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Earnings per Share
 9 Months Ended
Sep. 30, 2025
Earnings Per Share [Abstract]  
Earnings per Share Earnings per Share
The computations of basic and diluted earnings per share were as follows:
Three Months Ended September 30,
Nine Months Ended September 30,
2025
2024
2025
2024
(in millions, except per share amounts)
Numerator:
Net income$912 $511 $2,555 $2,330 
Denominator:
Basic: Weighted-average common shares outstanding96.3 100.4 97.4 101.6 
Effect of potentially dilutive nonqualified stock options and other share-based awards1.5 1.8 1.5 1.8 
Diluted: Weighted-average common shares outstanding97.8 102.2 98.9 103.4 
Earnings per share:
Basic$9.47 $5.09 $26.23 $22.93 
Diluted$9.33 $5.00 $25.83 $22.53 
The calculation of diluted earnings per share includes the dilutive effect of the assumed exercise or issuance of stock-based awards using the treasury stock method. The calculation excludes the incremental effect of nil options for both the three months ended September 30, 2025 and 2024, and 0.1 million and nil options for the nine months ended September 30, 2025 and 2024, due to their anti-dilutive effect.