Electronic Arts (EA) 10-Q 8 Feb 21 2021 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Dec. 31, 2020	Feb. 04, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	000-17948
Entity Registrant Name	ELECTRONIC ARTS INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-2838567
Entity Address, Address Line One	209 Redwood Shores Parkway
Entity Address, City or Town	Redwood City
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94065
City Area Code	650
Local Phone Number	628-1500
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	EA
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		287,626,027
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--03-31
Entity Central Index Key	0000712515

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 4,772	$ 3,768
Short-term investments	1,938	1,967	[1]
Receivables, net	778	461	[1]
Other current assets	233	321	[1]
Total current assets	7,721	6,517	[1]
Property and equipment, net	467	449	[1]
Goodwill	1,896	1,885	[1]
Acquisition-related intangibles, net	37	53	[1]
Other assets	375	305	[1]
TOTAL ASSETS	12,420	11,112	[1]
Current liabilities:
Accounts payable	89	68	[1]
Accrued and other current liabilities	1,423	1,052	[1]
Deferred net revenue (online-enabled games)	1,380	945	[1]
Senior Notes, Current	600	599
Total current liabilities	3,492	2,664	[1]
Senior notes, net	397	397	[1]
Income tax obligations	296	373	[1]
Other liabilities	271	216	[1]
TOTAL LIABILITIES	4,457	3,651	[1]
Commitments and contingencies (See Note 12)			[1]
STOCKHOLDERS' EQUITY:
Common stock, $0.01 par value. 1,000 shares authorized; 288 and 288 shares issued and outstanding, respectively	3	3	[1]
Additional paid-in capital	0	0	[1]
Retained earnings	8,054	7,508	[1]
Accumulated other comprehensive loss	(94)	(50)	[1]
Total stockholders' equity	7,963	7,461	[1]
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 12,420	$ 11,112	[1]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000	1,000
Deferred Income Tax Liabilities, Net	$ 1	$ 1	[1]
Deferred Income Tax Assets, Net	$ 1,924	$ 1,903	[1]
[1]	Derived from audited Consolidated Financial Statements.

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Millions	Dec. 31, 2020	Mar. 31, 2020
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000	1,000
Common stock, shares issued	288	288
Common stock, shares outstanding	288	288

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net revenue	$ 1,673	$ 1,593	$ 4,283	$ 4,150
Cost of revenue	601	508	1,175	1,100
Gross profit	1,072	1,085	3,108	3,050
Operating expenses:
Research and development	451	389	1,310	1,157
Marketing and sales	216	202	493	464
General and administrative	149	126	418	364
Acquisition-related contingent consideration	0	2	0	5
Amortization of intangibles	5	5	16	16
Total operating expenses	821	724	2,237	2,006
Operating income (loss)	251	361	871	1,044
Interest and other income (expense), net	(6)	13	(19)	50
Income before provision for income taxes	245	374	852	1,094
Provision for income taxes	34	28	91	(1,527)
Net income (loss)	$ 211	$ 346	$ 761	$ 2,621
Earnings (loss) per share:
Earnings Per Share, Basic	$ 0.73	$ 1.18	$ 2.63	$ 8.91
Earnings Per Share, Diluted	$ 0.72	$ 1.18	$ 2.61	$ 8.85
Number of shares used in computation:
Basic	290	292	289	294
Diluted	292	294	292	296

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 211	$ 346	$ 761	$ 2,621
Other comprehensive income (loss), net of tax:
Net gains (losses) on available-for-sale securities	(2)	(1)	6	2
Net gains (losses) on derivative instruments	(26)	(29)	(106)	(4)
Foreign currency translation adjustments	23	7	56	(1)
Total other comprehensive income (loss), net of tax	(5)	(23)	(44)	(3)
Total comprehensive income (loss)	$ 206	$ 323	$ 717	$ 2,618

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income (loss)	$ 761	$ 2,621
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, amortization and accretion	123	111
Stock-based compensation	326	256
Change in assets and liabilities:
Receivables, net	(309)	(176)
Other assets	(28)	76
Accounts payable	29	(33)
Accrued and other liabilities	245	264
Deferred income taxes, net	(18)	(1,793)
Deferred net revenue (online-enabled games)	434	(27)
Net cash provided by operating activities	1,563	1,299
INVESTING ACTIVITIES
Capital expenditures	(93)	(100)
Proceeds from maturities and sales of short-term investments	2,088	1,375
Purchase of short-term investments	(2,056)	(2,621)
Net cash used in investing activities	(61)	(1,346)
FINANCING ACTIVITIES
Proceeds from issuance of common stock	56	34
Payments of Dividends	(49)	0
Cash paid to taxing authorities for shares withheld from employees	(144)	(86)
Repurchase and retirement of common stock	(404)	(916)
Payment for Contingent Consideration Liability, Financing Activities	0	90
Net cash used in financing activities	(541)	(1,058)
Effect of foreign exchange on cash and cash equivalents	43	0
Increase (decrease) in cash and cash equivalents	1,004	(1,105)
Beginning cash and cash equivalents	3,768	4,708
Ending cash and cash equivalents	4,772	3,603
Supplemental cash flow information:
Cash paid during the period for income taxes, net	184	116
Cash paid during the period for interest	21	21
Non-cash Investing activities
Change in accrued capital expenditures	$ 1	$ (20)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity Statement - USD ($) shares in Thousands, $ in Millions	Total		Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (loss)
Beginning balance (in shares) at Mar. 31, 2019			298,107
Beginning balance at Mar. 31, 2019	$ 5,331		$ 3	$ 0	$ 5,358	$ (30)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	1,434				1,421	13
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	73			73
Stock Issued During Period, Shares, New Issues			985
Stock Issued During Period, Value, New Issues	(48)			(48)
Stock Repurchased and Retired During Period, Shares			(3,205)
Stock Repurchased and Retired During Period, Value	(305)			(25)	(280)
Ending balance (in shares) at Jun. 30, 2019			295,887
Ending balance at Jun. 30, 2019	6,485		$ 3	0	6,499	(17)
Beginning balance (in shares) at Mar. 31, 2019			298,107
Beginning balance at Mar. 31, 2019	5,331		$ 3	0	5,358	(30)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss) before reclassifications	49
Amounts reclassified from accumulated other comprehensive income (loss)	(52)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	2,618
Ending balance (in shares) at Dec. 31, 2019			290,609
Ending balance at Dec. 31, 2019	7,237		$ 3	0	7,267	(33)
Beginning balance (in shares) at Jun. 30, 2019			295,887
Beginning balance at Jun. 30, 2019	6,485		$ 3	0	6,499	(17)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	861				854	7
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	92			92
Stock Issued During Period, Shares, New Issues			584
Stock Issued During Period, Value, New Issues	26			26
Stock Repurchased and Retired During Period, Shares			(3,253)
Stock Repurchased and Retired During Period, Value	(306)			(118)	(188)
Ending balance (in shares) at Sep. 30, 2019			293,218
Ending balance at Sep. 30, 2019	7,158		$ 3	0	7,165	(10)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss) before reclassifications	(6)
Amounts reclassified from accumulated other comprehensive income (loss)	(17)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	323				346	(23)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	91			91
Stock Issued During Period, Shares, New Issues			492
Stock Issued During Period, Value, New Issues	(30)			(30)
Stock Repurchased and Retired During Period, Shares			(3,101)
Stock Repurchased and Retired During Period, Value	(305)			(61)	(244)
Ending balance (in shares) at Dec. 31, 2019			290,609
Ending balance at Dec. 31, 2019	$ 7,237		$ 3	0	7,267	(33)
Beginning balance (in shares) at Mar. 31, 2020	288,000		288,413
Beginning balance at Mar. 31, 2020	$ 7,461	[1]	$ 3	0	7,508	(50)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	363				365	(2)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	102			102
Stock Issued During Period, Shares, New Issues			1,088
Stock Issued During Period, Value, New Issues	(66)			(66)
Stock Repurchased and Retired During Period, Shares			(747)
Stock Repurchased and Retired During Period, Value	(78)			(36)	(42)
Ending balance (in shares) at Jun. 30, 2020			288,754
Ending balance at Jun. 30, 2020	$ 7,782		$ 3	0	7,831	(52)
Beginning balance (in shares) at Mar. 31, 2020	288,000		288,413
Beginning balance at Mar. 31, 2020	$ 7,461	[1]	$ 3	0	7,508	(50)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss) before reclassifications	(58)
Amounts reclassified from accumulated other comprehensive income (loss)	14
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 717
Ending balance (in shares) at Dec. 31, 2020	288,000		288,443
Ending balance at Dec. 31, 2020	$ 7,963		$ 3	0	8,054	(94)
Beginning balance (in shares) at Jun. 30, 2020			288,754
Beginning balance at Jun. 30, 2020	7,782		$ 3	0	7,831	(52)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	148				185	(37)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	113			113
Stock Issued During Period, Shares, New Issues			868
Stock Issued During Period, Value, New Issues	32			32
Stock Repurchased and Retired During Period, Shares			0
Stock Repurchased and Retired During Period, Value	0			0	0
Ending balance (in shares) at Sep. 30, 2020			289,622
Ending balance at Sep. 30, 2020	8,075		$ 3	145	8,016	(89)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss) before reclassifications	(25)
Amounts reclassified from accumulated other comprehensive income (loss)	20
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	206				211	(5)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	111			111
Stock Issued During Period, Shares, New Issues			1,345
Stock Issued During Period, Value, New Issues	(54)			(54)
Stock Repurchased and Retired During Period, Shares			(2,524)
Stock Repurchased and Retired During Period, Value	(326)			(202)	(124)
Cash dividends declared ($0.17 per common share)	$ (49)				(49)
Common Stock, Dividends, Per Share, Declared	$ 0.17
Ending balance (in shares) at Dec. 31, 2020	288,000		288,443
Ending balance at Dec. 31, 2020	$ 7,963		$ 3	$ 0	$ 8,054	$ (94)
[1]	Derived from audited Consolidated Financial Statements.

Description Of Business And Bas

Description Of Business And Basis Of Presentation	9 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description Of Business And Basis Of Presentation	(1) DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Electronic Arts is a global leader in digital interactive entertainment. We develop, market, publish and deliver games, content and services that can be played and watched on game consoles, PCs, mobile phones and tablets. We believe that the breadth and depth of our portfolio, live services offerings, and our use of multiple business models and distribution channels provide us with strategic advantages. Our foundation is a collection of intellectual property from which we create innovative games and content that enables us to build on-going and meaningful relationships with a community of players, creators and viewers. Our portfolio includes brands that we either wholly own (such as Battlefield, The Sims, Apex Legends, Need for Speed and Plants vs. Zombies) or license from others (such as FIFA, Madden NFL, UFC, NHL and Star Wars). We also offer our players high-quality experiences designed to provide value to players and to extend and enhance gameplay. These live services include extra content, subscription offerings and other revenue generated outside of the sale of our base games. And we are focused on reaching more players whenever and wherever they want to play. We believe that we can add value to our network by making it easier for players to connect to a world of play by offering choice of business model, distribution channel and device. 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, 2021 contains 53 weeks and ends on April 3, 2021. Our results of operations for the fiscal year ended March 31, 2020 contained 52 weeks and ended on March 28, 2020. Our results of operations for the three and nine months ended December 31, 2020 contained 13 weeks and 40 weeks, respectively, and ended on January 2, 2021. Our results of operations for the three and nine months ended December 31, 2019 contained 13 weeks and 39 weeks, respectively, and ended on December 28, 2019. 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, 2020, as filed with the United States Securities and Exchange Commission (“SEC”) on May 20, 2020. Change in Estimated Offering Period The offering period is the period in which we offer to provide the future update rights and/or online hosting for the game and extra content sold. Because the offering period is not an explicitly defined period, we must make an estimate of the offering period for the service related performance obligations (i.e., future update rights and online hosting). For sales prior to July 1, 2020, revenues for service related performance obligations were generally recognized over an estimated nine-month period beginning in the month after shipment for games and extra content sold through retail, and an estimated six-month period for digitally-distributed games and extra content beginning in the month of sale. During the three months ended September 30, 2020, we completed our annual evaluation of the Estimated Offering Period, and noted that generally, consumers were playing our games for longer periods of time as players engage with services we provide that are designed to enhance and extend gameplay. Based on this, we concluded that the Estimated Offering Period applied to sales made after June 30, 2020 should be lengthened. Revenues for service related performance obligations for games and extra content sold through retail are now recognized over an estimated ten-month period beginning in the month of sale, and revenues for service related performance obligations for digitally-distributed games and extra content are now recognized over an estimated eight-month period beginning in the month of sale, which results in revenue being recognized over a longer period of time. During the three months ended December 31, 2020, this change to our Estimated Offering Period resulted in an estimated decrease in net revenue of $125 million and net income of $105 million, and a decrease of $0.36 diluted earnings per share. During the nine months ended December 31, 2020, this change to our Estimated Offering Period resulted in an estimated decrease in net revenue of $151 million and net income of $125 million, and a decrease of $0.43 diluted earnings per share. Reclassifications As our business has evolved and management focuses less on the differentiation between our packaged goods business and our digital business and more on our full game sales and live services that extend and enhance gameplay, we have updated our presentation of net revenue by composition to align with this management view. Certain prior year amounts were reclassified to conform to current year presentation. Recently Adopted Accounting Standards In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326). The update changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. This update replaces the existing incurred loss impairment model with an expected loss model. It also requires credit losses related to available-for-sale debt securities to be recognized as an allowance for credit losses rather than as a reduction to the carrying value of the securities. We adopted ASU 2016-13 in the first quarter of fiscal year 2021. The adoption did not have a material impact on our Condensed Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. This update eliminates, adds, and modifies certain fair value measurement disclosure requirements. We adopted ASU 2018-13 in the first quarter of fiscal year 2021. The adoption did not have an impact on our Condensed Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40). This update requires a customer in a cloud computing service arrangement to follow the internal-use software guidance in order to determine which implementation costs to defer and recognize as an asset. We adopted ASU 2018-15 in the first quarter of fiscal year 2021. The adoption did not have a material impact on our Condensed Consolidated Financial Statements. Other Recently Issued Accounting Standards In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. This update is effective for us beginning in the first quarter of fiscal year 2022. We are evaluating the impact of this new standard but do not expect the adoption to have a material impact on our Condensed Consolidated Financial Statements.
Change in Accounting Estimate	Change in Estimated Offering Period The offering period is the period in which we offer to provide the future update rights and/or online hosting for the game and extra content sold. Because the offering period is not an explicitly defined period, we must make an estimate of the offering period for the service related performance obligations (i.e., future update rights and online hosting). For sales prior to July 1, 2020, revenues for service related performance obligations were generally recognized over an estimated nine-month period beginning in the month after shipment for games and extra content sold through retail, and an estimated six-month period for digitally-distributed games and extra content beginning in the month of sale. During the three months ended September 30, 2020, we completed our annual evaluation of the Estimated Offering Period, and noted that generally, consumers were playing our games for longer periods of time as players engage with services we provide that are designed to enhance and extend gameplay. Based on this, we concluded that the Estimated Offering Period applied to sales made after June 30, 2020 should be lengthened. Revenues for service related performance obligations for games and extra content sold through retail are now recognized over an estimated ten-month period beginning in the month of sale, and revenues for service related performance obligations for digitally-distributed games and extra content are now recognized over an estimated eight-month period beginning in the month of sale, which results in revenue being recognized over a longer period of time. During the three months ended December 31, 2020, this change to our Estimated Offering Period resulted in an estimated decrease in net revenue of $125 million and net income of $105 million, and a decrease of $0.36 diluted earnings per share. During the nine months ended December 31, 2020, this change to our Estimated Offering Period resulted in an estimated decrease in net revenue of $151 million and net income of $125 million, and a decrease of $0.43 diluted earnings per share.
Reclassifications	Reclassifications As our business has evolved and management focuses less on the differentiation between our packaged goods business and our digital business and more on our full game sales and live services that extend and enhance gameplay, we have updated our presentation of net revenue by composition to align with this management view. Certain prior year amounts were reclassified to conform to current year presentation.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326). The update changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. This update replaces the existing incurred loss impairment model with an expected loss model. It also requires credit losses related to available-for-sale debt securities to be recognized as an allowance for credit losses rather than as a reduction to the carrying value of the securities. We adopted ASU 2016-13 in the first quarter of fiscal year 2021. The adoption did not have a material impact on our Condensed Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. This update eliminates, adds, and modifies certain fair value measurement disclosure requirements. We adopted ASU 2018-13 in the first quarter of fiscal year 2021. The adoption did not have an impact on our Condensed Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40). This update requires a customer in a cloud computing service arrangement to follow the internal-use software guidance in order to determine which implementation costs to defer and recognize as an asset. We adopted ASU 2018-15 in the first quarter of fiscal year 2021. The adoption did not have a material impact on our Condensed Consolidated Financial Statements.
Other Recently Issued Accounting Standards	Other Recently Issued Accounting Standards In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. This update is effective for us beginning in the first quarter of fiscal year 2022. We are evaluating the impact of this new standard but do not expect the adoption to have a material impact on our Condensed Consolidated Financial Statements.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2020
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 December 31, 2020 and March 31, 2020, 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 As of December 31, 2020 Quoted Prices in Significant Significant Balance Sheet (Level 1) (Level 2) (Level 3) Assets Bank and time deposits $ 136 $ 136 $ — $ — Cash equivalents Money market funds 2,301 2,301 — — Cash equivalents Available-for-sale securities: Corporate bonds 686 — 686 — Short-term investments and cash equivalents U.S. Treasury securities 570 570 — — Short-term investments and cash equivalents U.S. agency securities 4 — 4 — Short-term investments Commercial paper 407 — 407 — Short-term investments and cash equivalents Foreign government securities 72 — 72 — Short-term investments Asset-backed securities 209 — 209 — Short-term investments Certificates of deposit 80 — 80 — Short-term investments and cash equivalents Foreign currency derivatives 22 — 22 — Other current assets and other assets Deferred compensation plan assets (a) 18 18 — — Other assets Total assets at fair value $ 4,505 $ 3,025 $ 1,480 $ — Liabilities Foreign currency derivatives $ 72 $ — $ 72 $ — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 18 18 — — Other liabilities Total liabilities at fair value $ 90 $ 18 $ 72 $ — Fair Value Measurements at Reporting Date Using As of March 31, 2020 Quoted Prices in Significant Significant Balance Sheet (Level 1) (Level 2) (Level 3) Assets Bank and time deposits $ 78 $ 78 $ — $ — Cash equivalents Money market funds 1,599 1,599 — — Cash equivalents Available-for-sale securities: Corporate bonds 687 — 687 — Short-term investments and cash equivalents U.S. Treasury securities 603 603 — — Short-term investments and cash equivalents U.S. agency securities 8 — 8 — Short-term investments Commercial paper 414 — 414 — Short-term investments and cash equivalents Foreign government securities 42 — 42 — Short-term investments Asset-backed securities 269 — 269 — Short-term investments Certificates of deposit 56 — 56 — Short-term investments Foreign currency derivatives 76 — 76 — Other current assets and other assets Deferred compensation plan assets (a) 13 13 — — Other assets Total assets at fair value $ 3,845 $ 2,293 $ 1,552 $ — Liabilities Foreign currency derivatives $ 36 $ — $ 36 $ — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 14 14 — — Other liabilities Total liabilities at fair value $ 50 $ 14 $ 36 $ — (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, 2020, for additional information regarding our Deferred Compensation Plan.

Financial Instruments

Financial Instruments	9 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Financial Instruments	(3) FINANCIAL INSTRUMENTS Cash and Cash Equivalents As of December 31, 2020 and March 31, 2020, our cash and cash equivalents were $4,772 million and $3,768 million, respectively. Cash equivalents were valued using quoted market prices or other readily available market information. Short-Term Investments Short-term investments consisted of the following as of December 31, 2020 and March 31, 2020 (in millions): As of December 31, 2020 As of March 31, 2020 Cost or Gross Unrealized Fair Cost or Gross Unrealized Fair Gains Losses Gains Losses Corporate bonds $ 647 $ 1 $ — $ 648 $ 684 $ 1 $ (4) $ 681 U.S. Treasury securities 559 1 — 560 530 4 — 534 U.S. agency securities 4 — — 4 8 — — 8 Commercial paper 369 — — 369 377 — — 377 Foreign government securities 72 — — 72 42 — — 42 Asset-backed securities 208 1 — 209 273 — (4) 269 Certificates of deposit 76 — — 76 56 — — 56 Short-term investments $ 1,935 $ 3 $ — $ 1,938 $ 1,970 $ 5 $ (8) $ 1,967 The following table summarizes the amortized cost and fair value of our short-term investments, classified by stated maturity as of December 31, 2020 and March 31, 2020 (in millions): As of December 31, 2020 As of March 31, 2020 Amortized Fair Amortized Fair Short-term investments Due within 1 year $ 1,579 $ 1,580 $ 1,568 $ 1,567 Due 1 year through 5 years 348 350 395 393 Due after 5 years 8 8 7 7 Short-term investments $ 1,935 $ 1,938 $ 1,970 $ 1,967

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	(4) DERIVATIVE FINANCIAL INSTRUMENTS 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, Japanese yen, Chinese yuan, South Korean won and Polish zloty. In addition, we utilize foreign currency forward contracts to mitigate foreign currency exchange risk associated with foreign-currency-denominated monetary assets and liabilities, primarily intercompany receivables and payables. The foreign currency forward contracts not designated as hedging instruments generally have a contractual term of approximately three 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. 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 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 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 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 net revenue or research and development expenses, 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 December 31, 2020 As of March 31, 2020 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 255 $ 19 $ — $ 316 $ 1 $ 19 Forward contracts to sell $ 1,135 $ 1 $ 69 $ 1,371 $ 61 $ 1 The effects of cash flow hedge accounting in our Condensed Consolidated Statements of Operations for the three and nine months ended December 31, 2020 and 2019 are as follows (in millions): Three Months Ended December 31, Nine Months Ended December 31, 2020 2019 2020 2019 Net revenue Research and development Net revenue Research and development Net revenue Research and development Net revenue Research and development Total amounts presented in our Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded $ 1,673 $ 451 $ 1,593 $ 389 $ 4,283 $ 1,310 $ 4,150 $ 1,157 Gains (losses) on foreign currency forward contracts designated as cash flow hedges $ (22) $ 2 $ 18 $ (1) $ (10) $ (4) $ 59 $ (8) 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. 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 December 31, 2020 As of March 31, 2020 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 599 $ 1 $ 1 $ 388 $ 1 $ 16 Forward contracts to sell $ 756 $ 1 $ 2 $ 292 $ 13 $ — The effect of foreign currency forward contracts not designated as hedging instruments in our Condensed Consolidated Statements of Operations for the three and nine months ended December 31, 2020 and 2019 was as follows (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Interest and other income (expense), net Total amounts presented in our Condensed Consolidated Statements of Operations in which the effects of balance sheet hedges are recorded $ (6) $ 13 $ (19) $ 50 Gain (losses) on foreign currency forward contracts not designated as hedging instruments $ (13) $ (1) $ (20) $ (4)

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other 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 December 31, 2020 and 2019 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 September 30, 2020 $ 4 $ (41) $ (52) $ (89) Other comprehensive income (loss) before reclassifications (2) (46) 23 (25) Amounts reclassified from accumulated other comprehensive income (loss) — 20 — 20 Total other comprehensive income (loss), net of tax (2) (26) 23 (5) Balances as of December 31, 2020 $ 2 $ (67) $ (29) $ (94) Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of September 30, 2019 $ 2 $ 47 $ (59) $ (10) Other comprehensive income (loss) before reclassifications (1) (12) 7 (6) Amounts reclassified from accumulated other comprehensive income (loss) — (17) — (17) Total other comprehensive income (loss), net of tax (1) (29) 7 (23) Balances as of December 31, 2019 $ 1 $ 18 $ (52) $ (33) The changes in accumulated other comprehensive income (loss) by component, net of tax, for the nine months ended December 31, 2020 and 2019 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, 2020 $ (4) $ 39 $ (85) $ (50) Other comprehensive income (loss) before reclassifications 6 (120) 56 (58) Amounts reclassified from accumulated other comprehensive income (loss) — 14 — 14 Total other comprehensive income (loss), net of tax 6 (106) 56 (44) Balances as of December 31, 2020 $ 2 $ (67) $ (29) $ (94) 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, 2019 $ (1) $ 22 $ (51) $ (30) Other comprehensive income (loss) before reclassifications 3 47 (1) 49 Amounts reclassified from accumulated other comprehensive income (loss) (1) (51) — (52) Total other comprehensive income (loss), net of tax 2 (4) (1) (3) Balances as of December 31, 2019 $ 1 $ 18 $ (52) $ (33) The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and nine months ended December 31, 2020 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended December 31, 2020 Nine Months Ended December 31, 2020 (Gains) losses on foreign currency forward contracts designated as cash flow hedges Net revenue $ 22 $ 10 Research and development (2) 4 Total net (gain) loss reclassified, net of tax $ 20 $ 14 The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and nine months ended December 31, 2019 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended December 31, 2019 Nine Months Ended December 31, 2019 (Gains) losses on foreign currency forward contracts designated as cash flow hedges Net revenue $ (18) $ (59) Research and development 1 8 Total net (gain) loss reclassified, net of tax $ (17) $ (51)

Business Combinations

Business Combinations	3 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	(6) BUSINESS COMBINATIONS Pending Acquisition of Codemasters On December 14, 2020, we issued an announcement pursuant to Rule 2.7 of the United Kingdom City Code on Takeovers and Mergers disclosing the terms of an all-cash offer to acquire all of the issued and to be issued ordinary shares of Codemasters Group Holdings plc, a public limited company registered in England and Wales (“Codemasters”). Under the terms of the offer, Codemasters’ shareholders will receive 604 pence in cash for each ordinary share of Codemasters (implying an equity value of approximately £945 million, or $1.3 billion using the latest practicable exchange rate). On February 3, 2021, the requisite majority of Codemasters’ shareholders voted to approve the Codemasters acquisition. The transaction remains subject to, among other things, satisfaction or waiver of customary closing conditions. The acquisition is anticipated to close in February 2021. We intend to fund this acquisition with existing cash on hand. Pending Acquisition of Glu Mobile On February 8, 2021, we announced that we entered into a definitive merger agreement to acquire Glu Mobile Inc., a leading global developer and publisher of mobile games (“Glu”), (the “Glu acquisition”). Under the terms of the merger agreement, Glu shareholders will receive $12.50 in cash for each outstanding share of Glu common stock, representing an equity value of approximately $2.4 billion, and a total enterprise value of approximately $2.1 billion including Glu’s net cash of $364 million. The merger agreement also provides that we will assume all outstanding unvested equity awards held by Glu employees. The consummation of the Glu acquisition is subject to certain customary closing conditions, including antitrust clearances. The Glu acquisition is expected to close in the first quarter of fiscal 2022. We intend to fund this acquisition with existing cash on hand and any financing we may do from time to time.

Goodwill And Acquisition-Relate

Goodwill And Acquisition-Related Intangibles, Net	9 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill And Acquisition-Related Intangibles, Net	(7) GOODWILL AND ACQUISITION-RELATED INTANGIBLES, NET The changes in the carrying amount of goodwill for the nine months ended December 31, 2020 are as follows (in millions): As of March 31, 2020 Activity Effects of Foreign Currency Translation As of December 31, 2020 Goodwill $ 2,253 $ — $ 11 $ 2,264 Accumulated impairment (368) — — (368) Total $ 1,885 $ — $ 11 $ 1,896 Acquisition-related intangibles consisted of the following (in millions): As of December 31, 2020 As of March 31, 2020 Gross Accumulated Acquisition- Gross Accumulated Acquisition- Developed and core technology $ 474 $ (458) $ 16 $ 474 $ (450) $ 24 Trade names and trademarks 161 (140) 21 161 (132) 29 Registered user base and other intangibles 5 (5) — 5 (5) — Carrier contracts and related 85 (85) — 85 (85) — Total $ 725 $ (688) $ 37 $ 725 $ (672) $ 53 Amortization of intangibles for the three and nine months ended December 31, 2020 and 2019 are classified in the Condensed Consolidated Statements of Operations as follows (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Cost of revenue $ — $ 5 $ — $ 9 Operating expenses 5 5 16 16 Total $ 5 $ 10 $ 16 $ 25 Acquisition-related intangible assets are amortized using the straight-line method over the lesser of their estimated useful lives or the agreement terms, currently from 1 to 5 years. As of December 31, 2020 and March 31, 2020, the weighted-average remaining useful life for acquisition-related intangible assets was approximately 1.7 and 2.4 years, respectively. As of December 31, 2020, future amortization of finite-lived acquisition-related intangibles that will be recorded in the Condensed Consolidated Statements of Operations is estimated as follows (in millions): Fiscal Year Ending March 31, 2021 (remaining three months) $ 6 2022 22 2023 9 2024 and thereafter — Total $ 37

Royalties And Licenses

Royalties And Licenses	9 Months Ended
	Dec. 31, 2020
Royalties And Licenses [Abstract]
Royalties And Licenses	(8) 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. During the three and nine months ended December 31, 2020 and 2019, we did not recognize any material losses or impairment charges on royalty-based commitments. 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 December 31, 2020 As of March 31, 2020 Other current assets $ 25 $ 74 Other assets 21 25 Royalty-related assets $ 46 $ 99 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 December 31, 2020 As of March 31, 2020 Accrued royalties $ 267 $ 171 Other liabilities 7 26 Royalty-related liabilities $ 274 $ 197 As of December 31, 2020, we were committed to pay approximately $1,839 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 12 for further information on our developer and licensor commitments.

Balance Sheet Details

Balance Sheet Details	9 Months Ended
	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Details	(9) BALANCE SHEET DETAILS Property and Equipment, Net Property and equipment, net, as of December 31, 2020 and March 31, 2020 consisted of (in millions): As of December 31, 2020 As of March 31, 2020 Computer, equipment and software $ 827 $ 722 Buildings 357 340 Leasehold improvements 172 161 Equipment, furniture and fixtures, and other 89 83 Land 66 65 Construction in progress 5 20 1,516 1,391 Less: accumulated depreciation (1,049) (942) Property and equipment, net $ 467 $ 449 During the three and nine months ended December 31, 2020, depreciation expense associated with property and equipment was $37 million and $100 million, respectively. During the three and nine months ended December 31, 2019, depreciation expense associated with property and equipment was $29 million and $89 million, respectively. Accrued and Other Current Liabilities Accrued and other current liabilities as of December 31, 2020 and March 31, 2020 consisted of (in millions): As of December 31, 2020 As of March 31, 2020 Other accrued expenses $ 360 $ 273 Accrued compensation and benefits 402 326 Accrued royalties 267 171 Sales returns and price protection reserves 182 109 Deferred net revenue (other) 126 104 Operating lease liabilities 86 69 Accrued and other current liabilities $ 1,423 $ 1,052 Deferred net revenue (other) includes the deferral of subscription revenue, advertising revenue, licensing arrangements, and other revenue for which revenue recognition criteria has not been met. Deferred net revenue Deferred net revenue as of December 31, 2020 and March 31, 2020 consisted of (in millions): As of December 31, 2020 As of March 31, 2020 Deferred net revenue (online-enabled games) $ 1,380 $ 945 Deferred net revenue (other) 126 104 Deferred net revenue (noncurrent) 17 8 Total Deferred net revenue $ 1,523 $ 1,057 During the nine months ended December 31, 2020 and 2019, we recognized $1,002 million and $1,169 million of revenue, respectively, that were included in the deferred net revenue balance at the beginning of the period. Remaining Performance Obligations As of December 31, 2020, revenue allocated to remaining performance obligations consists of our deferred revenue balance of $1,523 million and amounts to be invoiced and recognized as revenue in future periods of $33 million. These balances exclude any estimates for future variable consideration as we have elected the optional exemption to exclude sales-based royalty revenue. We expect to recognize substantially all of these balances as revenue over the next 12 months.

Income Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	(10) INCOME TAXES The provision for income taxes for the three and nine months ended December 31, 2020 is based on our projected annual effective tax rate for fiscal year 2021, adjusted for specific items that are required to be recognized in the period in which they are incurred. Our effective tax rates for the three and nine months ended December 31, 2020 were 14 percent and 11 percent, respectively, as compared to 8 percent and negative 140 percent, respectively, for the same periods in fiscal year 2020. During the three months ended June 30, 2019, we completed an intra-entity sale of some of our intellectual property rights to our Swiss subsidiary, where our international business is headquartered (the “Swiss intra-entity sale”), resulting in the recognition of a $1.17 billion net Swiss deferred tax asset, which will reverse over a 20-year period. Separately, during the three months ended September 30, 2019, Switzerland enacted a new statutory tax rate. As a result of the enactment, we remeasured our Swiss deferred tax asset and recognized an additional net tax benefit of $630 million through continuing operations (“Swiss rate change benefit”). In addition, the opinion of the Ninth Circuit Court of Appeals in Altera Corp. v Commissioner (the “Altera opinion”) resulted in the recognition of $90 million of unrecognized tax benefits related to U.S. uncertain tax positions during the three months ended June 30, 2019. Excluding the Swiss intra-entity sale, Swiss rate change benefit and Altera opinion, the effective tax rate for the three and nine months ended December 31, 2019 would have been 16 percent and 14 percent, respectively. When compared to the U.S. federal statutory rate of 21 percent, the effective tax rates for the three and nine months ended December 31, 2020 were lower primarily due to the decreases in unrecognized tax benefits related to prior year tax positions, net of a partial valuation allowance, and excess tax benefits on stock-based compensation. We are subject to income tax examinations in various jurisdictions with respect to fiscal years after 2010. The timing and potential resolution of income tax examinations is highly uncertain. The total unrecognized tax benefits as of December 31, 2020 were $563 million: Balance as of March 31, 2020 $ 983 Increases in unrecognized tax benefits related to prior year tax positions 5 Decreases in unrecognized tax benefits related to prior year tax positions (441) Increases in unrecognized tax benefits related to current year tax positions 35 Decreases in unrecognized tax benefits related to settlements with taxing authorities (2) Reductions in unrecognized tax benefits due to lapse of applicable statute of limitations (24) Changes in unrecognized tax benefits due to foreign currency translation 7 Balance as of December 31, 2020 $ 563 While we continue to measure our uncertain tax positions, the amounts ultimately paid, if any, upon resolution of the issues raised by the taxing authorities may differ materially from the amounts accrued. In the period ended June 30, 2020, the Supreme Court of the United States denied Altera’s appeal of the Altera opinion, resulting in a partial decrease of our unrecognized tax benefits, as well as a reclassification of approximately $80 million of non-current payable to current payable. A complete resolution and settlement of the matters underlying the Altera opinion is reasonably possible within the next 12 months, which would result in an additional reduction of our gross unrecognized tax benefits. However, it is uncertain whether a complete resolution and settlement of such matters would also result in resolution of all related and unrelated U.S. positions for all applicable years. Therefore, it is not possible to provide a range of potential outcomes associated with a reversal of our gross unrecognized tax benefits. Every quarter, we perform a realizability analysis to evaluate whether it is more likely than not that all or a portion of our deferred tax assets will not be realized. During the nine months ended December 31, 2020, we recognized an additional $41 million of valuation allowance against our deferred tax assets primarily due to the recognition of previously unrecognized tax benefits related to prior year tax positions and a change in current year estimated ordinary income.

Financing Arrangement

Financing Arrangement	9 Months Ended
	Dec. 31, 2020
Debt Instruments [Abstract]
Financing Arrangement	(11) FINANCING ARRANGEMENTS 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 is 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 December 31, 2020 As of March 31, 2020 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 (1) (1) Unamortized debt issuance costs (2) (3) Net carrying value of Senior Notes $ 997 $ 996 Fair value of Senior Notes (Level 2) $ 1,078 $ 1,030 As of December 31, 2020, the remaining life of the 2021 Notes and 2026 Notes is approximately 0.2 years and 5.2 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 2026 Notes are redeemable at our option at any time prior to December 1, 2025, subject to a make-whole premium. Within three months of maturity, we may redeem the 2026 Notes, 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. We redeemed $600 million aggregate principal amount of the 2021 Notes on February 1, 2021 plus accrued and unpaid interest of $9 million. Credit Facility On August 29, 2019, we entered into a $500 million unsecured revolving credit facility (“Credit Facility”) with a syndicate of banks. The Credit Facility terminates on August 29, 2024 unless the maturity is extended in accordance with its terms. The Credit Facility contains an option to arrange with existing lenders and/or new lenders to provide up to an aggregate of $500 million in additional commitments for revolving loans. Proceeds of loans made under the Credit Facility may be used for general corporate purposes. 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, and dispose of all or substantially all assets, 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 debt to EBITDA ratio. As of December 31, 2020, we were in compliance with the debt to EBITDA ratio. As of December 31, 2020, 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 nine months ended December 31, 2020 and 2019 that is included in interest and other income (expense), net on our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Amortization of debt issuance costs $ (1) $ — $ (2) $ (1) Coupon interest expense (10) (10) (31) (31) Total interest expense $ (11) $ (10) $ (33) $ (32)

Commitments And Contingencies

Commitments And Contingencies	9 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	(12) COMMITMENTS AND CONTINGENCIES 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), DFL Deutsche Fußball Liga E.V. (German Soccer League), and Liga Nacional De Futbol Profesional (professional soccer); National Basketball Association and National Basketball Players Association (professional basketball); National Hockey League and NHL Players’ Association (professional hockey); NFL Properties LLC, NFL Players Association and NFL Players Inc. on behalf of OneTeam Partners, LLC (professional football); William Morris Endeavor Entertainment LLC (professional mixed martial arts); ESPN (content in EA SPORTS games); Disney Interactive (Star Wars); and Fox Digital Entertainment, Inc. (The Simpsons). 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 December 31, 2020 (in millions): Fiscal Years Ending March 31, 2021 (Remaining Total three mos.) 2022 2023 2024 2025 2026 Thereafter Unrecognized commitments Developer/licensor commitments $ 1,839 $ 31 $ 307 $ 367 $ 357 $ 366 $ 273 $ 138 Marketing commitments 675 27 151 131 129 117 85 35 Senior Notes interest 102 7 20 19 19 19 18 — Operating lease imputed interest 31 2 7 5 4 3 2 8 Operating leases not yet commenced (a) 151 — 2 3 7 12 14 113 Other purchase obligations 99 15 59 20 3 1 1 — Total unrecognized commitments 2,897 82 546 545 519 518 393 294 Recognized commitments Senior Notes principal and interest 1,014 614 — — — — 400 — Operating leases 295 21 68 44 37 31 25 69 Transition Tax and other taxes 66 22 24 3 4 6 7 — Licensing commitments 34 7 27 — — — — — Total recognized commitments 1,409 664 119 47 41 37 432 69 Total Commitments $ 4,306 $ 746 $ 665 $ 592 $ 560 $ 555 $ 825 $ 363 (a) As of December 31, 2020, we have entered into four office leases that have not yet commenced with aggregate future lease payments of approximately $151 million. These office leases are expected to commence between the remainder of fiscal year 2021 and fiscal year 2023, and will have lease terms ranging from 5 to 12 years. 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 December 31, 2020; however, certain payment obligations may be accelerated depending on the performance of our operating results. In addition to what is included in the table above, as of December 31, 2020, we had a liability for unrecognized tax benefits and an accrual for the payment of related interest totaling $275 million, of which we are unable to make a reasonably reliable estimate of when cash settlement with a taxing authority will occur. Legal Proceedings The Netherlands Gambling Authority (“NGA”) has asserted that the randomized selection of virtual items in the FIFA Ultimate Team mode of our FIFA franchise contravenes the Dutch Betting and Gaming Act. On October 15, 2020, the District Court of the Hague affirmed the NGA’s decision. We have appealed the District Court’s order, and the NGA’s decision is suspended through the appeals process. We do not believe that the operational or financial consequences from these proceedings will have a material adverse effect on our Condensed Consolidated Financial Statements. We do not believe that our products and services violate applicable gambling laws. 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	9 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-Based Compensation	(13) STOCK-BASED COMPENSATION Valuation Assumptions We recognize compensation cost for stock-based awards to employees based on the awards’ estimated grant-date fair value using a straight-line approach over the service period for which such awards are expected to vest. We account for forfeitures as they occur. The estimation 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 estimate the fair value of our stock-based awards as follows: • Restricted Stock Units and Performance-Based Restricted Stock Units . The fair value of restricted stock units and performance-based restricted stock units (other than market-based 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 estimated 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 estimated 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. An expected term is estimated based on historical exercise behavior, post-vesting termination patterns, options outstanding and future expected exercise behavior. Stock Options The following table summarizes our stock option activity for the nine months ended December 31, 2020: Options Weighted- Weighted- Aggregate Outstanding as of March 31, 2020 1,074 $ 30.85 Granted 2 122.84 Exercised (790) 29.34 Forfeited, cancelled or expired — — Outstanding as of December 31, 2020 286 $ 35.78 3.49 $ 31 Vested and expected to vest 286 $ 35.78 3.49 $ 31 Exercisable as of December 31, 2020 286 $ 35.78 3.49 $ 31 The aggregate intrinsic value represents the total pre-tax intrinsic value based on our closing stock price as of December 31, 2020, 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 nine months ended December 31, 2020: Restricted Weighted- Outstanding as of March 31, 2020 6,217 $ 100.42 Granted 3,080 126.46 Vested (3,102) 103.39 Forfeited or cancelled (345) 107.52 Outstanding as of December 31, 2020 5,850 $ 112.14 Performance-Based Restricted Stock Units Our performance-based restricted stock units cliff vest after a four-year performance period contingent upon the achievement of pre-determined performance-based milestones based on our non-GAAP net revenue and free cash flow as well as service conditions. If these performance-based milestones are not met but service conditions are met, the performance-based restricted stock units will not vest, in which case any compensation expense we have recognized to date will be reversed. Each quarter, we update our assessment of the probability that the non-GAAP net revenue and free cash flow performance milestones will be achieved. We amortize the fair values of performance-based restricted stock units over the requisite service period. The performance-based restricted stock units contain threshold, target and maximum milestones for each of non-GAAP net revenue and free cash flow. The number of shares of common stock to be issued at vesting will range from zero to 200 percent of the target number of performance-based restricted stock units attributable to each performance-based milestone based on the company’s performance as compared to these threshold, target and maximum performance-based milestones. Each performance-based milestone is weighted evenly where 50 percent of the total performance-based restricted stock units that vest will be determined based on non-GAAP net revenue and the other 50 percent will be determined based on free cash flow. The number of shares that vest based on each performance-based milestone is independent from the other. The following table summarizes our performance-based restricted stock unit activity, presented with the maximum number of shares that could potentially vest, for the nine months ended December 31, 2020: Performance- Weighted- Outstanding as of March 31, 2020 579 $ 110.51 Granted — — Forfeited or cancelled — — Outstanding as of December 31, 2020 579 $ 110.51 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 issued at vesting will range from zero 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, over either a one-year, two-year cumulative, three-year cumulative period or a two-year and four-year cumulative period. The following table summarizes our market-based restricted stock unit activity, presented with the maximum number of shares that could potentially vest, for the nine months ended December 31, 2020: Market-Based Weighted- Outstanding as of March 31, 2020 1,898 $ 128.41 Granted 874 145.78 Vested (157) 113.72 Forfeited or cancelled (420) 137.69 Outstanding as of December 31, 2020 2,195 $ 134.60 Stock-Based Compensation Expense The following table summarizes stock-based compensation expense resulting from stock options, restricted stock units, market-based restricted stock units, performance-based restricted stock units, and the ESPP purchase rights included in our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Cost of revenue $ 1 $ 1 $ 4 $ 3 Research and development 74 60 214 170 Marketing and sales 11 10 34 27 General and administrative 25 20 74 56 Stock-based compensation expense $ 111 $ 91 $ 326 $ 256 During the three and nine months ended December 31, 2020, we recognized $8 million and $46 million, respectively, of deferred income tax benefit related to our stock-based compensation expense. During the three and nine months ended December 31, 2019, we recognized $6 million and $17 million, respectively, of deferred income tax benefit related to our stock-based compensation expense. As of December 31, 2020, our total unrecognized compensation cost related to restricted stock units, market-based restricted stock units, and performance-based restricted stock units was $645 million and is expected to be recognized over a weighted-average service period of 1.8 years. Of the $645 million of unrecognized compensation cost, $547 million relates to restricted stock units, $95 million relates to market-based restricted stock units, and $3 million relates to performance-based restricted stock units at an 88 percent average payout. Stock Repurchase Program In May 2018, a Special Committee of our Board of Directors, on behalf of the full Board of Directors, authorized a program to repurchase up to $2.4 billion of our common stock. Repurchases under the May 2018 program were completed in April 2020. In November 2020, our Board of Directors authorized a program to repurchase up to $2.6 billion of our common stock. This stock repurchase program expires on November 4, 2022. 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 a specific number of shares under this program and it may be modified, suspended or discontinued at any time. During the three months ended December 31, 2020, we repurchased approximately 2.5 million shares for approximately $326 million under this program. We are actively repurchasing shares under this program. The following table summarizes total shares repurchased during the three and nine months ended December 31, 2020 and 2019: May 2018 Program November 2020 Program Total (In millions) Shares Amount Shares Amount Shares Amount Three months ended December 31, 2020 — $ — 2.5 $ 326 2.5 $ 326 Nine months ended December 31, 2020 0.7 $ 78 2.5 $ 326 3.2 $ 404 Three months ended December 31, 2019 3.1 $ 305 — $ — 3.1 $ 305 Nine months ended December 31, 2019 9.6 $ 916 — $ — 9.6 $ 916

Earnings Per Share

Earnings Per Share	3 Months Ended
	Dec. 31, 2020
Earnings Per Share Reconciliation [Abstract]
Earnings Per Share	(14) EARNINGS 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, and ESPP purchase rights using the treasury stock method. Three Months Ended Nine Months Ended (In millions, except per share amounts) 2020 2019 2020 2019 Net income $ 211 $ 346 $ 761 $ 2,621 Shares used to compute earnings per share: Weighted-average common stock outstanding — basic 290 292 289 294 Dilutive potential common shares related to stock award plans and from assumed exercise of stock options 2 2 3 2 Weighted-average common stock outstanding — diluted 292 294 292 296 Earnings per share: Basic $ 0.73 $ 1.18 $ 2.63 $ 8.91 Diluted $ 0.72 $ 1.18 $ 2.61 $ 8.85 For the three and nine months ended December 31, 2020, two million of restricted stock units, market-based restricted stock units and performance-based restricted stock units were excluded from the treasury stock method computation of diluted shares, respectively, as their inclusion would have had an antidilutive effect. For the three and nine months ended December 31, 2019, two million of restricted stock units and market-based restricted stock units were excluded from the treasury stock method computation of diluted shares, respectively, as their inclusion would have had an antidilutive effect.

Segment and Revenue Information

Segment and Revenue Information	9 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Information	(15) SEGMENT AND REVENUE INFORMATION Our reporting segment is based upon: our internal organizational structure; the manner in which our operations are managed; the criteria used by our Chief Executive Officer, our Chief Operating Decision Maker (“CODM”), to evaluate segment performance; the availability of separate financial information; and overall materiality considerations. Our CODM currently reviews total company operating results to assess overall performance and allocate resources. As of December 31, 2020, we have only one reportable segment, which represents our only operating segment. Information about our total net revenue by timing of recognition for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Net revenue by timing of recognition Revenue recognized at a point in time $ 860 $ 772 $ 1,639 $ 1,649 Revenue recognized over time 813 821 2,644 2,501 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150 Generally, performance obligations that are recognized upfront upon transfer of control are classified as revenue recognized at a point in time, while performance obligations that are recognized over the estimated offering period or subscription period as the services are provided are classified as revenue recognized over time. Revenue recognized at a point in time includes revenue allocated to the software license performance obligation. This also includes revenue from the licensing of software to third-parties. Revenue recognized over time includes service revenue allocated to the future update rights and the online hosting performance obligations. This also includes service revenue allocated to the future update rights from the licensing of software to third-parties, online-only software services such as our Ultimate Team game mode, and subscription services. Information about our total net revenue by composition for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Net revenue by composition Full game downloads $ 347 $ 286 $ 733 $ 600 Packaged goods 375 403 630 931 Full game 722 689 1,363 1,531 Live services and other 951 904 2,920 2,619 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150 Full game net revenue includes full game downloads and packaged goods. Full game downloads includes revenue from digital sales of full games on console, PC, and mobile. Packaged goods includes revenue from software that is sold physically. This includes (1) net revenue from game software sold physically through traditional channels such as brick and mortar retailers, and (2) software licensing revenue from third parties (for example, makers of console platforms, personal computers or computer accessories) who include certain of our full games for sale with their products (for example, OEM bundles). Live services and other net revenue includes revenue from sales of extra content for console, PC and mobile games, licensing revenue from third-party publishing partners who distribute our games digitally, subscriptions, advertising, and non-software licensing. Information about our total net revenue by platform for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Platform net revenue Console $ 1,191 $ 1,163 $ 2,837 $ 2,846 PC and other 326 261 900 762 Mobile 156 169 546 542 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150 Information about our operations in North America and internationally for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Net revenue from unaffiliated customers North America $ 678 $ 690 $ 1,883 $ 1,711 International 995 903 2,400 2,439 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended	12 Months Ended
	Dec. 31, 2020	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair Value Measurements at Reporting Date Using As of December 31, 2020 Quoted Prices in Significant Significant Balance Sheet (Level 1) (Level 2) (Level 3) Assets Bank and time deposits $ 136 $ 136 $ — $ — Cash equivalents Money market funds 2,301 2,301 — — Cash equivalents Available-for-sale securities: Corporate bonds 686 — 686 — Short-term investments and cash equivalents U.S. Treasury securities 570 570 — — Short-term investments and cash equivalents U.S. agency securities 4 — 4 — Short-term investments Commercial paper 407 — 407 — Short-term investments and cash equivalents Foreign government securities 72 — 72 — Short-term investments Asset-backed securities 209 — 209 — Short-term investments Certificates of deposit 80 — 80 — Short-term investments and cash equivalents Foreign currency derivatives 22 — 22 — Other current assets and other assets Deferred compensation plan assets (a) 18 18 — — Other assets Total assets at fair value $ 4,505 $ 3,025 $ 1,480 $ — Liabilities Foreign currency derivatives $ 72 $ — $ 72 $ — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 18 18 — — Other liabilities Total liabilities at fair value $ 90 $ 18 $ 72 $ —	Fair Value Measurements at Reporting Date Using As of March 31, 2020 Quoted Prices in Significant Significant Balance Sheet (Level 1) (Level 2) (Level 3) Assets Bank and time deposits $ 78 $ 78 $ — $ — Cash equivalents Money market funds 1,599 1,599 — — Cash equivalents Available-for-sale securities: Corporate bonds 687 — 687 — Short-term investments and cash equivalents U.S. Treasury securities 603 603 — — Short-term investments and cash equivalents U.S. agency securities 8 — 8 — Short-term investments Commercial paper 414 — 414 — Short-term investments and cash equivalents Foreign government securities 42 — 42 — Short-term investments Asset-backed securities 269 — 269 — Short-term investments Certificates of deposit 56 — 56 — Short-term investments Foreign currency derivatives 76 — 76 — Other current assets and other assets Deferred compensation plan assets (a) 13 13 — — Other assets Total assets at fair value $ 3,845 $ 2,293 $ 1,552 $ — Liabilities Foreign currency derivatives $ 36 $ — $ 36 $ — Accrued and other current liabilities and other liabilities Deferred compensation plan liabilities (a) 14 14 — — Other liabilities Total liabilities at fair value $ 50 $ 14 $ 36 $ — (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, 2020, for additional information regarding our Deferred Compensation Plan.

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Fair Value Of Short-Term Investments	Short-term investments consisted of the following as of December 31, 2020 and March 31, 2020 (in millions): As of December 31, 2020 As of March 31, 2020 Cost or Gross Unrealized Fair Cost or Gross Unrealized Fair Gains Losses Gains Losses Corporate bonds $ 647 $ 1 $ — $ 648 $ 684 $ 1 $ (4) $ 681 U.S. Treasury securities 559 1 — 560 530 4 — 534 U.S. agency securities 4 — — 4 8 — — 8 Commercial paper 369 — — 369 377 — — 377 Foreign government securities 72 — — 72 42 — — 42 Asset-backed securities 208 1 — 209 273 — (4) 269 Certificates of deposit 76 — — 76 56 — — 56 Short-term investments $ 1,935 $ 3 $ — $ 1,938 $ 1,970 $ 5 $ (8) $ 1,967
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 December 31, 2020 and March 31, 2020 (in millions): As of December 31, 2020 As of March 31, 2020 Amortized Fair Amortized Fair Short-term investments Due within 1 year $ 1,579 $ 1,580 $ 1,568 $ 1,567 Due 1 year through 5 years 348 350 395 393 Due after 5 years 8 8 7 7 Short-term investments $ 1,935 $ 1,938 $ 1,970 $ 1,967

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	Total gross notional amounts and fair values for currency derivatives with cash flow hedge accounting designation are as follows (in millions): As of December 31, 2020 As of March 31, 2020 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 255 $ 19 $ — $ 316 $ 1 $ 19 Forward contracts to sell $ 1,135 $ 1 $ 69 $ 1,371 $ 61 $ 1 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 December 31, 2020 As of March 31, 2020 Notional Amount Fair Value Notional Amount Fair Value Asset Liability Asset Liability Forward contracts to purchase $ 599 $ 1 $ 1 $ 388 $ 1 $ 16 Forward contracts to sell $ 756 $ 1 $ 2 $ 292 $ 13 $ —
Derivative Instruments, Gain (Loss)	Three Months Ended December 31, Nine Months Ended December 31, 2020 2019 2020 2019 Net revenue Research and development Net revenue Research and development Net revenue Research and development Net revenue Research and development Total amounts presented in our Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded $ 1,673 $ 451 $ 1,593 $ 389 $ 4,283 $ 1,310 $ 4,150 $ 1,157 Gains (losses) on foreign currency forward contracts designated as cash flow hedges $ (22) $ 2 $ 18 $ (1) $ (10) $ (4) $ 59 $ (8) The effect of foreign currency forward contracts not designated as hedging instruments in our Condensed Consolidated Statements of Operations for the three and nine months ended December 31, 2020 and 2019 was as follows (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Interest and other income (expense), net Total amounts presented in our Condensed Consolidated Statements of Operations in which the effects of balance sheet hedges are recorded $ (6) $ 13 $ (19) $ 50 Gain (losses) on foreign currency forward contracts not designated as hedging instruments $ (13) $ (1) $ (20) $ (4)

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Dec. 31, 2020
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 December 31, 2020 and 2019 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 September 30, 2020 $ 4 $ (41) $ (52) $ (89) Other comprehensive income (loss) before reclassifications (2) (46) 23 (25) Amounts reclassified from accumulated other comprehensive income (loss) — 20 — 20 Total other comprehensive income (loss), net of tax (2) (26) 23 (5) Balances as of December 31, 2020 $ 2 $ (67) $ (29) $ (94) Unrealized Net Gains (Losses) on Available-for-Sale Securities Unrealized Net Gains (Losses) on Derivative Instruments Foreign Currency Translation Adjustments Total Balances as of September 30, 2019 $ 2 $ 47 $ (59) $ (10) Other comprehensive income (loss) before reclassifications (1) (12) 7 (6) Amounts reclassified from accumulated other comprehensive income (loss) — (17) — (17) Total other comprehensive income (loss), net of tax (1) (29) 7 (23) Balances as of December 31, 2019 $ 1 $ 18 $ (52) $ (33) The changes in accumulated other comprehensive income (loss) by component, net of tax, for the nine months ended December 31, 2020 and 2019 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, 2020 $ (4) $ 39 $ (85) $ (50) Other comprehensive income (loss) before reclassifications 6 (120) 56 (58) Amounts reclassified from accumulated other comprehensive income (loss) — 14 — 14 Total other comprehensive income (loss), net of tax 6 (106) 56 (44) Balances as of December 31, 2020 $ 2 $ (67) $ (29) $ (94) 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, 2019 $ (1) $ 22 $ (51) $ (30) Other comprehensive income (loss) before reclassifications 3 47 (1) 49 Amounts reclassified from accumulated other comprehensive income (loss) (1) (51) — (52) Total other comprehensive income (loss), net of tax 2 (4) (1) (3) Balances as of December 31, 2019 $ 1 $ 18 $ (52) $ (33)
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 nine months ended December 31, 2020 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended December 31, 2020 Nine Months Ended December 31, 2020 (Gains) losses on foreign currency forward contracts designated as cash flow hedges Net revenue $ 22 $ 10 Research and development (2) 4 Total net (gain) loss reclassified, net of tax $ 20 $ 14 The effects on net income of amounts reclassified from accumulated other comprehensive income (loss) for the three and nine months ended December 31, 2019 were as follows (in millions): Amount Reclassified From Accumulated Other Comprehensive Income (Loss) Statement of Operations Classification Three Months Ended December 31, 2019 Nine Months Ended December 31, 2019 (Gains) losses on foreign currency forward contracts designated as cash flow hedges Net revenue $ (18) $ (59) Research and development 1 8 Total net (gain) loss reclassified, net of tax $ (17) $ (51)

Goodwill And Acquisition-Rela_2

Goodwill And Acquisition-Related Intangibles, Net (Tables)	9 Months Ended
	Dec. 31, 2020
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 nine months ended December 31, 2020 are as follows (in millions): As of March 31, 2020 Activity Effects of Foreign Currency Translation As of December 31, 2020 Goodwill $ 2,253 $ — $ 11 $ 2,264 Accumulated impairment (368) — — (368) Total $ 1,885 $ — $ 11 $ 1,896
Schedule Of Acquisition-Related Intangibles	Acquisition-related intangibles consisted of the following (in millions): As of December 31, 2020 As of March 31, 2020 Gross Accumulated Acquisition- Gross Accumulated Acquisition- Developed and core technology $ 474 $ (458) $ 16 $ 474 $ (450) $ 24 Trade names and trademarks 161 (140) 21 161 (132) 29 Registered user base and other intangibles 5 (5) — 5 (5) — Carrier contracts and related 85 (85) — 85 (85) — Total $ 725 $ (688) $ 37 $ 725 $ (672) $ 53
Schedule Of Amoritization Of Intangibles	Amortization of intangibles for the three and nine months ended December 31, 2020 and 2019 are classified in the Condensed Consolidated Statements of Operations as follows (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Cost of revenue $ — $ 5 $ — $ 9 Operating expenses 5 5 16 16 Total $ 5 $ 10 $ 16 $ 25
Schedule Of Future Amortization Of Acquisition-Related Intangibles	As of December 31, 2020, future amortization of finite-lived acquisition-related intangibles that will be recorded in the Condensed Consolidated Statements of Operations is estimated as follows (in millions): Fiscal Year Ending March 31, 2021 (remaining three months) $ 6 2022 22 2023 9 2024 and thereafter — Total $ 37

Royalties And Licenses (Tables)

Royalties And Licenses (Tables)	9 Months Ended
	Dec. 31, 2020
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 December 31, 2020 As of March 31, 2020 Other current assets $ 25 $ 74 Other assets 21 25 Royalty-related assets $ 46 $ 99
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 December 31, 2020 As of March 31, 2020 Accrued royalties $ 267 $ 171 Other liabilities 7 26 Royalty-related liabilities $ 274 $ 197

Balance Sheet Details (Tables)

Balance Sheet Details (Tables)	9 Months Ended
	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Property And Equipment, Net Schedule	Property and equipment, net, as of December 31, 2020 and March 31, 2020 consisted of (in millions): As of December 31, 2020 As of March 31, 2020 Computer, equipment and software $ 827 $ 722 Buildings 357 340 Leasehold improvements 172 161 Equipment, furniture and fixtures, and other 89 83 Land 66 65 Construction in progress 5 20 1,516 1,391 Less: accumulated depreciation (1,049) (942) Property and equipment, net $ 467 $ 449
Accrued And Other Current Liabilities Schedule	Accrued and other current liabilities as of December 31, 2020 and March 31, 2020 consisted of (in millions): As of December 31, 2020 As of March 31, 2020 Other accrued expenses $ 360 $ 273 Accrued compensation and benefits 402 326 Accrued royalties 267 171 Sales returns and price protection reserves 182 109 Deferred net revenue (other) 126 104 Operating lease liabilities 86 69 Accrued and other current liabilities $ 1,423 $ 1,052
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]	Deferred net revenue as of December 31, 2020 and March 31, 2020 consisted of (in millions): As of December 31, 2020 As of March 31, 2020 Deferred net revenue (online-enabled games) $ 1,380 $ 945 Deferred net revenue (other) 126 104 Deferred net revenue (noncurrent) 17 8 Total Deferred net revenue $ 1,523 $ 1,057

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule Of Unrecognized Tax Benefits	The total unrecognized tax benefits as of December 31, 2020 were $563 million: Balance as of March 31, 2020 $ 983 Increases in unrecognized tax benefits related to prior year tax positions 5 Decreases in unrecognized tax benefits related to prior year tax positions (441) Increases in unrecognized tax benefits related to current year tax positions 35 Decreases in unrecognized tax benefits related to settlements with taxing authorities (2) Reductions in unrecognized tax benefits due to lapse of applicable statute of limitations (24) Changes in unrecognized tax benefits due to foreign currency translation 7 Balance as of December 31, 2020 $ 563

Financing Arrangement (Tables)

Financing Arrangement (Tables)	9 Months Ended
	Dec. 31, 2020
Debt Instruments [Abstract]
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 December 31, 2020 As of March 31, 2020 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 (1) (1) Unamortized debt issuance costs (2) (3) Net carrying value of Senior Notes $ 997 $ 996 Fair value of Senior Notes (Level 2) $ 1,078 $ 1,030
Schedule Of Interest Expense	The following table summarizes our interest expense recognized for the three and nine months ended December 31, 2020 and 2019 that is included in interest and other income (expense), net on our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Amortization of debt issuance costs $ (1) $ — $ (2) $ (1) Coupon interest expense (10) (10) (31) (31) Total interest expense $ (11) $ (10) $ (33) $ (32)

Commitments And Contingencies (

Commitments And Contingencies (Tables)	9 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Minimum Contractual Obligations	The following table summarizes our minimum contractual obligations as of December 31, 2020 (in millions): Fiscal Years Ending March 31, 2021 (Remaining Total three mos.) 2022 2023 2024 2025 2026 Thereafter Unrecognized commitments Developer/licensor commitments $ 1,839 $ 31 $ 307 $ 367 $ 357 $ 366 $ 273 $ 138 Marketing commitments 675 27 151 131 129 117 85 35 Senior Notes interest 102 7 20 19 19 19 18 — Operating lease imputed interest 31 2 7 5 4 3 2 8 Operating leases not yet commenced (a) 151 — 2 3 7 12 14 113 Other purchase obligations 99 15 59 20 3 1 1 — Total unrecognized commitments 2,897 82 546 545 519 518 393 294 Recognized commitments Senior Notes principal and interest 1,014 614 — — — — 400 — Operating leases 295 21 68 44 37 31 25 69 Transition Tax and other taxes 66 22 24 3 4 6 7 — Licensing commitments 34 7 27 — — — — — Total recognized commitments 1,409 664 119 47 41 37 432 69 Total Commitments $ 4,306 $ 746 $ 665 $ 592 $ 560 $ 555 $ 825 $ 363

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure Of Stock-Based Compensation Arrangements By Stock-Based Payment Award	The following table summarizes stock-based compensation expense resulting from stock options, restricted stock units, market-based restricted stock units, performance-based restricted stock units, and the ESPP purchase rights included in our Condensed Consolidated Statements of Operations (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Cost of revenue $ 1 $ 1 $ 4 $ 3 Research and development 74 60 214 170 Marketing and sales 11 10 34 27 General and administrative 25 20 74 56 Stock-based compensation expense $ 111 $ 91 $ 326 $ 256
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure Of Stock-Based Compensation Arrangements By Stock-Based Payment Award	The following table summarizes our stock option activity for the nine months ended December 31, 2020: Options Weighted- Weighted- Aggregate Outstanding as of March 31, 2020 1,074 $ 30.85 Granted 2 122.84 Exercised (790) 29.34 Forfeited, cancelled or expired — — Outstanding as of December 31, 2020 286 $ 35.78 3.49 $ 31 Vested and expected to vest 286 $ 35.78 3.49 $ 31 Exercisable as of December 31, 2020 286 $ 35.78 3.49 $ 31
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	The following table summarizes our restricted stock unit activity for the nine months ended December 31, 2020: Restricted Weighted- Outstanding as of March 31, 2020 6,217 $ 100.42 Granted 3,080 126.46 Vested (3,102) 103.39 Forfeited or cancelled (345) 107.52 Outstanding as of December 31, 2020 5,850 $ 112.14
Performance 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	The following table summarizes our performance-based restricted stock unit activity, presented with the maximum number of shares that could potentially vest, for the nine months ended December 31, 2020: Performance- Weighted- Outstanding as of March 31, 2020 579 $ 110.51 Granted — — Forfeited or cancelled — — Outstanding as of December 31, 2020 579 $ 110.51
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	The following table summarizes our market-based restricted stock unit activity, presented with the maximum number of shares that could potentially vest, for the nine months ended December 31, 2020: Market-Based Weighted- Outstanding as of March 31, 2020 1,898 $ 128.41 Granted 874 145.78 Vested (157) 113.72 Forfeited or cancelled (420) 137.69 Outstanding as of December 31, 2020 2,195 $ 134.60
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	The following table summarizes total shares repurchased during the three and nine months ended December 31, 2020 and 2019: May 2018 Program November 2020 Program Total (In millions) Shares Amount Shares Amount Shares Amount Three months ended December 31, 2020 — $ — 2.5 $ 326 2.5 $ 326 Nine months ended December 31, 2020 0.7 $ 78 2.5 $ 326 3.2 $ 404 Three months ended December 31, 2019 3.1 $ 305 — $ — 3.1 $ 305 Nine months ended December 31, 2019 9.6 $ 916 — $ — 9.6 $ 916

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Dec. 31, 2020
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, and ESPP purchase rights using the treasury stock method. Three Months Ended Nine Months Ended (In millions, except per share amounts) 2020 2019 2020 2019 Net income $ 211 $ 346 $ 761 $ 2,621 Shares used to compute earnings per share: Weighted-average common stock outstanding — basic 290 292 289 294 Dilutive potential common shares related to stock award plans and from assumed exercise of stock options 2 2 3 2 Weighted-average common stock outstanding — diluted 292 294 292 296 Earnings per share: Basic $ 0.73 $ 1.18 $ 2.63 $ 8.91 Diluted $ 0.72 $ 1.18 $ 2.61 $ 8.85

Segment and Revenue (Tables)

Segment and Revenue (Tables)	9 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Disaggregation of Revenue	Information about our total net revenue by timing of recognition for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Net revenue by timing of recognition Revenue recognized at a point in time $ 860 $ 772 $ 1,639 $ 1,649 Revenue recognized over time 813 821 2,644 2,501 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150
Net Revenue By Revenue Composition	Information about our total net revenue by composition for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Net revenue by composition Full game downloads $ 347 $ 286 $ 733 $ 600 Packaged goods 375 403 630 931 Full game 722 689 1,363 1,531 Live services and other 951 904 2,920 2,619 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150
Net Revenue by Platform	Information about our total net revenue by platform for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Platform net revenue Console $ 1,191 $ 1,163 $ 2,837 $ 2,846 PC and other 326 261 900 762 Mobile 156 169 546 542 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150
Net Revenue By Geographic Area	Information about our operations in North America and internationally for the three and nine months ended December 31, 2020 and 2019 is presented below (in millions): Three Months Ended Nine Months Ended 2020 2019 2020 2019 Net revenue from unaffiliated customers North America $ 678 $ 690 $ 1,883 $ 1,711 International 995 903 2,400 2,439 Net revenue $ 1,673 $ 1,593 $ 4,283 $ 4,150

Description Of Business And B_2

Description Of Business And Basis Of Presentation Fiscal Period (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Fiscal Period
Current and Prior Years Fiscal Period (in weeks)			53	52
Current and Prior Years Fiscal Quarter Period (in weeks)	13	13	40	39
Minimum
Fiscal Period
Fiscal Year			52
Maximum
Fiscal Period
Fiscal Year			53

Description Of Business And B_3

Description Of Business And Basis Of Presentation Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Change in Accounting Estimate [Line Items]
Decrease in Net Revenue due to Change in Estimated Offering Period	$ 125,000,000	$ 151,000,000
Decrease in Net Income due to Change in Estimated Offering Period	105,000,000	125,000,000
Decrease in Diluted Earnings Per Share due to Change in Estimated Offering Period	$ 0.36	$ 0.43

(Fair Value Of Assets And Liabi

(Fair Value Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Quoted Prices In Active Markets For Identical Financial Instruments (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value	$ 3,025	$ 2,293
Total liabilities at fair value	18	14
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value	1,480	1,552
Total liabilities at fair value	72	36
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 | 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	4	8
Short-term investments | Significant Other Observable Inputs (Level 2) | Debt Security, Government, Non-US [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	72	42
Short-term investments | Significant Other Observable Inputs (Level 2) | Asset-backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Asset-backed securities	209	269
Short-term investments | Significant Other Observable Inputs (Level 2) | Certificates of Deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	80	56
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	570	603
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	686	687
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	407	414
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	136	78
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	2,301	1,599
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	22	76
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	18	13
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	72	36
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	18	14
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total assets at fair value	4,505	3,845
Total liabilities at fair value	90	50
Fair Value | Short-term investments | U.S. agency securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	4	8
Fair Value | Short-term investments | Debt Security, Government, Non-US [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	72	42
Fair Value | Short-term investments | Asset-backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Asset-backed securities	209	269
Fair Value | Short-term investments | Certificates of Deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	80	56
Fair Value | Short-Term Investments And Cash Equivalents | Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	686	687
Fair Value | Short-Term Investments And Cash Equivalents | U.S. Treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	570	603
Fair Value | Short-Term Investments And Cash Equivalents | Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Available-for-sale of securities	407	414
Fair Value | Cash Equivalents | Bank Time Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Cash equivalents	136	78
Fair Value | Cash Equivalents | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Cash equivalents	2,301	1,599
Fair Value | Other Current Assets and Other Assets [Domain] | Foreign currency derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Foreign currency derivatives, assets	22	76
Fair Value | Other assets | Deferred compensation plan assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Deferred compensation plan assets	18	13
Fair Value | Accrued and Other Current Liabilities and Other Liabilities | Foreign currency derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Foreign currency derivatives, liabilities	72	36
Fair Value | Other liabilities | Deferred Compensation Plan Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value, Deferred compensation plan assets	$ 18	$ 14

Financial Instruments (Narrativ

Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Financial Instruments [Abstract]
Cash and cash equivalents	$ 4,772	$ 3,768	$ 3,603	$ 4,708

Financial Instruments (Fair Val

Financial Instruments (Fair Value Of Short-Term Investments) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Dec. 31, 2020	Mar. 31, 2020
Financial Instruments
Fair Value	$ 1,938	$ 1,967	[1]
Short-term investments
Financial Instruments
Cost or Amortized Cost	1,935	1,970
Gross Unrealized Gains	3	5
Gross Unrealized Losses	0	(8)
Fair Value	1,938	1,967
Short-term investments | Corporate bonds
Financial Instruments
Cost or Amortized Cost	647	684
Gross Unrealized Gains	1	1
Gross Unrealized Losses	0	(4)
Fair Value	648	681
Short-term investments | U.S. Treasury securities
Financial Instruments
Cost or Amortized Cost	559	530
Gross Unrealized Gains	1	4
Gross Unrealized Losses	0	0
Fair Value	560	534
Short-term investments | U.S. agency securities
Financial Instruments
Cost or Amortized Cost	4	8
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	4	8
Short-term investments | Commercial paper
Financial Instruments
Cost or Amortized Cost	369	377
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	369	377
Short-term investments | Debt Security, Government, Non-US [Member]
Financial Instruments
Cost or Amortized Cost	72	42
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	72	42
Short-term investments | Asset-backed Securities [Member]
Financial Instruments
Cost or Amortized Cost	208	273
Gross Unrealized Gains	1	0
Gross Unrealized Losses	0	(4)
Fair Value	209	269
Short-term investments | Certificates of Deposit [Member]
Financial Instruments
Cost or Amortized Cost	76	56
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 76	$ 56
[1]	Derived from audited Consolidated Financial Statements.

Financial Instruments (Fair V_2

Financial Instruments (Fair Value Of Short-Term Investments By Stated Maturity Date Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Financial Instruments
Short-term investments, Fair Value	$ 1,938	$ 1,967	[1]
Short-term investments
Financial Instruments
Due in 1 year or less, Amortized Cost	1,579	1,568
Due in 1 year or less, Fair Value	1,580	1,567
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	348	395
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	350	393
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	8	7
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	8	7
Short-term investments, Amortized Cost	1,935	1,970
Short-term investments, Fair Value	$ 1,938	$ 1,967
[1]	Derived from audited Consolidated Financial Statements.

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details)	9 Months Ended
	Dec. 31, 2020
Designated as Hedging Instrument [Member]
Derivative
Maximum Remaining Maturity of Foreign Currency Derivatives	18 months
Not Designated as Hedging Instrument [Member]
Derivative
Maximum Remaining Maturity of Foreign Currency Derivatives	3 months

Derivative Financial Instrume_4

Derivative Financial Instruments Gross Notional Amounts and Fair Values for Currency Derivatives (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Foreign exchange forward contracts to purchase [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of foreign currency contracts outstanding, Assets	$ 19	$ 1
Fair value of foreign currency contracts outstanding, Liabilities	0	19
Foreign exchange forward contracts to sell [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of foreign currency contracts outstanding, Assets	1	61
Fair value of foreign currency contracts outstanding, Liabilities	69	1
Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to purchase [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	255	316
Designated as Hedging Instrument [Member] | Foreign exchange forward contracts to sell [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,135	1,371
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	599	388
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	756	292
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	1	1
Derivative Liability, Current	1	16
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	1	13
Derivative Liability, Current	$ 2	$ 0

Location of Income (Expense) Re

Location of Income (Expense) Recognized in Income on Derivative, Non-Designated Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Derivative
Net revenue	$ 1,673	$ 1,593	$ 4,283	$ 4,150
Research and development	451	389	1,310	1,157
Interest and other income (expense), net	(6)	13	(19)	50
Sales Revenue, Net
Derivative
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	(22)	18	(10)	59
Research And Development [Member]
Derivative
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	2	(1)	(4)	(8)
Interest and Other Income (Expense), net
Derivative
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (13)	$ (1)	$ (20)	$ (4)

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020		Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (89)	$ (10)	$ (50)	[1]	$ (30)
Other comprehensive income (loss) before reclassifications	(25)	(6)	(58)		49
Amounts reclassified from accumulated other comprehensive income (loss)	20	(17)	14		(52)
Total other comprehensive income (loss), net of tax	(5)	(23)	(44)		(3)
Ending balance	(94)	(33)	(94)		(33)
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	4	2	(4)		(1)
Other comprehensive income (loss) before reclassifications	(2)	(1)	6		3
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0		(1)
Total other comprehensive income (loss), net of tax	(2)	(1)	6		2
Ending balance	2	1	2		1
Unrealized Gains (Losses) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(41)	47	39		22
Other comprehensive income (loss) before reclassifications	(46)	(12)	(120)		47
Amounts reclassified from accumulated other comprehensive income (loss)	20	(17)	14		(51)
Total other comprehensive income (loss), net of tax	(26)	(29)	(106)		(4)
Ending balance	(67)	18	(67)		18
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(52)	(59)	(85)		(51)
Other comprehensive income (loss) before reclassifications	23	7	56		(1)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0		0
Total other comprehensive income (loss), net of tax	23	7	56		(1)
Ending balance	$ (29)	$ (52)	$ (29)		$ (52)
[1]	Derived from audited Consolidated Financial Statements.

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		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	$ 20	$ (17)	$ 14	$ (52)
Unrealized Gains (Losses) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	20	(17)	14	(51)
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)	22	(18)	10	(59)
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)	$ (2)	$ 1	$ 4	$ 8

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	$ 20	$ (17)	$ 14	$ (52)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	$ 20	$ (17)	$ 14	$ (51)

Business Combinations (Details)

Business Combinations (Details) £ / shares in Units, $ / shares in Units, £ in Millions, $ in Millions	Feb. 08, 2021USD ($)$ / shares	Feb. 03, 2021	Dec. 14, 2020GBP (£)£ / shares	Dec. 14, 2020USD ($)
Codemasters Group Holdings plc [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross			£ 945	$ 1,300
Business Acquisition, Share Price | £ / shares			£ 6.04
Date of Announcement Pursuant to Rule 2.7 of the United Kingdom City Code on Takeovers and Mergers			Dec. 14, 2020	Dec. 14, 2020
Codemasters Group Holdings plc [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Date of Shareholders Voting to Approve the Acquisition		Feb. 3, 2021
Glu Mobile Inc. [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 2,400
Business Acquisition, Share Price | $ / shares	$ 12.50
Payments to Acquire Businesses, Net of Cash Acquired	$ 2,100
Date of Announcement to Enter into a Definitive Merger Agreement	Feb. 8, 2021
Cash Acquired from Acquisition	$ 364

Goodwill And Acquisition-Rela_3

Goodwill And Acquisition-Related Intangibles, Net (Narrative) (Details)	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Dec. 31, 2020
Minimum
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life		1 year
Maximum
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life		5 years
Weighted Average
Finite-Lived Intangible Assets
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years 4 months 24 days	1 year 8 months 12 days

Goodwill And Acquisition-Rela_4

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Changes In The Carrying Amount Of Goodwill) (Details) $ in Millions	9 Months Ended
	Dec. 31, 2020USD ($)
Goodwill [Roll Forward]
Goodwill, Gross, Beginning balance	$ 2,253
Accumulated impairment, beginning balance	(368)
Goodwill, Net, Beginning balance	1,885	[1]
Goodwill acquired	0
Effects of foreign currency translation	11
Goodwill, Gross, Ending balance	2,264
Accumulated impairment, ending balance	(368)
Goodwill, Net, Ending balance	$ 1,896
[1]	Derived from audited Consolidated Financial Statements.

Goodwill And Acquisition-Rela_5

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Acquisition-Related Intangibles) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Finite-Lived Intangible Assets
Gross carrying amount	$ 725	$ 725
Accumulated amortization	(688)	(672)
Acquisition-related intangibles, net	37	53	[1]
Developed And Core Technology
Finite-Lived Intangible Assets
Gross carrying amount	474	474
Accumulated amortization	(458)	(450)
Acquisition-related intangibles, net	16	24
Trade Names And Trademarks
Finite-Lived Intangible Assets
Gross carrying amount	161	161
Accumulated amortization	(140)	(132)
Acquisition-related intangibles, net	21	29
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-Rela_6

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Amortization Of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 5	$ 5	$ 16	$ 16
Cost of revenue
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	0	5	0	9
Operating expenses
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	5	5	16	16
Total amortization
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 5	$ 10	$ 16	$ 25

Goodwill And Acquisition-Rela_7

Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Future Amortization Of Acquisition-Related Intangibles) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020	[1]
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 6
Finite-Lived Intangible Assets, Amortization Expense, Year Two	22
Finite-Lived Intangible Assets, Amortization Expense, Year Three	9
Finite-Lived Intangible Assets, Amortization Expense, Year Four	0
Finite-Lived Intangible Assets, Net	37	$ 53
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year through after Year Five [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Net	$ 37
[1]	Derived from audited Consolidated Financial Statements.

Royalties And Licenses (Schedul

Royalties And Licenses (Schedule Of Royalty-Related Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Royalties and Licenses
Royalty-related assets	$ 46	$ 99
Other Current Assets
Royalties and Licenses
Royalty-related assets	25	74
Other assets
Royalties and Licenses
Royalty-related assets	$ 21	$ 25

Royalties And Licenses (Sched_2

Royalties And Licenses (Schedule Of Royalty-Related Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Royalty Related Liabilities
Royalty-related liabilities	$ 274	$ 197
Accrued royalties
Royalty Related Liabilities
Royalty-related liabilities	267	171
Other liabilities
Royalty Related Liabilities
Royalty-related liabilities	$ 7	$ 26

Royalties And Licenses (Narrati

Royalties And Licenses (Narrative) (Details) $ in Millions	Dec. 31, 2020USD ($)
Royalties And Licenses
Unrecorded Unconditional Purchase Obligation (Royalties and Licenses)	$ 2,897
Developer Commitments
Royalties And Licenses
Unrecorded Unconditional Purchase Obligation (Royalties and Licenses)	$ 1,839

Balance Sheet Details (Narrativ

Balance Sheet Details (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020	[1]
Remaining Performance Obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months		12 months
Depreciation expense	$ 37	$ 29	$ 100	$ 89
Deferred Revenue, Current	1,380		1,380		$ 945
Deferred Revenue, Revenue Recognized			1,002	$ 1,169
Unsatisfied Performance Obligations [Member]
Remaining Performance Obligations
Revenue, Remaining Performance Obligation, Amount	$ 33		$ 33
[1]	Derived from audited Consolidated Financial Statements.

Balance Sheet Details (Property

Balance Sheet Details (Property And Equipment, Net Schedule) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Property and Equipment, Net [Line Items]
Property and equipment, gross	$ 1,516		$ 1,516		$ 1,391
Less: accumulated depreciation	(1,049)		(1,049)		(942)
Property and equipment, net	467		467		449	[1]
Depreciation expense	37	$ 29	100	$ 89
Computer, equipment and software
Property and Equipment, Net [Line Items]
Property and equipment, gross	827		827		722
Buildings
Property and Equipment, Net [Line Items]
Property and equipment, gross	357		357		340
Leasehold improvements
Property and Equipment, Net [Line Items]
Property and equipment, gross	172		172		161
Equipment, furniture and fixtures, and other
Property and Equipment, Net [Line Items]
Property and equipment, gross	89		89		83
Land
Property and Equipment, Net [Line Items]
Property and equipment, gross	66		66		65
Construction in progress
Property and Equipment, Net [Line Items]
Property and equipment, gross	$ 5		$ 5		$ 20
[1]	Derived from audited Consolidated Financial Statements.

Balance Sheet Details (Accrued

Balance Sheet Details (Accrued And Other Current Liabilities Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Other accrued expenses	$ 360	$ 273
Accrued compensation and benefits	402	326
Accrued royalties	267	171
Contract with Customer, Liability, Current	182	109
Deferred net revenue, other	126	104
Operating Lease, Liability, Current	86	69
Accrued and other current liabilities	$ 1,423	$ 1,052	[1]
[1]	Derived from audited Consolidated Financial Statements.

Balance Sheet Details (Deferred

Balance Sheet Details (Deferred Net Revenue) (Details) - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Current	$ 1,380		$ 945	[1]
Deferred Revenue, Revenue Recognized	1,002	$ 1,169
Online enabled games [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Current	1,380		945
Other [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Current	126		104
Noncurrent [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Noncurrent	17		8
Total [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	$ 1,523		$ 1,057
[1]	Derived from audited Consolidated Financial Statements.

Balance Sheet Details (Remainin

Balance Sheet Details (Remaining Performance Obligations) (Details) $ in Millions	Dec. 31, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months
Total deferred revenue [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 1,523

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2020	Mar. 31, 2020
Income Tax Footnote Disclosure [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount				$ 41
Gross unrecognized tax benefits	$ 563		$ 90	$ 563			$ 983
Effective Income Tax Rate Reconciliation, Percent	14.00%	8.00%		11.00%	(140.00%)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability		$ 630
Deferred Tax Asset, Intra-entity Transfer, Asset Other than Inventory			$ 1,170
Deferred Tax Asset, Period Of Reversal			20 years
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions				$ 5
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions				(441)
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions				35
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities				(2)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations				(24)
Unrecognized Tax Benefits Changes Resulting From Foreign Currency Translation				$ 7
Pro Forma [Member]
Income Tax Footnote Disclosure [Line Items]
Effective Income Tax Rate Reconciliation, Percent		16.00%			14.00%
Reclassification, Other [Member]
Income Tax Footnote Disclosure [Line Items]
Taxes Payable, Current						$ 80

Financing Arrangement (Senior N

Financing Arrangement (Senior Notes) (Details) - USD ($) $ in Millions	Feb. 01, 2021	Feb. 04, 2016	Dec. 31, 2020	Mar. 31, 2020		Feb. 24, 2016
Debt Instrument [Line Items]
Proceeds from Issuance of Senior Long-term Debt		$ 989
Senior Notes, Noncurrent			$ 397	$ 397	[1]
Senior Notes			$ 997	996
2021 Notes
Debt Instrument [Line Items]
Long-term Debt						$ 600
Debt Instrument, Interest Rate, Stated Percentage						3.70%
Debt Instrument, Maturity Date		Mar. 1, 2021
Effective interest rate						3.94%
Debt Instrument, Convertible, Remaining Discount Amortization Period			2 months 12 days
2021 Notes | Subsequent Event [Member]
Debt Instrument [Line Items]
Repayments of Unsecured Debt	$ 600
Debt Instrument, Redemption Period, End Date	Feb. 1, 2021
Debt Instrument, Periodic Payment, Interest	$ 9
2026 Notes
Debt Instrument [Line Items]
Long-term Debt						$ 400
Debt Instrument, Interest Rate, Stated Percentage						4.80%
Debt Instrument, Maturity Date		Mar. 1, 2026
Effective interest rate						4.97%
Debt Instrument, Convertible, Remaining Discount Amortization Period			5 years 2 months 12 days
Senior Notes
Debt Instrument [Line Items]
Long-term Debt						$ 1,000
Debt Instrument, Unamortized Discount (Premium), Net			$ (1)	(1)		(2)
Debt Issuance Costs, Noncurrent, Net			(2)	(3)		$ (9)
Senior Notes, Frequency of Periodic Payment		semiannually
Debt Instrument, Fair Value Disclosure			$ 1,078	$ 1,030
Debt Instrument, Redemption Price, Percentage			100.00%
Change of control repurchase event
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage			101.00%
[1]	Derived from audited Consolidated Financial Statements.

Financing Arrangement (Line of

Financing Arrangement (Line of Credit Facility) (Details) - Revolving Credit Facility [Member] $ in Millions	9 Months Ended
	Dec. 31, 2020USD ($)
Line of Credit Facility [Line Items]
Credit Facility, Maximum Borrowing Capacity	$ 500
Option To Request Additional Commitments On Credit Facility	500
Debt issuance costs	$ 2
Line of Credit Facility Term	5

Financing Arrangement (Schedule

Financing Arrangement (Schedule Of Interest Expense Related To Notes) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Debt Instruments [Abstract]
Amortization of debt issuance costs	$ (1)	$ 0	$ (2)	$ (1)
Coupon interest expense	(10)	(10)	(31)	(31)
Total interest expense	$ (11)	$ (10)	$ (33)	$ (32)

Commitments And Contingencies_2

Commitments And Contingencies (Narrative) (Details) $ in Millions	Dec. 31, 2020USD ($)
Loss Contingencies [Line Items]
Unrecorded Unconditional Purchase Obligation	$ 2,897
Liability for Uncertainty in Income Taxes, Noncurrent	$ 275

Commitments And Contingencies_3

Commitments And Contingencies (Minimum Contractual Obligations) (Details) $ in Millions	Dec. 31, 2020USD ($)
Long-term Purchase Commitment [Line Items]
Unrecorded Total	$ 2,897
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	82
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	546
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	545
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	519
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	518
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	393
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	294
Recorded Total	1,409
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	664
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	119
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	47
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	41
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	37
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	432
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	69
TotalUnconditionalPurchaseObligationBalanceSheetAmount	4,306
TotalUnconditionalPurchaseObligationBalanceSheetAmountRemainingForCurrentFiscalYear	746
Total Unconditional PurchaseObligationBalanceSheetAmountOneYearAfterFiscalYearEnd	665
Total Unconditional Purchase Obligation Balance Sheet Amount Two Years After Fiscal Year End	592
TotalUnconditionalPurchaseObligationBalanceSheetAmountThreeYearsAfterFiscalYearEnd	560
TotalUnconditionalPurchaseObligationBalanceSheetAmountFourYearsAfterFiscalYearEnd	555
Total Unconditional Purchase Obligation Balance Sheet Amount Five Years After Fiscal Year End	825
TotalUnconditionalPurchaseObligationBalanceSheetAmountThereafter	$ 363
Minimum
Long-term Purchase Commitment [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	5 years
Maximum
Long-term Purchase Commitment [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	12 years
Developer Commitments
Long-term Purchase Commitment [Line Items]
Unrecorded Total	$ 1,839
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	31
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	307
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	367
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	357
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	366
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	273
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	138
Marketing [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	675
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	27
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	151
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	131
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	129
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	117
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	85
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	35
Senior Notes Interest [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	102
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	7
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	20
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	18
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Operating Lease Imputed Interest [Member] [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	31
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	2
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	5
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	4
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	3
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	2
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	8
Other Unrecorded Purchase Obligations [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	99
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	15
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	59
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	20
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	3
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	1
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	1
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Senior Notes Principal And Interest [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	1,014
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	614
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	400
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Operating Lease [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	151
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	0
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	2
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	3
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	12
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	14
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	113
Recorded Total	295
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	21
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	68
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	44
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	37
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	31
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	25
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	69
Transition And Other Taxes [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	66
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	22
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	24
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	3
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	4
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	6
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	7
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
License obligations [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	34
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	7
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	27
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	$ 0

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 11, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase and retirement of common stock	$ 326	$ 0	$ 78	$ 305	$ 306	$ 305
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	$ 95						$ 95
Market-Based Restricted Stock Units [Member] | 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%
Market-Based Restricted Stock Units [Member] | 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%
Performance 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	$ 3						$ 3
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage							88.00%
Performance Based Restricted Stock Units [Member] | 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%
Performance Based Restricted Stock Units [Member] | 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%
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	$ 645						$ 645
Weighted-average service period							1 year 9 months 18 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to stock options and restricted stock rights	$ 547						$ 547
May 2018 Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of common stock authorized for repurchase										$ 2,400
Stock Repurchased and Retired During Period, Shares	0			3.1			0.7	9.6
Repurchase and retirement of common stock	$ 0			$ 305			$ 78	$ 916
Stock-based compensation expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Income Tax Expense (Benefit)	$ 8			$ 6				$ 46	$ 17
Free cash flow [Member] | Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement Performance-based Milestone Percentage	50.00%						50.00%

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
	Dec. 31, 2020USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options, Outstanding, Beginning Balance | shares	1,074
Options, Granted | shares	2
Options, Exercised | shares	(790)
Options, Forfeited, cancelled or expired | shares	0
Options, Outstanding, Ending Balance | shares	286
Options, Vested and expected to vest | shares	286
Options, Exercisable | shares	286
Weighted-average exercise price of options outstanding, beginning balance | $ / shares	$ 30.85
Weighted-average exercise price of options granted during period | $ / shares	122.84
Weighted-average exercise price of options exercised during the period | $ / shares	29.34
Weighted-average exercise price of options forfeited, cancelled or expired during the period | $ / shares	0
Weighted-average exercise price of options outstanding, ending balance | $ / shares	35.78
Weighted-average exercise price of options vested and expected to vest | $ / shares	35.78
Weighted-average exercise price of options exercisable | $ / shares	$ 35.78
Weighted-average remaining contractual term of options outstanding	3 years 5 months 26 days
Weighted-average remaining contractual term of options vested and expected to vest	3 years 5 months 26 days
Weighted-average remaining contractual term of options exercisable	3 years 5 months 26 days
Aggregate intrinsic value of options outstanding | $	$ 31
Aggregate intrinsic value of options vested and expected to vest | $	31
Aggregate intrinsic value of options exercisable | $	$ 31

Stock-Based Compensation (Sch_2

Stock-Based Compensation (Schedule Of Restricted Stock Rights Activity, Excluding Performance-Based Activity) (Details) - Restricted Stock Rights [Member] shares in Thousands	9 Months Ended
	Dec. 31, 2020$ / 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	6,217
Granted | shares	3,080
Vested | shares	(3,102)
Forfeited or cancelled | shares	(345)
Outstanding balance | shares	5,850
Weighted-average grant date fair value, beginning balance | $ / shares	$ 100.42
Weighted-average grant date fair value, vested during period | $ / shares	126.46
Weighted-average grant date fair value, vested during period | $ / shares	103.39
Weighted-average grant date fair value, forfeited or cancelled during period | $ / shares	107.52
Weighted-average grant date fair value, ending balance | $ / shares	$ 112.14

Stock-Based Compensation (Sch_3

Stock-Based Compensation (Schedule Of Performance-Based Restricted Stock Unit Activity) (Details) - Restricted Stock Rights [Member] shares in Thousands	9 Months Ended
	Dec. 31, 2020$ / 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	579
Granted | shares	0
Forfeited or cancelled | shares	0
Outstanding balance | shares	579
Weighted-average grant date fair value, beginning balance | $ / shares	$ 110.51
Weighted-average grant date fair value, vested during period | $ / shares	0
Weighted-average grant date fair value, forfeited or cancelled during period | $ / shares	0
Weighted-average grant date fair value, ending balance | $ / shares	$ 110.51

Stock-Based Compensation (Sch_4

Stock-Based Compensation (Schedule Of Market-Based Restricted Stock Unit Activity) (Details) - Market-Based Restricted Stock Units [Member] shares in Thousands	9 Months Ended
	Dec. 31, 2020$ / 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	1,898
Granted | shares	874
Vested | shares	(157)
Forfeited or cancelled | shares	(420)
Outstanding balance | shares	2,195
Weighted-average grant date fair value, beginning balance | $ / shares	$ 128.41
Weighted-average grant date fair values of market-based restricted stock rights granted | $ / shares	145.78
Weighted-average grant date fair value, vested during period | $ / shares	113.72
Weighted-average grant date fair value, forfeited or cancelled during period | $ / shares	137.69
Weighted-average grant date fair value, ending balance | $ / shares	$ 134.60

Stock-Based Compensation (Sch_5

Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense By Statement Of Operations) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 111	$ 91	$ 326	$ 256
Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1	1	4	3
Research And Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	74	60	214	170
Marketing and Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	11	10	34	27
General And Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 25	$ 20	$ 74	$ 56

Stock-Based Compensation Schedu

Stock-Based Compensation Schedule of Share Repurchases (Details) - USD ($) shares in Millions, $ in Millions	Nov. 04, 2022	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Nov. 04, 2020	May 11, 2018
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value		$ 326	$ 0	$ 78	$ 305	$ 306	$ 305
May 2018 Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value		$ 0			$ 305			$ 78	$ 916
Stock Repurchased and Retired During Period, Shares		0			3.1			0.7	9.6
Stock Repurchase Program, Authorized Amount											$ 2,400
November 2020 Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value		$ 326						$ 326
Stock Repurchased and Retired During Period, Shares		2.5						2.5
Stock Repurchase Program, Authorized Amount										$ 2,600
Stock Repurchase Program Expiration Date	Nov. 4, 2022
Repurchase Program, Total
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value		$ 326			$ 305			$ 404	$ 916
Stock Repurchased and Retired During Period, Shares		2.5			3.1			3.2	9.6

Earnings Per Share (Computation

Earnings Per Share (Computation Of Basic Earnings And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share Reconciliation [Abstract]
Net income (loss)	$ 211	$ 346	$ 761	$ 2,621
Weighted Average Number of Shares Outstanding, Basic	290	292	289	294
Dilutive potential common shares related to stock award plans and from assumed exercise of stock options	2	2	3	2
Weighted Average Number of Shares Outstanding, Diluted	292	294	292	296
Earnings Per Share, Basic	$ 0.73	$ 1.18	$ 2.63	$ 8.91
Earnings Per Share, Diluted	$ 0.72	$ 1.18	$ 2.61	$ 8.85

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares shares in Thousands	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share Reconciliation [Abstract]
Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share, Amount	2,000	2,000

Segment Information (Net Revenu

Segment Information (Net Revenue By Timing Recognition) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Revenue Reconciling Item
Net revenue	$ 1,673	$ 1,593	$ 4,283	$ 4,150
Recognized at a point in time
Segment Reporting, Revenue Reconciling Item
Net revenue	860	772	1,639	1,649
Recognized over time
Segment Reporting, Revenue Reconciling Item
Net revenue	$ 813	$ 821	$ 2,644	$ 2,501

Segment Information (Net Reve_2

Segment Information (Net Revenue By Revenue Composition ) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Revenue Reconciling Item
Net revenue	$ 1,673	$ 1,593	$ 4,283	$ 4,150
Recognized at a point in time
Segment Reporting, Revenue Reconciling Item
Net revenue	860	772	1,639	1,649
Recognized over time
Segment Reporting, Revenue Reconciling Item
Net revenue	813	821	2,644	2,501
Full game, net revenue [Member]
Segment Reporting, Revenue Reconciling Item
Net revenue	722	689	1,363	1,531
Full game downloads, net revenue [Member]
Segment Reporting, Revenue Reconciling Item
Net revenue	347	286	733	600
Packaged goods, net revenue [Member]
Segment Reporting, Revenue Reconciling Item
Net revenue	375	403	630	931
Live services and other, net revenue [Member]
Segment Reporting, Revenue Reconciling Item
Net revenue	$ 951	$ 904	$ 2,920	$ 2,619

Segment Information (Net Reve_3

Segment Information (Net Revenue By Platform) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net Revenue by Platform [Line Items]
Net revenue	$ 1,673	$ 1,593	$ 4,283	$ 4,150
Console
Net Revenue by Platform [Line Items]
Net revenue	1,191	1,163	2,837	2,846
PC and other
Net Revenue by Platform [Line Items]
Net revenue	326	261	900	762
Mobile
Net Revenue by Platform [Line Items]
Net revenue	$ 156	$ 169	$ 546	$ 542

Segment Information (Net Reve_4

Segment Information (Net Revenue By Geographic Area) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Net revenue	$ 1,673	$ 1,593	$ 4,283	$ 4,150
North America
Revenue from External Customer [Line Items]
Net revenue	678	690	1,883	1,711
International
Revenue from External Customer [Line Items]
Net revenue	$ 995	$ 903	$ 2,400	$ 2,439