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Unsecured senior notes (Tables) - Unsecured senior notes | 12 Months Ended
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Mar. 31, 2022
Unsecured senior notes |
Summary of the unsecured senior notes | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of March 31, | ​ | Effective
​ |  | 2021 |  | 2022 |  | interest rate
​ |  | (in millions of RMB) | ​ | ​
US$1,500 million 3.125% notes due 2021 | ​ | 9,831 | ​ | — | ​ | 3.26%
US$700 million 2.800% notes due 2023 | ​ | 4,584 | ​ | 4,439 | ​ | 2.90%
US$2,250 million 3.600% notes due 2024 |  | 14,724 |  | 14,256 |  | 3.68%
US$2,550 million 3.400% notes due 2027 |  | 16,616 |  | 16,091 |  | 3.52%
US$1,500 million 2.125% notes due 2031 | ​ | 9,782 | ​ | 9,469 | ​ | 2.20%
US$700 million 4.500% notes due 2034 |  | 4,545 |  | 4,400 |  | 4.60%
US$1,000 million 4.000% notes due 2037 | ​ | 6,510 | ​ | 6,300 | ​ | 4.06%
US$1,000 million 2.700% notes due 2041 |  | 6,463 |  | 6,256 |  | 2.80%
US$1,750 million 4.200% notes due 2047 | ​ | 11,382 | ​ | 11,014 | ​ | 4.25%
US$1,500 million 3.150% notes due 2051 | ​ | 9,764 | ​ | 9,448 | ​ | 3.19%
US$1,000 million 4.400% notes due 2057 | ​ | 6,501 | ​ | 6,290 | ​ | 4.44%
US$1,000 million 3.250% notes due 2061 | ​ | 6,510 | ​ | 6,296 | ​ | 3.28%
Carrying value | ​ | 107,212 | ​ | 94,259 | ​ | ​
Unamortized discount and debt issuance costs |  | 756 |  | 668 |  | ​
Total principal amounts of unsecured senior notes |  | 107,968 |  | 94,927 |  | ​
Less: current portion of principal amounts of unsecured senior notes | ​ | (9,845) | ​ | — | ​ | ​
Non-current portion of principal amounts of unsecured senior notes |  | 98,123 |  | 94,927 |  | ​
Schedule of future principal payments due | ​
​ | ​ | ​
​ |  | Principal amounts
​ |  | (in millions of RMB)
Within 1 year |  | —
Between 1 to 2 years |  | 4,445
Between 2 to 3 years |  | 14,287
Between 3 to 4 years |  | —
Between 4 to 5 years |  | —
Thereafter | ​ | 76,195
​ |  | 94,927

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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