Equity securities and other investments (Details) - CNY (¥)
¥ in Millions |
12 Months Ended |
Mar. 31, 2023 |
Mar. 31, 2022 |
Mar. 31, 2021 |
| Equity securities and other investments and fair value disclosure |
|
|
|
| Original cost |
¥ 268,182
|
¥ 230,848
|
|
| Cumulative net gains (losses) |
(17,553)
|
1,436
|
|
| Carrying value |
250,629
|
232,284
|
|
| Net unrealized gains (losses) recognized during the period for equity securities still held as of the end of the period |
(29,481)
|
(25,587)
|
¥ 45,139
|
| Investments in privately held companies recorded using measurement alternative |
79,545
|
99,270
|
|
| Cumulative upward adjustments |
17,782
|
26,759
|
|
| Cumulative impairments and downward adjustments |
26,922
|
27,827
|
|
| Upward adjustments |
4,205
|
19,159
|
|
| Impairments and downward adjustments |
13,266
|
7,603
|
|
| Debt securities, Held-to-maturity, allowance for credit loss |
4,085
|
4,336
|
|
| Shareholder of an equity method investee with principal amount |
4,931
|
|
|
| Fair value of collateral |
3,574
|
|
|
| Impairment losses on debt investments |
(356)
|
3,225
|
175
|
| Listed equity securities |
|
|
|
| Equity securities and other investments and fair value disclosure |
|
|
|
| Original cost |
107,535
|
93,599
|
|
| Cumulative net gains (losses) |
216
|
9,661
|
|
| Carrying value |
107,751
|
103,260
|
|
| Investments in privately held companies |
|
|
|
| Equity securities and other investments and fair value disclosure |
|
|
|
| Original cost |
97,701
|
110,096
|
|
| Cumulative net gains (losses) |
(10,664)
|
(859)
|
|
| Carrying value |
87,037
|
109,237
|
|
| Debt investments | Debt securities and loan investments |
|
|
|
| Equity securities and other investments and fair value disclosure |
|
|
|
| Original cost |
22,210
|
27,153
|
|
| Cumulative net gains (losses) |
(7,105)
|
(7,366)
|
|
| Carrying value |
15,105
|
19,787
|
|
| Debt investments | Other Treasury Investments |
|
|
|
| Equity securities and other investments and fair value disclosure |
|
|
|
| Original cost |
40,736
|
|
|
| Cumulative net gains (losses) |
0
|
|
|
| Carrying value |
40,736
|
|
|
| Convertible and exchangeable bonds |
|
|
|
| Equity securities and other investments and fair value disclosure |
|
|
|
| Debt investments |
7,167
|
8,339
|
|
| Aggregate fair value was (lower) higher than their aggregate unpaid principal balance |
2,993
|
3,248
|
|
| Unrealized gains (losses) recorded |
¥ (262)
|
¥ (3,112)
|
¥ 1,573
|