Net Income Per Share
The calculations of basic and diluted net income per share are as follows:
Year Ended December 31,
(In millions, except per share data)202520242023
Net income - basic and diluted$4,504.9 $4,412.6 $3,953.6 
Weighted average shares - basic104.6 107.9 106.7 
Effect of dilutive securities:
Stock options1.9 4.8 4.9 
Restricted stock awards and restricted stock units2.1 2.4 2.1 
Weighted average shares - diluted108.6 115.1 113.7 
Net income per share - basic$43.07 $40.90 $37.05 
Net income per share - diluted$41.48 $38.34 $34.77 
Shares which have been excluded from diluted per share amounts because their effect would have been antidilutive include the following:
Year Ended December 31,
(Shares in millions)202520242023
Stock options6.2 1.6 1.8 
Restricted stock awards and restricted stock units
0.2 — — 

Historical Timeline

Fiscal YearFiled
2025Feb 4, 2026Showing above
2024Feb 5, 2025
2023Feb 5, 2024
2022Feb 6, 2023

About Earnings Per Share Disclosures

The earnings per share disclosure breaks down the calculation from net income to both basic and diluted EPS, revealing the full impact of a company's capital structure on per-share economics. The reconciliation between basic and diluted share counts exposes how many stock options, RSUs, convertible securities, and warrants are potentially dilutive to existing shareholders.

Key signals: a widening gap between basic and diluted shares indicates growing dilution from equity compensation or convertible instruments. Anti-dilutive securities excluded from the diluted calculation deserve attention — they represent latent dilution that will materialize if the stock price rises. Watch for the effect of share buybacks on per-share metrics: EPS growth driven primarily by repurchases rather than income growth signals weakening fundamentals. Compare year-over-year changes in the diluted share count against equity compensation expense to assess whether management is effectively managing dilution.