LEASES - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Operating Leases
Lease assets, non-current	$ 142	$ 145
Lease liabilities, current	21	23
Lease liabilities, non-current	152	154
Total lease liabilities	$ 173	$ 177
Weighted average discount rate	6.20%	5.80%
Weighted average remaining lease term (in years)	7 years 10 months 6 days	8 years 8 months 4 days
Finance Leases
Lease assets, non-current	$ 12	$ 16
Lease liabilities, current	6	6
Lease liabilities, non-current	21	26
Total lease liabilities	$ 27	$ 32
Weighted average remaining lease term (in years)	5 years 3 months 3 days	5 years 9 months 3 days
Weighted average discount rate	7.90%	8.00%
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property and equipment, net	Property and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of notes payable, finance leases, and commercial bank financing	Current portion of notes payable, finance leases, and commercial bank financing
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Notes payable, finance leases, and commercial bank financing, less current portion	Notes payable, finance leases, and commercial bank financing, less current portion
Sinclair Broadcast Group, LLC
Operating Leases
Lease assets, non-current	$ 142	$ 145
Lease liabilities, current	21	23
Lease liabilities, non-current	152	154
Total lease liabilities	$ 173	$ 177
Weighted average discount rate	6.20%	5.80%
Weighted average remaining lease term (in years)	7 years 10 months 6 days	8 years 8 months 4 days
Finance Leases
Lease assets, non-current	$ 12	$ 16
Lease liabilities, current	6	6
Lease liabilities, non-current	21	26
Total lease liabilities	$ 27	$ 32
Weighted average remaining lease term (in years)	5 years 3 months 3 days	5 years 9 months 3 days
Weighted average discount rate	7.90%	8.00%
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property and equipment, net	Property and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of notes payable, finance leases, and commercial bank financing	Current portion of notes payable, finance leases, and commercial bank financing
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Notes payable, finance leases, and commercial bank financing, less current portion	Notes payable, finance leases, and commercial bank financing, less current portion