Accrued acquisition-related costs related to purchase price amounts withheld to support indemnification obligations.

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Amount of direct costs of the business combination including legal, accounting, and other costs incurred during the period to consummate the business acquisition.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Acquisitions 3 (Details) € in Millions, $ in Millions					2 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
Acquisitions 3 (Details) € in Millions, $ in Millions	Mar. 31, 2017 USD ($)	Jan. 18, 2017 EUR (€)	Jan. 18, 2017 USD ($)	Jul. 08, 2015 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Business Combinations [Abstract]
Accrued acquisition-related costs related to purchase price amounts withheld subject to indemnification protections	$ 12				$ 12		$ 3	$ 12	$ 3
Business Acquisition
Total revenue								4,036	4,025	$ 4,262
Net income (loss)								$ 775	783	$ 846
Automic
Business Acquisition
Percentage of voting equity interest / outstanding shares of common stock acquired		100.00%	100.00%
Payments to acquire businesses		€ 630	$ 675
Total revenue					25
Net income (loss)					$ (2)
Veracode
Business Acquisition
Percentage of voting equity interest / outstanding shares of common stock acquired	100.00%				100.00%			100.00%
Payments to acquire businesses	$ 618
Fiscal Year 2017 Acquisitions \| General and Administrative
Business Acquisition
Acquisition transaction costs								$ 10
Rally
Business Acquisition
Percentage of voting equity interest / outstanding shares of common stock acquired				100.00%
Payments to acquire businesses				$ 519
Fiscal Year 2016 Acquisitions \| General and Administrative
Business Acquisition
Acquisition transaction costs									$ 20
Rally and Xceedium
Business Acquisition
Total revenue						$ 35	97
Net income (loss)						$ (5)	$ (33)