Percentage of vesting of share-based compensation awards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

+ References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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SHARE-BASED COMPENSATION (Details 6) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Share-based compensation
Expected dividends (as a percentage)	0.00%	0.00%	0.00%
Share bonus awards
Share-based compensation
Unvested share bonus targeted number of awards, beginning of period (in shares)	21,848,120	21,807,069	15,965,268
Granted (in shares)	6,963,125	8,978,941	9,582,867
Vested (in shares)	(7,246,056)	(5,481,153)	(1,506,234)
Forfeited (in shares)	(2,571,937)	(3,456,737)	(2,234,832)
Unvested share bonus targeted number of awards, end of period (in shares)	18,993,252	21,848,120	21,807,069
Unvested share bonus awards, weighted average grant-date fair value, beginning of period (in dollars per share)	7.32	6.80	6.91
Unvested share bonus targeted awards granted, weighted average grant-date fair value (in dollars per share)	11.75	8.07	6.74
Unvested share bonus awards vested, weighted average grant-date fair value (in dollars per share)	6.97	6.66	7.51
Unvested share bonus awards forfeited, weighted average grant-date fair value (in dollars per share)	7.70	7.07	6.86
Unvested share bonus awards, weighted average grant-date fair value, end of period (in dollars per share)	9.01	7.32	6.80
Aggregate intrinsic value of stock options vested and expected to vest	79.0	42.4	9.7
Shares vested	7,246,056	5,481,153	1,506,234
Share Bonus Awards with Market Conditions
Share-based compensation
Unvested share bonus targeted number of awards, end of period (in shares)	4,865,083
Expected dividends (as a percentage)	0.00%	0.00%	0.00%
Share Bonus Awards with Market Conditions \| Fiscal 2015
Share-based compensation
Unvested share bonus targeted number of awards, end of period (in shares)	962,083
Unvested share bonus targeted awards granted, weighted average grant-date fair value (in dollars per share)	14.77
Share Bonus Awards with Market Conditions \| Fiscal 2014
Share-based compensation
Unvested share bonus targeted number of awards, end of period (in shares)	1,932,000
Unvested share bonus targeted awards granted, weighted average grant-date fair value (in dollars per share)	9.36
Share Bonus Awards with Market Conditions \| Fiscal 2013
Share-based compensation
Unvested share bonus targeted number of awards, end of period (in shares)	1,591,000
Unvested share bonus targeted awards granted, weighted average grant-date fair value (in dollars per share)	7.60
Share Bonus Awards with Market Conditions \| Fiscal 2012
Share-based compensation
Unvested share bonus targeted number of awards, end of period (in shares)	380,000
Unvested share bonus targeted awards granted, weighted average grant-date fair value (in dollars per share)	7.83
Share Bonus Awards with Market Conditions \| Fiscal 2011
Share-based compensation
Vested (in shares)	(300,000)
Shares vested	300,000
Share Bonus Awards with Market Conditions \| Minimum \| Fiscal 2015
Share-based compensation
Vesting (as a percent)	0.00%
Share Bonus Awards with Market Conditions \| Minimum \| Fiscal 2014
Share-based compensation
Vesting (as a percent)	0.00%
Share Bonus Awards with Market Conditions \| Minimum \| Fiscal 2013
Share-based compensation
Vesting (as a percent)	0.00%
Share Bonus Awards with Market Conditions \| Minimum \| Fiscal 2012
Share-based compensation
Vesting (as a percent)	0.00%
Share Bonus Awards with Market Conditions \| Maximum
Share-based compensation
Number of shares that may be issued	9,540,166
Share Bonus Awards with Market Conditions \| Maximum \| Fiscal 2015
Share-based compensation
Vesting (as a percent)	200.00%
Number of shares that may be issued	1,924,166
Share Bonus Awards with Market Conditions \| Maximum \| Fiscal 2014
Share-based compensation
Vesting (as a percent)	200.00%
Number of shares that may be issued	3,864,000
Share Bonus Awards with Market Conditions \| Maximum \| Fiscal 2013
Share-based compensation
Vesting (as a percent)	200.00%
Number of shares that may be issued	3,182,000
Share Bonus Awards with Market Conditions \| Maximum \| Fiscal 2012
Share-based compensation
Vesting (as a percent)	150.00%
Number of shares that may be issued	570,000
Half of the share bonus awards with market conditions \| Fiscal 2012
Share-based compensation
Vested (in shares)	(400,000)
Shares vested	400,000