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v3.25.2

Convertible unsecured senior notes - General (Details) - 2024 Convertible Senior Notes $ / shares in Units, ¥ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May 31, 2024 USD ($) shares | Mar. 31, 2025 USD ($) $ / shares shares | Mar. 31, 2025 CNY (¥) shares | Mar. 31, 2025 CNY (¥)
Debt Instrument [Line Items] |  |  |  |
Principal amount | $ | $ 5,000,000,000 |  |  |
Debt Instrument, interest rate terms |  | The 2024 Convertible Senior Notes are senior unsecured obligations, and interest at an annual rate of 0.5% is payable in arrears semiannually. | The 2024 Convertible Senior Notes are senior unsecured obligations, and interest at an annual rate of 0.5% is payable in arrears semiannually. |
Interest rate | 0.50% |  |  |
Debt conversion, shares | shares | 9.5202 | 9.7271 | 9.7271 |
Debt conversion, principal amount | $ | $ 1,000 | $ 1,000 |  |
Convertible senior notes outstanding rate for redemption rights |  | 10.00% |  | 10.00%
Percentage of ADS price threshold for convertible bonds redemption |  | 130.00% | 130.00% |
Unamortized debt discounts and debt issuance costs |  | $ 58,000,000 |  | ¥ 424
Fair value |  | $ 7,151,000,000 |  | ¥ 51,854
Effective interest rate |  | 0.08% |  | 0.08%
Interest expense |  | $ 33,000,000 | ¥ 235 |
Interest charged |  | 21,000,000 | 152 |
Amortization of the debt discounts and debt issuance costs |  | 12,000,000 | ¥ 83 |
Purchase of capped call transactions |  | $ 638,000,000 |  | ¥ 4,612
Debt instrument, capped call transactions, initial cap price (in dollars per share) | $ / shares |  | $ 161.6 |  |
Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt conversion, shares | shares | 12.3762 | 12.6452 | 12.6452 |

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