of RMB)
Balance as of April 1, 2015		16,297		368		20,498			4,770			41,933
Additions		49,926		—		797			—			50,723
Deconsolidation of a subsidiary (Note 4(j))		—		—		(10,556	)		—			(10,556	)
Impairment		—		—		(361	)		(94	)		(455	)

Balance as of March 31, 2016		66,223		368		10,378			4,676			81,645
Additions		13,298		—		30,110			—			43,408
Foreign currency translation adjustments		334		—		33			—			367

Balance as of March 31, 2017		79,855		368		40,521			4,676			125,420

Gross goodwill balances were RMB85,095 million and RMB128,870 million as of March 31, 2016 and 2017, respectively. Accumulated impairment losses were RMB3,450 million and RMB3,450 million as of the same dates, respectively.

In the annual goodwill impairment assessment, the Company concluded that the carrying amounts of certain reporting units exceeded their respective fair values and recorded impairment losses of RMB175 million, RMB455 million and nil during the years ended March 31, 2015, 2016 and 2017, respectively. The impairment losses were resulted from a revision of long-term financial outlook and the change in business model of those reporting units. The impairment loss was determined by comparing the carrying amounts of goodwill associated with the reporting units with their respective implied fair values of the goodwill. The goodwill impairment is presented as an unallocated item in the segment information (Note 26) because the CODM of the Company does not consider this as part of the segment operating performance measure.