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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense and Related Tax Benefits
Second QuarterFirst Six Months
2025202420252024
($ in millions)
Stock-based compensation expense$17 $13 $35 $32 
Total tax benefit
Schedule of Long-Term Incentive Plan Awards
During 2025, we granted stock options, restricted stock units (RSUs) and performance share units (PSUs) pursuant to the Long-Term Incentive Plan (LTIP), as follows:

Second QuarterFirst Six Months
GrantedWeighted-Average Grant-Date Fair ValueGrantedWeighted-Average Grant-Date Fair Value
Stock options— $— 80,067 $87.33 
RSUs3,204 220.12 193,338 254.74 
PSUs— — 66,334 296.55 
Summary of Stock Options, Restricted Stock Units, and Performance Share Units
Second QuarterFirst Six Months
2025202420252024
($ in millions)
Options exercised26,35217,757 68,904 114,974 
Cash received upon exercise$$$$11 
Related tax benefits realized— 
Second QuarterFirst Six Months
2025202420252024
($ in millions)
RSUs vested10,454 12,494 163,218 169,145 
Common Stock issued net of tax withholding6,225 9,016 113,482 117,266 
Related tax benefits realized$— $— $$— 
First Six Months
20252024
($ in millions)
PSUs earned8,540 41,580 
Common Stock issued net of tax withholding5,633 26,056 
Related tax benefits realized$— $—