Fair Value (Liabilities Measured on Recurring Basis) (Details) - Redeemable Noncontrolling Interests - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Redemption of noncontrolling interests		$ 135	$ 0
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period		(310)	(207)	$ (305)	$ (189)
Acquisitions	[1]	0	(109)	0	(109)
Net income		(4)	(3)	(8)	(12)
Redemption of noncontrolling interests	[2]	135	0	135	0
Distributions		5	5	11	13
Accretion and other	[3]	(28)	98	(35)	81
End of period		$ (202)	$ (216)	$ (202)	$ (216)

[1] See Note 2—Acquisitions, Disposals and Other Transactions under the heading “Credible Acquisition.”

[2] As a result of the exercise of a portion of the put rights held by the sports network minority shareholder during the three months ended December 31, 2020, approximately $135 million was reclassified out of Redeemable noncontrolling interests. The Company will pay half of the purchase price in cash at closing and deliver a three-year promissory note for the balance. The Company recorded $67 million in Current liabilities and the remaining balance in Non-current liabilities in the Balance Sheet.

[3] As a result of the expiration of a portion of the put rights held by the sports network minority shareholder during the three months ended December 31, 2019, approximately $120 million was reclassified into equity.