Commitments and Contingencies - Schedule of Commitments by Fiscal Year Maturity (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Commitments and Contingencies [Line Items]
Total commitments and contractual obligations	$ 8,110
Commitments and contractual obligations, Payments due Less than 1 year	1,419
Commitments and contractual obligations, Payments due 1-3 years	3,114
Commitments and contractual obligations, Payments due 3-5 years	1,299
Commitments and contractual obligations, Payments due More than 5 years	2,278
Total future minimum lease payments	1,562
Operating leases, Payments Less than one year	185
Operating leases, Payments due More than 5 years	780
Total future minimum lease payments	106
Finance leases, Less than 1 Year	31
Finance lease, Payments due more than 5 years	0
Total borrowings	2,313	$ 1,259
Borrowings, Payments due Less than 1 year	0
Borrowings, Payments due More than 5 years	1,060
Purchase Obligations
Commitments and Contingencies [Line Items]
Purchase obligations, Total	1,042
Purchase obligations, Payments due Less than 1 year	444
Purchase obligations, Payments due 1-3 years	402
Purchase obligations, Payments due 3-5 years	106
Purchase obligations, Payments due More than 5 years	90
Borrowings
Commitments and Contingencies [Line Items]
Total borrowings	2,224
Borrowings, Payments due Less than 1 year	0
Borrowings, Payments due 1-3 years	824
Borrowings, Payments due 3-5 years	340
Borrowings, Payments due More than 5 years	1,060
Interest Payments on Borrowings
Commitments and Contingencies [Line Items]
Interest payments on borrowings, Total	438
Interest payments on borrowings, Payments due Less than 1 year	87
Interest payments on borrowings, Payments due 1-3 years	136
Interest payments on borrowings, Payments due 3-5 years	92
Interest payments on borrowings, Payments due More than 5 years	123
Land and Buildings
Commitments and Contingencies [Line Items]
Total future minimum lease payments	1,313
Operating leases, Payments Less than one year	153
Operating leases, Payments due 1-3 years	267
Operating leases, Payments due 3-5 years	224
Operating leases, Payments due More than 5 years	669
Plant and Machinery
Commitments and Contingencies [Line Items]
Total future minimum lease payments	13
Operating leases, Payments Less than one year	7
Operating leases, Payments due 1-3 years	5
Operating leases, Payments due 3-5 years	1
Operating leases, Payments due More than 5 years	0
Sports Programming Rights
Commitments and Contingencies [Line Items]
Sports programming rights, Total	2,022
Sports programming rights, Payments due Less than 1 year	402
Sports programming rights, Payments due 1-3 years	938
Sports programming rights, Payments due 3-5 years	446
Sports programming rights, Payments due More than 5 years	236
Programming Costs
Commitments and Contingencies [Line Items]
Programming costs, Total	745
Programming costs, Payments due Less than 1 year	265
Programming costs, Payments due 1-3 years	430
Programming costs, Payments due 3-5 years	36
Programming costs, Payments due More than 5 years	14
Transmission Costs
Commitments and Contingencies [Line Items]
Transmission costs, Total	207
Transmission costs, Payments due Less than 1 year	30
Transmission costs, Payments due 1-3 years	54
Transmission costs, Payments due 3-5 years	37
Transmission costs, Payments due More than 5 years	86
Total future minimum lease payments	106
Finance leases, Less than 1 Year	31
Finance lease, Payments 1-3 years	58
Finance leases, Payments due 3-5 years	17
Finance lease, Payments due more than 5 years	$ 0