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Fair Value Measurements (Tables) | 12 Months Ended
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Mar. 31, 2016
Fair Value Disclosures [Abstract] |
Schedule of financial assets measured at fair value on a recurring basis | Our financial assets measured at fair value on a recurring basis consist of the following:
| March 31, 2016 |  | March 31, 2015
(In millions) | Level 1 | Level 2 | Level 3 | Total |  | Level 1 | Level 2 | Level 3 | Total
Cash Equivalents |  |  |  |  |  |  |  |  |
Money market funds (1) | $ | 2,413 |  | $ | — |  | $ | — |  | $ | 2,413 |  |  | $ | 2,880 |  | $ | — |  | $ | — |  | $ | 2,880 |
Time deposits (2) | — |  | — |  | — |  | — |  |  | — |  | 94 |  | — |  | 94 |
Repurchase agreements (2) | — |  | — |  | — |  | — |  |  | 1,243 |  | — |  | — |  | 1,243 |
Total cash equivalents | $ | 2,413 |  | $ | — |  | $ | — |  | $ | 2,413 |  |  | $ | 4,123 |  | $ | 94 |  | $ | — |  | $ | 4,217 |
(1) Gross unrealized gain and losses were not material for the years ended March 31, 2016 and 2015 based on quoted prices of identical investments. (2) The carrying amounts of these cash equivalents approximated their estimated fair values because of their short maturities.

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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