Goodwill and other intangible assets (Tables)

12 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Acquired Intangible Assets other than Goodwill and Weighted-Average Amortization Period

Intangible assets other than goodwill acquired during the fiscal year ended March 31, 2018 totaled 110,788 million yen, of which 110,781 million yen is subject to amortization, and are comprised of the following:

	Intangible assets acquired during the fiscal year		Weighted-average amortization period
	Yen in millions		Years
Patent rights, know-how and license agreements		16,003		4
Software to be sold, leased or otherwise marketed		16,066		3
Internal-use software		69,205		5
Other		9,507		7

Intangible Assets Subject to Amortization

Intangible assets subject to amortization are comprised of the following:

	Yen in millions
	March 31, 2017					March 31, 2018
	Gross carrying amount		Accumulated amortization			Gross carrying amount		Accumulated amortization
Patent rights, know-how and license agreements		317,337		(251,401	)		175,980		(142,724	)
Customer relationships		37,289		(15,585	)		18,881		(7,615	)
Trademarks		31,630		(15,554	)		16,310		(8,451	)
Software to be sold, leased or otherwise marketed		117,897		(86,661	)		123,269		(92,457	)
Internal-use software		473,750		(310,408	)		494,649		(315,516	)
Music catalogs		218,321		(95,367	)		207,789		(94,210	)
Artist contracts		31,393		(29,001	)		28,534		(27,650	)
Television carriage contracts (broadcasting agreements)		74,780		(21,986	)		74,258		(25,884	)
Other		62,212		(46,624	)		58,543		(47,586	)
Total		1,364,609		(872,587	)		1,198,213		(762,093	)

Estimated Aggregate Amortization Expense for Intangible Assets

The estimated aggregate amortization expense for intangible assets for the next five fiscal years is as follows:

Fiscal year ending March 31	Yen in millions
2019		89,924
2020		73,516
2021		56,485
2022		39,050
2023		27,982

Total Carrying Amount of Intangible Assets having Indefinite Life

Total carrying amount of intangible assets having an indefinite life are comprised of the following:

	Yen in millions
	March 31
	2017		2018
Trademarks		70,220		68,922
Distribution agreements		18,834		18,834
Other		3,109		3,292
Total		92,163		91,048

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by segment for the fiscal years ended March 31, 2017 and 2018 are as follows:

	Yen in millions
	G&NS			Music			Pictures			HE&S			IP&S			MC			Semiconductors			Financial Services			All Other			Total
Balance, March 31, 2016:
Goodwill — gross		152,293			162,078			221,517			5,320			8,637			179,331			49,621			3,020			31,536			813,353
Accumulated impairments		—			(306	)		—			(5,320	)		(300	)		(176,045	)		—			(706	)		(24,386	)		(207,063	)
Goodwill		152,293			161,772			221,517			—			8,337			3,286			49,621			2,314			7,150			606,290
Increase (decrease) due to:
Acquisitions*1		—			7,689			29,363			—			—			—			—			61			—			37,113
Sales and dispositions		—			—			(60	)		—			—			—			—			—			—			(60	)
Impairments		—			—			(112,069	)		—			—			—			—			—			—			(112,069	)
Translation adjustments		(355	)		(3,351	)		(598	)		—			(186	)		—			(77	)		—			(11	)		(4,578	)
Other		—			—			—			—			—			—			(1,475	)		—			(2,683	)		(4,158	)
Balance, March 31, 2017:
Goodwill — gross		151,938			166,416			246,085			5,320			8,451			179,331			48,069			3,081			28,842			837,533
Accumulated impairments		—			(306	)		(107,932	)		(5,320	)		(300	)		(176,045	)		—			(706	)		(24,386	)		(314,995	)
Goodwill		151,938			166,110			138,153			—			8,151			3,286			48,069			2,375			4,456			522,538
Increase (decrease) due to:
Acquisitions		—			2,877			12,842			—			1,204			—			—			4,850			—			21,773
Sales and dispositions		—			(121	)		—			—			—			—			—			—			—			(121	)
Impairments		—			—			—			—			—			—			—			—			—			—
Translation adjustments		(1,332	)		(3,472	)		(6,583	)		—			162			—			(1,072	)		—			(85	)		(12,382	)
Other		—			—			—			—			—			—			(1,204	)		—			(112	)		(1,316	)
Balance, March 31, 2018:
Goodwill — gross		150,606			165,700			246,620			5,320			9,817			179,331			45,793			7,931			27,912			839,030
Accumulated impairments		—			(306	)		(102,208	)		(5,320	)		(300	)		(176,045	)		—			(706	)		(23,653	)		(308,538	)
Goodwill		150,606			165,394			144,412			—			9,517			3,286			45,793			7,225			4,259			530,492

*1 Acquisitions for the fiscal year ended March 31, 2017 relate mainly to the TEN Sports Network acquisition in the Pictures segment. Refer to Note 24.