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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Summary of nonvested restricted stock units
A summary of UScellular nonvested restricted stock units and changes during 2024 is presented in the table below:
Common Restricted Stock UnitsNumberWeighted Average Grant Date Fair Value
Nonvested at December 31, 20232,548,000 $27.26 
Granted728,000 $35.67 
Vested(782,000)$31.98 
Forfeited(56,000)$27.68 
Nonvested at December 31, 20242,438,000 $29.01 
Summary of nonvested performance share units
A summary of UScellular's nonvested performance share units and changes during 2024 is presented in the table below:
Common Performance Share UnitsNumberWeighted Average Grant Date Fair Value
Nonvested at December 31, 20231,457,000 $27.37 
Granted409,000 $36.59 
Vested(263,000)$20.06 
Change in units based on approved performance factors114,000 $23.06 
Forfeited(109,000)$21.35 
Nonvested at December 31, 20241,608,000 $31.91 
Stock-based compensation
The following table summarizes stock‑based compensation expense recognized during 2024, 2023 and 2022:
Year Ended December 31,202420232022
(Dollars in millions)   
Restricted stock unit awards30 20 18 
Performance share unit awards24 2 5 
Awards under Non-Employee Director compensation plan1 1 1 
Total stock-based compensation expense, before income taxes55 23 24 
Income tax benefit(14)(6)(6)
Total stock-based compensation expense, net of income taxes$41 $17 $18 
Stock-based compensation, allocation by financial statement line item
The following table provides a summary of the classification of stock-based compensation expense included in the Consolidated Statement of Operations for the years ended:
December 31,202420232022
(Dollars in millions)   
Selling, general and administrative expense$48 $19 $20 
System operations expense7 4 4 
Total stock-based compensation expense$55 $23 $24