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Intangible assets, net - General (Details) ¥ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Mar. 31, 2017 USD ($) | Mar. 31, 2017 CNY (¥) | Mar. 31, 2016 CNY (¥) | Mar. 31, 2015 CNY (¥) | Mar. 31, 2017 CNY (¥)
Intangible assets, net |  |  |  |  |
Less: accumulated amortization and impairment |  |  | ¥ (6,809) |  | ¥ (14,988)
Net book value | $ 2,050 |  | 5,370 |  | 14,108
Amortization expenses recognized | $ 1,309 | ¥ 9,008 | 3,278 | ¥ 2,173 |
Non-compete agreements |  |  |  |  |
Intangible assets, net |  |  |  |  |
Gross carrying amount |  |  | 4,284 |  | 5,915
Developed technology and patents |  |  |  |  |
Intangible assets, net |  |  |  |  |
Gross carrying amount |  |  | 3,652 |  | 4,793
Trade names, trademarks and domain names |  |  |  |  |
Intangible assets, net |  |  |  |  |
Gross carrying amount |  |  | 2,222 |  | 8,100
User base and customer relationships |  |  |  |  |
Intangible assets, net |  |  |  |  |
Gross carrying amount |  |  | 1,234 |  | 4,169
Licensed copyrights of video content |  |  |  |  |
Intangible assets, net |  |  |  |  |
Gross carrying amount |  |  | ¥ 787 |  | 6,087
Others |  |  |  |  |
Intangible assets, net |  |  |  |  |
Gross carrying amount |  |  |  |  | ¥ 32

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) and licensed copyrights of video content in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets and the amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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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. + References No definition available. + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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