Earnings Per Share

12 Months Ended

Dec. 31, 2023

The following table provides the calculation of earnings per share and the reconciliation of earnings per share and earnings per diluted share for the years ended December 31:


	2023				2022			2021
($ in millions, except per share data)	Income		Average Shares	Per Share Amount	Income	Average Shares	Per Share Amount	Income	Average Shares	Per Share Amount
Earnings Per Share:
Net income available to common shareholders	$	2,212			2,330			2,659
Less: Income allocated to participating securities	—				2			7
Net income allocated to common shareholders	$	2,212	684	3.23	2,328	689	3.38	2,652	702	3.78
Earnings Per Diluted Share:
Net income available to common shareholders	$	2,212			2,330			2,659
Effect of dilutive securities:
Stock-based awards	—		4		—	6		—	9
Net income available to common shareholders plus assumed conversions	2,212				2,330			2,659
Less: Income allocated to participating securities	—				2			7
Net income allocated to common shareholders plus assumed conversions	$	2,212	688	3.22	2,328	695	3.35	2,652	711	3.73

Shares are excluded from the computation of earnings per diluted share when their inclusion has an anti-dilutive effect on earnings per share. The diluted earnings per share computation for the years ended December 31, 2023, 2022 and 2021 excludes 6 million, 3 million and an immaterial amount shares, respectively, of stock-based awards because their inclusion would have been anti-dilutive.