Fair value measurement (Tables)

12 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Table of assets and liabilities that are measured at fair value on a recurring basis and categorized using the fair value hierarchy

The following table summarizes the Company’s assets and liabilities that are measured at fair value on a recurring basis and are categorized under the fair value hierarchy:

	As of March 31, 2024
	Level 1		Level 2		Level 3		Total
	RMB		RMB		RMB		RMB
	(in millions)
Assets
Time deposits and certificate of deposits (i)		—		339,730		—		339,730
Wealth management products (i)		—		20,784		—		20,784
Marketable debt securities (i)		—		8,591		—		8,591
Restricted cash and escrow receivables		38,299		—		—		38,299
Listed equity securities (ii)		67,181		—		—		67,181
Convertible and exchangeable bonds (ii)		—		147		3,197		3,344
Option agreements (iii)		—		90		165		255
Others (vi)		—		2,255		5,593		7,848
		105,480		371,597		8,955		486,032
Liabilities
Contingent consideration in relation to    investments and acquisitions (iv)		—		—		713		713
Others (iv)		—		24		801		825
		—		24		1,514		1,538

12.Fair value measurement (Continued)

	As of March 31, 2025
	Level 1		Level 2		Level 3		Total
	RMB		RMB		RMB		RMB
	(in millions)
Assets
Time deposits and certificate of deposits (i)		—		357,569		—		357,569
Wealth management products (i)		—		83,144		—		83,144
Marketable debt securities (i)		—		16,129		—		16,129
Restricted cash and escrow receivables		43,781		—		—		43,781
Listed equity securities (ii)(v)		67,712		9,918		—		77,630
Convertible and exchangeable bonds (ii)		—		145		818		963
Option agreements (iii)		—		87		814		901
Deferred consideration (iii)		—		—		3,039		3,039
Others (vi)		—		1,329		6,047		7,376
		111,493		468,321		10,718		590,532
Liabilities
Contingent consideration in relation to    investments and acquisitions (iv)		—		—		484		484
Others (iv)		—		389		924		1,313
		—		389		1,408		1,797

(i)Included in short-term investments and equity securities and other investments on the consolidated balance sheets.

(ii)Included in equity securities and other investments on the consolidated balance sheets.

(iii)Included in prepayments, receivables and other assets on the consolidated balance sheets.

(iv)Included in accrued expenses, accounts payable and other liabilities on the consolidated balance sheets.

(v)As of March 31, 2025, listed equity securities with fair value of RMB11,921 million were subject to contractual sale restrictions.

(vi)Others primarily represent other investments with underlying assets measured at fair value.

Schedule of rolling forward of convertible bonds categorized within Level 3 under the fair value hierarchy

	Amounts
	RMB
	(in millions)
Balance as of March 31, 2023		6,392
Additions		730
Net decrease in fair value		(1,243	)
Disposal		(2,645	)
Conversion		(107	)
Foreign currency translation adjustments		70
Balance as of March 31, 2024		3,197
Additions		311
Net increase in fair value		63
Disposal		(1,767	)
Conversion		(985	)
Foreign currency translation adjustments		(1	)
Balance as of March 31, 2025		818

Schedule of rolling forward of deferred consideration categorized within Level 3 under the fair value hierarchy

	Amounts
	RMB
	(in millions)
Balance as of March 31, 2024		—
Additions		3,022
Net increase in fair value		14
Foreign currency translation adjustments		3
Balance as of March 31, 2025		3,039