Earnings Per Share

12 Months Ended

Dec. 31, 2022

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:


	2022				2021			2020
($ 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	$	2,330			2,659			1,323
Less: Income allocated to participating securities	2				7			6
Net income allocated to common shareholders	$	2,328	689	3.38	2,652	702	3.78	1,317	715	1.84
Earnings Per Diluted Share:
Net income available to common shareholders	$	2,330			2,659			1,323
Effect of dilutive securities:
Stock-based awards	—		6		—	9		—	5
Net income available to common shareholders plus assumed conversions	2,330				2,659			1,323
Less: Income allocated to participating securities	2				7			6
Net income allocated to common shareholders plus assumed conversions	$	2,328	695	3.35	2,652	711	3.73	1,317	720	1.83

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, 2022, 2021 and 2020 excludes 3 million, an immaterial amount and 7 million shares, respectively, of stock-based awards because their inclusion would have been anti-dilutive.