Electronic Arts (EA) 10-Q 8 Nov 16 2017 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Sep. 30, 2016	Nov. 03, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Trading Symbol	EA
Entity Registrant Name	ELECTRONIC ARTS INC.
Entity Central Index Key	712,515
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		301,755,509

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
ASSETS:
Cash and cash equivalents	$ 1,746	$ 2,493	[1]
Short-term investments	1,520	1,341	[1]
Receivables, net of allowances of $105 and $159, respectively	723	233	[1]
Inventories	50	33	[1]
Other current assets	221	254	[1]
Total current assets	4,260	4,354	[1]
Property and equipment, net	431	439
Goodwill	1,709	1,710	[1]
Acquisition-related intangibles, net	28	57	[1]
Deferred income taxes, net	366	387	[1]
Other assets	98	103	[1]
TOTAL ASSETS	6,892	7,050	[1]
LIABILITIES:
Accounts payable	206	89	[1]
Accrued and other current liabilities	777	710	[1]
0.75% Convertible senior notes due 2016, net	0	161	[1]
Deferred net revenue (online-enabled games)	1,067	1,458	[1]
Total current liabilities	2,050	2,418	[1]
Senior notes, net	990	989
Income tax obligations	86	80	[1]
Deferred income taxes, net	2	2	[1]
Other liabilities	156	163	[1]
TOTAL LIABILITIES	3,284	3,652	[1]
Commitments and contingencies (See Note 11)			[1]
0.75% Convertible senior notes due 2016 (See Note 10)	0	2	[1]
STOCKHOLDERS' EQUITY:
Common stock, $0.01 par value. 1,000 shares authorized; 301 and 301 shares issued and outstanding, respectively	3	3	[1]
Additional paid-in capital	1,153	1,349	[1]
Retained earnings	2,462	2,060	[1]
Accumulated other comprehensive income (loss)	(10)	(16)
Total stockholders' equity	3,608	3,396	[1]
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 6,892	$ 7,050	[1]
[1]	Derived from audited Consolidated Financial Statements.

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Receivables, allowances	$ 105	$ 159
Preferred stock, par value	$ 0	$ 0.01
Preferred stock, shares authorized	0	10
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000	1,000
Common stock, shares issued	300	301
Common stock, shares outstanding	301	301

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net revenue:
Product	$ 420	$ 434	$ 1,104	$ 1,177
Service and other	478	381	1,065	841
Total net revenue	898	815	2,169	2,018
Cost of revenue:
Product	317	335	407	429
Service and other	84	74	173	153
Total cost of revenue	401	409	580	582
Gross profit	497	406	1,589	1,436
Operating expenses:
Research and development	291	265	585	561
Marketing and sales	143	156	271	279
General and administrative	111	101	219	199
Amortization of intangibles	1	3	3	4
Total operating expenses	546	525	1,078	1,043
Operating income (loss)	(49)	(119)	511	393
Interest and other income (expense), net	(3)	(9)	(11)	(12)
Income (loss) before provision for (benefit from) income taxes	(52)	(128)	500	381
Provision for (benefit from) income taxes	(14)	12	98	79
Net income (loss)	$ (38)	$ (140)	$ 402	$ 302
Earnings (loss) per share:
Basic	$ (0.13)	$ (0.45)	$ 1.34	$ 0.97
Diluted	$ (0.13)	$ (0.45)	$ 1.28	$ 0.90
Number of shares used in computation:
Basic	301	312	301	311
Diluted	301	312	315	334

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net income (loss)	$ (38)	$ (140)	$ 402	$ 302
Other comprehensive income (loss), net of tax:
Change in unrealized net gains and losses on available-for-sale securities	(1)	2	1	1
Reclassification adjustment for net realized gains and losses on available-for-sale securities	(1)	(1)	(1)	(1)
Change in unrealized net gains and losses on derivative instruments	(1)	5	27	(8)
Reclassification adjustment for net realized gains and losses on derivative instruments	(4)	(4)	(10)	(7)
Foreign currency translation adjustments	(6)	(32)	(11)	(31)
Total other comprehensive income (loss), net of tax	(13)	(30)	6	(46)
Total comprehensive income (loss)	$ (51)	$ (170)	$ 408	$ 256

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2016		Sep. 30, 2015
OPERATING ACTIVITIES
Net income	$ 402		$ 302
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation, amortization and accretion	91		99
Loss on conversion of senior notes	0		6
Stock-based compensation	96		89
Change in assets and liabilities:
Receivables, net	(493)		(379)
Inventories	(17)		(26)
Other assets	54		39
Accounts payable	133		126
Accrued and other liabilities	(34)		(149)
Deferred income taxes, net	20		1
Deferred net revenue (online-enabled games)	(391)		(170)
Net cash used in operating activities	(139)		(62)
INVESTING ACTIVITIES
Capital expenditures	(69)		(42)
Proceeds from maturities and sales of short-term investments	644		513
Purchase of short-term investments	(824)		(551)
Net cash used in investing activities	(249)		(80)
FINANCING ACTIVITIES
Payment of convertible notes	(163)		(198)
Proceeds from issuance of common stock	31		84
Excess tax benefit from stock-based compensation	37		65
Repurchase and retirement of common stock	(256)		(258)
Net cash used in financing activities	(351)		(307)
Effect of foreign exchange on cash and cash equivalents	(8)		(21)
Decrease in cash and cash equivalents	(747)		(470)
Beginning cash and cash equivalents	2,493	[1]	2,068
Ending cash and cash equivalents	1,746		1,598
Supplemental cash flow information:
Cash paid during the period for income taxes, net	26		26
Cash paid during the period for interest	22		3
Non-cash Investing activities
Change in accrued capital expenditures	$ (17)		$ (6)
[1]	Derived from audited Consolidated Financial Statements.

Description Of Business And Bas

Description Of Business And Basis Of Presentation	6 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description Of Business And Basis Of Presentation	(1) DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION We are a global leader in digital interactive entertainment. We develop, market, publish and distribute games, content and services that can be played by consumers on a variety of platforms, which include consoles (such as the PlayStation from Sony, and the Xbox from Microsoft), PCs, mobile phones and tablets. Some of our games are based on our wholly-owned intellectual property ( e.g. , Battlefield, Mass Effect, Need for Speed, The Sims and Plants vs. Zombies), and some of our games leverage content that we license from others ( e.g. , FIFA, Madden NFL and Star Wars). We also publish and distribute games developed by third parties ( e.g., Titanfall). Our products and services may be purchased through multiple distribution channels, including physical and online retailers, platform providers such as console manufacturers, providers of free-to-download PC games, mobile carriers and directly through Origin, our own digital distribution platform. Our fiscal year is reported on a 52 - or 53 -week period that ends on the Saturday nearest March 31. Our results of operations for the fiscal year ending March 31, 2017 contains 52 weeks and ends on April 1, 2017. Our results of operations for the fiscal year ended March 31, 2016 contained 53 weeks and ended on April 2, 2016. Our results of operations for the three months ended September 30, 2016 and 2015 contained 13 weeks each and ended on October 1, 2016 and October 3, 2015 , respectively. Our results of operations for the six months ended September 30, 2016 and 2015 contained 26 and 27 weeks, respectively, and ended on October 1, 2016 and October 3, 2015 , respectively. For simplicity of disclosure, all fiscal periods are referred to as ending on a calendar month end. The Condensed Consolidated Financial Statements are unaudited and reflect all adjustments (consisting only of normal recurring accruals unless otherwise indicated) that, in the opinion of management, are necessary for a fair presentation of the results for the interim periods presented. The preparation of these Condensed Consolidated Financial Statements requires management to make estimates and assumptions that affect the amounts reported in these Condensed Consolidated Financial Statements and accompanying notes. Actual results could differ materially from those estimates. The results of operations for the current interim periods are not necessarily indicative of results to be expected for the current year or any other period. These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2016 , as filed with the United States Securities and Exchange Commission (“SEC”) on May 27, 2016 . Impact of Recently Issued Accounting Standards In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718) : Improvements to Employee Share-Based Payment Accounting , related to simplifications of employee share-based payment accounting. This pronouncement eliminates the APIC pool concept and requires that excess tax benefits and tax deficiencies be recorded in the income statement when awards are settled. The pronouncement also addresses simplifications related to statement of cash flows classification, accounting for forfeitures, and minimum statutory tax withholding requirements. The pronouncement is effective for annual periods (and for interim periods within those annual periods) beginning after December 15, 2016. We are currently evaluating the timing and the impact of this new standard on our Consolidated Financial Statements and related disclosures. In January 2016, the FASB issued ASU 2016-01, Financial Instruments (Topic 825-10), which requires that most equity investments be measured at fair value, with subsequent changes in fair value recognized in net income. The ASU also impacts financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. The requirements will be effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. We are currently evaluating the impact of this new standard on our Consolidated Financial Statements and related disclosures. In March 2016, the FASB issued ASU 2016-04, Liabilities – Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products . The amendments in the ASU are designed to provide guidance and eliminate diversity in the accounting for derecognition of prepaid stored-value product liabilities. Typically, a prepaid stored-value product liability is to be derecognized when it is probable that a significant reversal of the recognized breakage amount will not subsequently occur. This is when the likelihood of the product holder exercising its remaining rights becomes remote. This estimate shall be updated at the end of each period. The amendments in this ASU are effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. Early adoption is permitted. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Financial Statements and related disclosures. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This update is intended to reduce the existing diversity in practice in how certain transactions are classified in the statement of cash flows. This update is effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. Early adoption is permitted, provided that all of the amendments are adopted in the same period. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Statements of Cash Flows. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The standard permits the use of either the retrospective or cumulative effect transition method. This new revenue standard, as amended by ASU 2015-14, is effective in the first quarter of fiscal year 2019. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , which clarifies the guidance in the new revenue standard on assessing whether an entity is a principal or an agent in a revenue transaction. This conclusion impacts whether an entity reports revenue on a gross or net basis. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing, which clarifies the guidance in the new revenue standard regarding an entity’s identification of its performance obligations in a contract, as well as an entity’s evaluation of the nature of its promise to grant a license of intellectual property and whether or not that revenue is recognized over time or at a point in time. In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers : Narrow-Scope Improvements and Practical Expedients, which amends the guidance in the new revenue standard on collectibility, noncash consideration, presentation of sales tax, and transition. The amendments are intended to address implementation issues that were raised by stakeholders and provide additional practical expedients to reduce the cost and complexity of applying the new revenue standard. These amendments have the same effective date as the new revenue standard. While we are currently evaluating the method of adoption and the impact of the new revenue standard, as amended, on our Consolidated Financial Statements and related disclosures, we believe the adoption of the new standard will have a significant impact on the accounting for certain transactions with multiple elements or “bundled” arrangements (for example, sales of online-enabled games for which we do not have vendor-specific objective evidence of fair value (“VSOE”) for unspecified future updates) because the requirement to have VSOE for undelivered elements under current accounting standards is eliminated under the new standard. Accordingly, we may be required to recognize as revenue a portion of the sales price upon delivery of the software, as compared to the current requirement of recognizing the entire sales price ratably over an estimated offering period. In addition, based upon what we expect to be our performance obligations under the new standard, as amended, we believe that upon adoption, a larger portion of our bundled arrangements will be presented as service revenue instead of product revenue in our Consolidated Statements of Operations. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The FASB issued this update to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The updated guidance is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption of the update is permitted. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Financial Statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). The standard changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for fiscal years, and interim periods within those years, beginning after December 15, 2018. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Financial Statements and related disclosures.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	(2) FAIR VALUE MEASUREMENTS There are various valuation techniques used to estimate fair value, the primary one being the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value, we consider the principal or most advantageous market in which we would transact and consider assumptions that market participants would use when pricing the asset or liability. We measure certain financial and nonfinancial assets and liabilities at fair value on a recurring and nonrecurring basis. Fair Value Hierarchy The three levels of inputs that may be used to measure fair value are as follows: • Level 1 . Quoted prices in active markets for identical assets or liabilities. • Level 2 . Observable inputs other than quoted prices included within Level 1, such as quoted prices for similar assets or liabilities, quoted prices in markets with insufficient volume or infrequent transactions (less active markets), or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated with observable market data for substantially the full term of the assets or liabilities. • Level 3 . Unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of assets or liabilities. Assets and Liabilities Measured at Fair Value on a Recurring Basis As of September 30, 2016 and March 31, 2016 , our assets and liabilities that were measured and recorded at fair value on a recurring basis were as follows (in millions): Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Financial Instruments Significant Other Observable Inputs Significant Unobservable Inputs As of (Level 1) (Level 2) (Level 3) Balance Sheet Classification Assets Bank and time deposits $ 236 $ 236 $ — $ — Cash equivalents Money market funds 185 185 — — Cash equivalents Available-for-sale securities: Corporate bonds 739 — 739 — Short-term investments U.S. Treasury securities 379 379 — — Short-term investments U.S. agency securities 163 — 163 — Short-term investments and cash equivalents Commercial paper 110 — 110 — Short-term investments and cash equivalents Foreign government securities 115 — 115 — Short-term investments Asset-backed securities 54 — 54 — Short-term investments Foreign currency derivatives 33 — 33 — Other current assets and other assets Deferred compensation plan assets (a) 9 9 — — Other assets Total assets at fair value $ 2,023 $ 809 $ 1,214 $ — Liabilities Foreign currency derivatives 11 — 11 — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 10 10 — — Other liabilities Total liabilities at fair value $ 21 $ 10 $ 11 $ — Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Financial Instruments Significant Other Observable Inputs Significant Unobservable Inputs As of (Level 1) (Level 2) (Level 3) Balance Sheet Classification Assets Bank and time deposits $ 345 $ 345 $ — $ — Cash equivalents Money market funds 143 143 — — Cash equivalents Available-for-sale securities: Corporate bonds 623 — 623 — Short-term investments and cash equivalents U.S. Treasury securities 407 407 — — Short-term investments and cash equivalents U.S. agency securities 170 — 170 — Short-term investments and cash equivalents Commercial paper 81 — 81 — Short-term investments and cash equivalents Foreign government securities 122 — 122 — Short-term investments and cash equivalents Foreign currency derivatives 16 — 16 — Other current assets and other assets Deferred compensation plan assets (a) 8 8 — — Other assets Total assets at fair value $ 1,915 $ 903 $ 1,012 $ — Liabilities Foreign currency derivatives 10 — 10 — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 9 9 — — Other liabilities Total liabilities at fair value $ 19 $ 9 $ 10 $ — (a) The Deferred Compensation Plan assets consist of various mutual funds. See Note 15 in our Annual Report on Form 10-K for the fiscal year ended March 31, 2016 , for additional information regarding our Deferred Compensation Plan.

Financial Instruments

Financial Instruments	6 Months Ended
	Sep. 30, 2016
Financial Instruments [Abstract]
Financial Instruments	(3) FINANCIAL INSTRUMENTS Cash and Cash Equivalents As of September 30, 2016 and March 31, 2016 , our cash and cash equivalents were $1,746 million and $2,493 million , respectively. Cash equivalents were valued at their carrying amounts as they approximate fair value due to the short maturities of these financial instruments. Short-Term Investments Short-term investments consisted of the following as of September 30, 2016 and March 31, 2016 (in millions): As of September 30, 2016 As of March 31, 2016 Cost or Amortized Cost Gross Unrealized Fair Value Cost or Amortized Cost Gross Unrealized Fair Value Gains Losses Gains Losses Corporate bonds $ 738 $ 1 $ — $ 739 $ 620 $ 1 $ — $ 621 U.S. Treasury securities 378 1 — 379 389 1 — 390 U.S. agency securities 154 — — 154 167 — — 167 Commercial paper 79 — — 79 50 — — 50 Foreign government securities 115 — — 115 113 — — 113 Asset-backed securities 54 — — 54 — — — — Short-term investments $ 1,518 $ 2 $ — $ 1,520 $ 1,339 $ 2 $ — $ 1,341 The following table summarizes the amortized cost and fair value of our short-term investments, classified by stated maturity as of September 30, 2016 and March 31, 2016 (in millions): As of September 30, 2016 As of March 31, 2016 Amortized Cost Fair Value Amortized Cost Fair Value Short-term investments Due in 1 year or less $ 749 $ 749 $ 571 $ 571 Due in 1-2 years 415 416 461 462 Due in 2-3 years 295 296 295 296 Due in 3-4 years 59 59 12 12 Short-term investments $ 1,518 $ 1,520 $ 1,339 $ 1,341

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	(4) DERIVATIVE FINANCIAL INSTRUMENTS The assets or liabilities associated with our derivative instruments and hedging activities are recorded at fair value in other current assets/other assets, or accrued and other current liabilities/other liabilities, respectively, on our Condensed Consolidated Balance Sheets. As discussed below, the accounting for gains and losses resulting from changes in fair value depends on the use of the derivative instrument and whether it is designated and qualifies for hedge accounting. We transact business in various foreign currencies and have significant international sales and expenses denominated in foreign currencies, subjecting us to foreign currency risk. We purchase foreign currency forward contracts, generally with maturities of 18 months or less, to reduce the volatility of cash flows primarily related to forecasted revenue and expenses denominated in certain foreign currencies. Our cash flow risks are primarily related to fluctuations in the Euro, British pound sterling, Canadian dollar, Swedish krona, Australian dollar, Chinese yuan and South Korean won. In addition, we utilize foreign currency forward contracts to mitigate foreign exchange risk associated with foreign-currency-denominated monetary assets and liabilities, including third party receivables and payables as well as intercompany balances. The foreign currency forward contracts not designated as hedging instruments generally have a contractual term of approximately 3 months or less and are transacted near month-end. We do not use foreign currency forward contracts for speculative trading purposes. Cash Flow Hedging Activities Certain of our forward contracts are designated and qualify as cash flow hedges. The effectiveness of the cash flow hedge contracts, including time value, is assessed monthly using regression analysis, as well as other timing and probability criteria. To qualify for hedge accounting treatment, all hedging relationships are formally documented at the inception of the hedges and must be highly effective in offsetting changes to future cash flows on hedged transactions. The derivative assets or liabilities associated with our hedging activities are recorded at fair value in other current assets/other assets, or accrued and other current liabilities/other liabilities, respectively, on our Condensed Consolidated Balance Sheets. The effective portion of gains or losses resulting from changes in the fair value of these hedges is initially reported, net of tax, as a component of accumulated other comprehensive income (loss) in stockholders’ equity. The gross amount of the effective portion of gains or losses resulting from changes in the fair value of these hedges is subsequently reclassified into net revenue or research and development expenses, as appropriate, in the period when the forecasted transaction is recognized in our Condensed Consolidated Statements of Operations. In the event that the gains or losses in accumulated other comprehensive income (loss) are deemed to be ineffective, the ineffective portion of gains or losses resulting from changes in fair value, if any, is reclassified to interest and other income (expense), net, in our Condensed Consolidated Statements of Operations. In the event that the underlying forecasted transactions do not occur, or it becomes remote that they will occur, within the defined hedge period, the gains or losses on the related cash flow hedges are reclassified from accumulated other comprehensive income (loss) to interest and other income (expense), net, in our Condensed Consolidated Statements of Operations. Total gross notional amounts and fair values for currency derivatives with cash flow hedge accounting designation are as follows (in millions): As of September 30, 2016 As of March 31, 2016 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 137 $ — $ 2 $ 148 $ 5 $ 1 Forward contracts to sell $ 936 $ 33 $ 9 $ 685 $ 11 $ 9 The net impact of the effective portion of gains and losses from our cash flow hedging activities in our Condensed Consolidated Statements of Operations was a gain of $5 million for the three months ended September 30, 2016 and a gain of $4 million for the three months ended September 30, 2015 . The net impact of the effective portion of gains and losses from our cash flow hedging activities in our Condensed Consolidated Statements of Operations was a gain of $11 million for the six months ended September 30, 2016 and a gain of $7 million for the six months ended September 30, 2015 . During the three and six months ended September 30, 2016 and 2015 , we reclassified an immaterial amount of the ineffective portion of gains or losses resulting from changes in fair value into interest and other income (expense), net. The amount excluded from the assessment of hedge effectiveness during three and six months ended September 30, 2016 and 2015 and recognized in interest and other income (expense), net, was immaterial. Balance Sheet Hedging Activities Our foreign currency forward contracts that are not designated as hedging instruments are accounted for as derivatives whereby the fair value of the contracts are reported as other current assets or accrued and other current liabilities on our Condensed Consolidated Balance Sheets, and gains and losses resulting from changes in the fair value are reported in interest and other income (expense), net, in our Condensed Consolidated Statements of Operations. The gains and losses on these foreign currency forward contracts generally offset the gains and losses in the underlying foreign-currency-denominated monetary assets and liabilities, which are also reported in interest and other income (expense), net, in our Condensed Consolidated Statements of Operations. The fair value of our foreign currency forward contracts was measured using Level 2 inputs. Total gross notional amounts and fair values for currency derivatives that are not designated as hedging instruments are accounted for as follows (in millions): As of September 30, 2016 As of March 31, 2016 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 89 $ — $ — $ 108 $ — $ — Forward contracts to sell $ 485 $ — $ — $ 159 $ — $ — The effect of foreign currency forward contracts not designated as hedging instruments in our Condensed Consolidated Statements of Operations for the three and six months ended September 30, 2016 and 2015 was immaterial, and is included in interest and other income (expense), net.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Comprehensive Income (Loss)	(5) ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The changes in accumulated other comprehensive income (loss) by component, net of tax, for the three months ended September 30, 2016 and 2015 are as follows (in millions): Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of June 30, 2016 $ 3 $ 36 $ (36 ) $ 3 Other comprehensive income (loss) before reclassifications (1 ) (1 ) (6 ) (8 ) Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (4 ) — (5 ) Total other comprehensive income (loss), net of tax (2 ) (5 ) (6 ) (13 ) Balance as of September 30, 2016 $ 1 $ 31 $ (42 ) $ (10 ) Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of June 30, 2015 $ (4 ) $ 5 $ (15 ) $ (14 ) Other comprehensive income (loss) before reclassifications 2 5 (32 ) (25 ) Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (4 ) — (5 ) Total other comprehensive income (loss), net of tax 1 1 (32 ) (30 ) Balance as of September 30, 2015 $ (3 ) $ 6 $ (47 ) $ (44 ) The changes in accumulated other comprehensive income (loss) by component, net of tax, for the six months ended September 30, 2016 and 2015 are as follows (in millions): Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of March 31, 2016 $ 1 $ 14 $ (31 ) $ (16 ) Other comprehensive income (loss) before reclassifications 1 27 (11 ) 17 Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (10 ) — (11 ) Total other comprehensive income (loss), net of tax — 17 (11 ) 6 Balance as of September 30, 2016 $ 1 $ 31 $ (42 ) $ (10 ) Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of March 31, 2015 $ (3 ) $ 21 $ (16 ) $ 2 Other comprehensive income (loss) before reclassifications 1 (8 ) (31 ) (38 ) Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (7 ) — (8 ) Total other comprehensive income (loss), net of tax — (15 ) (31 ) (46 ) Balance as of September 30, 2015 $ (3 ) $ 6 $ (47 ) $ (44 ) The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and six months ended September 30, 2016 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended Six Months Ended (Gains) losses on available-for-sale securities Interest and other income (expense), net $ (1 ) $ (1 ) Net of tax $ (1 ) $ (1 ) (Gains) losses on cash flow hedges from forward contracts Net revenue $ (4 ) $ (9 ) Research and development — (1 ) Net of tax $ (4 ) $ (10 ) Total (gain) loss reclassified, net of tax $ (5 ) $ (11 ) The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and six months ended September 30, 2015 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended Six Months Ended (Gains) losses on available-for-sale securities Interest and other income (expense), net $ (1 ) $ (1 ) Net of tax $ (1 ) $ (1 ) (Gains) losses on cash flow hedges from forward contracts Net revenue $ (6 ) $ (14 ) Research and development 2 7 Net of tax $ (4 ) $ (7 ) Total (gain) loss reclassified, net of tax $ (5 ) $ (8 )

Goodwill And Acquisition-Relate

Goodwill And Acquisition-Related Intangibles, Net	6 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill And Acquisition-Related Intangibles, Net	(6) GOODWILL AND ACQUISITION-RELATED INTANGIBLES, NET The changes in the carrying amount of goodwill for the six months ended September 30, 2016 are as follows (in millions): As of Activity Effects of Foreign Currency Translation As of Goodwill $ 2,078 $ — $ (1 ) $ 2,077 Accumulated impairment (368 ) — — (368 ) Total $ 1,710 $ — $ (1 ) $ 1,709 Goodwill represents the excess of the purchase price over the fair value of the underlying acquired net tangible and intangible assets. Goodwill is not amortized, but rather subject to at least an annual assessment for impairment by applying a fair value-based test. Acquisition-related intangibles consisted of the following (in millions): As of September 30, 2016 As of March 31, 2016 Gross Carrying Amount Accumulated Amortization Acquisition- Related Intangibles, Net Gross Carrying Amount Accumulated Amortization Acquisition- Related Intangibles, Net Developed and core technology $ 412 $ (395 ) $ 17 $ 412 $ (368 ) $ 44 Trade names and trademarks 106 (95 ) 11 106 (93 ) 13 Registered user base and other intangibles 5 (5 ) — 5 (5 ) — Carrier contracts and related 85 (85 ) — 85 (85 ) — Total $ 608 $ (580 ) $ 28 $ 608 $ (551 ) $ 57 Amortization of intangibles for the three and six months ended September 30, 2016 and 2015 are classified in the Condensed Consolidated Statement of Operations as follows (in millions): Three Months Ended Six Months Ended 2016 2015 2016 2015 Cost of service and other $ 8 $ 8 $ 16 $ 16 Cost of product 4 3 9 7 Operating expenses 1 3 3 4 Total $ 13 $ 14 $ 28 $ 27 Acquisition-related intangible assets are amortized using the straight-line method over the lesser of their estimated useful lives or the agreement terms, typically from 2 to 14 years . As of September 30, 2016 and March 31, 2016 , the weighted-average remaining useful life for acquisition-related intangible assets was approximately 1.6 years and 1.6 years , respectively. As of September 30, 2016 , future amortization of acquisition-related intangibles that will be recorded in the Condensed Consolidated Statement of Operations is estimated as follows (in millions): Fiscal Year Ending March 31, 2017 (remaining six months) $ 9 2018 17 2019 2 Total $ 28

Royalties And Licenses

Royalties And Licenses	6 Months Ended
	Sep. 30, 2016
Royalties And Licenses [Abstract]
Royalties And Licenses	(7) ROYALTIES AND LICENSES Our royalty expenses consist of payments to (1) content licensors, (2) independent software developers, and (3) co-publishing and distribution affiliates. License royalties consist of payments made to celebrities, professional sports organizations, movie studios and other organizations for our use of their trademarks, copyrights, personal publicity rights, content and/or other intellectual property. Royalty payments to independent software developers are payments for the development of intellectual property related to our games. Co-publishing and distribution royalties are payments made to third parties for the delivery of products. Royalty-based obligations with content licensors and distribution affiliates are either paid in advance and capitalized as prepaid royalties or are accrued as incurred and subsequently paid. These royalty-based obligations are generally expensed to cost of revenue at the greater of the contractual rate or an effective royalty rate based on the total projected net revenue for contracts with guaranteed minimums. Prepayments made to thinly capitalized independent software developers and co-publishing affiliates are generally made in connection with the development of a particular product, and therefore, we are generally subject to development risk prior to the release of the product. Accordingly, payments that are due prior to completion of a product are generally expensed to research and development over the development period as the services are incurred. Payments due after completion of the product (primarily royalty-based in nature) are generally expensed as cost of revenue. Our contracts with some licensors include minimum guaranteed royalty payments, which are initially recorded as an asset and as a liability at the contractual amount when no performance remains with the licensor. When performance remains with the licensor, we record guarantee payments as an asset when actually paid and as a liability when incurred, rather than recording the asset and liability upon execution of the contract. Prepaid royalties are classified as current assets to the extent that such amounts will be recognized in our Condensed Consolidated Statements of Operations within the next 12 months. Royalty liabilities are classified as current liabilities to the extent such royalty payments are contractually due within the next 12 months. Each quarter, we also evaluate the expected future realization of our royalty-based assets, as well as any unrecognized minimum commitments not yet paid to determine amounts we deem unlikely to be realized through product and service sales. Any impairments or losses determined before the launch of a product are generally charged to research and development expense. Impairments or losses determined post-launch are charged to cost of revenue. We evaluate long-lived royalty-based assets for impairment using undiscounted cash flows when impairment indicators exist. If impairment exists, then the assets are written down to fair value. Unrecognized minimum royalty-based commitments are accounted for as executory contracts, and therefore, any losses on these commitments are recognized when the underlying intellectual property is abandoned ( i.e. , cease use) or the contractual rights to use the intellectual property are terminated. During the three and six months ended September 30, 2016 and 2015, we did not recognize any material losses or impairment charges on royalty-based commitments, respectively. The current and long-term portions of prepaid royalties and minimum guaranteed royalty-related assets, included in other current assets and other assets, consisted of (in millions): As of As of Other current assets $ 69 $ 54 Other assets 54 63 Royalty-related assets $ 123 $ 117 At any given time, depending on the timing of our payments to our co-publishing and/or distribution affiliates, content licensors, and/or independent software developers, we classify any recognized unpaid royalty amounts due to these parties as accrued liabilities. The current and long-term portions of accrued royalties, included in accrued and other current liabilities and other liabilities, consisted of (in millions): As of As of Accrued royalties $ 162 $ 159 Other liabilities 111 118 Royalty-related liabilities $ 273 $ 277 As of September 30, 2016 , we were committed to pay approximately $1,425 million to content licensors, independent software developers, and co-publishing and/or distribution affiliates, but performance remained with the counterparty ( i.e. , delivery of the product or content or other factors) and such commitments were therefore not recorded in our Condensed Consolidated Financial Statements. See Note 11 for further information on our developer and licensor commitments.

Balance Sheet Details

Balance Sheet Details	6 Months Ended
	Sep. 30, 2016
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Details	(8) BALANCE SHEET DETAILS Inventories Inventories as of September 30, 2016 and March 31, 2016 consisted of (in millions): As of As of Finished goods $ 41 $ 32 Raw materials and work in process 9 1 Inventories $ 50 $ 33 Property and Equipment, Net Property and equipment, net, as of September 30, 2016 and March 31, 2016 consisted of (in millions): As of As of Computer, equipment and software $ 709 $ 684 Buildings 315 313 Leasehold improvements 129 129 Equipment, furniture and fixtures, and other 81 80 Land 61 61 Construction in progress 3 15 1,298 1,282 Less: accumulated depreciation (867 ) (843 ) Property and equipment, net $ 431 $ 439 During the three and six months ended September 30, 2016 , depreciation expense associated with property and equipment was $28 million and $57 million , respectively. During the three and six months ended September 30, 2015 depreciation expense associated with property and equipment was $30 million and $60 million respectively. Accrued and Other Current Liabilities Accrued and other current liabilities as of September 30, 2016 and March 31, 2016 consisted of (in millions): As of As of Other accrued expenses $ 289 $ 218 Accrued compensation and benefits 175 256 Accrued royalties 162 159 Deferred net revenue (other) 151 77 Accrued and other current liabilities $ 777 $ 710 Deferred net revenue (other) includes the deferral of subscription revenue, deferrals related to our Switzerland distribution business, advertising revenue, licensing arrangements, and other revenue for which revenue recognition criteria has not been met. Deferred Net Revenue (Online-Enabled Games) Deferred net revenue (online-enabled games) was $1,067 million and $1,458 million as of September 30, 2016 and March 31, 2016 , respectively. Deferred net revenue (online-enabled games) generally includes the unrecognized revenue from bundled sales of online-enabled games for which we do not have VSOE for the obligation to provide unspecified updates. We recognize revenue from the sale of online-enabled games for which we do not have VSOE for the unspecified updates on a straight-line basis, generally over an estimated nine-month period beginning in the month after shipment for physical games sold through retail and an estimated six-month period for digitally-distributed games. However, we expense the cost of revenue related to these transactions generally during the period in which the product is delivered (rather than on a deferred basis).

Income Taxes

Income Taxes	6 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	(9) INCOME TAXES We estimate our annual effective tax rate at the end of each quarterly period, and we record the tax effect of certain discrete items, which are unusual or occur infrequently, in the interim period in which they occur, including changes in judgment about deferred tax valuation allowances. In addition, jurisdictions with a projected loss for the year, jurisdictions with a year-to-date loss where no tax benefit can be recognized, and jurisdictions where we are unable to estimate an annual effective tax rate are excluded from the estimated annual effective tax rate. The impact of such an exclusion could result in a higher or lower effective tax rate during a particular quarter depending on the mix and timing of actual earnings versus annual projections. We recognize deferred tax assets and liabilities for both the expected impact of differences between the financial statement amount and the tax basis of assets and liabilities and for the expected future tax benefit to be derived from tax losses and tax credit carryforwards. We record a valuation allowance against deferred tax assets when it is considered more likely than not that all or a portion of our deferred tax assets will not be realized. In making this determination, we are required to give significant weight to evidence that can be objectively verified. In addition to considering forecasts of future taxable income, we are also required to evaluate and quantify other possible sources of taxable income in order to assess the realization of our deferred tax assets, namely the reversal of existing deferred tax liabilities, the carry back of losses and credits as allowed under current tax law, and the implementation of tax planning strategies. Evaluating and quantifying these amounts involves significant judgments. Each source of income must be evaluated based on all positive and negative evidence; this evaluation involves assumptions about future activity. In the fourth quarter of fiscal year 2016, we determined that the positive evidence overcame any negative evidence and concluded that it was more likely than not that the U.S. deferred tax assets were realizable. As a result, we released the valuation allowance against all of the U.S. federal deferred tax assets and a portion of the U.S. state deferred tax assets during the fourth quarter of fiscal year 2016, and we continue to believe those deferred tax assets are realizable as of September 30, 2016. We maintain a valuation allowance related to specific U.S. state deferred tax assets and foreign capital loss carryovers, due to uncertainty about the future realization of these assets. The provision for income taxes reported for the three and six months ended September 30, 2016 is based on our projected annual effective tax rate for fiscal year 2017 , and also includes certain discrete items recorded during the period. Our effective tax rate for the three and six months ended September 30, 2016 was 26.9 percent and 19.6 percent , respectively, as compared to 9.4 percent and 20.7 percent , respectively, for the same period of fiscal year 2016 . The effective tax rate for the three and six months ended September 30, 2016 was reduced, when compared to the statutory rate of 35.0 percent , due primarily to non-U.S. profits subject to a reduced or zero tax rate. The effective tax rate for the three and six months ended September 30, 2015 was reduced, when compared to the statutory rate of 35.0 percent , by the utilization of U.S. deferred tax assets which were subject to a valuation allowance and non-U.S. profits subject to a reduced or zero tax rate. Conversely, the effective tax rate for the three and six months ended September 30, 2015 was increased due to a discrete expense of $25 million and $65 million , respectively, for excess tax benefits from stock-based compensation deductions allocated directly to contributed capital. The effective tax rate for the three and six months ended September 30, 2016 differs from the same periods in fiscal year 2016 primarily due to the utilization of U.S. deferred tax assets in fiscal year 2016 which were subject to a valuation allowance and the discrete expense for excess tax benefits from stock-based compensation deductions allocated directly to contributed capital in fiscal year 2016. During the three and six months ended September 30, 2016 , we recorded a net increase of $10 million and $18 million , respectively, in gross unrecognized tax benefits. The total gross unrecognized tax benefits as of September 30, 2016 is $349 million . A portion of our unrecognized tax benefits will affect our effective tax rate if they are recognized upon favorable resolution of the uncertain tax positions. As of September 30, 2016 , if recognized, approximately $322 million of the unrecognized tax benefits would affect our effective tax rate and approximately $28 million would result in adjustments to deferred tax assets with corresponding adjustments to the valuation allowance. During the three and six months ended September 30, 2016 , we recorded a net increase of $1 million and $2 million , respectively, for accrued interest and penalties related to tax positions taken on our tax returns. As of September 30, 2016 , the combined amount of accrued interest and penalties related to uncertain tax positions included in income tax obligations on our Condensed Consolidated Balance Sheet was approximately $16 million . We file income tax returns in the United States, including various state and local jurisdictions. Our subsidiaries file tax returns in various foreign jurisdictions, including Canada, France, Germany, Switzerland and the United Kingdom. The IRS is currently examining our returns for fiscal years 2009 through 2011, and we remain subject to income tax examination by the IRS for fiscal years after 2012. We are also currently under income tax examination in the United Kingdom for fiscal years 2010 through 2014, and in France for fiscal years 2014 through 2016. We remain subject to income tax examination for several other jurisdictions including in Germany for fiscal years after 2012, in the United Kingdom for fiscal years after 2014, in Canada for fiscal years after 2008, and in Switzerland for fiscal years after 2007. The timing of the resolution of income tax examinations is highly uncertain, and the amounts ultimately paid, if any, upon resolution of the issues raised by the taxing authorities may differ materially from the amounts accrued for each year. Although potential resolution of uncertain tax positions involves multiple tax periods and jurisdictions, it is reasonably possible that a reduction of up to $67 million of unrecognized tax benefits may occur within the next 12 months, some of which, depending on the nature of the settlement or expiration of statutes of limitations, may affect the Company’s income tax provision and therefore benefit the resulting effective tax rate. The actual amount could vary significantly depending on the ultimate timing and nature of any settlements.

Financing Arrangement

Financing Arrangement	6 Months Ended
	Sep. 30, 2016
Debt Instruments [Abstract]
Financing Arrangement	(10) FINANCING ARRANGEMENTS 0.75% Convertible Senior Notes Due 2016 In July 2011 , we issued $632.5 million aggregate principal amount of 0.75% Convertible Senior Notes due 2016 (the “Convertible Notes”). The Convertible Notes matured on July 15, 2016. The Convertible Notes were senior unsecured obligations which paid interest semiannually in arrears at a rate of 0.75% per annum on January 15 and July 15 of each year. The Convertible Notes were convertible into cash and shares of our common stock based on an initial conversion value of 31.5075 shares of our common stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $31.74 per share). Upon conversion of the Convertible Notes, holders received cash up to the principal amount of each Convertible Note, and any excess conversion value was delivered in shares of our common stock. The Convertible Notes do not contain any financial covenants. Upon conversion of any Convertible Notes, we delivered cash up to the principal amount of the Convertible Notes and any excess conversion value was delivered in shares of our common stock. During the three months ended September 30, 2016 , approximately $136 million principal value of the Convertible Notes were converted by holders thereof. During the three months ended September 30, 2016 , we repaid the remaining principal balance on the Convertible Notes of $136 million and issued approximately 2.5 million shares of common stock to noteholders with a fair value of $193 million on the final maturity date of July 15, 2016. We also received and cancelled approximately 2.5 million shares of common stock from the exercise of the Convertible Note Hedge during the three months ended September 30, 2016 . During the six months ended September 30, 2016, we repaid $163 million of the principal balance of the Convertible Notes and issued approximately 2.9 million shares of common stock to noteholders with a fair value of $222 million , resulting in a loss on extinguishment of $0.3 million . The carrying and fair values of the Convertible Notes are as follows (in millions): As of As of Principal amount of Convertible Notes $ — $ 163 Unamortized debt discount of the liability component — (2 ) Net carrying value of Convertible Notes $ — $ 161 Fair value of Convertible Notes (Level 2) $ — $ 338 Convertible Note Hedge and Warrants Issuance In July 2011, we entered into certain agreements designed to reduce the potential dilution with respect to our common stock upon conversion of the Convertible Notes (“the Convertible Note Hedge”). We paid $107 million for the Convertible Note Hedge, which was recorded as an equity transaction. The Convertible Note Hedge, subject to customary anti-dilution adjustments, provided us with the option to acquire, on a net settlement basis, approximately 19.9 million shares of our common stock, equal to the number of shares of our common stock that notionally underlie the Convertible Notes at a strike price of $31.74 , which corresponds to the conversion price of the Convertible Notes. During the three and six months ended September 30, 2016 , we received 2.5 million and 2.9 million shares, respectively, of our common stock under the Convertible Note Hedge. Separately, in July 2011 we also entered into privately negotiated warrant transactions with certain counterparties whereby we sold to independent third parties warrants (the “Warrants”) to acquire, subject to customary anti-dilution adjustments that are substantially the same as the anti-dilution provisions contained in the Convertible Notes, up to 19.9 million shares of our common stock (which is also equal to the number of shares of our common stock that notionally underlie the Convertible Notes), with a strike price of $41.14 . The Warrants have a dilutive effect with respect to our common stock to the extent that the market price per share of our common stock exceeds $41.14 on or prior to the expiration date of the Warrants. The Warrants automatically exercise over a 60 trading day period that began on October 17, 2016 . Based on the closing price of our common stock of $85.40 at the end of the quarter ended September 30, 2016 , approximately 10.3 million shares of our common stock would be issuable to Warrants holders. The actual amount of shares issuable upon exercise will be determined based upon the market price of our common stock during the 60 day trading period that began on October 17, 2016 . We received proceeds of $65 million from the sale of the Warrants in fiscal year 2012. Effect of conversion on earning per share (“EPS”) Prior to conversion of the Convertible Notes, we included the effect of the additional potential dilutive shares if our common stock price exceeded $31.74 per share using the treasury stock method. If the average price of our common stock exceeds $41.14 per share for a quarterly period, we also include the effect of the additional potential dilutive shares related to the Warrants using the treasury stock method. Prior to conversion, the Convertible Note Hedge was not considered for purposes of the EPS calculation, as its effect would have been anti-dilutive. Upon conversion, the Convertible Note Hedge offset the dilutive effect of the Notes when the stock price was above $31.74 per share. See Note 13 for additional information related to our EPS. Senior Notes In February 2016 , we issued $600 million aggregate principal amount of 3.70% Senior Notes due March 1, 2021 (the “2021 Notes”) and $400 million aggregate principal amount of 4.80% Senior Notes due March 1, 2026 (the “2026 Notes,” and together with the 2021 Notes, the “Senior Notes”). Our proceeds were $989 million , net of discount of $2 million and issuance costs of $9 million . Both the discount and issuance costs are being amortized to interest expense over the respective terms of the 2021 Notes and the 2026 Notes using the effective interest rate method. The effective interest rate was 3.94% for the 2021 Notes and 4.97% for the 2026 Notes. Interest is payable semiannually in arrears, on March 1 and September 1 of each year. The carrying and fair values of the Senior Notes are as follows (in millions): As of As of Senior Notes: 3.70% Senior Notes due 2021 $ 600 $ 600 4.80% Senior Notes due 2026 400 400 Total principal amount $ 1,000 $ 1,000 Unaccreted discount (2 ) (2 ) Unamortized debt issuance costs (8 ) (9 ) Net carrying value of Senior Notes $ 990 $ 989 Fair value of Senior Notes (Level 2) $ 1,082 $ 1,039 As of September 30, 2016 , the remaining life of the 2021 Notes and 2026 Notes is approximately 4.4 and 9.4 years, respectively. The Senior Notes are senior unsecured obligations and rank equally with all our other existing and future unsubordinated obligations and any indebtedness that we may incur from time to time under our Credit Facility. The 2021 Notes and the 2026 Notes are redeemable at our option at any time prior to February 1, 2021 or December 1, 2025, respectively, subject to a make-whole premium. Within one and three months of maturity, we may redeem the 2021 Notes or the 2026 Notes, respectively, at a redemption price equal to 100% of the aggregate principal amount plus accrued and unpaid interest. In addition, upon the occurrence of a change of control repurchase event, the holders of the Senior Notes may require us to repurchase all or a portion of the Senior Notes, at a price equal to 101% of their principal amount, plus accrued and unpaid interest to the date of repurchase. The Senior Notes also include covenants that limit our ability to incur liens on assets and to enter into sale and leaseback transactions, subject to certain allowances. Credit Facility In March 2015 , we entered into a $500 million senior unsecured revolving credit facility (“Credit Facility”) with a syndicate of banks. The Credit Facility terminates on March 19, 2020 . The Credit Facility contains an option to arrange with existing lenders and/or new lenders to provide up to an aggregate of $250 million in additional commitments for revolving loans. Proceeds of loans made under the Credit Facility may be used for general corporate purposes. The loans bear interest, at our option, at the base rate plus an applicable spread or an adjusted LIBOR rate plus an applicable spread, in each case with such spread being determined based on our consolidated leverage ratio for the preceding fiscal quarter. We are also obligated to pay other customary fees for a credit facility of this size and type. Interest is due and payable in arrears quarterly for loans bearing interest at the base rate and at the end of an interest period (or at each three month interval in the case of loans with interest periods greater than three months) in the case of loans bearing interest at the adjusted LIBOR rate. Principal, together with all accrued and unpaid interest, is due and payable on March 19, 2020 . The credit agreement contains customary affirmative and negative covenants, including covenants that limit or restrict our ability to, among other things, incur subsidiary indebtedness, grant liens, dispose of all or substantially all assets and pay dividends or make distributions, in each case subject to customary exceptions for a credit facility of this size and type. We are also required to maintain compliance with a capitalization ratio and maintain a minimum level of total liquidity. The credit agreement contains customary events of default, including among others, non-payment defaults, covenant defaults, cross-defaults to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults and a change of control default, in each case, subject to customary exceptions for a credit facility of this size and type. The occurrence of an event of default could result in the acceleration of the obligations under the credit facility, an obligation by any guarantors to repay the obligations in full and an increase in the applicable interest rate. As of September 30, 2016 , no amounts were outstanding under the Credit Facility. $2 million of debt issuance costs that were paid in connection with obtaining this credit facility are being amortized to interest expense over the 5 -year term of the Credit Facility. Interest Expense The following table summarizes our interest expense recognized for the three and six months ended September 30, 2016 and 2015 that is included in interest and other income (expense), net on our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Six Months Ended 2016 2015 2016 2015 Amortization of debt discount (1 ) (5 ) (2 ) (11 ) Amortization of debt issuance costs — — (1 ) (1 ) Coupon interest expense (10 ) (1 ) (21 ) (2 ) Total interest expense $ (11 ) $ (6 ) $ (24 ) $ (14 )

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	(11) COMMITMENTS AND CONTINGENCIES Lease Commitments As of September 30, 2016 , we leased certain facilities, furniture and equipment under non-cancelable operating lease agreements. We were required to pay property taxes, insurance and normal maintenance costs for certain of these facilities and any increases over the base year of these expenses on the remainder of our facilities. Development, Celebrity, League and Content Licenses: Payments and Commitments The products we produce in our studios are designed and created by our employee designers, artists, software programmers and by non-employee software developers (“independent artists” or “third-party developers”). We typically advance development funds to the independent artists and third-party developers during development of our games, usually in installment payments made upon the completion of specified development milestones. Contractually, these payments are generally considered advances against subsequent royalties on the sales of the products. These terms are set forth in written agreements entered into with the independent artists and third-party developers. In addition, we have certain celebrity, league and content license contracts that contain minimum guarantee payments and marketing commitments that may not be dependent on any deliverables. Celebrities and organizations with whom we have contracts include, but are not limited to: FIFA (Fédération Internationale de Football Association), FIFPRO Foundation, FAPL (Football Association Premier League Limited), and DFL Deutsche Fußball Liga GmbH (German Soccer League) (professional soccer); Dr. Ing. h.c. F. Porsche AG, Ferrari S.p.A. (Need For Speed and Real Racing games); National Basketball Association (professional basketball); PGA TOUR (professional golf); National Hockey League and NHL Players’ Association (professional hockey); National Football League Properties and PLAYERS Inc. (professional football); Zuffa, LLC (Ultimate Fighting Championship); ESPN (content in EA SPORTS games); Disney Interactive (Star Wars); Fox Digital Entertainment, Inc. (The Simpsons); Universal Studios Inc. (Pets); and Respawn. These developer and content license commitments represent the sum of (1) the cash payments due under non-royalty-bearing licenses and services agreements and (2) the minimum guaranteed payments and advances against royalties due under royalty-bearing licenses and services agreements, the majority of which are conditional upon performance by the counterparty. These minimum guarantee payments and any related marketing commitments are included in the table below. The following table summarizes our minimum contractual obligations as of September 30, 2016 (in millions): Fiscal Years Ending March 31, 2017 (Remaining Total six mos.) 2018 2019 2020 2021 2022 Thereafter Unrecognized commitments Developer/licensor commitments $ 1,427 $ 66 $ 315 $ 300 $ 251 $ 210 $ 206 $ 79 Marketing commitments 503 29 79 111 91 93 74 26 Operating leases 234 16 38 34 31 29 23 63 Senior Notes interest 278 17 41 41 41 41 19 78 Other purchase obligations 93 25 18 13 9 7 4 17 Total unrecognized commitments 2,535 153 491 499 423 380 326 263 Recognized commitments Senior Notes principal and interest 1,004 4 — — — 600 — 400 Licensing and lease obligations (a) 136 11 23 24 25 26 27 — Total recognized commitments 1,140 15 23 24 25 626 27 400 Total commitments $ 3,675 $ 168 $ 514 $ 523 $ 448 $ 1,006 $ 353 $ 663 (a) Lease commitments have not been reduced for approximately $1 million due in the future from third parties under non-cancelable sub-leases. See Note 7 for additional information regarding recognized obligations from our licensing-related commitments. The unrecognized amounts represented in the table above reflect our minimum cash obligations for the respective fiscal years, but do not necessarily represent the periods in which they will be recognized and expensed in our Condensed Consolidated Financial Statements. In addition, the amounts in the table above are presented based on the dates the amounts are contractually due as of September 30, 2016 ; however, certain payment obligations may be accelerated depending on the performance of our operating results. Furthermore, up to $32 million of the unrecognized amounts in the table above may be payable, at the licensor’s election, in shares of our common stock, subject to a $10 million maximum during any fiscal year. The number of shares to be issued will be based on fair market value at the time of issuance. In addition to what is included in the table above, as of September 30, 2016 , we had a liability for unrecognized tax benefits and an accrual for the payment of related interest totaling $86 million , of which we are unable to make a reasonably reliable estimate of when cash settlement with a taxing authority will occur. Legal Proceedings On July 29, 2010, Michael Davis, a former NFL running back, filed a putative class action in the United States District Court for the Northern District of California against the Company, alleging that certain past versions of Madden NFL included the images of certain retired NFL players without their permission. In March 2012, the trial court denied the Company’s request to dismiss the complaint on First Amendment grounds. In January 2015, that trial court decision was affirmed by the Ninth Circuit Court of Appeals and the case was remanded back to the United States District Court for the Northern District of California, where the case is pending. We are also subject to claims and litigation arising in the ordinary course of business. We do not believe that any liability from any reasonably foreseeable disposition of such claims and litigation, individually or in the aggregate, would have a material adverse effect on our Condensed Consolidated Financial Statements.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Sep. 30, 2016
Share-based Compensation [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	(12) STOCK-BASED COMPENSATION Valuation Assumptions We estimate the fair value of stock-based awards on the date of grant. We recognize compensation costs for stock-based awards to employees based on the grant-date fair value using a straight-line approach over the service period for which such awards are expected to vest. The determination of the fair value of market-based restricted stock units, stock options and ESPP purchase rights is affected by assumptions regarding subjective and complex variables. Generally, our assumptions are based on historical information and judgment is required to determine if historical trends may be indicators of future outcomes. We determine the fair value of our stock-based awards as follows: • Restricted Stock Units . The fair value of restricted stock units is determined based on the quoted market price of our common stock on the date of grant. • Market-Based Restricted Stock Units . Market-based restricted stock units consist of grants of performance-based restricted stock units to certain members of executive management that vest contingent upon the achievement of pre-determined market and service conditions (referred to herein as “market-based restricted stock units”). The fair value of our market-based restricted stock units is determined using a Monte-Carlo simulation model. Key assumptions for the Monte-Carlo simulation model are the risk-free interest rate, expected volatility, expected dividends and correlation coefficient. • Stock Options and Employee Stock Purchase Plan . The fair value of stock options and stock purchase rights granted pursuant to our equity incentive plans and our 2000 Employee Stock Purchase Plan, as amended (“ESPP”), respectively, is determined using the Black-Scholes valuation model based on the multiple-award valuation method. Key assumptions of the Black-Scholes valuation model are the risk-free interest rate, expected volatility, expected term and expected dividends. The risk-free interest rate is based on U.S. Treasury yields in effect at the time of grant for the expected term of the option. Expected volatility is based on a combination of historical stock price volatility and implied volatility of publicly-traded options on our common stock. Expected term is determined based on historical exercise behavior, post-vesting termination patterns, options outstanding and future expected exercise behavior. There were an insignificant number of stock options granted during the three and six months ended September 30, 2016 and 2015 . The estimated assumptions used in the Black-Scholes valuation model to value our ESPP purchase rights were as follows: ESPP Purchase Rights Three Months Ended 2016 2015 Risk-free interest rate 0.5 - 0.6% 0.3 - 0.4% Expected volatility 29 - 32% 32 % Weighted-average volatility 31 % 32 % Expected term 6 - 12 months 6 - 11.5 months Expected dividends None None There were no market-based restricted stock units granted during the three months ended September 30, 2016 and 2015 . Stock-Based Compensation Expense Employee stock-based compensation expense recognized during the three and six months ended September 30, 2016 and 2015 was calculated based on awards ultimately expected to vest and has been reduced for estimated forfeitures. In subsequent periods, if actual forfeitures differ from those estimates, an adjustment to stock-based compensation expense will be recognized at that time. The following table summarizes stock-based compensation expense resulting from stock options, restricted stock units, market-based restricted stock units, and the ESPP purchase rights included in our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Six Months Ended 2016 2015 2016 2015 Cost of revenue $ 1 $ 1 $ 2 $ 1 Research and development 27 $ 25 54 51 Marketing and sales 8 7 15 12 General and administrative 12 11 25 25 Stock-based compensation expense $ 48 $ 44 $ 96 $ 89 During the three months ended September 30, 2016 , we recognized a $9 million deferred income tax benefit related to our stock-based compensation expense. During the three months ended September 30, 2015 , we did not recognize any benefit from income taxes related to our stock-based compensation expense due to the U.S. valuation allowance. During the six months ended September 30, 2016 , we recognized an $18 million deferred income tax benefit related to our stock-based compensation expense. During the six months ended September 30, 2015 , we did not recognize any benefit from income taxes related to our stock-based compensation expense due to the U.S. valuation allowance. As of September 30, 2016 , our total unrecognized compensation cost related to restricted stock units and market-based restricted stock units was $352 million and is expected to be recognized over a weighted-average service period of 1.8 years . Of the $352 million of unrecognized compensation cost, $49 million relates to market-based restricted stock units. As of September 30, 2016 , our total unrecognized compensation cost related to stock options was $5 million and is expected to be recognized over a weighted-average service period of 1.0 year . During the three and six months ended September 30, 2016 , we recognized $4 million and $37 million , respectively, of excess tax benefit from stock-based compensation deductions; this amount is reported in the financing activities on our Condensed Consolidated Statement of Cash Flows. During the three and six months ended September 30, 2015 , we recognized $25 million and $65 million , respectively, of excess tax benefit from stock-based compensation deductions; this amount is reported in the financing activities on our Condensed Consolidated Statement of Cash Flows. Stock Options The following table summarizes our stock option activity for the six months ended September 30, 2016 : Options (in thousands) Weighted- Average Exercise Prices Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in millions) Outstanding as of March 31, 2016 3,278 $ 35.09 Granted 3 69.77 Exercised (318 ) 30.06 Forfeited, cancelled or expired (31 ) 35.84 Outstanding as of September 30, 2016 2,932 $ 35.66 5.04 $ 146 Vested and expected to vest 2,874 $ 35.75 4.99 $ 143 Exercisable as of September 30, 2016 2,337 $ 36.83 4.44 $ 114 The aggregate intrinsic value represents the total pre-tax intrinsic value based on our closing stock price as of September 30, 2016 , which would have been received by the option holders had all the option holders exercised their options as of that date. We issue new common stock from our authorized shares upon the exercise of stock options. Restricted Stock Units The following table summarizes our restricted stock unit activity for the six months ended September 30, 2016 : Restricted Stock Rights (in thousands) Weighted- Average Grant Date Fair Values Outstanding as of March 31, 2016 7,157 $ 44.04 Granted 2,330 75.31 Vested (3,384 ) 35.43 Forfeited or cancelled (364 ) 55.26 Outstanding as of September 30, 2016 5,739 $ 61.10 The weighted-average grant date fair values of restricted stock units granted during the three and six months ended September 30, 2016 were $79.16 and $75.31 , respectively. Market-Based Restricted Stock Units Our market-based restricted stock units vest contingent upon the achievement of pre-determined market and service conditions. If these market conditions are not met but service conditions are met, the market-based restricted stock units will not vest; however, any compensation expense we have recognized to date will not be reversed. The number of shares of common stock to be received at vesting will range from zero percent to 200 percent of the target number of market-based restricted stock units based on our total stockholder return (“TSR”) relative to the performance of companies in the NASDAQ-100 Index for each measurement period, generally over a one-year, two-year cumulative and three-year cumulative period. In the table below, we present shares granted at 100 percent of target of the number of market-based restricted stock units that may potentially vest. The maximum number of shares of common stock that could vest is approximately 0.7 million for market-based restricted stock units granted during the six months ended September 30, 2016 . As of September 30, 2016 , the maximum number of shares that could vest is approximately 1.3 million for market-based restricted stock units outstanding. The following table summarizes our market-based restricted stock unit activity for the six months ended September 30, 2016 : Market-Based Restricted Stock Units (in thousands) Weighted- Average Grant Date Fair Value Outstanding as of March 31, 2016 636 $ 64.49 Granted 353 98.04 Vested (558 ) 50.08 Vested above target 238 44.99 Forfeited or cancelled (15 ) 86.39 Outstanding as of September 30, 2016 654 $ 87.29 Stock Repurchase Program In May 2014, a special committee of our Board of Directors, on behalf of the full Board of Directors, authorized a two-year program to repurchase up to $750 million of our common stock. Since inception, we repurchased approximately 9.2 million shares for approximately $394 million under this program. In May 2015, our Board of Directors authorized a program to repurchase up to $1 billion of our common stock. This stock repurchase program, which expires on May 31, 2017, supersedes and replaces the stock repurchase authorization approved in May 2014. Under this program, we may purchase stock in the open market or through privately-negotiated transactions in accordance with applicable securities laws, including pursuant to pre-arranged stock trading plans. The timing and actual amount of the stock repurchases will depend on several factors including price, capital availability, regulatory requirements, alternative investment opportunities and other market conditions. We are not obligated to repurchase any specific number of shares under this program and it may be modified, suspended or discontinued at any time. During the three and six months ended September 30, 2016 , we repurchased approximately 1.6 million and 3.5 million shares for approximately $127 million and $256 million , respectively. We continue to actively repurchase shares. The following table summarizes total shares repurchased during the three and six months ended September 30, 2016 and 2015 : May 2014 Program May 2015 Program Total (in millions) Shares Amount Shares Amount Shares Amount Three months ended September 30, 2016 — $ — 1.6 $ 127 1.6 $ 127 Six months ended September 30, 2016 — $ — 3.5 $ 256 3.5 $ 256 Three months ended September 30, 2015 — $ — 1.8 $ 126 1.8 $ 126 Six months ended September 30, 2015 1.0 $ 57 3.0 $ 201 4.0 $ 258

Earnings (Loss) Per Share

Earnings (Loss) Per Share	6 Months Ended
	Sep. 30, 2016
Earnings Per Share Reconciliation [Abstract]
Earnings (Loss) Per Share	(13) EARNINGS (LOSS) PER SHARE The following table summarizes the computations of basic earnings per share (“Basic EPS”) and diluted earnings per share (“Diluted EPS”). Basic EPS is computed as net income divided by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur from common shares issuable through stock-based compensation plans including stock options, restricted stock, restricted stock units, ESPP purchase rights, warrants, and other convertible securities using the treasury stock method. Three Months Ended September 30, Six Months Ended September 30, (In millions, except per share amounts) 2016 2015 2016 2015 Net income (loss) $ (38 ) $ (140 ) $ 402 $ 302 Shares used to compute earnings (loss) per share: Weighted-average common stock outstanding — basic 301 312 301 311 Dilutive potential common shares related to stock award plans and from assumed exercise of stock options — — 3 7 Dilutive potential common shares related to the Convertible Notes — — 2 9 Dilutive potential common shares related to the Warrants — — 9 7 Weighted-average common stock outstanding — diluted 301 312 315 334 Earnings (loss) per share: Basic $ (0.13 ) $ (0.45 ) $ 1.34 $ 0.97 Diluted $ (0.13 ) $ (0.45 ) $ 1.28 $ 0.90 As a result of our net loss for the three months ended September 30, 2016 , we have excluded all potentially dilutive common shares from the diluted loss per share calculation as their inclusion would have had an antidilutive effect. Had we reported net income for this period, an additional 3 million shares of common stock related to our outstanding equity-based instruments and an additional 10 million shares related to the Warrants would have been included in the number of shares used to calculate Diluted EPS for the three months ended September 30, 2016 . As a result of our net loss for the three months ended September 30, 2015 , we have excluded all potentially dilutive common shares from the diluted loss per share calculation as their inclusion would have had an antidilutive effect. Had we reported net income for this period, an additional 6 million shares of common stock related to our outstanding equity-based instruments, an additional 7 million shares of common stock related to the Notes, and an additional 8 million shares related to the Warrants would have been included in the number of shares used to calculate Diluted EPS for the three months ended September 30, 2015 . For the six months ended September 30, 2016 and 2015 , an immaterial amount of options to purchase, restricted stock units and restricted stock to be released were excluded from the treasury stock method computation of diluted shares as their inclusion would have had an antidilutive effect.

Description Of Business And B20

Description Of Business And Basis Of Presentation (Policies)	6 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Impact of recently issued accounting standards	Impact of Recently Issued Accounting Standards In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718) : Improvements to Employee Share-Based Payment Accounting , related to simplifications of employee share-based payment accounting. This pronouncement eliminates the APIC pool concept and requires that excess tax benefits and tax deficiencies be recorded in the income statement when awards are settled. The pronouncement also addresses simplifications related to statement of cash flows classification, accounting for forfeitures, and minimum statutory tax withholding requirements. The pronouncement is effective for annual periods (and for interim periods within those annual periods) beginning after December 15, 2016. We are currently evaluating the timing and the impact of this new standard on our Consolidated Financial Statements and related disclosures. In January 2016, the FASB issued ASU 2016-01, Financial Instruments (Topic 825-10), which requires that most equity investments be measured at fair value, with subsequent changes in fair value recognized in net income. The ASU also impacts financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. The requirements will be effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. We are currently evaluating the impact of this new standard on our Consolidated Financial Statements and related disclosures. In March 2016, the FASB issued ASU 2016-04, Liabilities – Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products . The amendments in the ASU are designed to provide guidance and eliminate diversity in the accounting for derecognition of prepaid stored-value product liabilities. Typically, a prepaid stored-value product liability is to be derecognized when it is probable that a significant reversal of the recognized breakage amount will not subsequently occur. This is when the likelihood of the product holder exercising its remaining rights becomes remote. This estimate shall be updated at the end of each period. The amendments in this ASU are effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. Early adoption is permitted. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Financial Statements and related disclosures. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This update is intended to reduce the existing diversity in practice in how certain transactions are classified in the statement of cash flows. This update is effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. Early adoption is permitted, provided that all of the amendments are adopted in the same period. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Statements of Cash Flows. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The standard permits the use of either the retrospective or cumulative effect transition method. This new revenue standard, as amended by ASU 2015-14, is effective in the first quarter of fiscal year 2019. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , which clarifies the guidance in the new revenue standard on assessing whether an entity is a principal or an agent in a revenue transaction. This conclusion impacts whether an entity reports revenue on a gross or net basis. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing, which clarifies the guidance in the new revenue standard regarding an entity’s identification of its performance obligations in a contract, as well as an entity’s evaluation of the nature of its promise to grant a license of intellectual property and whether or not that revenue is recognized over time or at a point in time. In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers : Narrow-Scope Improvements and Practical Expedients, which amends the guidance in the new revenue standard on collectibility, noncash consideration, presentation of sales tax, and transition. The amendments are intended to address implementation issues that were raised by stakeholders and provide additional practical expedients to reduce the cost and complexity of applying the new revenue standard. These amendments have the same effective date as the new revenue standard. While we are currently evaluating the method of adoption and the impact of the new revenue standard, as amended, on our Consolidated Financial Statements and related disclosures, we believe the adoption of the new standard will have a significant impact on the accounting for certain transactions with multiple elements or “bundled” arrangements (for example, sales of online-enabled games for which we do not have vendor-specific objective evidence of fair value (“VSOE”) for unspecified future updates) because the requirement to have VSOE for undelivered elements under current accounting standards is eliminated under the new standard. Accordingly, we may be required to recognize as revenue a portion of the sales price upon delivery of the software, as compared to the current requirement of recognizing the entire sales price ratably over an estimated offering period. In addition, based upon what we expect to be our performance obligations under the new standard, as amended, we believe that upon adoption, a larger portion of our bundled arrangements will be presented as service revenue instead of product revenue in our Consolidated Statements of Operations. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The FASB issued this update to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The updated guidance is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption of the update is permitted. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Financial Statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). The standard changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for fiscal years, and interim periods within those years, beginning after December 15, 2018. We are currently evaluating the timing of adoption and impact of this new standard on our Consolidated Financial Statements and related disclosures.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Assets And Liabilities Measured On Recurring Basis	Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Financial Instruments Significant Other Observable Inputs Significant Unobservable Inputs As of (Level 1) (Level 2) (Level 3) Balance Sheet Classification Assets Bank and time deposits $ 345 $ 345 $ — $ — Cash equivalents Money market funds 143 143 — — Cash equivalents Available-for-sale securities: Corporate bonds 623 — 623 — Short-term investments and cash equivalents U.S. Treasury securities 407 407 — — Short-term investments and cash equivalents U.S. agency securities 170 — 170 — Short-term investments and cash equivalents Commercial paper 81 — 81 — Short-term investments and cash equivalents Foreign government securities 122 — 122 — Short-term investments and cash equivalents Foreign currency derivatives 16 — 16 — Other current assets and other assets Deferred compensation plan assets (a) 8 8 — — Other assets Total assets at fair value $ 1,915 $ 903 $ 1,012 $ — Liabilities Foreign currency derivatives 10 — 10 — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 9 9 — — Other liabilities Total liabilities at fair value $ 19 $ 9 $ 10 $ — Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Financial Instruments Significant Other Observable Inputs Significant Unobservable Inputs As of (Level 1) (Level 2) (Level 3) Balance Sheet Classification Assets Bank and time deposits $ 236 $ 236 $ — $ — Cash equivalents Money market funds 185 185 — — Cash equivalents Available-for-sale securities: Corporate bonds 739 — 739 — Short-term investments U.S. Treasury securities 379 379 — — Short-term investments U.S. agency securities 163 — 163 — Short-term investments and cash equivalents Commercial paper 110 — 110 — Short-term investments and cash equivalents Foreign government securities 115 — 115 — Short-term investments Asset-backed securities 54 — 54 — Short-term investments Foreign currency derivatives 33 — 33 — Other current assets and other assets Deferred compensation plan assets (a) 9 9 — — Other assets Total assets at fair value $ 2,023 $ 809 $ 1,214 $ — Liabilities Foreign currency derivatives 11 — 11 — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 10 10 — — Other liabilities Total liabilities at fair value $ 21 $ 10 $ 11 $ —

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Sep. 30, 2016
Financial Instruments [Abstract]
Fair Value Of Short-Term Investments	Short-term investments consisted of the following as of September 30, 2016 and March 31, 2016 (in millions): As of September 30, 2016 As of March 31, 2016 Cost or Amortized Cost Gross Unrealized Fair Value Cost or Amortized Cost Gross Unrealized Fair Value Gains Losses Gains Losses Corporate bonds $ 738 $ 1 $ — $ 739 $ 620 $ 1 $ — $ 621 U.S. Treasury securities 378 1 — 379 389 1 — 390 U.S. agency securities 154 — — 154 167 — — 167 Commercial paper 79 — — 79 50 — — 50 Foreign government securities 115 — — 115 113 — — 113 Asset-backed securities 54 — — 54 — — — — Short-term investments $ 1,518 $ 2 $ — $ 1,520 $ 1,339 $ 2 $ — $ 1,341
Fair Value Of Short-Term Investments By Stated Maturity Date Schedule	The following table summarizes the amortized cost and fair value of our short-term investments, classified by stated maturity as of September 30, 2016 and March 31, 2016 (in millions): As of September 30, 2016 As of March 31, 2016 Amortized Cost Fair Value Amortized Cost Fair Value Short-term investments Due in 1 year or less $ 749 $ 749 $ 571 $ 571 Due in 1-2 years 415 416 461 462 Due in 2-3 years 295 296 295 296 Due in 3-4 years 59 59 12 12 Short-term investments $ 1,518 $ 1,520 $ 1,339 $ 1,341

Derivative Financial Instrume23

Derivative Financial Instruments (Tables)	6 Months Ended
	Sep. 30, 2016
Derivative Financial Instruments [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	Total gross notional amounts and fair values for currency derivatives with cash flow hedge accounting designation are as follows (in millions): As of September 30, 2016 As of March 31, 2016 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 137 $ — $ 2 $ 148 $ 5 $ 1 Forward contracts to sell $ 936 $ 33 $ 9 $ 685 $ 11 $ 9
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	Total gross notional amounts and fair values for currency derivatives that are not designated as hedging instruments are accounted for as follows (in millions): As of September 30, 2016 As of March 31, 2016 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 89 $ — $ — $ 108 $ — $ — Forward contracts to sell $ 485 $ — $ — $ 159 $ — $ —

Accumulated Other Comprehensi24

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Components of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The changes in accumulated other comprehensive income (loss) by component, net of tax, for the three months ended September 30, 2016 and 2015 are as follows (in millions): Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of June 30, 2016 $ 3 $ 36 $ (36 ) $ 3 Other comprehensive income (loss) before reclassifications (1 ) (1 ) (6 ) (8 ) Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (4 ) — (5 ) Total other comprehensive income (loss), net of tax (2 ) (5 ) (6 ) (13 ) Balance as of September 30, 2016 $ 1 $ 31 $ (42 ) $ (10 ) Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of June 30, 2015 $ (4 ) $ 5 $ (15 ) $ (14 ) Other comprehensive income (loss) before reclassifications 2 5 (32 ) (25 ) Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (4 ) — (5 ) Total other comprehensive income (loss), net of tax 1 1 (32 ) (30 ) Balance as of September 30, 2015 $ (3 ) $ 6 $ (47 ) $ (44 ) The changes in accumulated other comprehensive income (loss) by component, net of tax, for the six months ended September 30, 2016 and 2015 are as follows (in millions): Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of March 31, 2016 $ 1 $ 14 $ (31 ) $ (16 ) Other comprehensive income (loss) before reclassifications 1 27 (11 ) 17 Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (10 ) — (11 ) Total other comprehensive income (loss), net of tax — 17 (11 ) 6 Balance as of September 30, 2016 $ 1 $ 31 $ (42 ) $ (10 ) Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of March 31, 2015 $ (3 ) $ 21 $ (16 ) $ 2 Other comprehensive income (loss) before reclassifications 1 (8 ) (31 ) (38 ) Amounts reclassified from accumulated other comprehensive income (loss) (1 ) (7 ) — (8 ) Total other comprehensive income (loss), net of tax — (15 ) (31 ) (46 ) Balance as of September 30, 2015 $ (3 ) $ 6 $ (47 ) $ (44 )
Reclassification out of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and six months ended September 30, 2016 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended Six Months Ended (Gains) losses on available-for-sale securities Interest and other income (expense), net $ (1 ) $ (1 ) Net of tax $ (1 ) $ (1 ) (Gains) losses on cash flow hedges from forward contracts Net revenue $ (4 ) $ (9 ) Research and development — (1 ) Net of tax $ (4 ) $ (10 ) Total (gain) loss reclassified, net of tax $ (5 ) $ (11 ) The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and six months ended September 30, 2015 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended Six Months Ended (Gains) losses on available-for-sale securities Interest and other income (expense), net $ (1 ) $ (1 ) Net of tax $ (1 ) $ (1 ) (Gains) losses on cash flow hedges from forward contracts Net revenue $ (6 ) $ (14 ) Research and development 2 7 Net of tax $ (4 ) $ (7 ) Total (gain) loss reclassified, net of tax $ (5 ) $ (8 )

Goodwill And Acquisition-Rela25

Goodwill And Acquisition-Related Intangibles, Net (Tables)	6 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule Of Changes In The Carrying Amount Of Goodwill	The changes in the carrying amount of goodwill for the six months ended September 30, 2016 are as follows (in millions): As of Activity Effects of Foreign Currency Translation As of Goodwill $ 2,078 $ — $ (1 ) $ 2,077 Accumulated impairment (368 ) — — (368 ) Total $ 1,710 $ — $ (1 ) $ 1,709
Schedule Of Acquisition-Related Intangibles	Acquisition-related intangibles consisted of the following (in millions): As of September 30, 2016 As of March 31, 2016 Gross Carrying Amount Accumulated Amortization Acquisition- Related Intangibles, Net Gross Carrying Amount Accumulated Amortization Acquisition- Related Intangibles, Net Developed and core technology $ 412 $ (395 ) $ 17 $ 412 $ (368 ) $ 44 Trade names and trademarks 106 (95 ) 11 106 (93 ) 13 Registered user base and other intangibles 5 (5 ) — 5 (5 ) — Carrier contracts and related 85 (85 ) — 85 (85 ) — Total $ 608 $ (580 ) $ 28 $ 608 $ (551 ) $ 57
Schedule Of Amoritization Of Intangibles	Amortization of intangibles for the three and six months ended September 30, 2016 and 2015 are classified in the Condensed Consolidated Statement of Operations as follows (in millions): Three Months Ended Six Months Ended 2016 2015 2016 2015 Cost of service and other $ 8 $ 8 $ 16 $ 16 Cost of product 4 3 9 7 Operating expenses 1 3 3 4 Total $ 13 $ 14 $ 28 $ 27
Schedule Of Future Amortization Of Acquisition-Related Intangibles	As of September 30, 2016 , future amortization of acquisition-related intangibles that will be recorded in the Condensed Consolidated Statement of Operations is estimated as follows (in millions): Fiscal Year Ending March 31, 2017 (remaining six months) $ 9 2018 17 2019 2 Total $ 28

Royalties And Licenses (Tables)

Royalties And Licenses (Tables)	6 Months Ended
	Sep. 30, 2016
Royalties And Licenses [Abstract]
Schedule Of Royalty-Related Assets	The current and long-term portions of prepaid royalties and minimum guaranteed royalty-related assets, included in other current assets and other assets, consisted of (in millions): As of As of Other current assets $ 69 $ 54 Other assets 54 63 Royalty-related assets $ 123 $ 117
Schedule Of Royalty-Related Liabilities	The current and long-term portions of accrued royalties, included in accrued and other current liabilities and other liabilities, consisted of (in millions): As of As of Accrued royalties $ 162 $ 159 Other liabilities 111 118 Royalty-related liabilities $ 273 $ 277

Balance Sheet Details (Tables)

Balance Sheet Details (Tables)	6 Months Ended
	Sep. 30, 2016
Balance Sheet Related Disclosures [Abstract]
Inventories Schedule	Inventories as of September 30, 2016 and March 31, 2016 consisted of (in millions): As of As of Finished goods $ 41 $ 32 Raw materials and work in process 9 1 Inventories $ 50 $ 33
Property And Equipment, Net Schedule	Property and equipment, net, as of September 30, 2016 and March 31, 2016 consisted of (in millions): As of As of Computer, equipment and software $ 709 $ 684 Buildings 315 313 Leasehold improvements 129 129 Equipment, furniture and fixtures, and other 81 80 Land 61 61 Construction in progress 3 15 1,298 1,282 Less: accumulated depreciation (867 ) (843 ) Property and equipment, net $ 431 $ 439
Accrued And Other Current Liabilities Schedule	Accrued and other current liabilities as of September 30, 2016 and March 31, 2016 consisted of (in millions): As of As of Other accrued expenses $ 289 $ 218 Accrued compensation and benefits 175 256 Accrued royalties 162 159 Deferred net revenue (other) 151 77 Accrued and other current liabilities $ 777 $ 710

Financing Arrangement (Tables)

Financing Arrangement (Tables)	6 Months Ended
	Sep. 30, 2016
Debt Instruments [Abstract]
Carrying Values Of Liability And Equity Components Of Notes	The carrying and fair values of the Convertible Notes are as follows (in millions): As of As of Principal amount of Convertible Notes $ — $ 163 Unamortized debt discount of the liability component — (2 ) Net carrying value of Convertible Notes $ — $ 161 Fair value of Convertible Notes (Level 2) $ — $ 338
Schedule of Carrying Values Of Liability and Equity Components of Senior Notes [Table Text Block]	The carrying and fair values of the Senior Notes are as follows (in millions): As of As of Senior Notes: 3.70% Senior Notes due 2021 $ 600 $ 600 4.80% Senior Notes due 2026 400 400 Total principal amount $ 1,000 $ 1,000 Unaccreted discount (2 ) (2 ) Unamortized debt issuance costs (8 ) (9 ) Net carrying value of Senior Notes $ 990 $ 989 Fair value of Senior Notes (Level 2) $ 1,082 $ 1,039
Schedule Of Interest Expense	The following table summarizes our interest expense recognized for the three and six months ended September 30, 2016 and 2015 that is included in interest and other income (expense), net on our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Six Months Ended 2016 2015 2016 2015 Amortization of debt discount (1 ) (5 ) (2 ) (11 ) Amortization of debt issuance costs — — (1 ) (1 ) Coupon interest expense (10 ) (1 ) (21 ) (2 ) Total interest expense $ (11 ) $ (6 ) $ (24 ) $ (14 )

Commitments And Contingencies (

Commitments And Contingencies (Tables)	6 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Minimum Contractual Obligations	The following table summarizes our minimum contractual obligations as of September 30, 2016 (in millions): Fiscal Years Ending March 31, 2017 (Remaining Total six mos.) 2018 2019 2020 2021 2022 Thereafter Unrecognized commitments Developer/licensor commitments $ 1,427 $ 66 $ 315 $ 300 $ 251 $ 210 $ 206 $ 79 Marketing commitments 503 29 79 111 91 93 74 26 Operating leases 234 16 38 34 31 29 23 63 Senior Notes interest 278 17 41 41 41 41 19 78 Other purchase obligations 93 25 18 13 9 7 4 17 Total unrecognized commitments 2,535 153 491 499 423 380 326 263 Recognized commitments Senior Notes principal and interest 1,004 4 — — — 600 — 400 Licensing and lease obligations (a) 136 11 23 24 25 26 27 — Total recognized commitments 1,140 15 23 24 25 626 27 400 Total commitments $ 3,675 $ 168 $ 514 $ 523 $ 448 $ 1,006 $ 353 $ 663

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of assumptions used in the Black-Scholes valuation model	ESPP Purchase Rights Three Months Ended 2016 2015 Risk-free interest rate 0.5 - 0.6% 0.3 - 0.4% Expected volatility 29 - 32% 32 % Weighted-average volatility 31 % 32 % Expected term 6 - 12 months 6 - 11.5 months Expected dividends None None
Schedule Of Stock-Based Compensation Expense By Statement Of Operations	Three Months Ended Six Months Ended 2016 2015 2016 2015 Cost of revenue $ 1 $ 1 $ 2 $ 1 Research and development 27 $ 25 54 51 Marketing and sales 8 7 15 12 General and administrative 12 11 25 25 Stock-based compensation expense $ 48 $ 44 $ 96 $ 89
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure Of Stock-Based Compensation Arrangements By Stock-Based Payment Award	Options (in thousands) Weighted- Average Exercise Prices Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in millions) Outstanding as of March 31, 2016 3,278 $ 35.09 Granted 3 69.77 Exercised (318 ) 30.06 Forfeited, cancelled or expired (31 ) 35.84 Outstanding as of September 30, 2016 2,932 $ 35.66 5.04 $ 146 Vested and expected to vest 2,874 $ 35.75 4.99 $ 143 Exercisable as of September 30, 2016 2,337 $ 36.83 4.44 $ 114
Restricted Stock Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure Of Stock-Based Compensation Arrangements By Stock-Based Payment Award	Restricted Stock Rights (in thousands) Weighted- Average Grant Date Fair Values Outstanding as of March 31, 2016 7,157 $ 44.04 Granted 2,330 75.31 Vested (3,384 ) 35.43 Forfeited or cancelled (364 ) 55.26 Outstanding as of September 30, 2016 5,739 $ 61.10
Market-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure Of Stock-Based Compensation Arrangements By Stock-Based Payment Award	Market-Based Restricted Stock Units (in thousands) Weighted- Average Grant Date Fair Value Outstanding as of March 31, 2016 636 $ 64.49 Granted 353 98.04 Vested (558 ) 50.08 Vested above target 238 44.99 Forfeited or cancelled (15 ) 86.39 Outstanding as of September 30, 2016 654 $ 87.29
Repurchase Program, Total [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure Of Stock-Based Compensation Arrangements By Stock-Based Payment Award	May 2014 Program May 2015 Program Total (in millions) Shares Amount Shares Amount Shares Amount Three months ended September 30, 2016 — $ — 1.6 $ 127 1.6 $ 127 Six months ended September 30, 2016 — $ — 3.5 $ 256 3.5 $ 256 Three months ended September 30, 2015 — $ — 1.8 $ 126 1.8 $ 126 Six months ended September 30, 2015 1.0 $ 57 3.0 $ 201 4.0 $ 258

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	6 Months Ended
	Sep. 30, 2016
Earnings Per Share Reconciliation [Abstract]
Computation Of Basic Earnings (Loss) And Diluted Earnings (Loss) Per Share	The following table summarizes the computations of basic earnings per share (“Basic EPS”) and diluted earnings per share (“Diluted EPS”). Basic EPS is computed as net income divided by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur from common shares issuable through stock-based compensation plans including stock options, restricted stock, restricted stock units, ESPP purchase rights, warrants, and other convertible securities using the treasury stock method. Three Months Ended September 30, Six Months Ended September 30, (In millions, except per share amounts) 2016 2015 2016 2015 Net income (loss) $ (38 ) $ (140 ) $ 402 $ 302 Shares used to compute earnings (loss) per share: Weighted-average common stock outstanding — basic 301 312 301 311 Dilutive potential common shares related to stock award plans and from assumed exercise of stock options — — 3 7 Dilutive potential common shares related to the Convertible Notes — — 2 9 Dilutive potential common shares related to the Warrants — — 9 7 Weighted-average common stock outstanding — diluted 301 312 315 334 Earnings (loss) per share: Basic $ (0.13 ) $ (0.45 ) $ 1.34 $ 0.97 Diluted $ (0.13 ) $ (0.45 ) $ 1.28 $ 0.90

Description Of Business And B32

Description Of Business And Basis Of Presentation Fiscal Period (Details)	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Fiscal Period
Current and Prior Years Fiscal Period (in weeks)			52	53
Current and Prior Years Fiscal Quarter Period (in weeks)	13	13	26	27
Minimum
Fiscal Period
Fiscal Year			52
Maximum
Fiscal Period
Fiscal Year			53

(Fair Value Of Assets And Liabi

(Fair Value Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Millions		Sep. 30, 2016	Mar. 31, 2016
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value		$ 2,023	$ 1,915
Total liabilities at fair value		21	19
Quoted Prices In Active Markets For Identical Financial Instruments (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value		809	903
Total liabilities at fair value		10	9
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value		1,214	1,012
Total liabilities at fair value		11	10
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value		0	0
Total liabilities at fair value		0	0
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | U.S. Treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities		379
Short-term investments | Significant Other Observable Inputs (Level 2) | Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities		739
Short-term investments | Significant Other Observable Inputs (Level 2) | Foreign Government Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities		115
Short-term investments | Significant Other Observable Inputs (Level 2) | Asset-backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Asset-backed securities		54
Short-Term Investments And Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | U.S. Treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities			407
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities			623
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | U.S. agency securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities		163	170
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities		110	81
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | Foreign Government Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities			122
Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Bank Time Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Cash equivalents		236	345
Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Cash equivalents		185	143
Other Current Assets and Other Assets [Domain] | Significant Other Observable Inputs (Level 2) | Foreign currency derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Foreign currency derivatives, assets		33	16
Other assets | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Deferred compensation plan assets	[1]	9	8
Accrued and Other Current Liabilities and Other Liabilities | Significant Other Observable Inputs (Level 2) | Foreign currency derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Foreign currency derivatives, liabilities		11	10
Other liabilities | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Deferred Compensation Plan Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Deferred compensation plan assets	[1]	$ 10	$ 9
[1]	The Deferred Compensation Plan assets consist of various mutual funds. See Note 15 in our Annual Report on Form 10-K for the fiscal year ended March 31, 2016, for additional information regarding our Deferred Compensation Plan.

Financial Instruments (Narrativ

Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016		Sep. 30, 2015	Mar. 31, 2015
Financial Instruments
Cash and Cash Equivalents, at Carrying Value	$ 1,746	$ 2,493	[1]	$ 1,598	$ 2,068
[1]	Derived from audited Consolidated Financial Statements.

Financial Instruments (Fair Val

Financial Instruments (Fair Value Of Short-Term Investments) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Sep. 30, 2016	Mar. 31, 2016
Financial Instruments
Fair Value	$ 1,520	$ 1,341	[1]
Short-term investments
Financial Instruments
Cost or Amortized Cost	1,518	1,339
Gross Unrealized Gains	2	2
Gross Unrealized Losses	0	0
Fair Value	1,520	1,341
Short-term investments | Corporate bonds
Financial Instruments
Cost or Amortized Cost	738	620
Gross Unrealized Gains	1	1
Gross Unrealized Losses	0	0
Fair Value	739	621
Short-term investments | U.S. Treasury securities
Financial Instruments
Cost or Amortized Cost	378	389
Gross Unrealized Gains	1	1
Gross Unrealized Losses	0	0
Fair Value	379	390
Short-term investments | U.S. agency securities
Financial Instruments
Cost or Amortized Cost	154	167
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	154	167
Short-term investments | Commercial paper
Financial Instruments
Cost or Amortized Cost	79	50
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	79	50
Short-term investments | Foreign Government Debt Securities [Member]
Financial Instruments
Cost or Amortized Cost	115	113
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	115	113
Short-term investments | Asset-backed Securities [Member]
Financial Instruments
Cost or Amortized Cost	54	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 54	$ 0
[1]	Derived from audited Consolidated Financial Statements.

Financial Instruments (Fair V36

Financial Instruments (Fair Value Of Short-Term Investments By Stated Maturity Date Schedule) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Financial Instruments
Short-term investments, Fair Value	$ 1,520	$ 1,341	[1]
Due in 1 year or less [Member]
Financial Instruments
Due in 1 year or less, Amortized Cost	749	571
Due in 1 year or less, Fair Value	749	571
Due in 1-2 years [Member]
Financial Instruments
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	415	461
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	416	462
Due in 2-3 years [Member]
Financial Instruments
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	295	295
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	296	296
Due in 3-4 years [Member]
Financial Instruments
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	59	12
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	$ 59	$ 12
[1]	Derived from audited Consolidated Financial Statements.

Derivative Financial Instrume37

Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative
Foreign Currency Forward Contracts Maximum Maturity Period			18 months
Maturity period of foreign currency forward contracts, Maximum			3 months
Cash Flow Hedging [Member]
Derivative
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net	$ 5	$ 4	$ 11	$ 7

Derivative Financial Instrume38

Derivative Financial Instruments Gross Notional Amounts and Fair Values for Currency Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Foreign exchange forward contracts to purchase [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of foreign currency contracts outstanding, Assets	$ 0	$ 5
Fair value of foreign currency contracts outstanding, Liabilities	2	1
Foreign exchange forward contracts to sell [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of foreign currency contracts outstanding, Assets	33	11
Fair value of foreign currency contracts outstanding, Liabilities	9	9
Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to purchase [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional amount	137	148
Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to sell [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional amount	936	685
United States Dollar [Member] | Not Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to purchase [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional amount	89	108
United States Dollar [Member] | Not Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to sell [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional amount	485	159
Balance Sheet Hedging [Member] | Not Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to purchase [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Asset, Current	0	0
Derivative Liability, Current	0	0
Balance Sheet Hedging [Member] | Not Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to sell [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Asset, Current	0	0
Derivative Liability, Current	$ 0	$ 0

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 3	$ (14)	$ (16)	$ 2
Other comprehensive income (loss) before reclassifications	(8)	(25)	17	(38)
Amounts reclassified from accumulated other comprehensive income (loss)	(5)	(5)	(11)	(8)
Total other comprehensive income (loss), net of tax	(13)	(30)	6	(46)
Ending balance	(10)	(44)	(10)	(44)
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	3	(4)	1	(3)
Other comprehensive income (loss) before reclassifications	(1)	2	1	1
Amounts reclassified from accumulated other comprehensive income (loss)	(1)	(1)	(1)	(1)
Total other comprehensive income (loss), net of tax	(2)	1	0	0
Ending balance	1	(3)	1	(3)
Unrealized Gains (Losses) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	36	5	14	21
Other comprehensive income (loss) before reclassifications	(1)	5	27	(8)
Amounts reclassified from accumulated other comprehensive income (loss)	(4)	(4)	(10)	(7)
Total other comprehensive income (loss), net of tax	(5)	1	17	(15)
Ending balance	31	6	31	6
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(36)	(15)	(31)	(16)
Other comprehensive income (loss) before reclassifications	(6)	(32)	(11)	(31)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0
Total other comprehensive income (loss), net of tax	(6)	(32)	(11)	(31)
Ending balance	$ (42)	$ (47)	$ (42)	$ (47)

Effects on net income of amount

Effects on net income of amounts reclassified from accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	$ (5)	$ (5)	$ (11)	$ (8)
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	(1)	(1)	(1)	(1)
Unrealized Gains (Losses) on Available-for-Sale Securities [Member] | Interest Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	(1)	(1)	(1)	(1)
Unrealized Gains (Losses) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	(4)	(4)	(10)	(7)
Unrealized Gains (Losses) on Derivative Instruments [Member] | Sales Revenue, Net
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	(4)	(6)	(9)	(14)
Unrealized Gains (Losses) on Derivative Instruments [Member] | Research And Development [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	$ 0	$ 2	$ (1)	$ 7

Goodwill And Acquisition-Rela41

Goodwill And Acquisition-Related Intangibles, Net (Narrative) (Details)	6 Months Ended	12 Months Ended
	Sep. 30, 2016	Mar. 31, 2016
Minimum
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	14 years
Weighted Average
Finite-Lived Intangible Assets
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	1 year 7 months	1 year 7 months

Goodwill And Acquisition-Rela42

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Changes In The Carrying Amount Of Goodwill) (Details) $ in Millions	6 Months Ended
	Sep. 30, 2016USD ($)
Goodwill [Roll Forward]
Goodwill, Gross, Beginning balance	$ 2,078
Accumulated impairment, beginning balance	(368)
Goodwill, Net, Beginning balance	1,710	[1]
Goodwill acquired	0
Effects of foreign currency translation	(1)
Goodwill, Gross, Ending balance	2,077
Accumulated impairment, ending balance	(368)
Goodwill, Net, Ending balance	$ 1,709
[1]	Derived from audited Consolidated Financial Statements.

Goodwill And Acquisition-Rela43

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Acquisition-Related Intangibles) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Finite-Lived Intangible Assets
Gross carrying amount	$ 608	$ 608
Accumulated amortization	(580)	(551)
Acquisition-related intangibles, net	28	57	[1]
Developed And Core Technology
Finite-Lived Intangible Assets
Gross carrying amount	412	412
Accumulated amortization	(395)	(368)
Acquisition-related intangibles, net	17	44
Trade Names And Trademarks
Finite-Lived Intangible Assets
Gross carrying amount	106	106
Accumulated amortization	(95)	(93)
Acquisition-related intangibles, net	11	13
Registered User Base And Other Intangibles
Finite-Lived Intangible Assets
Gross carrying amount	5	5
Accumulated amortization	(5)	(5)
Acquisition-related intangibles, net	0	0
Carrier Contracts And Related
Finite-Lived Intangible Assets
Gross carrying amount	85	85
Accumulated amortization	(85)	(85)
Acquisition-related intangibles, net	$ 0	$ 0
[1]	Derived from audited Consolidated Financial Statements.

Goodwill And Acquisition-Rela44

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Amortization Of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 1	$ 3	$ 3	$ 4
Cost of service and other
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	8	8	16	16
Cost of product
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	4	3	9	7
Operating expenses
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	1	3	3	4
Total amortization
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 13	$ 14	$ 28	$ 27

Goodwill And Acquisition-Rela45

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Future Amortization Of Acquisition-Related Intangibles) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016	[1]
Goodwill and Intangible Assets Disclosure [Abstract]
2017 (remaining six months)	$ 9
2,018	17
2,019	2
Total	$ 28	$ 57
[1]	Derived from audited Consolidated Financial Statements.

Royalties And Licenses (Narrati

Royalties And Licenses (Narrative) (Details) $ in Millions	Sep. 30, 2016USD ($)
Royalties And Licenses
Unrecorded Unconditional Purchase Obligation	$ 2,535
Developer/Licensor Commitments - Royalty Bearing Only
Royalties And Licenses
Unrecorded Unconditional Purchase Obligation	$ 1,425

Royalties And Licenses (Schedul

Royalties And Licenses (Schedule Of Royalty-Related Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Royalties and Licenses
Royalty-related assets	$ 123	$ 117
Other Current Assets
Royalties and Licenses
Royalty-related assets	69	54
Other assets
Royalties and Licenses
Royalty-related assets	$ 54	$ 63

Royalties And Licenses (Sched48

Royalties And Licenses (Schedule Of Royalty-Related Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Royalty Related Liabilities
Royalty-related liabilities	$ 273	$ 277
Accrued royalties
Royalty Related Liabilities
Royalty-related liabilities	162	159
Other liabilities
Royalty Related Liabilities
Royalty-related liabilities	$ 111	$ 118

Balance Sheet Details (Narrativ

Balance Sheet Details (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016	[1]
Balance Sheet Related Disclosures [Abstract]
Depreciation expense	$ 28	$ 30	$ 57	$ 60
Deferred Revenue, Current	$ 1,067		$ 1,067		$ 1,458
[1]	Derived from audited Consolidated Financial Statements.

Balance Sheet Details (Inventor

Balance Sheet Details (Inventories Schedule) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Finished goods	$ 41	$ 32
Raw materials and work in process	9	1
Inventories	$ 50	$ 33	[1]
[1]	Derived from audited Consolidated Financial Statements.

Balance Sheet Details (Property

Balance Sheet Details (Property And Equipment, Net Schedule) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Property and Equipment, Net [Line Items]
Property and equipment, gross	$ 1,298	$ 1,282
Less: accumulated depreciation	(867)	(843)
Property and equipment, net	431	439
Computer, equipment and software
Property and Equipment, Net [Line Items]
Property and equipment, gross	709	684
Buildings
Property and Equipment, Net [Line Items]
Property and equipment, gross	315	313
Leasehold improvements
Property and Equipment, Net [Line Items]
Property and equipment, gross	129	129
Equipment, furniture and fixtures, and other
Property and Equipment, Net [Line Items]
Property and equipment, gross	81	80
Land
Property and Equipment, Net [Line Items]
Property and equipment, gross	61	61
Construction in progress
Property and Equipment, Net [Line Items]
Property and equipment, gross	$ 3	$ 15

Balance Sheet Details (Accrued

Balance Sheet Details (Accrued And Other Current Liabilities Schedule) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Other accrued expenses	$ 289	$ 218
Accrued compensation and benefits	175	256
Accrued royalties	162	159
Deferred net revenue (other)	151	77
Accrued and other current liabilities	$ 777	$ 710	[1]
[1]	Derived from audited Consolidated Financial Statements.

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Footnote Disclosure [Line Items]
Effective tax rates	26.90%	9.40%	19.60%	20.70%
United States statutory tax rate	35.00%	35.00%	35.00%	35.00%
Excess Tax Benefit from Share-based Compensation, Financing Activities	$ 4	$ 25	$ 37	$ 65
Unrecognized tax benefits, period increase (decrease)	10		18
Gross unrecognized tax benefits	349		349
Amount of unrecognized tax benefits that would affect the effective tax rate	322		322
The total amount of unrecognized tax benefits that, if recognized, would result in adjustments to deferred tax assets with corresponding adjustments to the valuation allowance			28
Unrecognized tax benefits income tax penalties and interest accrued increase (decrease)	1		2
Combined amount of accrued interest and penalties related to uncertain tax positions	16		16
Maximum
Income Tax Footnote Disclosure [Line Items]
Amount of unrecognized tax benefits for which it is reasonably possible that there will be a reduction within the next 12 months	$ 67		$ 67

Financing Arrangement (0.75% Co

Financing Arrangement (0.75% Convertible Senior Notes Due 2016) (Details) $ / shares in Units, shares in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 31, 2011	Sep. 30, 2016USD ($)shares	Sep. 30, 2016USD ($)shares	Sep. 30, 2015USD ($)	Jul. 14, 2011USD ($)$ / shares
Financing Arrangements
Repayments of Convertible Debt			$ 163,000,000	$ 198,000,000
Gain (Loss) on Extinguishment of Debt			0	$ 6,000,000
Convertible Debt
Financing Arrangements
Principal amount					$ 633,000,000
Contractual interest rate of 0.75% Convertible Senior Notes due 2016					0.75%
Debt Instrument, Frequency of Periodic Payment	semiannually
Debt Instrument, Issuance Date	Jul. 14, 2011
Convertible Senior Notes due description	2,016
Conversion rate of Notes	31.5075
Face amount of Notes					$ 1,000
Debt Instrument, Convertible, Conversion Price | $ / shares					$ 31.74
Debt Conversion, Original Debt, Amount		$ 136,000,000
Repayments of Convertible Debt		$ 136,000,000	$ 163,000,000
Debt Conversion, Converted Instrument, Shares Issued | shares		2,500	2,900
Debt Conversion, Converted Instrument, Amount		$ 193,000,000	$ 222,000,000
Gain (Loss) on Extinguishment of Debt			$ (300,000)
Shares Received Under Convertible Note Hedge | shares		2,500

Financing Arrangement (Carrying

Financing Arrangement (Carrying Values Of Liability And Equity Components Of Notes) (Details) - Convertible Debt - USD ($) $ in Millions	Sep. 30, 2016	Mar. 31, 2016
Financing Arrangements
Principal amount of Convertible Notes	$ 0	$ 163
Unamortized debt discount of the liability component	0	2
Net carrying value of Convertible Notes	0	161
Fair value of Convertible Notes	$ 0	$ 338

Financing Arrangement (Converti

Financing Arrangement (Convertible Note Hedge and Warrants Issuance) (Details) $ / shares in Units, shares in Thousands, $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 31, 2011USD ($)	Sep. 30, 2016$ / sharesshares	Sep. 30, 2016$ / sharesshares	Jul. 14, 2011$ / sharesshares
Financing Arrangements
Greater Than Or Equal to Trading Days For Automatic Exercise of Warrants			60
Investment Warrants Expiration Date			Oct. 17, 2016
Convertible Note Hedge [Member]
Financing Arrangements
Amount paid for Convertible Note Hedge | $	$ 107
Warrants
Financing Arrangements
Strike price of warrants | $ / shares				$ 41.14
Proceeds from Warrants transaction | $	$ 65
Warrants - Underlying
Financing Arrangements
Shares covered by warrants issuance | shares				19,900
Warrants - Estimated
Financing Arrangements
Shares covered by warrants issuance | shares		10,300	10,300
Convertible Debt
Financing Arrangements
Debt Conversion, Converted Instrument, Shares Issued | shares		2,500	2,900
Share Price | $ / shares		$ 85.40	$ 85.40
Debt Instrument, Convertible, Conversion Price | $ / shares				$ 31.74

Financing Arrangement (Senior N

Financing Arrangement (Senior Notes) (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Feb. 29, 2016	Sep. 30, 2016	Mar. 31, 2016	Feb. 24, 2016
Debt Instrument [Line Items]
Senior Notes, Noncurrent		$ 990	$ 989
Proceeds from Issuance of Senior Long-term Debt	$ 989
2021 Notes
Debt Instrument [Line Items]
Effective interest rate				3.94%
Debt Instrument, Convertible, Remaining Discount Amortization Period		4 years 5 months
Long-term Debt				$ 600
Debt Instrument, Interest Rate, Stated Percentage				3.70%
Debt Instrument, Maturity Date	Mar. 1, 2021
2026 Notes
Debt Instrument [Line Items]
Effective interest rate				4.97%
Debt Instrument, Convertible, Remaining Discount Amortization Period		9 years 5 months
Long-term Debt				$ 400
Debt Instrument, Interest Rate, Stated Percentage				4.80%
Debt Instrument, Maturity Date	Mar. 1, 2026
Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Feb. 24, 2016
Long-term Debt				$ 1,000
Debt Instrument, Unamortized Discount (Premium), Net		$ (2)	(2)	(2)
Debt Issuance Costs, Noncurrent, Net		(8)	(9)	$ (9)
Debt Instrument, Fair Value Disclosure		$ 1,082	$ 1,039
Senior Notes, Frequency of Periodic Payment	semiannually
Debt Instrument, Redemption Price, Percentage		100.00%
Change of control repurchase event
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage		101.00%

Financing Arrangement (Line of

Financing Arrangement (Line of Credit Facility) (Details) - Revolving Credit Facility [Member] $ in Millions	6 Months Ended
	Sep. 30, 2016USD ($)
Line of Credit Facility [Line Items]
Credit Facility, Maximum Borrowing Capacity	$ 500
Option To Request Additional Commitments On Credit Facility	250
Debt issuance costs	$ 2
Credit Facility, Initiation Date	Mar. 19, 2015
Credit Facility, Expiration Date	Mar. 19, 2020
Line of Credit Facility Term	5 years

Financing Arrangement (Schedule

Financing Arrangement (Schedule Of Interest Expense Related To Notes) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Debt Instruments [Abstract]
Amortization of debt discount	$ (1)	$ (5)	$ (2)	$ (11)
Amortization of debt issuance costs	0	0	(1)	(1)
Coupon interest expense	(10)	(1)	(21)	(2)
Total interest expense	$ (11)	$ (6)	$ (24)	$ (14)

Commitments And Contingencies60

Commitments And Contingencies (Narrative) (Details) $ in Millions	Sep. 30, 2016USD ($)
Loss Contingencies [Line Items]
Unrecorded Unconditional Purchase Obligation	$ 2,535
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	1
Amount of potential cash payments that could result from unrecognized tax benefits	86
Unrecorded Unconditional Purchase Obligation Payable in Common Stock Per Year | Maximum
Loss Contingencies [Line Items]
Unrecorded Unconditional Purchase Obligation	10
Unrecorded Unconditional Purchase Obligation Payable in Common Stock | Maximum
Loss Contingencies [Line Items]
Unrecorded Unconditional Purchase Obligation	$ 32

Commitments And Contingencies61

Commitments And Contingencies (Minimum Contractual Obligations) (Details) $ in Millions	Sep. 30, 2016USD ($)
Long Term Purchase Commitments
Unrecorded Total	$ 2,535
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	153
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	491
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	499
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	423
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	380
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	326
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	263
Recorded Total	1,140
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	15
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	23
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	24
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	25
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	626
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	27
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	400
TotalUnconditionalPurchaseObligationBalanceSheetAmount	3,675
TotalUnconditionalPurchaseObligationBalanceSheetAmountRemainingForCurrentFiscalYear	168
Total Unconditional PurchaseObligationBalanceSheetAmountOneYearAfterFiscalYearEnd	514
Total Unconditional Purchase Obligation Balance Sheet Amount Two Years After Fiscal Year End	523
TotalUnconditionalPurchaseObligationBalanceSheetAmountThreeYearsAfterFiscalYearEnd	448
TotalUnconditionalPurchaseObligationBalanceSheetAmountFourYearsAfterFiscalYearEnd	1,006
Total Unconditional Purchase Obligation Balance Sheet Amount Five Years After Fiscal Year End	353
TotalUnconditionalPurchaseObligationBalanceSheetAmountThereafter	663
Developer/Licensor Commitments - Royalty and Non-Royalty Bearing
Long Term Purchase Commitments
Unrecorded Total	1,427
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	66
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	315
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	300
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	251
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	210
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	206
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	79
Marketing
Long Term Purchase Commitments
Unrecorded Total	503
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	29
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	79
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	111
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	91
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	93
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	74
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	26
Operating leases
Long Term Purchase Commitments
Unrecorded Total	234
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	16
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	38
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	34
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	31
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	29
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	23
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	63
Senior Notes Interest
Long Term Purchase Commitments
Unrecorded Total	278
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	17
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	78
Other unrecorded purchase obligations
Long Term Purchase Commitments
Unrecorded Total	93
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	25
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	18
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	13
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	9
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	4
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	17
Senior Notes and Interest
Long Term Purchase Commitments
Recorded Total	1,004
Senior Notes Interest
Long Term Purchase Commitments
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	4
Senior Notes
Long Term Purchase Commitments
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	600
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	400
Licensing and lease obligations
Long Term Purchase Commitments
Recorded Total	136	[1]
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	11	[1]
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	23	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	24	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	25	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	26	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	27	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	$ 0	[1]
[1]	Lease commitments have not been reduced for approximately $1 million due in the future from third parties under non-cancelable sub-leases. See Note 7 for additional information regarding recognized obligations from our licensing-related commitments.

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended		29 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	May 04, 2015	May 05, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess Tax Benefit from Share-based Compensation, Financing Activities	$ 4	$ 25	$ 37	$ 65
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage range of shares received at vesting based on total stockholder return ("TSR")	0.00%		0.00%		0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage range of shares received at vesting based on total stockholder return ("TSR")	200.00%		200.00%		200.00%
Market-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to stock options and restricted stock rights	$ 49		$ 49		$ 49
Weighted-average grant date fair values of restricted stock rights granted			$ 98.04
Maximum number of common shares to be earned during the performance period, Grants			0.7
Maximum number of common shares to be earned during the performance period, outstanding			1.3
Market-Based Restricted Stock Units [Member] | Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target of presented shares granted that may potentially vest	100.00%		100.00%		100.00%
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to stock options and restricted stock rights	$ 5		$ 5		$ 5
Weighted-average service period			1 year
Restricted Stock Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to stock options and restricted stock rights	$ 352		$ 352		$ 352
Weighted-average service period			1 year 9 months
Weighted-average grant date fair values of restricted stock rights granted	$ 79.16		$ 75.31
May 2014 Repurchase Program [Member] [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of common stock authorized for repurchase							$ 750
Stock Repurchased and Retired During Period, Shares	0	0	0	1	9.2
Repurchase and retirement of common stock	$ 0	$ 0	$ 0	$ 57	$ 394
May 2015 Repurchase Program [Member] [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of common stock authorized for repurchase						$ 1,000
Stock Repurchased and Retired During Period, Shares	1.6	1.8	3.5	3
Repurchase and retirement of common stock	$ 127	$ 126	$ 256	$ 201
Repurchase Program, Total [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchased and Retired During Period, Shares	1.6	1.8	3.5	4
Repurchase and retirement of common stock	$ 127	$ 126	$ 256	$ 258
Stock-based compensation expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Income Tax Expense (Benefit)	$ 9		$ 18

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule Of Assumptions Used In Black-Scholes Model) (Details)	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividends	0.00%	0.00%
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Volatility Rate	31.00%	32.00%
Minimum | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum	0.50%	0.30%
Expected volatility, minimum	29.00%	32.00%
Expected Term	6 months	6 months
Maximum | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate, maximum	0.60%	0.40%
Expected volatility, maximum	32.00%	32.00%
Expected Term	12 months	11 months 15 days

Stock-Based Compensation (Sch64

Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense By Statement Of Operations) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Excess Tax Benefit from Share-based Compensation, Financing Activities	$ 4	$ 25	$ 37	$ 65
Stock-based compensation expense	48	44	96	89
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1	1	2	1
Research And Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	27	25	54	51
Marketing and Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	8	7	15	12
General And Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	12	$ 11	25	$ 25
Stock-based compensation expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Deferred Income Tax Expense (Benefit)	$ 9		$ 18

Stock-Based Compensation (Sch65

Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Sep. 30, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options, Outstanding, Beginning Balance | shares	3,278
Options, Granted | shares	3
Options, Exercised | shares	(318)
Options, Forfeited, cancelled or expired | shares	(31)
Options, Outstanding, Ending Balance | shares	2,932
Options, Vested and expected to vest | shares	2,874
Options, Exercisable | shares	2,337
Weighted-average exercise price of options outstanding, beginning balance | $ / shares	$ 35.09
Weighted-average exercise price of options granted during period | $ / shares	69.77
Weighted-average exercise price of options exercised during the period | $ / shares	30.06
Weighted-average exercise price of options forfeited, cancelled or expired during the period | $ / shares	35.84
Weighted-average exercise price of options outstanding, ending balance | $ / shares	35.66
Weighted-average exercise price of options vested and expected to vest | $ / shares	35.75
Weighted-average exercise price of options exercisable | $ / shares	$ 36.83
Weighted-average remaining contractual term of options outstanding	5 years 14 days
Weighted-average remaining contractual term of options vested and expected to vest	4 years 11 months 25 days
Weighted-average remaining contractual term of options exercisable	4 years 5 months 9 days
Aggregate intrinsic value of options outstanding | $	$ 146
Aggregate intrinsic value of options vested and expected to vest | $	143
Aggregate intrinsic value of options exercisable | $	$ 114

Stock-Based Compensation (Sch66

Stock-Based Compensation (Schedule Of Restricted Stock Rights Activity, Excluding Performance-Based Activity) (Details) - Restricted Stock Rights [Member] - $ / shares shares in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding balance		7,157
Granted		2,330
Vested		(3,384)
Forfeited or cancelled		(364)
Outstanding balance	5,739	5,739
Weighted-average grant date fair value, beginning balance		$ 44.04
Weighted-average grant date fair values of restricted stock rights granted	$ 79.16	75.31
Weighted-average grant date fair value, vested during period		35.43
Weighted-average grant date fair value, forfeited or cancelled during period		55.26
Weighted-average grant date fair value, ending balance	$ 61.10	$ 61.10

Stock-Based Compensation (Sch67

Stock-Based Compensation (Schedule Of Market-Based Restricted Stock Unit Activity) (Details) - Market-Based Restricted Stock Units [Member] shares in Thousands	6 Months Ended
	Sep. 30, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding balance | shares	636
Granted | shares	353
Vested | shares	(558)
Share-based compensation Arrangement, Equity instruments other than options, Excess Vesting | shares	238
Forfeited or cancelled | shares	(15)
Outstanding balance | shares	654
Weighted-average grant date fair value, beginning balance | $ / shares	$ 64.49
Weighted-average grant date fair values of market-based restricted stock rights granted | $ / shares	98.04
Weighted-average grant date fair value, vested during period | $ / shares	50.08
Share-based compensation Arrangement, Equity instruments other than options, Excess Vesting, Weighted Average Grant Date Fair Value | $ / shares	44.99
Weighted-average grant date fair value, forfeited or cancelled during period | $ / shares	86.39
Weighted-average grant date fair value, ending balance | $ / shares	$ 87.29

Stock-Based Compensation Schedu

Stock-Based Compensation Schedule of Share Repurchases (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended		29 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016
May 2014 Repurchase Program [Member] [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value	$ 0	$ 0	$ 0	$ 57	$ 394
Stock Repurchased and Retired During Period, Shares	0	0	0	1	9.2
May 2015 Repurchase Program [Member] [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value	$ 127	$ 126	$ 256	$ 201
Stock Repurchased and Retired During Period, Shares	1.6	1.8	3.5	3
Repurchase Program, Total
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value	$ 127	$ 126	$ 256	$ 258
Stock Repurchased and Retired During Period, Shares	1.6	1.8	3.5	4

Earnings (Loss) Per Share (Narr

Earnings (Loss) Per Share (Narrative) (Details) - shares shares in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3	6
Convertible Debt
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		7
Warrants
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	10	8

Earnings (Loss) Per Share Earni

Earnings (Loss) Per Share Earnings (Loss) Per Share (Computation Of Basic Earnings And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share
Net income (loss)	$ (38)	$ (140)	$ 402	$ 302
Weighted Average Number of Shares Outstanding, Basic	301	312	301	311
Dilutive potential common shares related to stock award plans and from assumed exercise of stock options	0	0	3	7
Weighted Average Number of Shares Outstanding, Diluted	301	312	315	334
Basic	$ (0.13)	$ (0.45)	$ 1.34	$ 0.97
Diluted	$ (0.13)	$ (0.45)	$ 1.28	$ 0.90
Convertible Debt
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	0	0	2	9
Warrants
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	0	0	9	7