Commitments and Contingencies - Schedule of Commitments by Fiscal Year Maturity (Detail) - Sports Programming Rights $ in Millions	Dec. 31, 2020 USD ($)
Commitments and Contingencies [Line Items]
Sports programming rights, Total	$ 2,258
Sports programming rights, Payments due Less than 1 year	223
Sports programming rights, Payments due 1-3 years	896
Sports programming rights, Payments due 3-5 years	737
Sports programming rights, Payments due More than 5 years	$ 402