Amount of unamortized debt discount (premium) and debt issuance costs.

No definition available.

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- Definition

Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 8
-Article 9

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Balance Type:	na
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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.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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-SubTopic 30
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-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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- Definition

For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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Unsecured senior notes- General (Details) ¥ in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2015 CNY (¥)	Mar. 31, 2016 USD ($)	Mar. 31, 2016 CNY (¥)	Nov. 30, 2014 USD ($)	Nov. 30, 2014 CNY (¥)
Unsecured senior notes
Carrying value	¥ 48,994	$ 8,002	¥ 51,596
Unsecured senior notes
Unsecured senior notes
Principal amount \| $				$ 8,000
Carrying value			51,596
Unamortized discount and debt issuance costs			130
Total principal amounts of unsecured senior notes			51,726
Discount when issued				24	¥ 150
Debt issuance costs as a direct deduction from the principal amount		$ 29	175
US$300 million floating rate notes due 2017 \| Unsecured senior notes
Unsecured senior notes
Principal amount \| $				300
Carrying value			¥ 1,940
Effective interest rate		1.22%	1.22%
US$1,000 million 1.625% notes due 2017 \| Unsecured senior notes
Unsecured senior notes
Principal amount \| $				$ 1,000
Fixed interest rate				1.625%	1.625%
Carrying value			¥ 6,462
Effective interest rate		1.73%	1.73%
US$2,250 million 2.500% notes due 2019 \| Unsecured senior notes
Unsecured senior notes
Principal amount \| $				$ 2,250
Fixed interest rate				2.50%	2.50%
Carrying value			¥ 14,506
Effective interest rate		2.64%	2.64%
US$1,500 million 3.125% notes due 2021 \| Unsecured senior notes
Unsecured senior notes
Principal amount \| $				$ 1,500
Fixed interest rate				3.125%	3.125%
Carrying value			¥ 9,662
Effective interest rate		3.24%	3.24%
US$2,250 million 3.600% notes due 2024 \| Unsecured senior notes
Unsecured senior notes
Principal amount \| $				$ 2,250
Fixed interest rate				3.60%	3.60%
Carrying value			¥ 14,524
Effective interest rate		3.66%	3.66%
US$700 million 4.500% notes due 2034 \| Unsecured senior notes
Unsecured senior notes
Principal amount \| $				$ 700
Fixed interest rate				4.50%	4.50%
Carrying value			¥ 4,502
Effective interest rate		4.59%	4.59%
A previous syndicated loan \| Bank facility \| Interest expenses on the consolidated income statements
Unsecured senior notes
Amount of unamortized upfront fees charged to interest expenses	¥ 830