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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense and Tax Benefits
The following table reflects activity related to our stock-based compensation arrangements (in millions):
Year Ended December 31,
202420232022
Stock-based compensation expense:
Restricted stock$67 $69 $71 
Performance awards33 38 32 
Total stock-based compensation expense$100 $107 $103 
Tax benefit recognized on stock-based compensation expense$13 $14 $15 
Tax benefit realized for tax deductions resulting from
exercises and vestings
— 2 2 
Schedule of Restricted Stock Awards A summary of the status of our restricted stock awards is presented in the following table:





Number of
Shares
Weighted-
Average
Grant-Date
Fair Value
Per Share
Nonvested shares as of January 1, 2024902,846 $112.01 
Granted495,444 131.68 
Vested(594,001)108.87 
Forfeited(9,069)111.21 
Nonvested shares as of December 31, 2024795,220 126.63 
The following table reflects activity related to our restricted stock:
Year Ended December 31,
202420232022
Weighted-average grant-date fair value per share of
restricted stock granted
$131.68 $125.57 $112.88 
Fair value of restricted stock vested (in millions)82 99 99