Employee benefits (Tables)

12 Months Ended

Mar. 31, 2026

Text block 1 [Abstract]

Disclosure of Defined Benefit Plans

Changes in present value of defined benefit obligations and fair value of plan assets are as follows:


		Yen in millions
		For the years ended March 31,
		2025								2026
		Japanese plans				Foreign plans				Japanese plans				Foreign plans
Present value of defined benefit obligations:
Benefit obligations at beginning of year			1,898,339				1,651,016				1,729,554				1,622,053
Current service cost			76,758				49,225				62,259				50,747
Interest cost			26,290				81,411				37,798				81,582
Remeasurements:
Changes in demographic assumptions			(3,635	)			68				(2,153	)			1,944
Changes in financial assumptions			(181,128	)			(48,712	)			(181,466	)			(33,796	)
Other			(385	)			(15,579	)			4,347				44,858
Past service cost			(184	)			(3,027	)			(409	)			(591	)
Plan participants’ contributions			1,065				4,355				1,027				4,657
Benefits paid			(86,871	)			(76,204	)			(86,522	)			(84,889	)
Effect of changes in exchange rates and other			(696	)			(20,499	)			(86,937	)			114,563

Benefit obligations at end of year			1,729,554				1,622,053				1,477,496				1,801,130

Fair value of plan assets:
Plan assets at beginning of year			2,128,476				1,284,918				2,081,009				1,271,236
Interest income			29,462				57,149				48,763				63,712
Remeasurement
Actual return on plan assets, excluding interest income			(66,135	)			(33,874	)			106,715				892
Employer contributions			35,669				19,016				48,385				19,099
Plan participants’ contributions			1,065				4,355				1,027				4,657
Benefits paid			(47,528	)			(42,023	)			(46,738	)			(47,090	)
Effect of changes in exchange rates and other			—				(18,305	)			(286,583	)			97,536

Plan assets at end of year			2,081,009				1,271,236				1,952,578				1,410,042

The impact of minimum funding requirement and asset ceiling			572,107				—				718,851				—

Net defined benefit liability (asset)			220,652				350,817				243,769				391,088

Disclosure of Funded Defined Benefit Obligation and Unfunded Defined Benefit Obligation

The funded defined benefit obligations and the unfunded defined benefit obligations are as follows:


		Yen in millions
		March 31,
		2025								2026
		Japanese plans				Foreign plans				Japanese plans				Foreign plans

Funded defined benefit obligations			1,265,948				1,225,195				1,076,271				1,342,118
Plan assets			(2,081,009	)			(1,271,236	)			(1,952,578	)			(1,410,042	)
The impact of minimum funding requirement and asset ceiling			572,107				—				718,851				—

Subtotal			(242,954	)			(46,040	)			(157,457	)			(67,924	)

Unfunded defined benefit obligations			463,606				396,857				401,226				459,012

Total			220,652				350,817				243,769				391,088

Disclosure of Amounts Recognized in the Consolidated Statement of Financial Position are Comprised

The net defined benefit liability (asset) recognized in the consolidated statement of financial position are comprised of the following:


		Yen in millions
		March 31,
		2025								2026
		Japanese plans				Foreign plans				Japanese plans				Foreign plans

Retirement benefit liabilities			562,375				457,193				505,624				516,859
Other non-current assets (Retirement benefit assets)			(341,723	)			(106,376	)			(261,855	)			(125,771	)

Net amount recognized			220,652				350,817				243,769				391,088

Disclosure of Assumptions Used Defined Benefit Provident Fund Plan

The weighted-average discount rates used to determine the present value of defined benefit obligations are as follows:


		March 31,
		2025								2026
		Japanese plans				Foreign plans				Japanese plans				Foreign plans

Discount rate			2.2	%			5.4	%			3.1	%			5.5	%

Disclosure of fair value of planned asset

The following table summarizes the fair value of classes of plan assets.


		Yen in millions
		March 31, 2025
		Japanese plans												Foreign plans
		Quoted prices in active markets								Total				Quoted prices in active markets								Total
		Available				Not available				Total				Available				Not available				Total
Stocks			375,443				—				375,443				128,908				—				128,908
Government bonds			239,849				—				239,849				301,955				—				301,955
Bonds (other)			2,177				77,768				79,944				—				246,851				246,851
Commingled funds			—				500,917				500,917				—				398,380				398,380
Insurance contracts			—				224,694				224,694				—				—				—
Other			400,852				259,310				660,162				44,066				151,076				195,142

Total			1,018,321				1,062,688				2,081,009				474,929				796,306				1,271,236


		Yen in millions
		March 31, 2026
		Japanese plans												Foreign plans
		Quoted prices in active markets								Total				Quoted prices in active markets								Total
		Available				Not available				Total				Available				Not available				Total
Stocks			357,318				—				357,318				161,268				—				161,268
Government bonds			391,927				—				391,927				307,740				29,380				337,120
Bonds (other)			314				76,390				76,705				—				261,867				261,867
Commingled funds			—				522,785				522,785				—				470,609				470,609
Insurance contracts			—				154,224				154,224				—				—				—
Other			219,996				229,623				449,619				36,022				143,157				179,179

Total			969,555				983,023				1,952,578				505,029				905,013				1,410,042

Disclosure of Impact of Minimum Funding Requirement and Asset Ceiling

The impact of minimum funding requirements and asset ceilings is as follows:


		Yen in millions
		For the years ended March 31,
		2025								2026
		Japanese plans				Foreign plans				Japanese plans				Foreign plans
Beginning balance of the fiscal year			268,228				—				572,107				—
Interest income			4,694				—				13,542				—
Remeasurements:
Change in asset ceiling excluding interest income			299,185				—				133,201				—
Translation adjustments			—				—				—				—

Ending balance of the fiscal year			572,107				—				718,851				—

Disclosure of Sensitivity Analysis For Actuarial Assumptions Benefit Obligations

The following table illustrates the effects on defined benefit obligations of the change in weighted-average discount rates, assuming all other assumptions are consistent.


		Yen in millions
		March 31,
		2025								2026
		Japanese plans				Foreign plans				Japanese plans				Foreign plans
0.5% decrease			119,138				113,268				88,346				120,176
0.5% increase			(103,296	)			(110,060	)			(80,862	)			(118,461	)

Disclosure of Information About Maturity Profile of Defined Benefit Obligation

The weighted average duration of defined benefit obligations are as follows:

March 31,

2025

2026

Japanese plans

Foreign plans

Japanese plans

Foreign plans

Weighted average duration of defined benefit obligations

16.9 years

13.1 years

16.8 years

12.0 years