v3.26.1
NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition, Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation of Revenue [Line Items]    
Revenue $ 807 $ 776
Distribution revenue    
Disaggregation of Revenue [Line Items]    
Revenue 458 451
Core advertising revenue    
Disaggregation of Revenue [Line Items]    
Revenue 305 292
Political advertising revenue    
Disaggregation of Revenue [Line Items]    
Revenue 18 6
Operating Segments | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 701 694
Operating Segments | Distribution revenue | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 402 395
Operating Segments | Core advertising revenue | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 261 271
Operating Segments | Political advertising revenue | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 18 6
Sinclair Broadcast Group, LLC | Operating Segments | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 701 694
Sinclair Broadcast Group, LLC | Operating Segments | Distribution revenue | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 402 395
Sinclair Broadcast Group, LLC | Operating Segments | Core advertising revenue | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 261 271
Sinclair Broadcast Group, LLC | Operating Segments | Political advertising revenue | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue 18 6
Sinclair Broadcast Group, LLC | Operating Segments | Other media | Local Media    
Disaggregation of Revenue [Line Items]    
Revenue $ 20 $ 22