Goodwill (Tables)

12 Months Ended

Mar. 31, 2026

Intangible assets and goodwill [abstract]

Schedule of Reconciliation of Changes in Goodwill


						JPY (millions)
						For the Year Ended March 31
						2025						2026
Acquisition cost
As of beginning of the year						¥	5,410,067					¥	5,324,430

Reclassification to assets held for sale (Note 18)						(6,999)						(11,714)
Foreign currency translation differences and others						(78,637)						496,293
As of end of the year						¥	5,324,430					¥	5,809,010









Carrying amount
As of beginning of the year						¥	5,410,067					¥	5,324,430
As of end of the year						5,324,430						5,809,010


			JPY (millions)
Acquisition cost			Software						Intangible assets associated with products						Other						Total
As of April 1, 2024			¥	289,116					¥	8,300,433					¥	11,944					¥	8,601,492
Additions and other increases			38,769						55,345						134						94,248

Disposals and other decreases			(4,048)						(15,453)						(116)						(19,617)
Reclassification to assets held for sale (Note 18)			(95)						(11,108)						—						(11,204)

Foreign currency translation differences			(4,424)						(122,279)						(9)						(126,712)
As of March 31, 2025			¥	319,318					¥	8,206,937					¥	11,953					¥	8,538,208
Additions and other increases			35,420						191,426						—						226,845

Disposals and other decreases			(15,002)						(17,213)						(24)						(32,238)
Reclassification to assets held for sale (Note 18)			—						(46,943)						—						(46,943)

Foreign currency translation differences			32,307						640,053						59						672,419
As of March 31, 2026			¥	372,043					¥	8,974,261					¥	11,988					¥	9,358,291


Accumulated amortization and accumulated impairment losses
As of April 1, 2024			¥	(139,483)					¥	(4,186,707)					¥	(620)					¥	(4,326,810)
Amortization			(40,414)						(548,660)						(113)						(589,187)
Impairment losses			(556)						(95,047)						—						(95,602)

Disposals and other decreases			3,081						15,283						20						18,384
Reclassification to assets held for sale (Note 18)			63						11,108						—						11,171

Foreign currency translation differences			2,538						72,858						1						75,397
As of March 31, 2025			¥	(174,771)					¥	(4,731,164)					¥	(713)					¥	(4,906,647)
Amortization			(42,544)						(504,475)						(97)						(547,116)
Impairment losses			(762)						(132,640)						—						(133,402)

Disposals and other decreases			14,987						17,213						2						32,202
Reclassification to assets held for sale (Note 18)			—						43,353						—						43,353

Foreign currency translation differences			(19,665)						(407,643)						(25)						(427,332)
As of March 31, 2026			¥	(222,756)					¥	(5,715,356)					¥	(832)					¥	(5,938,943)


Carrying amount
As of April 1, 2024			¥	149,632					¥	4,113,726					¥	11,324					¥	4,274,682
As of March 31, 2025			144,547						3,475,773						11,240						3,631,560
As of March 31, 2026			149,287						3,258,905						11,156						3,419,348

Schedule of Discounted Cash Flows Model

Terminal growth rate and discount rate used in the discounted cash flow models for the impairment tests are as follows:


						For the Year Ended March 31
						2025						2026
Terminal growth rate						0.0%						0.0%
Discount rate (post-tax)						5.8%						7.0%