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Earnings and Dividends per Share (Tables)
 3 Months Ended
Mar. 31, 2024
Earnings and Dividends Per Share [Abstract]  
Schedule Of Net Income Attributable To Common Stockholders Diluted earnings per share include the effects of certain stock options and performance stock units.
Three Months Ended March 31,
20242023
Net income attributable to Westlake Corporation$174 $394 
Less:
Net income attributable to participating securities(1)(2)
Net income attributable to common shareholders$173 $392 
Reconciliation Of Denominator For Basic And Diluted Earnings Per Share
The following table reconciles the denominator for the basic and diluted earnings per share computations shown in the consolidated statements of operations:
Three Months Ended March 31,
20242023
Weighted average common shares—basic128,359,983 127,548,287 
Plus incremental shares from:
Assumed exercise of options and vesting of performance stock units
660,387 911,081 
Weighted average common shares—diluted129,020,370 128,459,368 
Earnings per common share attributable to Westlake Corporation:
Basic$1.35 $3.07 
Diluted$1.34 $3.05 
Dividends Per Share
Dividends per Share
Dividends declared per common share for the three months ended March 31, 2024 and 2023 were as follows:
Three Months Ended March 31,
20242023
Dividends per common share$0.5000 $0.3570