| **Commitments And Contingencies (Tables)**              | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
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| **Commitments and Contingencies Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Minimum Contractual Obligations                         | The following table summarizes our minimum contractual obligations as of December 31, 2015 (in millions):    Fiscal Years Ending March 31,   2016               (Remaining             Total three mos.) 2017 2018 2019 2020 2021 ThereafterUnrecognized commitments               Developer/licensor commitments$1,321 $32 $183 $245 $220 $215 $184 $242Marketing commitments315 5 65 51 49 48 49 48Operating leases205 8 36 29 25 23 21 630.75% Convertible Senior Notes due 2016 interest (a)2 1 1 — — — — —Other purchase obligations39 15 18 3 2 1 — —Total unrecognized commitments1,882 61 303 328 296 287 254 353                Recognized commitments               0.75% Convertible Senior Notes due 2016 principal (a)340 340 — — — — — —Licensing and lease obligations (b)151 5 22 23 24 25 26 26Total recognized commitments491 345 22 23 24 25 26 26                Total commitments$2,373 $406 $325 $351 $320 $312 $280 $379 |

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| - References
No definition available.
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| - Definition
Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308
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