Goodwill (Details) ¥ in Millions, $ in Millions	12 Months Ended
Mar. 31, 2016 USD ($)	Mar. 31, 2016 CNY (¥)	Mar. 31, 2015 CNY (¥)	Mar. 31, 2014 CNY (¥)
Changes in goodwill
Goodwill at the beginning of period		¥ 41,933	¥ 11,793
Additions		50,723	30,319
Deconsolidation of a subsidiary		(10,556)	(4)
Impairment of goodwill	$ (71)	(455)	(175)	¥ (44)
Goodwill at the end of period	$ 12,662	81,645	41,933	¥ 11,793
Goodwill, Impaired, Accumulated Impairment Loss
Gross goodwill		85,095	44,928
Accumulated impairment losses of goodwill		¥ 3,450	¥ 2,995

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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