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Equity securities and other investments - Equity securities summary (Details) - CNY (¥) ¥ in Millions | 6 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Mar. 31, 2020
Net unrealized gains (losses) recognized during the period for equity securities still held as of the end of the period | ¥ 25,940 | ¥ (9,624) |
Net gains recognized during the period from disposals of equity securities during the period | 3 | 496 |
Net gains (losses) recognized during the period on equity securities | 25,943 | (9,128) |
Upward adjustments | 3,776 | 1,742 |
Impairments and downward adjustments | 5,667 | 5,854 |
Investments in privately held companies recorded using measurement alternative | 77,082 |  | ¥ 80,939
Realized gains or losses on disposal of debt investments | 0 | 0 |
Impairment losses on debt investments | ¥ 97 | ¥ 841 |

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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Excludes other-than-temporary impairment (OTTI). + References No definition available. + Details
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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714 + Details
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- Definition Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714 + Details
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- Definition Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714 + Details
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- Definition Amount of other-than-temporary impairment (OTTI) on investment in debt security, recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=118954083&loc=SL6284422-111562 + Details
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