Parent company only condensed financial information - Schedule of condensed balance sheet (Details) $ in Millions |
Mar. 31, 2026
CNY (¥)
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Mar. 31, 2026
USD ($)
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Mar. 31, 2025
CNY (¥)
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| Condensed Balance Sheet Statements, Captions [Line Items] | |||
| Cash and cash equivalents | ¥ 131,530,000,000 | $ 19,068 | ¥ 145,487,000,000 |
| Total assets | 1,909,570,000,000 | 276,830 | 1,804,227,000,000 |
| Non-current bank borrowings | 47,450,000,000 | 6,879 | 49,909,000,000 |
| Non-current unsecured senior notes | 117,485,000,000 | 17,032 | 122,398,000,000 |
| Non-current convertible unsecured senior notes | 55,861,000,000 | 8,098 | 35,834,000,000 |
| Non-current exchangeable bonds | 10,976,000,000 | 1,591 | 0 |
| Total liabilities | 783,300,000,000 | 113,555 | 714,121,000,000 |
| Ordinary shares | 1,000,000 | 0 | 1,000,000 |
| Additional paid-in capital | 385,086,000,000 | 55,826 | 381,379,000,000 |
| Treasury shares, at cost | (36,141,000,000) | (5,239) | (36,329,000,000) |
| Statutory reserves | 16,628,000,000 | 2,410 | 15,936,000,000 |
| Retained earnings | 708,382,000,000 | 102,694 | 645,478,000,000 |
| Total shareholders' equity | 1,060,886,000,000 | 153,796 | 1,009,858,000,000 |
| Total liabilities, mezzanine equity and equity | 1,909,570,000,000 | $ 276,830 | 1,804,227,000,000 |
| Parent Company and VIE | |||
| Condensed Balance Sheet Statements, Captions [Line Items] | |||
| Cash and cash equivalents | 351,000,000 | 618,000,000 | |
| Amounts due from subsidiaries | 4,456,000,000 | 15,170,000,000 | |
| Prepayments and other assets | 97,000,000 | 245,000,000 | |
| Interest in subsidiaries and VIEs | 1,353,652,000,000 | 1,365,004,000,000 | |
| Total assets | 1,358,556,000,000 | 1,381,037,000,000 | |
| Amounts due to subsidiaries | 108,341,000,000 | 184,879,000,000 | |
| Accrued and other liabilities | 5,007,000,000 | 5,131,000,000 | |
| Non-current bank borrowings | 0 | 22,937,000,000 | |
| Non-current unsecured senior notes | 117,485,000,000 | 122,398,000,000 | |
| Non-current convertible unsecured senior notes | 55,861 | 35,834,000,000 | |
| Non-current exchangeable bonds | 10,976,000,000 | 0 | |
| Total liabilities | 297,670,000,000 | 371,179,000,000 | |
| Ordinary shares | 1,000,000 | 1,000,000 | |
| Additional paid-in capital | 385,086,000,000 | 381,379,000,000 | |
| Treasury shares, at cost | (36,141,000,000) | (36,329,000,000) | |
| Statutory reserves | 16,628,000,000 | 15,936,000,000 | |
| Accumulated other comprehensive income (loss) | (13,070,000,000) | 3,393,000,000 | |
| Retained earnings | 708,382,000,000 | 645,478,000,000 | |
| Total shareholders' equity | 1,060,886,000,000 | 1,009,858,000,000 | |
| Total liabilities, mezzanine equity and equity | ¥ 1,358,556,000,000 | ¥ 1,381,037,000,000 |
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- Definition Amount Due From Subsidiaries. No definition available.
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- Definition Amount due to subsidiaries. No definition available.
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- Definition Interest in subsidiaries No definition available.
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- Definition Non-current exchangeable bonds. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets. No definition available.
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- Definition Amount of accumulated undistributed earnings (deficit) not available for dividend distribution. Includes, but is not limited to, retained earnings appropriated for specific business purpose. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated undistributed earnings (deficit) available for dividend distribution. Includes, but is not limited to, retained earnings not appropriated for specific business purpose. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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