STOCKHOLDERS’ EQUITY - Additional Information (Details) $ / shares in Units, $ in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2026 USD ($) vote $ / shares shares	Jun. 30, 2026 AUD ($)	Jun. 30, 2025 USD ($) $ / shares shares	Jun. 30, 2024 USD ($)	Feb. 06, 2026 AUD ($)	Jul. 15, 2025 USD ($)	Sep. 30, 2021	Sep. 22, 2021 USD ($)
Class of Stock [Line Items]
Number of votes per share | vote	1
Authorized repurchase amount | $						$ 1,000		$ 1,000
Remaining authorized repurchase amount | $	$ 667
Repurchase of News Corp shares | $	641		$ 150	$ 117
Majority shareholder ownership percentage							44.00%
REA Group
Class of Stock [Line Items]
Authorized repurchase amount | $					$ 200
Repurchase of News Corp shares	$ 141	$ 200
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	1,500,000,000		1,500,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01		$ 0.01
Common stock outstanding, net of treasury stock (in shares)	362,139,890		376,718,696
Common Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	750,000,000		750,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01		$ 0.01
Common stock outstanding, net of treasury stock (in shares)	181,281,012		188,666,990
Common Class B | Maximum
Class of Stock [Line Items]
Majority shareholder ownership percentage							44.00%
Series Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	25,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Common stock outstanding, net of treasury stock (in shares)	0
Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	25,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.01