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Affiliate Transactions (Tables)
3 Months Ended
Mar. 31, 2025
Related Party Transactions [Abstract]  
Schedule of Affiliate Revenue
The following table provides details of affiliate revenue:

Three Months Ended March 31,
20252024
 (Dollars in millions)
Direct affiliate revenue
$345 401 
Allocated affiliate revenue
137 145 
Total operating revenue—affiliates
$482 546