Commitments and contingencies (Details 1) ¥ in Millions	12 Months Ended
Dec. 31, 2023 CNY (¥)
Investment Commitment
Capital commitments and Long-Term Debt Obligations
Investment commitments primarily related to capital contribution obligation	¥ 2,287
Capital commitments
Capital commitments and Long-Term Debt Obligations
Total commitments contracted but not yet reflected	¥ 8,150
Purchase Commitment \| Total net revenues \| Customer \| Customer Concentration Risk
Capital commitments and Long-Term Debt Obligations
Concentration risk (as a percentage)	1.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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+ References

No definition available.

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- Definition

Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

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