| **Restructuring And Other Charges**  | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
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| **Restructuring Charges [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| Restructuring And Other Charges      | RESTRUCTURING AND OTHER CHARGESRestructuring and other restructuring plan-related information as of December 31, 2012 was as follows (in millions):  Fiscal 2013Restructuring Fiscal 2011Restructuring OtherRestructurings and Reorganization   Workforce Facilities-related Other Workforce Other Facilities-related Other TotalBalances as of March 31, 2011$— $— $— $3 $101 $8 $5 $117Charges to operations— — — (1) 21 (12) 8 16Charges settled in cash— — — (2) (47) 7 (13) (55)Balances as of March 31, 2012— — — — 75 3 — 78Charges to operations10 4 9 — 5 (1) — 27Charges settled in cash(10) — (1) — (16) (1) — (28)Changes settled in non-cash— (1) (7) — — 1 — (7)Balances as of December 31, 2012$— $3 $1 $— $64 $2 $— $70Fiscal 2013 RestructuringOn May 7, 2012, we announced a restructuring plan to align our cost structure with our ongoing digital transformation. Under this plan, we reduced our workforce, terminated licensing agreements, and consolidated or closed various facilities. As of December 31, 2012, we have completed all actions under this restructuring plan. Since the inception of the fiscal 2013 restructuring plan through December 31, 2012, we have incurred charges of $23 million, consisting of (1) $10 million in employee-related expenses, (2) $9 million related to license termination costs, and (3) $4 million related to the closure of certain of our facilities. Substantially all of these costs will be settled in cash by March 31, 2013, with the exception of approximately $4 million of license and lease termination costs, which will be settled by August 2016. We do not expect to incur any additional restructuring charges under this plan.Fiscal 2011 RestructuringIn fiscal year 2011, we announced a plan focused on the restructuring of certain licensing and developer agreements in an effort to improve the long-term profitability of our packaged goods business. Under this plan, we amended certain licensing and developer agreements. To a much lesser extent, as part of this restructuring we had workforce reductions and facilities closures through March 31, 2011. Substantially all of these exit activities were completed by March 31, 2011.Since the inception of the fiscal 2011 restructuring plan through December 31, 2012, we have incurred charges of $173 million, consisting of (1) $130 million related to the amendment of certain licensing agreements and other intangible asset impairment costs, (2) $31 million related to the amendment of certain developer agreements, and (3) $12 million in employee-related expenses. The $64 million restructuring accrual as of December 31, 2012 related to the fiscal 2011 restructuring is expected to be settled by June 2016. We currently estimate recognizing in future periods through June 2016, approximately $9 million for the accretion of interest expense related to our amended licensing and developer agreements, of which $1 million will be recognized during the remainder of fiscal year 2013. This interest expense will be included in restructuring and other charges in our Condensed Consolidated Statement of Operations.Overall, including $173 million in charges incurred through December 31, 2012, we expect to incur total cash and non-cash charges between $180 million and $185 million by June 2016. These charges will consist primarily of (1) charges, including accretion of interest expense, related to the amendment of certain licensing and developer agreements and other intangible asset impairment costs (approximately $170 million) and (2) employee-related costs ($12 million).Other Restructurings and ReorganizationWe also engaged in various other restructurings and a reorganization based on management decisions made prior to fiscal 2011. We do not expect to incur any additional restructuring charges under these plans. The $2 million restructuring accrual as of December 31, 2012 related to our other restructuring plans is expected to be settled by September 2016. |

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| - Definition
The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140864-122747
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