Acquisitions, Disposals and Other Transactions - Narrative (Details) $ in Millions	1 Months Ended					12 Months Ended
	May 31, 2020	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($) televisionStation	Oct. 31, 2019 USD ($)	May 31, 2019 USD ($)	Jun. 30, 2022 USD ($) business	Jun. 30, 2021 USD ($) acquistion	Jun. 30, 2020 USD ($)
Business Acquisition [Line Items]
Number of businesses acquired						3	1
Consideration transferred						$ 240
Cash paid to acquire businesses						252	$ 51	$ 1,102
Payments to acquire businesses, net of cash acquired						243	51	1,061
Goodwill						3,554	3,435	3,409
Sale of investments						$ 0	0	349
The Stars Group Inc.
Business Acquisition [Line Items]
Payments to acquire investments					$ 236
Percentage of ownership of equity interest					4.99%
FanDuel Group
Business Acquisition [Line Items]
Percentage of ownership interest that can be acquired in the future	18.50%
Option term to acquire an equity interest	10 years
Flutter Entertainment plc
Business Acquisition [Line Items]
Payments to acquire investments							$ 55	100
Percentage of ownership of equity interest						2.50%
Roku, Inc.
Business Acquisition [Line Items]
Payments to acquire investments			$ 40
Sale of investments			$ 340
Equity Securities, FV-NI, Unrealized Gain (Loss)								$ 210
Disposal | WJZY and WMYT Television Stations
Business Acquisition [Line Items]
Number of television stations sold | televisionStation			2
Disposition, cash received			$ 45
Maximum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life						10 years
Maximum | The Stars Group Inc.'s U S Business
Business Acquisition [Line Items]
Percentage of ownership interest that can be acquired in the future					50.00%
Credible Labs Inc
Business Acquisition [Line Items]
Consideration transferred				$ 260
Business acquisition, percentage of equity acquired				67.00%
Cash paid to acquire businesses			260
Payments to acquire businesses, net of cash acquired				$ 260
Provisional valuation, percentage of acquired business				100.00%
Consideration transferred allocated to amortizable intangible assets				$ 75
Goodwill				285
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value				$ (110)
Credible Labs Inc | Minimum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				5 years
Credible Labs Inc | Maximum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				10 years
Credible Labs Inc | Credible Labs Inc
Business Acquisition [Line Items]
Remaining percentage of equity not acquired by parent				33.00%
KCPQ, KZJO and WITI Television Stations
Business Acquisition [Line Items]
Consideration transferred			350
Cash paid to acquire businesses			350
Consideration transferred allocated to amortizable intangible assets			$ 100
Number of television stations acquired | televisionStation			3
Consideration transferred allocated to intangible assets			$ 210
Consideration transferred allocated to property, plant and equipment			$ 30
KCPQ, KZJO and WITI Television Stations | Retransmission Agreements
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life			8 years
KCPQ, KZJO and WITI Television Stations | FCC licenses
Business Acquisition [Line Items]
Consideration transferred allocated to intangible assets with indefinite lives			$ 110
Tubi, Inc.
Business Acquisition [Line Items]
Consideration transferred		$ 470
Payments to acquire businesses, net of cash acquired		445
Consideration transferred allocated to amortizable intangible assets		130
Goodwill		320
Potential additional consideration to be recognized as compensation expense		$ 45
Tubi, Inc. | Minimum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		3 years
Tubi, Inc. | Maximum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		10 years