Stockholders' Equity (Schedule of Changes in Stockholders' Equity) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019		Mar. 31, 2018
Increase (Decrease) in Stockholders' Equity
Balance, beginning of period		$ 10,406	$ 7,953	$ 9,594		$ 6,093
Net income		533	457	1,151		1,716
Other comprehensive income (loss)		2	(95)	5		85
Other		(31)	(32)	137		(69)
Transferred from Twenty-First Century Fox, Inc. investment to Accumulated other comprehensive (loss) income		(14)		(157)
Net (decrease) increase in Twenty-First Century Fox, Inc. investment		(2,285)	700	(2,119)		1,158
Balance, end of period		8,611	8,983	8,611		8,983
Fox Corporation Stockholders
Increase (Decrease) in Stockholders' Equity
Balance, beginning of period		10,394	7,953	9,594		6,093
Net income		529	457	1,141		1,716
Other comprehensive income (loss)		2	(95)	5		85
Other		(26)	(32)	136	[1]	(69)
Transferred from Twenty-First Century Fox, Inc. investment to Accumulated other comprehensive (loss) income	[2]	(14)		(157)
Net (decrease) increase in Twenty-First Century Fox, Inc. investment		(2,285)	700	(2,119)		1,158
Balance, end of period		8,600	8,983	8,600		8,983
Noncontrolling interests
Increase (Decrease) in Stockholders' Equity
Balance, beginning of period	[3]	12	0	0		0
Net income	[3]	4	0	10		0
Other comprehensive income (loss)	[3]	0	0	0		0
Other	[3]	(5)	0	1		0
Transferred from Twenty-First Century Fox, Inc. investment to Accumulated other comprehensive (loss) income	[3]	0		0
Net (decrease) increase in Twenty-First Century Fox, Inc. investment	[3]	0	0	0		0
Balance, end of period	[3]	$ 11	$ 0	$ 11		$ 0

[1] Approximately $200 million was reclassified to equity from Redeemable noncontrolling interests (See Note 4 – Fair Value).

[2] See Note 10 – Pension and Other Postretirement Benefits.

[3] Excludes Redeemable noncontrolling interests which are reflected in temporary equity (See Note 4 – Fair Value under the heading “Redeemable Noncontrolling Interests”).