v3.25.1
Fair Value Measurements - Schedule of Estimated Fair Values and Carrying Amounts of Long-term Debt Not Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Nexstar [Member] | Secured Debt [Member] | Term Loan A, due June 2027 [Member] | Level 3 [Member] | Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] $ 2,088 $ 2,117
Nexstar [Member] | Secured Debt [Member] | Term Loan A, due June 2027 [Member] | Level 3 [Member] | Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] 2,086 2,093
Nexstar [Member] | Secured Debt [Member] | Term Loan B, due September 2026 [Member] | Level 3 [Member] | Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] 1,346 1,344
Nexstar [Member] | Secured Debt [Member] | Term Loan B, due September 2026 [Member] | Level 3 [Member] | Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] 1,355 1,362
Nexstar [Member] | Senior Subordinated Notes [Member] | 5.625% Notes, due July 2027 [Member] | Level 2 [Member] | Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [2] 1,716 1,716
Nexstar [Member] | Senior Subordinated Notes [Member] | 5.625% Notes, due July 2027 [Member] | Level 2 [Member] | Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [2] 1,680 1,667
Nexstar [Member] | Senior Subordinated Notes [Member] | 4.75% Notes, due November 2028 [Member] | Level 2 [Member] | Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [2] 995 995
Nexstar [Member] | Senior Subordinated Notes [Member] | 4.75% Notes, due November 2028 [Member] | Level 2 [Member] | Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [2] 931 930
Mission [Member] | Secured Debt [Member] | Term Loan B, due June 2028 [Member] | Level 3 [Member] | Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] 288 289
Mission [Member] | Secured Debt [Member] | Term Loan B, due June 2028 [Member] | Level 3 [Member] | Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] 288 290
Mission [Member] | Secured Debt [Member] | Revolving loans, due June 2027 [Member] | Level 3 [Member] | Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] 62 62
Mission [Member] | Secured Debt [Member] | Revolving loans, due June 2027 [Member] | Level 3 [Member] | Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Carrying Amount and Fair Value of Long-term Debt [1] $ 61 $ 61
[1] The fair value of senior secured and revolving credit facilities is computed based on borrowing rates currently available to the Company for bank loans with similar terms and average maturities. These fair value measurements are considered Level 3, as significant inputs to the fair value calculation are unobservable in the market.
[2] The fair value of the Company’s fixed rate debt is estimated based on bid prices obtained from an investment banking firm and are considered Level 2.