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Commitments- Capital commitments (Details) - CNY (¥) ¥ in Millions | Mar. 31, 2017 | Mar. 31, 2016
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Capital expenditures |  |
Capital commitments |  |
Contracted but not provided for | ¥ 4,609 | ¥ 2,491
Purchase of property and equipment |  |
Capital commitments |  |
Contracted but not provided for | 1,771 | 803
Construction of corporate campuses |  |
Capital commitments |  |
Contracted but not provided for | ¥ 2,838 | ¥ 1,688

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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=73718637&loc=d3e25336-109308 + Details
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