Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Net income available to News Corporation stockholders-basic and diluted	$ 65	$ 27
Weighted-average number of shares of common stock outstanding-basic	579.5	578.8
Dilutive effect of equity awards	0.4	0.7
Weighted-average number of shares of common stock outstanding-diluted	579.9	579.5
Net income per share available to News Corporation stockholders-basic	$ 0.11	$ 0.05
Net income per share available to News Corporation stockholders-diluted	$ 0.11	$ 0.05

Net Income (Loss) Available to Common Stockholders, Basic and Diluted

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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